java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label19_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 00:36:58,740 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 00:36:58,742 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 00:36:58,759 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 00:36:58,759 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 00:36:58,760 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 00:36:58,764 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 00:36:58,765 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 00:36:58,767 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 00:36:58,768 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 00:36:58,769 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 00:36:58,769 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 00:36:58,770 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 00:36:58,771 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 00:36:58,772 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 00:36:58,773 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 00:36:58,774 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 00:36:58,776 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 00:36:58,778 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 00:36:58,780 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 00:36:58,781 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 00:36:58,782 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 00:36:58,785 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 00:36:58,785 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 00:36:58,786 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 00:36:58,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 00:36:58,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 00:36:58,791 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 00:36:58,792 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 00:36:58,795 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 00:36:58,795 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 00:36:58,796 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 00:36:58,796 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 00:36:58,796 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 00:36:58,798 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 00:36:58,799 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 00:36:58,799 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-07-24 00:36:58,831 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 00:36:58,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 00:36:58,833 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 00:36:58,833 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-07-24 00:36:58,834 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-07-24 00:36:58,834 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-07-24 00:36:58,834 INFO L133 SettingsManager]: * Use SBE=true [2018-07-24 00:36:58,835 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 00:36:58,835 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 00:36:58,835 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 00:36:58,836 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 00:36:58,837 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 00:36:58,837 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 00:36:58,837 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 00:36:58,837 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 00:36:58,838 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 00:36:58,838 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 00:36:58,838 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 00:36:58,838 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 00:36:58,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:36:58,839 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 00:36:58,839 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 00:36:58,839 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 00:36:58,839 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-07-24 00:36:58,839 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 00:36:58,839 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 00:36:58,840 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 00:36:58,840 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 00:36:58,905 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 00:36:58,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 00:36:58,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 00:36:58,924 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 00:36:58,924 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 00:36:58,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label19_false-unreach-call.c [2018-07-24 00:36:59,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae883eb3/955fab3c928049d3a8ab2c815e3f2cf0/FLAG5ae357d9b [2018-07-24 00:36:59,790 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 00:36:59,791 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label19_false-unreach-call.c [2018-07-24 00:36:59,833 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae883eb3/955fab3c928049d3a8ab2c815e3f2cf0/FLAG5ae357d9b [2018-07-24 00:36:59,857 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ae883eb3/955fab3c928049d3a8ab2c815e3f2cf0 [2018-07-24 00:36:59,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 00:36:59,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 00:36:59,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 00:36:59,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 00:36:59,883 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 00:36:59,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:36:59" (1/1) ... [2018-07-24 00:36:59,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a59828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:36:59, skipping insertion in model container [2018-07-24 00:36:59,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:36:59" (1/1) ... [2018-07-24 00:37:00,322 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 00:37:01,523 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:37:01,542 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 00:37:02,353 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 00:37:02,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02 WrapperNode [2018-07-24 00:37:02,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 00:37:02,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 00:37:02,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 00:37:02,730 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 00:37:02,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:02,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:03,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 00:37:03,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 00:37:03,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 00:37:03,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 