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/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 20:40:15,899 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 20:40:15,901 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 20:40:15,918 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 20:40:15,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 20:40:15,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 20:40:15,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 20:40:15,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 20:40:15,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 20:40:15,925 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 20:40:15,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 20:40:15,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 20:40:15,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 20:40:15,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 20:40:15,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 20:40:15,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 20:40:15,931 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 20:40:15,933 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 20:40:15,935 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 20:40:15,936 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 20:40:15,938 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 20:40:15,939 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 20:40:15,941 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 20:40:15,942 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 20:40:15,942 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 20:40:15,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 20:40:15,944 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 20:40:15,945 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 20:40:15,945 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 20:40:15,947 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 20:40:15,947 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 20:40:15,948 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 20:40:15,948 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 20:40:15,948 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 20:40:15,949 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 20:40:15,950 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 20:40:15,950 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 20:40:15,976 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 20:40:15,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 20:40:15,978 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 20:40:15,978 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 20:40:15,978 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 20:40:15,979 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 20:40:15,979 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 20:40:15,979 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 20:40:15,979 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 20:40:15,979 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 20:40:15,980 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 20:40:15,980 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 20:40:15,981 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 20:40:15,981 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 20:40:15,981 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 20:40:15,981 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 20:40:15,981 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 20:40:15,982 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 20:40:15,982 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 20:40:15,982 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 20:40:15,982 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 20:40:15,982 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 20:40:15,983 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 20:40:15,983 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 20:40:15,983 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 20:40:15,984 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 20:40:15,984 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 20:40:15,984 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 20:40:15,984 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 20:40:15,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 20:40:15,984 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 20:40:15,985 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 20:40:15,985 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 20:40:16,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 20:40:16,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 20:40:16,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 20:40:16,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 20:40:16,057 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 20:40:16,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label42_true-unreach-call.c [2018-07-23 20:40:16,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d505c998/3df367d677404c02b5bfce8e7134b21f/FLAGa39dad024 [2018-07-23 20:40:16,773 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 20:40:16,776 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label42_true-unreach-call.c [2018-07-23 20:40:16,810 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d505c998/3df367d677404c02b5bfce8e7134b21f/FLAGa39dad024 [2018-07-23 20:40:16,837 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d505c998/3df367d677404c02b5bfce8e7134b21f [2018-07-23 20:40:16,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 20:40:16,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 20:40:16,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 20:40:16,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 20:40:16,874 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 20:40:16,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:40:16" (1/1) ... [2018-07-23 20:40:16,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc96e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:16, skipping insertion in model container [2018-07-23 20:40:16,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 08:40:16" (1/1) ... [2018-07-23 20:40:17,150 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 20:40:17,668 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:40:17,688 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 20:40:17,979 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 20:40:18,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18 WrapperNode [2018-07-23 20:40:18,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 20:40:18,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 20:40:18,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 20:40:18,100 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 20:40:18,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 20:40:18,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 20:40:18,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 20:40:18,269 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 20:40:18,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,739 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (1/1) ... [2018-07-23 20:40:18,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 20:40:18,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 20:40:18,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 20:40:18,754 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 20:40:18,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (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 [2018-07-23 20:40:18,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 20:40:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 20:40:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 20:40:18,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-23 20:40:18,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 20:40:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 20:40:18,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 20:40:18,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 20:40:24,329 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 20:40:24,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:40:24 BoogieIcfgContainer [2018-07-23 20:40:24,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 20:40:24,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 20:40:24,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 20:40:24,349 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 20:40:24,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 08:40:16" (1/3) ... [2018-07-23 20:40:24,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d787cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:40:24, skipping insertion in model container [2018-07-23 20:40:24,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 08:40:18" (2/3) ... [2018-07-23 20:40:24,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d787cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 08:40:24, skipping insertion in model container [2018-07-23 20:40:24,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 08:40:24" (3/3) ... [2018-07-23 20:40:24,356 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label42_true-unreach-call.c [2018-07-23 20:40:24,371 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 20:40:24,390 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 20:40:24,468 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 20:40:24,469 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 20:40:24,469 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 20:40:24,469 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 20:40:24,470 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 20:40:24,470 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 20:40:24,470 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 20:40:24,470 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 20:40:24,471 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 20:40:24,517 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-07-23 20:40:24,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-07-23 20:40:24,552 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:40:24,556 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:40:24,557 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:40:24,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1722479500, now seen corresponding path program 1 times [2018-07-23 20:40:24,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:40:24,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:40:24,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:40:24,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:40:24,632 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:40:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:40:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:40:25,919 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:40:25,920 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 20:40:25,920 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:40:25,928 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 20:40:25,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 20:40:25,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:40:25,949 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-07-23 20:40:29,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:40:29,835 INFO L93 Difference]: Finished difference Result 1080 states and 1936 transitions. [2018-07-23 20:40:29,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 20:40:29,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2018-07-23 20:40:29,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:40:29,864 INFO L225 Difference]: With dead ends: 1080 [2018-07-23 20:40:29,865 INFO L226 Difference]: Without dead ends: 762 [2018-07-23 20:40:29,874 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-23 20:40:29,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-07-23 20:40:29,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 520. [2018-07-23 20:40:29,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-07-23 20:40:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 919 transitions. [2018-07-23 20:40:29,977 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 919 transitions. Word has length 203 [2018-07-23 20:40:29,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:40:29,979 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 919 transitions. [2018-07-23 20:40:29,979 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 20:40:29,980 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 919 transitions. [2018-07-23 20:40:29,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-07-23 20:40:29,989 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:40:29,989 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:40:29,990 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:40:29,990 INFO L82 PathProgramCache]: Analyzing trace with hash 951455952, now seen corresponding path program 1 times [2018-07-23 20:40:29,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:40:29,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:40:29,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:40:29,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:40:29,992 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:40:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:40:30,324 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 20:40:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:40:30,438 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 20:40:30,439 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 20:40:30,439 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 20:40:30,441 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 20:40:30,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 20:40:30,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 20:40:30,442 INFO L87 Difference]: Start difference. First operand 520 states and 919 transitions. Second operand 6 states. [2018-07-23 20:40:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 20:40:34,518 INFO L93 Difference]: Finished difference Result 1604 states and 2923 transitions. [2018-07-23 20:40:34,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 20:40:34,527 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2018-07-23 20:40:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 20:40:34,538 INFO L225 Difference]: With dead ends: 1604 [2018-07-23 20:40:34,539 INFO L226 Difference]: Without dead ends: 1090 [2018-07-23 20:40:34,545 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 20:40:34,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2018-07-23 20:40:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1050. [2018-07-23 20:40:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1050 states. [2018-07-23 20:40:34,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1724 transitions. [2018-07-23 20:40:34,646 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1724 transitions. Word has length 220 [2018-07-23 20:40:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 20:40:34,646 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1724 transitions. [2018-07-23 20:40:34,647 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 20:40:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1724 transitions. [2018-07-23 20:40:34,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-07-23 20:40:34,654 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 20:40:34,655 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 20:40:34,655 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 20:40:34,656 INFO L82 PathProgramCache]: Analyzing trace with hash 947948628, now seen corresponding path program 1 times [2018-07-23 20:40:34,656 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 20:40:34,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:40:34,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 20:40:34,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 20:40:34,658 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 20:40:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 20:40:34,963 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-07-23 20:40:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 20:40:35,205 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 20:40:35,205 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 20:40:35,207 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-07-23 20:40:35,209 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [44], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1085], [1087], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-07-23 20:40:35,310 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 20:40:35,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown