java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:54:55,504 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:54:55,507 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:54:55,519 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:54:55,520 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:54:55,521 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:54:55,522 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:54:55,524 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:54:55,526 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:54:55,527 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:54:55,528 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:54:55,528 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:54:55,529 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:54:55,530 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:54:55,531 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:54:55,532 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:54:55,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:54:55,535 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:54:55,537 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:54:55,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:54:55,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:54:55,544 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:54:55,549 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:54:55,549 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:54:55,549 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:54:55,552 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:54:55,554 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:54:55,554 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:54:55,555 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:54:55,561 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:54:55,562 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:54:55,563 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:54:55,563 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:54:55,563 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:54:55,566 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:54:55,568 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:54:55,569 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 [2018-09-10 11:54:55,596 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:54:55,597 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:54:55,600 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:54:55,601 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:54:55,601 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:54:55,601 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:54:55,601 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:54:55,602 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:54:55,602 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:54:55,602 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:54:55,602 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:54:55,604 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:54:55,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:54:55,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:54:55,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:54:55,605 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:54:55,605 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:54:55,606 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:54:55,606 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:54:55,608 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:54:55,608 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:54:55,608 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:54:55,609 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:54:55,609 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:54:55,609 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:54:55,609 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:54:55,610 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:54:55,610 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:54:55,610 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:54:55,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:54:55,611 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:54:55,611 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:54:55,611 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:54:55,667 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:54:55,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:54:55,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:54:55,692 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:54:55,692 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:54:55,693 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-09-10 11:54:56,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227079c71/21a6f861c67e4ca98bae03cf0595bd53/FLAG9b49a6c41 [2018-09-10 11:54:56,552 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:54:56,553 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label22_true-unreach-call.c [2018-09-10 11:54:56,589 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227079c71/21a6f861c67e4ca98bae03cf0595bd53/FLAG9b49a6c41 [2018-09-10 11:54:56,606 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227079c71/21a6f861c67e4ca98bae03cf0595bd53 [2018-09-10 11:54:56,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:54:56,624 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:54:56,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:54:56,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:54:56,633 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:54:56,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:54:56" (1/1) ... [2018-09-10 11:54:56,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541f7e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:56, skipping insertion in model container [2018-09-10 11:54:56,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:54:56" (1/1) ... [2018-09-10 11:54:57,053 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:54:58,415 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:54:58,435 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:54:59,211 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:54:59,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59 WrapperNode [2018-09-10 11:54:59,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:54:59,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:54:59,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:54:59,589 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:54:59,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:54:59,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:54:59,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:54:59,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:54:59,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:54:59,952 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:55:00,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:55:00,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:55:00,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:55:00,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:55:01,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:55:01,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:55:01,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (1/1) ... [2018-09-10 11:55:01,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:55:01,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:55:01,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:55:01,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:55:01,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (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 [2018-09-10 11:55:01,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:55:01,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:55:01,311 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 [2018-09-10 11:55:01,311 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 [2018-09-10 11:55:01,311 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 [2018-09-10 11:55:01,311 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 [2018-09-10 11:55:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:55:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:55:01,312 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 [2018-09-10 11:55:01,312 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 [2018-09-10 11:55:01,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:55:01,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:55:01,313 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 [2018-09-10 11:55:01,313 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 [2018-09-10 11:55:12,692 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:55:12,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:55:12 BoogieIcfgContainer [2018-09-10 11:55:12,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:55:12,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:55:12,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:55:12,697 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:55:12,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:54:56" (1/3) ... [2018-09-10 11:55:12,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542f999d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:55:12, skipping insertion in model container [2018-09-10 11:55:12,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:54:59" (2/3) ... [2018-09-10 11:55:12,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542f999d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:55:12, skipping insertion in model container [2018-09-10 11:55:12,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:55:12" (3/3) ... [2018-09-10 11:55:12,701 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label22_true-unreach-call.c [2018-09-10 11:55:12,711 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:55:12,724 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:55:12,802 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:55:12,803 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:55:12,803 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:55:12,803 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:55:12,803 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:55:12,804 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:55:12,804 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:55:12,804 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:55:12,804 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:55:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-10 11:55:12,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-10 11:55:12,878 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:12,879 INFO L376 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] [2018-09-10 11:55:12,881 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:55:12,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1540748465, now seen corresponding path program 1 times [2018-09-10 11:55:12,889 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:12,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:12,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:12,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:12,947 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:13,376 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:55:13,376 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:55:13,376 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:13,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:55:13,399 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:55:13,399 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:55:13,402 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-09-10 11:55:30,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:30,157 