00:37:04,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:04,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:04,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:04,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:05,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:05,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:05,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (1/1) ... [2018-07-24 00:37:05,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 00:37:05,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 00:37:05,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 00:37:05,412 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 00:37:05,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 00:37:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-07-24 00:37:05,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 00:37:05,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 00:37:18,879 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 00:37:18,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:37:18 BoogieIcfgContainer [2018-07-24 00:37:18,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 00:37:18,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 00:37:18,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 00:37:18,885 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 00:37:18,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:36:59" (1/3) ... [2018-07-24 00:37:18,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3313ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:37:18, skipping insertion in model container [2018-07-24 00:37:18,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:37:02" (2/3) ... [2018-07-24 00:37:18,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3313ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:37:18, skipping insertion in model container [2018-07-24 00:37:18,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:37:18" (3/3) ... [2018-07-24 00:37:18,889 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label19_false-unreach-call.c [2018-07-24 00:37:18,899 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 00:37:18,909 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 00:37:18,976 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 00:37:18,977 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 00:37:18,977 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 00:37:18,977 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 00:37:18,977 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 00:37:18,977 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 00:37:18,978 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 00:37:18,978 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 00:37:18,978 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 00:37:19,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-07-24 00:37:19,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-24 00:37:19,029 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:19,030 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:37:19,030 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:19,035 INFO L82 PathProgramCache]: Analyzing trace with hash 670581594, now seen corresponding path program 1 times [2018-07-24 00:37:19,037 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:19,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:19,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:19,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:19,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:37:19,404 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:19,405 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:37:19,409 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:19,421 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:19,421 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:19,423 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-07-24 00:37:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:37:38,347 INFO L93 Difference]: Finished difference Result 3993 states and 7498 transitions. [2018-07-24 00:37:38,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:37:38,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-07-24 00:37:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:37:38,400 INFO L225 Difference]: With dead ends: 3993 [2018-07-24 00:37:38,400 INFO L226 Difference]: Without dead ends: 2887 [2018-07-24 00:37:38,412 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2887 states. [2018-07-24 00:37:38,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2887 to 1936. [2018-07-24 00:37:38,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2018-07-24 00:37:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 3550 transitions. [2018-07-24 00:37:38,599 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 3550 transitions. Word has length 18 [2018-07-24 00:37:38,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:37:38,599 INFO L471 AbstractCegarLoop]: Abstraction has 1936 states and 3550 transitions. [2018-07-24 00:37:38,600 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:37:38,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 3550 transitions. [2018-07-24 00:37:38,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-24 00:37:38,605 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:38,605 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:37:38,606 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:38,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1916991881, now seen corresponding path program 1 times [2018-07-24 00:37:38,607 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:38,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:38,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:38,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:38,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:37:39,097 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:39,097 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:37:39,101 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:39,101 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:39,102 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:39,102 INFO L87 Difference]: Start difference. First operand 1936 states and 3550 transitions. Second operand 4 states. [2018-07-24 00:37:50,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:37:50,878 INFO L93 Difference]: Finished difference Result 7047 states and 13259 transitions. [2018-07-24 00:37:50,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:37:50,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2018-07-24 00:37:50,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:37:50,908 INFO L225 Difference]: With dead ends: 7047 [2018-07-24 00:37:50,909 INFO L226 Difference]: Without dead ends: 5113 [2018-07-24 00:37:50,914 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:50,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2018-07-24 00:37:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 5110. [2018-07-24 00:37:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5110 states. [2018-07-24 00:37:51,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5110 states to 5110 states and 8027 transitions. [2018-07-24 00:37:51,013 INFO L78 Accepts]: Start accepts. Automaton has 5110 states and 8027 transitions. Word has length 87 [2018-07-24 00:37:51,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:37:51,014 INFO L471 AbstractCegarLoop]: Abstraction has 5110 states and 8027 transitions. [2018-07-24 00:37:51,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:37:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5110 states and 8027 transitions. [2018-07-24 00:37:51,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-24 00:37:51,019 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:37:51,019 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:37:51,019 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:37:51,020 INFO L82 PathProgramCache]: Analyzing trace with hash 2105908058, now seen corresponding path program 1 times [2018-07-24 00:37:51,020 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:37:51,020 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:37:51,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:51,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:37:51,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:37:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:37:51,199 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:37:51,199 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:37:51,199 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:37:51,200 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:37:51,200 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:37:51,200 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:37:51,201 INFO L87 Difference]: Start difference. First operand 5110 states and 8027 transitions. Second operand 4 states. [2018-07-24 00:38:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:04,619 INFO L93 Difference]: Finished difference Result 18958 states and 30019 transitions. [2018-07-24 00:38:04,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:38:04,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2018-07-24 00:38:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:04,682 INFO L225 Difference]: With dead ends: 18958 [2018-07-24 00:38:04,682 INFO L226 Difference]: Without dead ends: 13850 [2018-07-24 00:38:04,692 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:04,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13850 states. [2018-07-24 00:38:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13850 to 13842. [2018-07-24 00:38:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13842 states. [2018-07-24 00:38:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13842 states to 13842 states and 19935 transitions. [2018-07-24 00:38:04,940 INFO L78 Accepts]: Start accepts. Automaton has 13842 states and 19935 transitions. Word has length 100 [2018-07-24 00:38:04,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:04,941 INFO L471 AbstractCegarLoop]: Abstraction has 13842 states and 19935 transitions. [2018-07-24 00:38:04,941 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:38:04,941 INFO L276 IsEmpty]: Start isEmpty. Operand 13842 states and 19935 transitions. [2018-07-24 00:38:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-24 00:38:04,944 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:04,944 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:38:04,945 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:04,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1628648584, now seen corresponding path program 1 times [2018-07-24 00:38:04,945 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:04,945 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:04,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:04,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:04,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:05,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:05,347 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:05,347 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:38:05,347 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:38:05,348 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:38:05,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:05,348 INFO L87 Difference]: Start difference. First operand 13842 states and 19935 transitions. Second operand 4 states. [2018-07-24 00:38:16,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:16,790 INFO L93 Difference]: Finished difference Result 52141 states and 75599 transitions. [2018-07-24 00:38:16,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:38:16,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2018-07-24 00:38:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:16,905 INFO L225 Difference]: With dead ends: 52141 [2018-07-24 00:38:16,905 INFO L226 Difference]: Without dead ends: 38301 [2018-07-24 00:38:16,922 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:38:16,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38301 states. [2018-07-24 00:38:17,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38301 to 38276. [2018-07-24 00:38:17,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38276 states. [2018-07-24 00:38:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38276 states to 38276 states and 50518 transitions. [2018-07-24 00:38:17,463 INFO L78 Accepts]: Start accepts. Automaton has 38276 states and 50518 transitions. Word has length 120 [2018-07-24 00:38:17,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:17,464 INFO L471 AbstractCegarLoop]: Abstraction has 38276 states and 50518 transitions. [2018-07-24 00:38:17,464 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 00:38:17,464 INFO L276 IsEmpty]: Start isEmpty. Operand 38276 states and 50518 transitions. [2018-07-24 00:38:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-24 00:38:17,469 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:17,470 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:38:17,470 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:17,470 INFO L82 PathProgramCache]: Analyzing trace with hash 576774397, now seen corresponding path program 1 times [2018-07-24 00:38:17,474 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:17,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:17,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:17,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:17,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:17,976 WARN L169 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-07-24 00:38:18,047 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:18,048 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:18,048 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:38:18,048 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:38:18,049 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:38:18,049 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:38:18,049 INFO L87 Difference]: Start difference. First operand 38276 states and 50518 transitions. Second operand 5 states. [2018-07-24 00:38:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:40,857 INFO L93 Difference]: Finished difference Result 128737 states and 168575 transitions. [2018-07-24 00:38:40,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:38:40,860 