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/Problem13_label33_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:19:50,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:19:50,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:19:50,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:19:50,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:19:50,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:19:50,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:19:50,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:19:50,410 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:19:50,411 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:19:50,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:19:50,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:19:50,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:19:50,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:19:50,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:19:50,421 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:19:50,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:19:50,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:19:50,434 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:19:50,439 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:19:50,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:19:50,444 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:19:50,446 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:19:50,449 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:19:50,449 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:19:50,450 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:19:50,451 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:19:50,452 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:19:50,453 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:19:50,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:19:50,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:19:50,457 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:19:50,457 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:19:50,457 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:19:50,458 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:19:50,459 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:19:50,461 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 14:19:50,480 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:19:50,480 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:19:50,482 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:19:50,482 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:19:50,485 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:19:50,485 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:19:50,485 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:19:50,486 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:19:50,486 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:19:50,486 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:19:50,486 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:19:50,488 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:19:50,488 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:19:50,489 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:19:50,489 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:19:50,489 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:19:50,489 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:19:50,489 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:19:50,490 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:19:50,490 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:19:50,490 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:19:50,491 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:19:50,492 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:19:50,492 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:19:50,492 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:19:50,492 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:19:50,492 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:19:50,493 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:19:50,493 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:19:50,493 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:19:50,493 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:19:50,494 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:19:50,494 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:19:50,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:19:50,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:19:50,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:19:50,580 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:19:50,580 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:19:50,581 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c [2018-07-24 14:19:50,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc80b3b4b/89d57b8caab141599ef858e965998038/FLAGaee389bf8 [2018-07-24 14:19:51,390 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:19:51,391 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label33_true-unreach-call.c [2018-07-24 14:19:51,442 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc80b3b4b/89d57b8caab141599ef858e965998038/FLAGaee389bf8 [2018-07-24 14:19:51,463 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc80b3b4b/89d57b8caab141599ef858e965998038 [2018-07-24 14:19:51,477 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:19:51,479 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:19:51,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:19:51,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:19:51,488 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:19:51,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:19:51" (1/1) ... [2018-07-24 14:19:51,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d65a7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:51, skipping insertion in model container [2018-07-24 14:19:51,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:19:51" (1/1) ... [2018-07-24 14:19:51,857 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:19:53,182 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:19:53,202 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:19:53,981 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:19:54,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54 WrapperNode [2018-07-24 14:19:54,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:19:54,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:19:54,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:19:54,336 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:19:54,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:54,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:54,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:19:54,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:19:54,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:19:54,632 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:19:55,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:55,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:55,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:55,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:55,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:55,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:55,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (1/1) ... [2018-07-24 14:19:55,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:19:55,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:19:55,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:19:55,869 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:19:55,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (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 14:19:55,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:19:55,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:19:55,953 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 14:19:55,953 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 14:19:55,953 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_output3 [2018-07-24 14:19:55,953 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_output3 [2018-07-24 14:19:55,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:19:55,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:19:55,954 