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/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:49:02,425 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:49:02,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:49:02,447 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:49:02,447 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:49:02,448 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:49:02,450 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:49:02,452 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:49:02,455 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:49:02,458 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:49:02,463 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:49:02,464 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:49:02,465 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:49:02,465 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:49:02,467 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:49:02,467 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:49:02,468 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:49:02,470 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:49:02,472 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:49:02,474 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:49:02,475 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:49:02,476 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:49:02,478 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:49:02,479 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:49:02,479 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:49:02,480 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:49:02,481 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:49:02,481 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:49:02,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:49:02,483 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:49:02,484 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:49:02,484 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:49:02,485 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:49:02,485 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:49:02,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:49:02,486 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:49:02,487 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 12:49:02,502 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:49:02,503 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:49:02,504 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:49:02,504 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:49:02,504 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:49:02,504 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:49:02,504 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:49:02,505 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:49:02,505 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:49:02,505 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:49:02,505 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:49:02,506 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:49:02,506 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:49:02,506 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:49:02,506 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:49:02,507 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:49:02,507 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:49:02,507 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:49:02,507 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:49:02,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:49:02,508 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:49:02,508 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:49:02,508 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:49:02,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:49:02,509 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:49:02,509 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:49:02,509 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:49:02,509 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:49:02,509 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:49:02,510 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:49:02,510 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:49:02,510 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:49:02,510 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:49:02,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:49:02,576 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:49:02,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:49:02,582 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:49:02,582 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:49:02,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label17_true-unreach-call.c [2018-07-24 12:49:02,936 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158046179/e8e9425ccae940ab85061b8c8d7c4ce3/FLAGd19d49589 [2018-07-24 12:49:03,288 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:49:03,289 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label17_true-unreach-call.c [2018-07-24 12:49:03,316 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158046179/e8e9425ccae940ab85061b8c8d7c4ce3/FLAGd19d49589 [2018-07-24 12:49:03,337 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/158046179/e8e9425ccae940ab85061b8c8d7c4ce3 [2018-07-24 12:49:03,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:49:03,353 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:49:03,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:49:03,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:49:03,361 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:49:03,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:49:03" (1/1) ... [2018-07-24 12:49:03,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47db165b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:03, skipping insertion in model container [2018-07-24 12:49:03,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:49:03" (1/1) ... [2018-07-24 12:49:03,590 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:49:04,107 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:49:04,133 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:49:04,384 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:49:04,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04 WrapperNode [2018-07-24 12:49:04,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:49:04,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:49:04,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:49:04,465 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:49:04,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:49:04,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:49:04,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:49:04,597 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:49:04,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (1/1) ... [2018-07-24 12:49:04,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:49:04,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:49:04,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:49:04,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:49:04,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (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 12:49:05,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:49:05,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:49:05,053 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 [2018-07-24 12:49:05,053 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 [2018-07-24 12:49:05,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:49:05,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:49:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:49:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:49:10,036 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:49:10,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:49:10 BoogieIcfgContainer [2018-07-24 12:49:10,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:49:10,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:49:10,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:49:10,050 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:49:10,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:49:03" (1/3) ... [2018-07-24 12:49:10,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3c50e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:49:10, skipping insertion in model container [2018-07-24 12:49:10,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:49:04" (2/3) ... [2018-07-24 12:49:10,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3c50e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:49:10, skipping insertion in model container [2018-07-24 12:49:10,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:49:10" (3/3) ... [2018-07-24 12:49:10,057 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label17_true-unreach-call.c [2018-07-24 12:49:10,071 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:49:10,086 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:49:10,165 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:49:10,166 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:49:10,166 