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-07-24 00:38:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:40,984 INFO L225 Difference]: With dead ends: 128737 [2018-07-24 00:38:40,984 INFO L226 Difference]: Without dead ends: 90463 [2018-07-24 00:38:41,041 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:38:41,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90463 states. [2018-07-24 00:38:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90463 to 72222. [2018-07-24 00:38:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72222 states. [2018-07-24 00:38:42,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72222 states to 72222 states and 89838 transitions. [2018-07-24 00:38:42,546 INFO L78 Accepts]: Start accepts. Automaton has 72222 states and 89838 transitions. Word has length 135 [2018-07-24 00:38:42,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:42,547 INFO L471 AbstractCegarLoop]: Abstraction has 72222 states and 89838 transitions. [2018-07-24 00:38:42,547 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:38:42,547 INFO L276 IsEmpty]: Start isEmpty. Operand 72222 states and 89838 transitions. [2018-07-24 00:38:42,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-24 00:38:42,549 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:42,549 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:38:42,549 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:42,550 INFO L82 PathProgramCache]: Analyzing trace with hash 964067941, now seen corresponding path program 1 times [2018-07-24 00:38:42,550 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:42,550 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:42,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:42,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:42,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:42,701 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:38:42,701 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 00:38:42,702 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 00:38:42,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 00:38:42,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:38:42,702 INFO L87 Difference]: Start difference. First operand 72222 states and 89838 transitions. Second operand 3 states. [2018-07-24 00:38:52,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:38:52,904 INFO L93 Difference]: Finished difference Result 196436 states and 244371 transitions. [2018-07-24 00:38:52,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 00:38:52,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2018-07-24 00:38:52,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:38:53,054 INFO L225 Difference]: With dead ends: 196436 [2018-07-24 00:38:53,055 INFO L226 Difference]: Without dead ends: 117102 [2018-07-24 00:38:53,113 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 00:38:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117102 states. [2018-07-24 00:38:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117102 to 114734. [2018-07-24 00:38:54,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114734 states. [2018-07-24 00:38:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114734 states to 114734 states and 137047 transitions. [2018-07-24 00:38:54,344 INFO L78 Accepts]: Start accepts. Automaton has 114734 states and 137047 transitions. Word has length 144 [2018-07-24 00:38:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:38:54,345 INFO L471 AbstractCegarLoop]: Abstraction has 114734 states and 137047 transitions. [2018-07-24 00:38:54,346 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 00:38:54,346 INFO L276 IsEmpty]: Start isEmpty. Operand 114734 states and 137047 transitions. [2018-07-24 00:38:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-07-24 00:38:54,358 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:38:54,358 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:38:54,358 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:38:54,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1570115156, now seen corresponding path program 1 times [2018-07-24 00:38:54,359 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:38:54,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:38:54,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:54,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:54,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:38:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 80 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 00:38:54,783 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:38:54,783 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:38:54,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:38:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:38:55,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:38:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-07-24 00:38:55,822 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:38:55,822 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-07-24 00:38:55,823 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 00:38:55,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 00:38:55,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 00:38:55,824 INFO L87 Difference]: Start difference. First operand 114734 states and 137047 transitions. Second operand 6 states. [2018-07-24 00:38:57,138 WARN L169 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-07-24 00:39:17,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:39:17,527 INFO L93 Difference]: Finished difference Result 237367 states and 282486 transitions. [2018-07-24 00:39:17,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 00:39:17,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 261 [2018-07-24 00:39:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:39:17,777 INFO L225 Difference]: With dead ends: 237367 [2018-07-24 00:39:17,777 INFO L226 Difference]: Without dead ends: 117867 [2018-07-24 00:39:17,837 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-07-24 00:39:17,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117867 states. [2018-07-24 00:39:19,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117867 to 115477. [2018-07-24 00:39:19,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115477 states. [2018-07-24 00:39:19,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115477 states to 115477 states and 132336 transitions. [2018-07-24 00:39:19,429 INFO L78 Accepts]: Start accepts. Automaton has 115477 states and 132336 transitions. Word has length 261 [2018-07-24 00:39:19,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:39:19,429 INFO L471 AbstractCegarLoop]: Abstraction has 115477 states and 132336 transitions. [2018-07-24 00:39:19,430 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 00:39:19,430 INFO L276 IsEmpty]: Start isEmpty. Operand 115477 states and 132336 transitions. [2018-07-24 00:39:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-07-24 00:39:19,443 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:39:19,443 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:39:19,443 