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_output4 [2018-07-24 14:19:55,954 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_output4 [2018-07-24 14:19:55,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:19:55,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:19:55,954 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_output2 [2018-07-24 14:19:55,955 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_output2 [2018-07-24 14:20:10,530 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:20:10,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:20:10 BoogieIcfgContainer [2018-07-24 14:20:10,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:20:10,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:20:10,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:20:10,535 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:20:10,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:19:51" (1/3) ... [2018-07-24 14:20:10,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:20:10, skipping insertion in model container [2018-07-24 14:20:10,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:19:54" (2/3) ... [2018-07-24 14:20:10,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:20:10, skipping insertion in model container [2018-07-24 14:20:10,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:20:10" (3/3) ... [2018-07-24 14:20:10,542 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label33_true-unreach-call.c [2018-07-24 14:20:10,552 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:20:10,562 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:20:10,627 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:20:10,628 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:20:10,628 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:20:10,628 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:20:10,628 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:20:10,628 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:20:10,629 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:20:10,629 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:20:10,629 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:20:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 14:20:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-24 14:20:10,677 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:10,679 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] [2018-07-24 14:20:10,679 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 14:20:10,684 INFO L82 PathProgramCache]: Analyzing trace with hash 126251956, now seen corresponding path program 1 times [2018-07-24 14:20:10,687 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:10,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:10,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:10,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:10,737 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:11,184 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 14:20:11,188 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:20:11,188 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:20:11,189 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:11,195 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:20:11,212 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:20:11,213 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:20:11,216 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-07-24 14:20:30,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:30,221 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-07-24 14:20:30,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:20:30,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-07-24 14:20:30,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:30,279 INFO L225 Difference]: With dead ends: 4063 [2018-07-24 14:20:30,279 INFO L226 Difference]: Without dead ends: 2937 [2018-07-24 14:20:30,292 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:20:30,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-07-24 14:20:30,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-07-24 14:20:30,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-07-24 14:20:30,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-07-24 14:20:30,493 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 42 [2018-07-24 14:20:30,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:30,494 INFO L471 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-07-24 14:20:30,494 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:20:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-07-24 14:20:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-24 14:20:30,509 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:30,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:30,510 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 14:20:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1322744279, now seen corresponding path program 1 times [2018-07-24 14:20:30,510 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:30,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:30,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:30,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:30,513 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:30,904 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:30,905 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:20:30,905 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:20:30,905 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:30,907 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:20:30,908 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:20:30,908 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:20:30,908 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-07-24 14:20:48,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:48,314 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-07-24 14:20:48,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:20:48,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-07-24 14:20:48,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:48,353 INFO L225 Difference]: With dead ends: 7277 [2018-07-24 14:20:48,353 INFO L226 Difference]: Without dead ends: 5301 [2018-07-24 14:20:48,364 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:20:48,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-07-24 14:20:48,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-07-24 14:20:48,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-07-24 14:20:48,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-07-24 14:20:48,518 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 113 [2018-07-24 14:20:48,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:48,519 INFO L471 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-07-24 14:20:48,519 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:20:48,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-07-24 14:20:48,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-07-24 14:20:48,526 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:48,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:20:48,527 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 14:20:48,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1140459512, now seen corresponding path program 1 times [2018-07-24 14:20:48,528 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:48,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:48,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:48,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:48,530 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:48,863 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:20:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:49,039 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:20:49,039 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:20:49,039 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:49,040 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:20:49,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:20:49,041 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:20:49,041 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-07-24 14:21:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:03,321 INFO L93 Difference]: Finished difference Result 17106 states and 27851 transitions. [2018-07-24 