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:49:10,166 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:49:10,166 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:49:10,166 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:49:10,167 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:49:10,167 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:49:10,167 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:49:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-07-24 12:49:10,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-07-24 12:49:10,242 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:10,243 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, 1, 1, 1] [2018-07-24 12:49:10,244 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]=== [2018-07-24 12:49:10,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1877378719, now seen corresponding path program 1 times [2018-07-24 12:49:10,253 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:10,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:10,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:10,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:10,312 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:11,578 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 12:49:11,580 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:49:11,581 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:49:11,581 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:49:11,588 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:49:11,604 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:49:11,605 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:49:11,608 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-07-24 12:49:15,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:15,583 INFO L93 Difference]: Finished difference Result 1057 states and 1905 transitions. [2018-07-24 12:49:15,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:49:15,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2018-07-24 12:49:15,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:15,613 INFO L225 Difference]: With dead ends: 1057 [2018-07-24 12:49:15,613 INFO L226 Difference]: Without dead ends: 739 [2018-07-24 12:49:15,621 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 [2018-07-24 12:49:15,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2018-07-24 12:49:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 528. [2018-07-24 12:49:15,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2018-07-24 12:49:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 879 transitions. [2018-07-24 12:49:15,714 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 879 transitions. Word has length 206 [2018-07-24 12:49:15,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:15,716 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 879 transitions. [2018-07-24 12:49:15,716 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:49:15,716 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 879 transitions. [2018-07-24 12:49:15,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-07-24 12:49:15,724 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:15,725 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:49:15,725 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]=== [2018-07-24 12:49:15,726 INFO L82 PathProgramCache]: Analyzing trace with hash 809544677, now seen corresponding path program 1 times [2018-07-24 12:49:15,726 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:15,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:15,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:15,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:15,728 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:15,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:16,186 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:49:16,186 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:49:16,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:49:16,188 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:49:16,189 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:49:16,189 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:49:16,189 INFO L87 Difference]: Start difference. First operand 528 states and 879 transitions. Second operand 3 states. [2018-07-24 12:49:18,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:18,283 INFO L93 Difference]: Finished difference Result 1474 states and 2530 transitions. [2018-07-24 12:49:18,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:49:18,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-07-24 12:49:18,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:18,293 INFO L225 Difference]: With dead ends: 1474 [2018-07-24 12:49:18,293 INFO L226 Difference]: Without dead ends: 952 [2018-07-24 12:49:18,301 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:49:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2018-07-24 12:49:18,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 951. [2018-07-24 12:49:18,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 951 states. [2018-07-24 12:49:18,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1506 transitions. [2018-07-24 12:49:18,355 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1506 transitions. Word has length 219 [2018-07-24 12:49:18,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:18,356 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1506 transitions. [2018-07-24 12:49:18,356 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:49:18,356 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1506 transitions. [2018-07-24 12:49:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-07-24 12:49:18,363 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:18,363 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:49:18,364 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]=== [2018-07-24 12:49:18,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1923560564, now seen corresponding path program 1 times [2018-07-24 12:49:18,364 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:18,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:18,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:18,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:18,366 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:18,657 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:18,657 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 12:49:18,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:18,673 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:18,955 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:19,198 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:19,198 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:19,659 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:19,660 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:49:19,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:19,676 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:20,205 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:20,589 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:20,590 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:20,803 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:49:20,803 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 14 [2018-07-24 12:49:20,803 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:49:20,804 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 12:49:20,804 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 12:49:20,805 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-07-24 12:49:20,805 INFO L87 Difference]: Start difference. First operand 951 states and 1506 transitions. Second operand 8 states. [2018-07-24 12:49:27,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:27,806 INFO L93 Difference]: Finished difference Result 3675 states and 6335 transitions. [2018-07-24 12:49:27,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 12:49:27,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 230 [2018-07-24 12:49:27,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:27,839 INFO L225 Difference]: With dead ends: 3675 [2018-07-24 12:49:27,839 INFO L226 Difference]: Without dead ends: 2730 [2018-07-24 12:49:27,850 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 913 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2018-07-24 12:49:27,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2018-07-24 12:49:27,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2661. [2018-07-24 12:49:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2661 states. [2018-07-24 12:49:28,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 3946 transitions. [2018-07-24 12:49:28,002 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 3946 transitions. Word has length 230 [2018-07-24 12:49:28,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:28,003 INFO L471 AbstractCegarLoop]: Abstraction has 2661 states and 3946 transitions. [2018-07-24 12:49:28,003 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 12:49:28,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 3946 transitions. [2018-07-24 12:49:28,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-07-24 12:49:28,020 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:28,021 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:28,021 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:49:28,022 INFO L82 PathProgramCache]: Analyzing trace with hash 746176118, now seen corresponding path program 1 times [2018-07-24 12:49:28,022 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:28,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:28,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:28,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:28,024 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:28,376 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:49:28,377 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:49:28,377 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:49:28,377 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:49:28,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:49:28,378 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:49:28,378 INFO L87 Difference]: Start difference. First operand 2661 states and 3946 transitions. Second operand 3 states. [2018-07-24 12:49:29,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:29,930 INFO L93 Difference]: Finished difference Result 7865 states and 12087 transitions. [2018-07-24 12:49:29,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:49:29,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2018-07-24 12:49:29,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:29,976 INFO L225 Difference]: With dead ends: 7865 [2018-07-24 12:49:29,976 INFO L226 Difference]: Without dead ends: 5210 [2018-07-24 12:49:29,995 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:49:30,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5210 states. [2018-07-24 12:49:30,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 5192. [2018-07-24 12:49:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5192 states. [2018-07-24 12:49:30,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 7751 transitions. [2018-07-24 12:49:30,183 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 7751 transitions. Word has length 239 [2018-07-24 12:49:30,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:30,184 INFO L471 AbstractCegarLoop]: Abstraction has 5192 states and 7751 transitions. [2018-07-24 12:49:30,184 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:49:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 7751 transitions. [2018-07-24 12:49:30,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-07-24 12:49:30,219 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:30,219 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:30,220 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:49:30,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1914171249, now seen corresponding path program 1 times [2018-07-24 12:49:30,220 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:30,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:30,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:30,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:30,222 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:30,665 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:30,665 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:30,665 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:49:30,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:30,674 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:30,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 42 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 12:49:31,304 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 12:49:31,846 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:49:31,847 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 12:49:31,847 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:49:31,847 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:49:31,848 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:49:31,848 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:49:31,848 INFO L87 Difference]: Start difference. First operand 5192 states and 7751 transitions. Second operand 5 states. [2018-07-24 12:49:33,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:33,570 INFO L93 Difference]: Finished difference Result 10877 states and 16315 transitions. [2018-07-24 12:49:33,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 12:49:33,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 253 [2018-07-24 12:49:33,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:33,607 INFO L225 Difference]: With dead ends: 10877 [2018-07-24 12:49:33,608 INFO L226 Difference]: Without dead ends: 5691 [2018-07-24 12:49:33,631 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 498 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-07-24 12:49:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2018-07-24 12:49:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5538. [2018-07-24 12:49:33,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5538 states. [2018-07-24 12:49:33,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 7651 transitions. [2018-07-24 12:49:33,773 INFO L78 Accepts]: Start accepts. Automaton has 5538 states and 7651 transitions. Word has length 253 [2018-07-24 12:49:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:33,773 INFO L471 AbstractCegarLoop]: Abstraction has 5538 states and 7651 transitions. [2018-07-24 12:49:33,773 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:49:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5538 states and 7651 transitions. [2018-07-24 12:49:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-07-24 12:49:33,801 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:33,801 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, 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] [2018-07-24 12:49:33,801 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:49:33,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1674958284, now seen corresponding path program 1 times [2018-07-24 12:49:33,802 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:33,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:33,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:33,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:33,803 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 87 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 12:49:34,300 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:34,300 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:49:34,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:34,310 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:34,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 74 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 12:49:34,781 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 12:49:35,479 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:35,479 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:49:35,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:35,505 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:36,152 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 74 proven. 30 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 12:49:36,600 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 102 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 12:49:37,348 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:49:37,349 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4, 4, 4] total 13 [2018-07-24 12:49:37,349 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:49:37,350 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 12:49:37,350 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 12:49:37,350 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:49:37,351 INFO L87 Difference]: Start difference. First operand 5538 states and 7651 transitions. Second operand 8 states. [2018-07-24 12:49:40,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:40,408 INFO L93 Difference]: Finished difference Result 15957 states and 23114 transitions. [2018-07-24 12:49:40,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:49:40,411 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 281 [2018-07-24 12:49:40,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:40,476 INFO L225 Difference]: With dead ends: 15957 [2018-07-24 12:49:40,479 INFO L226 Difference]: Without dead ends: 10425 [2018-07-24 12:49:40,507 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1138 GetRequests, 1118 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2018-07-24 12:49:40,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10425 states. [2018-07-24 12:49:40,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10425 to 10316. [2018-07-24 12:49:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10316 states. [2018-07-24 12:49:40,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10316 states to 10316 states and 13536 transitions. [2018-07-24 12:49:40,785 INFO L78 Accepts]: Start accepts. Automaton has 10316 states and 13536 transitions. Word has length 281 [2018-07-24 12:49:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:40,785 INFO L471 AbstractCegarLoop]: Abstraction has 10316 states and 13536 transitions. [2018-07-24 12:49:40,785 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 12:49:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10316 states and 13536 transitions. [2018-07-24 12:49:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-07-24 12:49:40,821 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:40,822 