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:39:19,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1669685934, now seen corresponding path program 1 times [2018-07-24 00:39:19,444 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:39:19,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:39:19,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:19,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:19,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:19,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:19,858 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-07-24 00:39:19,859 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:39:19,859 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:39:19,860 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:39:19,860 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:39:19,860 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:39:19,860 INFO L87 Difference]: Start difference. First operand 115477 states and 132336 transitions. Second operand 5 states. [2018-07-24 00:39:37,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:39:37,193 INFO L93 Difference]: Finished difference Result 249173 states and 285281 transitions. [2018-07-24 00:39:37,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:39:37,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 353 [2018-07-24 00:39:37,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:39:37,434 INFO L225 Difference]: With dead ends: 249173 [2018-07-24 00:39:37,435 INFO L226 Difference]: Without dead ends: 133698 [2018-07-24 00:39:37,511 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:39:37,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133698 states. [2018-07-24 00:39:38,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133698 to 129681. [2018-07-24 00:39:38,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129681 states. [2018-07-24 00:39:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129681 states to 129681 states and 147864 transitions. [2018-07-24 00:39:38,597 INFO L78 Accepts]: Start accepts. Automaton has 129681 states and 147864 transitions. Word has length 353 [2018-07-24 00:39:38,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:39:38,598 INFO L471 AbstractCegarLoop]: Abstraction has 129681 states and 147864 transitions. [2018-07-24 00:39:38,598 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:39:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 129681 states and 147864 transitions. [2018-07-24 00:39:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-07-24 00:39:38,612 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:39:38,612 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:39:38,613 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:39:38,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1539229284, now seen corresponding path program 1 times [2018-07-24 00:39:38,613 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:39:38,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:39:38,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:38,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:39:38,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:39:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:39:38,913 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 274 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-07-24 00:39:38,913 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:39:38,913 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:39:38,914 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 00:39:38,914 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 00:39:38,914 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:39:38,914 INFO L87 Difference]: Start difference. First operand 129681 states and 147864 transitions. Second operand 5 states. [2018-07-24 00:40:01,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:40:01,190 INFO L93 Difference]: Finished difference Result 348698 states and 397926 transitions. [2018-07-24 00:40:01,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 00:40:01,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 360 [2018-07-24 00:40:01,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:40:01,497 INFO L225 Difference]: With dead ends: 348698 [2018-07-24 00:40:01,498 INFO L226 Difference]: Without dead ends: 219807 [2018-07-24 00:40:02,421 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-07-24 00:40:02,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219807 states. [2018-07-24 00:40:04,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219807 to 218046. [2018-07-24 00:40:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218046 states. [2018-07-24 00:40:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218046 states to 218046 states and 245515 transitions. [2018-07-24 00:40:04,263 INFO L78 Accepts]: Start accepts. Automaton has 218046 states and 245515 transitions. Word has length 360 [2018-07-24 00:40:04,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:40:04,263 INFO L471 AbstractCegarLoop]: Abstraction has 218046 states and 245515 transitions. [2018-07-24 00:40:04,263 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 00:40:04,263 INFO L276 IsEmpty]: Start isEmpty. Operand 218046 states and 245515 transitions. [2018-07-24 00:40:04,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-07-24 00:40:04,281 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:40:04,282 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:40:04,282 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:40:04,282 INFO L82 PathProgramCache]: Analyzing trace with hash 497633425, now seen corresponding path program 1 times [2018-07-24 00:40:04,282 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:40:04,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:40:04,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:04,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:04,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:04,706 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 272 proven. 66 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-07-24 00:40:04,706 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 00:40:04,706 INFO L221 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 00:40:04,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:04,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 00:40:05,058 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 258 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-24 00:40:05,079 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-24 00:40:05,079 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-07-24 00:40:05,080 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 00:40:05,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 00:40:05,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-07-24 00:40:05,081 INFO L87 Difference]: Start difference. First operand 218046 states and 245515 transitions. Second operand 7 states. [2018-07-24 00:40:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 00:40:37,839 INFO L93 Difference]: Finished difference Result 474781 states and 534068 transitions. [2018-07-24 