14:21:03,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:21:03,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-07-24 14:21:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:03,378 INFO L225 Difference]: With dead ends: 17106 [2018-07-24 14:21:03,378 INFO L226 Difference]: Without dead ends: 11860 [2018-07-24 14:21:03,408 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:21:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11860 states. [2018-07-24 14:21:03,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11860 to 11797. [2018-07-24 14:21:03,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11797 states. [2018-07-24 14:21:03,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11797 states to 11797 states and 17115 transitions. [2018-07-24 14:21:03,680 INFO L78 Accepts]: Start accepts. Automaton has 11797 states and 17115 transitions. Word has length 116 [2018-07-24 14:21:03,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:03,681 INFO L471 AbstractCegarLoop]: Abstraction has 11797 states and 17115 transitions. [2018-07-24 14:21:03,681 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:21:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 11797 states and 17115 transitions. [2018-07-24 14:21:03,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-07-24 14:21:03,686 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:03,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:03,691 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 14:21:03,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1298757376, now seen corresponding path program 1 times [2018-07-24 14:21:03,692 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:03,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:03,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:03,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:03,693 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:03,976 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:21:03,976 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:21:03,976 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:21:03,976 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:03,977 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:21:03,978 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:21:03,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:21:03,979 INFO L87 Difference]: Start difference. First operand 11797 states and 17115 transitions. Second operand 6 states. [2018-07-24 14:21:19,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:19,704 INFO L93 Difference]: Finished difference Result 30506 states and 45619 transitions. [2018-07-24 14:21:19,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:21:19,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 120 [2018-07-24 14:21:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:19,771 INFO L225 Difference]: With dead ends: 30506 [2018-07-24 14:21:19,772 INFO L226 Difference]: Without dead ends: 18715 [2018-07-24 14:21:19,826 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:21:19,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18715 states. [2018-07-24 14:21:20,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18715 to 18585. [2018-07-24 14:21:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18585 states. [2018-07-24 14:21:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18585 states to 18585 states and 25982 transitions. [2018-07-24 14:21:20,181 INFO L78 Accepts]: Start accepts. Automaton has 18585 states and 25982 transitions. Word has length 120 [2018-07-24 14:21:20,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:20,182 INFO L471 AbstractCegarLoop]: Abstraction has 18585 states and 25982 transitions. [2018-07-24 14:21:20,182 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:21:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 18585 states and 25982 transitions. [2018-07-24 14:21:20,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-24 14:21:20,185 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:20,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:20,185 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 14:21:20,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1630600116, now seen corresponding path program 1 times [2018-07-24 14:21:20,186 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:20,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:20,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:20,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:20,188 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:20,450 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:21:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:21:20,794 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:21:20,794 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:21:20,795 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:20,795 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:21:20,795 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:21:20,796 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:21:20,796 INFO L87 Difference]: Start difference. First operand 18585 states and 25982 transitions. Second operand 6 states. [2018-07-24 14:21:35,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:35,196 INFO L93 Difference]: Finished difference Result 48054 states and 74550 transitions. [2018-07-24 14:21:35,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:21:35,197 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2018-07-24 14:21:35,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:35,318 INFO L225 Difference]: With dead ends: 48054 [2018-07-24 14:21:35,318 INFO L226 Difference]: Without dead ends: 29475 [2018-07-24 14:21:35,363 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:21:35,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29475 states. [2018-07-24 14:21:35,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29475 to 29321. [2018-07-24 14:21:35,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29321 states. [2018-07-24 14:21:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29321 states to 29321 states and 42060 transitions. [2018-07-24 14:21:36,016 INFO L78 Accepts]: Start accepts. Automaton has 29321 states and 42060 transitions. Word has length 126 [2018-07-24 14:21:36,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:36,017 INFO L471 AbstractCegarLoop]: Abstraction has 29321 states and 42060 transitions. [2018-07-24 14:21:36,017 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:21:36,017 INFO L276 IsEmpty]: Start isEmpty. Operand 29321 states and 42060 transitions. [2018-07-24 14:21:36,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-24 14:21:36,019 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:36,020 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:21:36,020 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 14:21:36,020 INFO L82 PathProgramCache]: Analyzing trace with hash -738774746, now seen corresponding path program 1 times [2018-07-24 14:21:36,020 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:36,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:36,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:36,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:36,024 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:21:36,265 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:21:36,266 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:21:36,266 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:36,266 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:21:36,267 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:21:36,267 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:21:36,268 INFO L87 Difference]: Start difference. First operand 29321 states and 42060 transitions. Second operand 4 states. [2018-07-24 14:21:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:21:49,043 INFO L93 Difference]: Finished difference Result 75326 states and 113916 transitions. [2018-07-24 14:21:49,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:21:49,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2018-07-24 14:21:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:21:49,197 INFO L225 Difference]: With dead ends: 75326 [2018-07-24 14:21:49,197 INFO L226 Difference]: Without dead ends: 46011 [2018-07-24 14:21:49,275 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:21:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46011 states. [2018-07-24 14:21:50,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46011 to 45967. [2018-07-24 14:21:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45967 states. [2018-07-24 14:21:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45967 states to 45967 states and 65670 transitions. [2018-07-24 14:21:50,447 INFO L78 Accepts]: Start accepts. Automaton has 45967 states and 65670 transitions. Word has length 143 [2018-07-24 14:21:50,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:21:50,447 INFO L471 AbstractCegarLoop]: Abstraction has 45967 states and 65670 transitions. [2018-07-24 14:21:50,447 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:21:50,448 INFO L276 IsEmpty]: Start isEmpty. Operand 45967 states and 65670 transitions. [2018-07-24 14:21:50,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-07-24 14:21:50,466 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:21:50,467 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:21:50,467 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 14:21:50,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1681230959, now seen corresponding path program 1 times [2018-07-24 14:21:50,467 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:21:50,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:50,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:50,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:21:50,469 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:21:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:50,989 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 70 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:21:50,990 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:21:50,990 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 14:21:51,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:21:51,013 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:21:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:21:51,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:21:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-24 14:21:51,365 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:21:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 70 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:21:51,672 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:21:51,672 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-07-24 14:21:51,672 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:21:51,673 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:21:51,673 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:21:51,673 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:21:51,673 INFO L87 Difference]: Start difference. First operand 45967 states and 65670 transitions. Second operand 5 states. [2018-07-24 14:22:07,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:22:07,496 INFO L93 Difference]: Finished difference Result 133157 states and 210658 transitions. [2018-07-24 14:22:07,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:22:07,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 227 [2018-07-24 14:22:07,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:22:07,997 INFO L225 Difference]: With dead ends: 133157 [2018-07-24 14:22:07,998 INFO L226 Difference]: Without dead ends: 87196 [2018-07-24 14:22:08,190 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 452 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:22:08,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87196 states. [2018-07-24 14:22:10,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87196 to 86932. [2018-07-24 14:22:10,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86932 states. [2018-07-24 14:22:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86932 states to 86932 states and 124561 transitions. [2018-07-24 14:22:10,503 INFO L78 Accepts]: Start accepts. Automaton has 86932 states and 124561 transitions. Word has length 227 [2018-07-24 14:22:10,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:22:10,504 INFO L471 AbstractCegarLoop]: Abstraction has 86932 states and 124561 transitions. [2018-07-24 14:22:10,504 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:22:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 86932 states and 124561 transitions. [2018-07-24 14:22:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-07-24 14:22:10,537 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:22:10,537 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:22:10,537 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 14:22:10,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2136631979, now seen corresponding path program 1 times [2018-07-24 14:22:10,538 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:22:10,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:10,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:10,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:10,539 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:22:10,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:10,888 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-07-24 14:22:10,931 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-07-24 14:22:10,932 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:22:10,932 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:22:11,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:11,702 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:22:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:11,834 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:22:12,020 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2018-07-24 14:22:12,021 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:22:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-07-24 14:22:12,308 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:22:12,308 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-07-24 14:22:12,308 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:22:12,309 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:22:12,309 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:22:12,309 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:22:12,310 INFO L87 Difference]: Start difference. First operand 86932 states and 124561 transitions. Second operand 3 states. [2018-07-24 14:22:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:22:21,683 INFO L93 Difference]: Finished difference Result 225112 states and 335222 transitions. [2018-07-24 14:22:21,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:22:21,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2018-07-24 14:22:21,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:22:22,230 INFO L225 Difference]: With dead ends: 225112 [2018-07-24 14:22:22,231 INFO L226 Difference]: Without dead ends: 138186 [2018-07-24 14:22:22,422 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 552 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 14:22:22,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138186 states. [2018-07-24 14:22:24,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138186 to 138172. [2018-07-24 14:22:24,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138172 states. [2018-07-24 14:22:24,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138172 states to 138172 states and 191267 transitions. [2018-07-24 14:22:24,986 INFO L78 Accepts]: Start accepts. Automaton has 138172 states and 191267 transitions. Word has length 276 [2018-07-24 14:22:24,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:22:24,986 INFO L471 AbstractCegarLoop]: Abstraction has 138172 states and 191267 transitions. [2018-07-24 14:22:24,987 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:22:24,987 INFO L276 IsEmpty]: Start isEmpty. Operand 138172 states and 191267 transitions. [2018-07-24 14:22:25,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-07-24 14:22:25,025 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:22:25,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:22:25,025 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 14:22:25,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2011291402, now seen corresponding path program 1 times [2018-07-24 14:22:25,026 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:22:25,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:25,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:25,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:25,027 