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:40,822 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:49:40,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1208828973, now seen corresponding path program 1 times [2018-07-24 12:49:40,822 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:40,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:40,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:40,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:40,824 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:41,226 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:49:41,226 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:49:41,226 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:49:41,226 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:49:41,227 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:49:41,227 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:49:41,227 INFO L87 Difference]: Start difference. First operand 10316 states and 13536 transitions. Second operand 3 states. [2018-07-24 12:49:45,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:45,756 INFO L93 Difference]: Finished difference Result 29273 states and 38957 transitions. [2018-07-24 12:49:45,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:49:45,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 285 [2018-07-24 12:49:45,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:45,831 INFO L225 Difference]: With dead ends: 29273 [2018-07-24 12:49:45,831 INFO L226 Difference]: Without dead ends: 18963 [2018-07-24 12:49:45,865 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 12:49:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18963 states. [2018-07-24 12:49:46,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18963 to 18957. [2018-07-24 12:49:46,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18957 states. [2018-07-24 12:49:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18957 states to 18957 states and 24303 transitions. [2018-07-24 12:49:46,297 INFO L78 Accepts]: Start accepts. Automaton has 18957 states and 24303 transitions. Word has length 285 [2018-07-24 12:49:46,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:46,298 INFO L471 AbstractCegarLoop]: Abstraction has 18957 states and 24303 transitions. [2018-07-24 12:49:46,298 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:49:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 18957 states and 24303 transitions. [2018-07-24 12:49:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-07-24 12:49:46,353 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:46,353 INFO L353 BasicCegarLoop]: trace histogram [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, 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] [2018-07-24 12:49:46,354 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:49:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash 318095164, now seen corresponding path program 1 times [2018-07-24 12:49:46,354 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:46,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:46,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:46,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:46,355 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:46,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 12:49:46,749 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:46,749 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:49:46,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:46,762 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:47,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 12:49:47,095 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:47,259 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 12:49:47,280 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:47,280 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:49:47,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:47,296 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:47,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 78 proven. 46 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 12:49:47,984 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-07-24 12:49:48,161 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:49:48,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 7, 5] total 9 [2018-07-24 12:49:48,162 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:49:48,163 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:49:48,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:49:48,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:49:48,163 INFO L87 Difference]: Start difference. First operand 18957 states and 24303 transitions. Second operand 6 states. [2018-07-24 12:49:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:49:52,038 INFO L93 Difference]: Finished difference Result 41041 states and 54830 transitions. [2018-07-24 12:49:52,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:49:52,038 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 289 [2018-07-24 12:49:52,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:49:52,130 INFO L225 Difference]: With dead ends: 41041 [2018-07-24 12:49:52,131 INFO L226 Difference]: Without dead ends: 22090 [2018-07-24 12:49:52,176 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1166 GetRequests, 1150 SyntacticMatches, 6 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:49:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22090 states. [2018-07-24 12:49:52,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22090 to 21670. [2018-07-24 12:49:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21670 states. [2018-07-24 12:49:52,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21670 states to 21670 states and 26369 transitions. [2018-07-24 12:49:52,689 INFO L78 Accepts]: Start accepts. Automaton has 21670 states and 26369 transitions. Word has length 289 [2018-07-24 12:49:52,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:49:52,690 INFO L471 AbstractCegarLoop]: Abstraction has 21670 states and 26369 transitions. [2018-07-24 12:49:52,690 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:49:52,690 INFO L276 IsEmpty]: Start isEmpty. Operand 21670 states and 26369 transitions. [2018-07-24 12:49:52,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-07-24 12:49:52,733 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:49:52,733 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:52,733 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:49:52,734 INFO L82 PathProgramCache]: Analyzing trace with hash -603007656, now seen corresponding path program 1 times [2018-07-24 12:49:52,734 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:49:52,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:52,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:52,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:49:52,735 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:49:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:53,405 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 12:49:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 163 proven. 34 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 12:49:53,731 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:53,732 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:49:53,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:53,742 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:54,050 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:54,179 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 12:49:54,179 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 12:49:54,517 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:49:54,518 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:49:54,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:49:54,536 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:49:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:49:55,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:49:55,585 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 173 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:49:55,585 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:49:55,749 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-07-24 12:49:55,752 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:49:55,753 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 6, 5] total 12 [2018-07-24 12:49:55,753 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:49:55,754 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:49:55,754 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:49:55,754 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:49:55,754 INFO L87 Difference]: Start difference. First operand 21670 states and 26369 transitions. Second operand 9 states. [2018-07-24 12:50:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:50:07,539 INFO L93 Difference]: Finished difference Result 90644 states and 125900 transitions. [2018-07-24 12:50:07,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-07-24 12:50:07,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 353 [2018-07-24 12:50:07,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:50:07,975 INFO L225 Difference]: With dead ends: 90644 [2018-07-24 12:50:07,976 INFO L226 Difference]: Without dead ends: 70656 [2018-07-24 12:50:08,083 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1436 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=359, Invalid=1447, Unknown=0, NotChecked=0, Total=1806 [2018-07-24 12:50:08,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70656 states. [2018-07-24 12:50:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70656 to 67477. [2018-07-24 12:50:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67477 states. [2018-07-24 12:50:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67477 states to 67477 states and 81405 transitions. [2018-07-24 12:50:10,586 INFO L78 Accepts]: Start accepts. Automaton has 67477 states and 81405 transitions. Word has length 353 [2018-07-24 12:50:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:50:10,587 INFO L471 AbstractCegarLoop]: Abstraction has 67477 states and 81405 transitions. [2018-07-24 12:50:10,587 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:50:10,587 INFO L276 IsEmpty]: Start isEmpty. Operand 67477 states and 81405 transitions. [2018-07-24 12:50:10,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-07-24 12:50:10,701 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:50:10,701 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-07-24 12:50:10,701 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:50:10,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1695711753, now seen corresponding path program 1 times [2018-07-24 12:50:10,702 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:50:10,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:10,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:10,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:10,703 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:50:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:11,531 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 212 proven. 34 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-07-24 12:50:11,531 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:50:11,532 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:50:11,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:11,542 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:50:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:11,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:50:12,035 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 212 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 12:50:12,035 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:50:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 12:50:12,295 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:50:12,296 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:50:12,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:12,312 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:50:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:13,085 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:50:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 212 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 12:50:13,381 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:50:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 12:50:14,025 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:50:14,025 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4, 4, 4] total 13 [2018-07-24 12:50:14,025 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:50:14,026 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-24 12:50:14,027 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-24 12:50:14,027 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:50:14,027 INFO L87 Difference]: Start difference. First operand 67477 states and 81405 transitions. Second operand 8 states. [2018-07-24 12:50:20,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:50:20,851 INFO L93 Difference]: Finished difference Result 137469 states and 178322 transitions. [2018-07-24 12:50:20,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-07-24 12:50:20,852 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 404 [2018-07-24 12:50:20,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:50:21,208 INFO L225 Difference]: With dead ends: 137469 [2018-07-24 12:50:21,208 INFO L226 Difference]: Without dead ends: 71168 [2018-07-24 12:50:21,377 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1668 GetRequests, 1630 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=296, Invalid=1036, Unknown=0, NotChecked=0, Total=1332 [2018-07-24 12:50:21,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71168 states. [2018-07-24 12:50:23,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71168 to 67229. [2018-07-24 12:50:23,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67229 states. [2018-07-24 12:50:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67229 states to 67229 states and 78116 transitions. [2018-07-24 12:50:23,675 INFO L78 Accepts]: Start accepts. Automaton has 67229 states and 78116 transitions. Word has length 404 [2018-07-24 12:50:23,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:50:23,676 INFO L471 AbstractCegarLoop]: Abstraction has 67229 states and 78116 transitions. [2018-07-24 12:50:23,676 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-24 12:50:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 67229 states and 78116 transitions. [2018-07-24 12:50:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2018-07-24 12:50:23,796 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:50:23,796 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:23,797 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:50:23,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1781737315, now seen corresponding path program 1 times [2018-07-24 12:50:23,797 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:50:23,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:23,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:23,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:23,798 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:50:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:24,320 WARN L169 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:50:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 400 proven. 256 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-07-24 12:50:24,717 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:50:24,717 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:50:24,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:24,726 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:50:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:25,212 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:50:25,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2018-07-24 12:50:25,450 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:50:25,631 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2018-07-24 12:50:26,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 400 proven. 256 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-07-24 12:50:26,534 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:50:26,535 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-07-24 12:50:26,535 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:50:26,536 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:50:26,536 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:50:26,536 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:50:26,536 INFO L87 Difference]: Start difference. First operand 67229 states and 78116 transitions. Second operand 6 states. [2018-07-24 12:50:29,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:50:29,543 INFO L93 Difference]: Finished difference Result 131637 states and 155786 transitions. [2018-07-24 12:50:29,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 12:50:29,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 628 [2018-07-24 12:50:29,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:50:29,790 INFO L225 Difference]: With dead ends: 131637 [2018-07-24 12:50:29,790 INFO L226 Difference]: Without dead ends: 68888 [2018-07-24 12:50:29,922 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 1248 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-07-24 12:50:29,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68888 states. [2018-07-24 12:50:31,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68888 to 67328. [2018-07-24 12:50:31,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67328 states. [2018-07-24 12:50:31,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67328 states to 67328 states and 78033 transitions. [2018-07-24 12:50:31,798 INFO L78 Accepts]: Start accepts. Automaton has 67328 states and 78033 transitions. Word has length 628 [2018-07-24 12:50:31,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:50:31,798 INFO L471 AbstractCegarLoop]: Abstraction has 67328 states and 78033 transitions. [2018-07-24 12:50:31,798 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:50:31,798 INFO L276 IsEmpty]: Start isEmpty. Operand 67328 states and 78033 transitions. [2018-07-24 12:50:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2018-07-24 12:50:31,932 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:50:31,932 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:31,932 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:50:31,933 INFO L82 PathProgramCache]: Analyzing trace with hash 97156801, now seen corresponding path program 1 times [2018-07-24 12:50:31,933 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:50:31,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:31,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:31,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:31,935 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:50:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:33,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 509 proven. 