00:40:37,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 00:40:37,839 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 403 [2018-07-24 00:40:37,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 00:40:38,142 INFO L225 Difference]: With dead ends: 474781 [2018-07-24 00:40:38,143 INFO L226 Difference]: Without dead ends: 245675 [2018-07-24 00:40:38,245 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 410 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2018-07-24 00:40:38,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245675 states. [2018-07-24 00:40:41,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245675 to 219604. [2018-07-24 00:40:41,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219604 states. [2018-07-24 00:40:41,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219604 states to 219604 states and 236859 transitions. [2018-07-24 00:40:41,273 INFO L78 Accepts]: Start accepts. Automaton has 219604 states and 236859 transitions. Word has length 403 [2018-07-24 00:40:41,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 00:40:41,273 INFO L471 AbstractCegarLoop]: Abstraction has 219604 states and 236859 transitions. [2018-07-24 00:40:41,273 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 00:40:41,274 INFO L276 IsEmpty]: Start isEmpty. Operand 219604 states and 236859 transitions. [2018-07-24 00:40:41,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-07-24 00:40:41,283 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 00:40:41,284 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 00:40:41,284 INFO L414 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 00:40:41,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1637979636, now seen corresponding path program 1 times [2018-07-24 00:40:41,284 INFO L221 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-07-24 00:40:41,284 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-07-24 00:40:41,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:41,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 00:40:41,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 00:40:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 00:40:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-07-24 00:40:41,932 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 00:40:41,932 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 00:40:41,933 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 00:40:41,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 00:40:41,935 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 00:40:41,936 INFO L87 Difference]: Start difference. First operand 219604 states and 236859 transitions. Second operand 4 states. Received shutdown request... [2018-07-24 00:40:55,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 00:40:55,862 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 00:40:55,868 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 00:40:55,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:40:55 BoogieIcfgContainer [2018-07-24 00:40:55,868 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 00:40:55,869 INFO L168 Benchmark]: Toolchain (without parser) took 235998.06 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 617.0 MB. Max. memory is 7.1 GB. [2018-07-24 00:40:55,870 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-07-24 00:40:55,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2855.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-07-24 00:40:55,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 895.17 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 270.0 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -533.1 MB). Peak memory consumption was 212.2 MB. Max. memory is 7.1 GB. [2018-07-24 00:40:55,872 INFO L168 Benchmark]: Boogie Preprocessor took 1786.83 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 695.7 MB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -657.9 MB). Peak memory consumption was 125.9 MB. Max. memory is 7.1 GB. [2018-07-24 00:40:55,873 INFO L168 Benchmark]: RCFGBuilder took 13468.73 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 433.1 MB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -424.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 00:40:55,874 INFO L168 Benchmark]: TraceAbstraction took 216986.55 ms. Allocated memory was 2.9 GB in the beginning and 4.0 GB in the end (delta: 1.1 GB). Free memory was 2.7 GB in the beginning and 3.3 GB in the end (delta: -587.7 MB). Peak memory consumption was 494.4 MB. Max. memory is 7.1 GB. [2018-07-24 00:40:55,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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. * CACSL2BoogieTranslator took 2855.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 895.17 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 270.0 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -533.1 MB). Peak memory consumption was 212.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1786.83 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 695.7 MB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -657.9 MB). Peak memory consumption was 125.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13468.73 ms. Allocated memory was 2.5 GB in the beginning and 2.9 GB in the end (delta: 433.1 MB). Free memory was 2.3 GB in the beginning and 2.7 GB in the end (delta: -424.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 216986.55 ms. Allocated memory was 2.9 GB in the beginning and 4.0 GB in the end (delta: 1.1 GB). Free memory was 2.7 GB in the beginning and 3.3 GB in the end (delta: -587.7 MB). Peak memory consumption was 494.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 63]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 63). Cancelled while BasicCegarLoop was constructing difference of abstraction (219604states) and interpolant automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (376734 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 216.9s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 199.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9571 SDtfs, 37830 SDslu, 3354 SDs, 0 SdLazy, 70563 SolverSat, 16944 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 166.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 736 GetRequests, 687 SyntacticMatches, 7 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=219604occurred in iteration=10, 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: 11.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 55835 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 3153 NumberOfCodeBlocks, 3153 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3140 ConstructedInterpolants, 0 QuantifiedInterpolants, 2728686 SizeOfPredicates, 1 NumberOfNonLiveVariables, 881 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 2169/2300 InterpolantCoveringCapability, 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/Problem13_label19_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_00-40-55-894.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label19_false-unreach-call.c_svcomp-Reach-64bit-Automizer_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_00-40-55-894.csv Completed graceful shutdown