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:22:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:25,383 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:22:25,926 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:22:25,927 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:22:25,927 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:22:25,927 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:22:25,928 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:22:25,928 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:22:25,928 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:22:25,928 INFO L87 Difference]: Start difference. First operand 138172 states and 191267 transitions. Second operand 6 states. [2018-07-24 14:22:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:22:36,441 INFO L93 Difference]: Finished difference Result 283795 states and 401160 transitions. [2018-07-24 14:22:36,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:22:36,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 289 [2018-07-24 14:22:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:22:36,924 INFO L225 Difference]: With dead ends: 283795 [2018-07-24 14:22:36,925 INFO L226 Difference]: Without dead ends: 140741 [2018-07-24 14:22:37,233 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:22:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140741 states. [2018-07-24 14:22:40,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140741 to 140411. [2018-07-24 14:22:40,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140411 states. [2018-07-24 14:22:40,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140411 states to 140411 states and 177747 transitions. [2018-07-24 14:22:40,444 INFO L78 Accepts]: Start accepts. Automaton has 140411 states and 177747 transitions. Word has length 289 [2018-07-24 14:22:40,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:22:40,444 INFO L471 AbstractCegarLoop]: Abstraction has 140411 states and 177747 transitions. [2018-07-24 14:22:40,444 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:22:40,444 INFO L276 IsEmpty]: Start isEmpty. Operand 140411 states and 177747 transitions. [2018-07-24 14:22:40,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-07-24 14:22:40,461 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:22:40,462 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:22:40,462 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 14:22:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1751698409, now seen corresponding path program 1 times [2018-07-24 14:22:40,462 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:22:40,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:40,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:40,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:40,463 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:22:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:40,732 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 151 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:22:40,732 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:22:40,733 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 14:22:40,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:40,742 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:22:40,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:40,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:22:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-07-24 14:22:42,389 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:22:42,756 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-07-24 14:22:42,789 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:22:42,789 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-07-24 14:22:42,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:22:42,790 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:22:42,790 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:22:42,790 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:22:42,791 INFO L87 Difference]: Start difference. First operand 140411 states and 177747 transitions. Second operand 3 states. [2018-07-24 14:22:50,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:22:50,789 INFO L93 Difference]: Finished difference Result 279214 states and 353951 transitions. [2018-07-24 14:22:50,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:22:50,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 305 [2018-07-24 14:22:50,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:22:51,105 INFO L225 Difference]: With dead ends: 279214 [2018-07-24 14:22:51,105 INFO L226 Difference]: Without dead ends: 138809 [2018-07-24 14:22:52,832 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 610 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:22:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138809 states. [2018-07-24 14:22:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138809 to 137191. [2018-07-24 14:22:55,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137191 states. [2018-07-24 14:22:55,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137191 states to 137191 states and 163240 transitions. [2018-07-24 14:22:55,656 INFO L78 Accepts]: Start accepts. Automaton has 137191 states and 163240 transitions. Word has length 305 [2018-07-24 14:22:55,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:22:55,657 INFO L471 AbstractCegarLoop]: Abstraction has 137191 states and 163240 transitions. [2018-07-24 14:22:55,657 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:22:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand 137191 states and 163240 transitions. [2018-07-24 14:22:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-07-24 14:22:55,678 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:22:55,679 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:22:55,679 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 14:22:55,679 INFO L82 PathProgramCache]: Analyzing trace with hash 950534114, now seen corresponding path program 1 times [2018-07-24 14:22:55,679 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:22:55,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:55,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:22:55,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:22:55,681 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:22:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:22:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 14:22:55,935 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:22:55,935 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:22:55,935 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:22:55,936 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:22:55,936 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:22:55,936 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:22:55,936 INFO L87 Difference]: Start difference. First operand 137191 states and 163240 transitions. Second operand 3 states. [2018-07-24 14:23:07,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:23:07,629 INFO L93 Difference]: Finished difference Result 274370 states and 326831 transitions. [2018-07-24 14:23:07,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:23:07,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 349 [2018-07-24 14:23:07,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:23:07,981 INFO L225 Difference]: With dead ends: 274370 [2018-07-24 14:23:07,981 INFO L226 Difference]: Without dead ends: 133987 [2018-07-24 14:23:08,493 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 14:23:08,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133987 states. [2018-07-24 14:23:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133987 to 132373. [2018-07-24 14:23:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132373 states. [2018-07-24 14:23:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132373 states to 132373 states and 149664 transitions. [2018-07-24 14:23:10,369 INFO L78 Accepts]: Start accepts. Automaton has 132373 states and 149664 transitions. Word has length 349 [2018-07-24 14:23:10,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:23:10,370 INFO L471 AbstractCegarLoop]: Abstraction has 132373 states and 149664 transitions. [2018-07-24 14:23:10,370 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:23:10,370 