195 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-07-24 12:50:33,558 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:50:33,559 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:50:33,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:33,567 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:50:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:34,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:50:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 681 proven. 4 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2018-07-24 12:50:34,526 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:50:35,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 459 proven. 425 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-07-24 12:50:35,089 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:50:35,089 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:50:35,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:35,105 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:50:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:36,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:50:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 681 proven. 4 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2018-07-24 12:50:36,544 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:50:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 459 proven. 425 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-07-24 12:50:37,439 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:50:37,439 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-07-24 12:50:37,439 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:50:37,441 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:50:37,441 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:50:37,441 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-07-24 12:50:37,441 INFO L87 Difference]: Start difference. First operand 67328 states and 78033 transitions. Second operand 9 states. [2018-07-24 12:50:46,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:50:46,762 INFO L93 Difference]: Finished difference Result 312810 states and 397713 transitions. [2018-07-24 12:50:46,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-07-24 12:50:46,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 649 [2018-07-24 12:50:46,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:50:47,972 INFO L225 Difference]: With dead ends: 312810 [2018-07-24 12:50:47,973 INFO L226 Difference]: Without dead ends: 250086 [2018-07-24 12:50:48,208 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2651 GetRequests, 2604 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=353, Invalid=1369, Unknown=0, NotChecked=0, Total=1722 [2018-07-24 12:50:48,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250086 states. [2018-07-24 12:50:54,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250086 to 238963. [2018-07-24 12:50:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238963 states. [2018-07-24 12:50:54,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238963 states to 238963 states and 274199 transitions. [2018-07-24 12:50:54,850 INFO L78 Accepts]: Start accepts. Automaton has 238963 states and 274199 transitions. Word has length 649 [2018-07-24 12:50:54,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:50:54,851 INFO L471 AbstractCegarLoop]: Abstraction has 238963 states and 274199 transitions. [2018-07-24 12:50:54,851 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 12:50:54,851 INFO L276 IsEmpty]: Start isEmpty. Operand 238963 states and 274199 transitions. [2018-07-24 12:50:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2018-07-24 12:50:55,299 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:50:55,299 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:50:55,299 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:50:55,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1975198502, now seen corresponding path program 1 times [2018-07-24 12:50:55,300 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:50:55,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:55,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:55,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:50:55,301 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:50:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 636 proven. 332 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-07-24 12:50:57,152 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:50:57,152 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:50:57,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:57,160 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:50:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:57,671 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:50:58,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 933 proven. 6 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2018-07-24 12:50:58,075 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:50:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 641 proven. 334 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2018-07-24 12:50:58,708 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:50:58,708 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:50:58,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:50:58,726 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:50:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:50:59,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:51:04,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 902 proven. 4 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2018-07-24 12:51:04,086 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:51:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 516 proven. 589 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2018-07-24 12:51:04,875 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:51:04,876 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8, 8, 8] total 14 [2018-07-24 12:51:04,876 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:51:04,877 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 12:51:04,879 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 12:51:04,879 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-07-24 12:51:04,879 INFO L87 Difference]: Start difference. First operand 238963 states and 274199 transitions. Second operand 11 states. [2018-07-24 12:51:06,019 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-07-24 12:51:20,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:51:20,494 INFO L93 Difference]: Finished difference Result 630609 states and 759485 transitions. [2018-07-24 12:51:20,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-07-24 12:51:20,494 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 698 [2018-07-24 12:51:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:51:20,495 INFO L225 Difference]: With dead ends: 630609 [2018-07-24 12:51:20,495 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 12:51:21,329 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2827 GetRequests, 2801 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=219, Invalid=537, Unknown=0, NotChecked=0, Total=756 [2018-07-24 12:51:21,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 12:51:21,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 12:51:21,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 12:51:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 12:51:21,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 698 [2018-07-24 12:51:21,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:51:21,335 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 12:51:21,336 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 12:51:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 12:51:21,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 12:51:21,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 12:51:27,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,121 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:27,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:28,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:29,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:29,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:29,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:29,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:29,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:29,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,140 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,150 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,491 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:30,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:31,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:31,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:31,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:31,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:31,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:31,700 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:31,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,691 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:32,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:33,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:33,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:33,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:34,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:34,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:34,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:34,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:35,862 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:35,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:36,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:36,930 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:37,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:38,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:38,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:38,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:38,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:39,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:39,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:39,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:39,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:39,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:39,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:39,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:40,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:41,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:41,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:41,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:41,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:41,200 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:41,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:41,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,506 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:42,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:43,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:43,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:43,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:43,935 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,544 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:44,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:45,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:46,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:46,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:46,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:46,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:46,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:47,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:47,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:47,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:47,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:47,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:47,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:48,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:48,078 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:48,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:50,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:51,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:52,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:53,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:53,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:53,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:53,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:53,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:53,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:55,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:55,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:55,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:55,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:55,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:55,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:55,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:56,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:56,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:57,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:57,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:57,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:57,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:57,707 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:58,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:58,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:51:58,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:06,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:06,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:08,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:09,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:10,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:10,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:13,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:16,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:18,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:18,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:18,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:18,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:18,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:19,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:19,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:19,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:19,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:23,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:23,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:23,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:23,996 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:25,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:25,805 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:26,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:29,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:29,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:31,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:31,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:31,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:32,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:32,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:38,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:38,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:39,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:39,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:39,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:42,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 12:52:42,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-07-24 12:52:43,459 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-24 12:52:43,460 INFO L168 Benchmark]: Toolchain (without parser) took 220108.24 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -506.1 MB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2018-07-24 12:52:43,461 INFO L168 Benchmark]: CDTParser took 0.25 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 12:52:43,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1109.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-07-24 12:52:43,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-24 12:52:43,463 INFO L168 Benchmark]: Boogie Preprocessor took 384.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 820.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -954.8 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-07-24 12:52:43,464 INFO L168 Benchmark]: RCFGBuilder took 5060.32 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 286.5 MB). Peak memory consumption was 286.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:52:43,465 INFO L168 Benchmark]: TraceAbstraction took 213416.76 ms. Allocated memory was 2.4 GB in the beginning and 5.1 GB in the end (delta: 2.7 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 56.5 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-07-24 12:52:43,470 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 1109.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 132.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 384.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 820.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -954.8 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5060.32 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 286.5 MB). Peak memory consumption was 286.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213416.76 ms. Allocated memory was 2.4 GB in the beginning and 5.1 GB in the end (delta: 2.7 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 56.5 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1632]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 10627. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem03_label17_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-52-43-483.csv Completed graceful shutdown