INFO L276 IsEmpty]: Start isEmpty. Operand 132373 states and 149664 transitions. [2018-07-24 14:23:10,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2018-07-24 14:23:10,391 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:23:10,392 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2018-07-24 14:23:10,392 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 14:23:10,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1177418103, now seen corresponding path program 1 times [2018-07-24 14:23:10,392 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:23:10,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:23:10,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:23:10,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:23:10,393 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:23:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:23:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 14:23:10,769 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:23:10,770 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:23:10,770 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:23:10,770 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:23:10,770 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:23:10,770 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:23:10,771 INFO L87 Difference]: Start difference. First operand 132373 states and 149664 transitions. Second operand 4 states. [2018-07-24 14:23:25,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:23:25,790 INFO L93 Difference]: Finished difference Result 317272 states and 369124 transitions. [2018-07-24 14:23:25,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:23:25,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 402 [2018-07-24 14:23:25,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:23:26,297 INFO L225 Difference]: With dead ends: 317272 [2018-07-24 14:23:26,298 INFO L226 Difference]: Without dead ends: 184095 [2018-07-24 14:23:26,460 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:23:26,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184095 states. [2018-07-24 14:23:28,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184095 to 178458. [2018-07-24 14:23:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178458 states. [2018-07-24 14:23:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178458 states to 178458 states and 205271 transitions. [2018-07-24 14:23:29,719 INFO L78 Accepts]: Start accepts. Automaton has 178458 states and 205271 transitions. Word has length 402 [2018-07-24 14:23:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:23:29,719 INFO L471 AbstractCegarLoop]: Abstraction has 178458 states and 205271 transitions. [2018-07-24 14:23:29,719 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:23:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 178458 states and 205271 transitions. [2018-07-24 14:23:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1028 [2018-07-24 14:23:29,977 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:23:29,977 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:23:29,977 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 14:23:29,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2067953221, now seen corresponding path program 1 times [2018-07-24 14:23:29,978 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:23:29,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:23:29,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:23:29,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:23:29,979 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:23:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:23:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2018-07-24 14:23:31,326 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:23:31,326 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 14:23:31,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:23:31,336 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:23:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:23:31,715 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:23:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2018-07-24 14:23:32,307 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:23:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2018-07-24 14:23:32,871 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:23:32,872 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 4 [2018-07-24 14:23:32,872 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:23:32,873 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:23:32,873 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:23:32,874 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:23:32,874 INFO L87 Difference]: Start difference. First operand 178458 states and 205271 transitions. Second operand 3 states. Received shutdown request... [2018-07-24 14:23:34,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:23:34,780 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:23:34,786 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:23:34,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:23:34 BoogieIcfgContainer [2018-07-24 14:23:34,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:23:34,788 INFO L168 Benchmark]: Toolchain (without parser) took 223309.63 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -630.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-24 14:23:34,789 INFO L168 Benchmark]: CDTParser took 0.23 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 14:23:34,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2855.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:34,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 295.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:34,792 INFO L168 Benchmark]: Boogie Preprocessor took 1236.46 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:34,793 INFO L168 Benchmark]: RCFGBuilder took 14662.11 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 162.0 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 86.2 MB). Peak memory consumption was 748.5 MB. Max. memory is 7.1 GB. [2018-07-24 14:23:34,794 INFO L168 Benchmark]: TraceAbstraction took 204255.32 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 223.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-24 14:23:34,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2855.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 295.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1236.46 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14662.11 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 162.0 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 86.2 MB). Peak memory consumption was 748.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204255.32 ms. Allocated memory was 2.7 GB in the beginning and 4.3 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 223.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 117). Cancelled while BasicCegarLoop was constructing difference of abstraction (178458states) and interpolant automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (19699 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 204.1s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 172.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9215 SDtfs, 35722 SDslu, 4426 SDs, 0 SdLazy, 57110 SolverSat, 15484 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 136.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3761 GetRequests, 3688 SyntacticMatches, 13 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178458occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 18.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 10872 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 5370 NumberOfCodeBlocks, 5370 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7184 ConstructedInterpolants, 0 QuantifiedInterpolants, 5899828 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2842 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 21 InterpolantComputations, 14 PerfectInterpolantSequences, 4014/4189 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label33_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-23-34-813.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label33_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-23-34-813.csv Completed graceful shutdown