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-09-10 11:55:30,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:55:30,170 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-09-10 11:55:30,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:30,214 INFO L225 Difference]: With dead ends: 4105 [2018-09-10 11:55:30,214 INFO L226 Difference]: Without dead ends: 2979 [2018-09-10 11:55:30,229 INFO L604 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 [2018-09-10 11:55:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-09-10 11:55:30,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-09-10 11:55:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-09-10 11:55:30,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-09-10 11:55:30,439 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 39 [2018-09-10 11:55:30,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:30,440 INFO L480 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-09-10 11:55:30,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:55:30,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-09-10 11:55:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-09-10 11:55:30,450 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:30,450 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:55:30,451 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:55:30,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1284679823, now seen corresponding path program 1 times [2018-09-10 11:55:30,452 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:30,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:30,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:30,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:30,456 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:30,830 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:30,830 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:55:30,831 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:55:30,831 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:30,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:55:30,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:55:30,833 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:55:30,834 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-09-10 11:55:48,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:48,601 INFO L93 Difference]: Finished difference Result 10635 states and 19580 transitions. [2018-09-10 11:55:48,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:55:48,602 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 110 [2018-09-10 11:55:48,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:48,648 INFO L225 Difference]: With dead ends: 10635 [2018-09-10 11:55:48,649 INFO L226 Difference]: Without dead ends: 7792 [2018-09-10 11:55:48,668 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:55:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2018-09-10 11:55:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 7729. [2018-09-10 11:55:48,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7729 states. [2018-09-10 11:55:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7729 states to 7729 states and 12373 transitions. [2018-09-10 11:55:48,874 INFO L78 Accepts]: Start accepts. Automaton has 7729 states and 12373 transitions. Word has length 110 [2018-09-10 11:55:48,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:48,875 INFO L480 AbstractCegarLoop]: Abstraction has 7729 states and 12373 transitions. [2018-09-10 11:55:48,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:55:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 7729 states and 12373 transitions. [2018-09-10 11:55:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-09-10 11:55:48,879 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:48,880 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:55:48,880 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:55:48,880 INFO L82 PathProgramCache]: Analyzing trace with hash 653214236, now seen corresponding path program 1 times [2018-09-10 11:55:48,881 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:48,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:48,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:48,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:48,882 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:49,122 WARN L175 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:55:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:49,235 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:55:49,235 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:55:49,235 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:49,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:55:49,236 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:55:49,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:55:49,236 INFO L87 Difference]: Start difference. First operand 7729 states and 12373 transitions. Second operand 6 states. [2018-09-10 11:56:04,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:56:04,102 INFO L93 Difference]: Finished difference Result 25316 states and 42417 transitions. [2018-09-10 11:56:04,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:56:04,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-09-10 11:56:04,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:56:04,196 INFO L225 Difference]: With dead ends: 25316 [2018-09-10 11:56:04,196 INFO L226 Difference]: Without dead ends: 17593 [2018-09-10 11:56:04,255 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:56:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17593 states. [2018-09-10 11:56:04,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17593 to 17518. [2018-09-10 11:56:04,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17518 states. [2018-09-10 11:56:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17518 states to 17518 states and 26075 transitions. [2018-09-10 11:56:04,701 INFO L78 Accepts]: Start accepts. Automaton has 17518 states and 26075 transitions. Word has length 113 [2018-09-10 11:56:04,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:56:04,702 INFO L480 AbstractCegarLoop]: Abstraction has 17518 states and 26075 transitions. [2018-09-10 11:56:04,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:56:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 17518 states and 26075 transitions. [2018-09-10 11:56:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-09-10 11:56:04,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:56:04,707 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:56:04,707 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:56:04,707 INFO L82 PathProgramCache]: Analyzing trace with hash -2096792784, now seen corresponding path program 1 times [2018-09-10 11:56:04,708 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:56:04,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:04,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:04,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:04,709 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:56:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:05,020 WARN L175 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:56:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:56:05,344 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:56:05,345 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:56:05,345 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:56:05,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:56:05,345 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:56:05,345 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:56:05,346 INFO L87 Difference]: Start difference. First operand 17518 states and 26075 transitions. Second operand 6 states. [2018-09-10 11:56:15,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:56:15,812 INFO L93 Difference]: Finished difference Result 45753 states and 75639 transitions. [2018-09-10 11:56:15,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:56:15,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-09-10 11:56:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:56:15,977 INFO L225 Difference]: With dead ends: 45753 [2018-09-10 11:56:15,977 INFO L226 Difference]: Without dead ends: 28241 [2018-09-10 11:56:16,037 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:56:16,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28241 states. [2018-09-10 11:56:16,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28241 to 28077. [2018-09-10 11:56:16,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28077 states. [2018-09-10 11:56:16,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28077 states to 28077 states and 42424 transitions. [2018-09-10 11:56:16,808 INFO L78 Accepts]: Start accepts. Automaton has 28077 states and 42424 transitions. Word has length 123 [2018-09-10 11:56:16,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:56:16,809 INFO L480 AbstractCegarLoop]: Abstraction has 28077 states and 42424 transitions. [2018-09-10 11:56:16,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:56:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 28077 states and 42424 transitions. [2018-09-10 11:56:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-10 11:56:16,813 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:56:16,814 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:56:16,814 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:56:16,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1240376352, now seen corresponding path program 1 times [2018-09-10 11:56:16,814 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:56:16,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:16,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:16,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:16,816 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:56:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:17,106 WARN L175 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:56:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:56:17,681 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:56:17,681 INFO L197 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 [2018-09-10 11:56:17,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:17,691 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:56:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:17,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:56:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-10 11:56:18,059 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:56:18,812 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-10 11:56:18,848 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:56:18,848 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 11 [2018-09-10 11:56:18,849 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:56:18,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:56:18,850 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:56:18,853 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:56:18,853 INFO L87 Difference]: Start difference. First operand 28077 states and 42424 transitions. Second operand 4 states. [2018-09-10 11:56:32,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:56:32,259 INFO L93 Difference]: Finished difference Result 80800 states and 131856 transitions. [2018-09-10 11:56:32,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:56:32,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2018-09-10 11:56:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:56:32,583 INFO L225 Difference]: With dead ends: 80800 [2018-09-10 11:56:32,584 INFO L226 Difference]: Without dead ends: 52729 [2018-09-10 11:56:32,802 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 278 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:56:32,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52729 states. [2018-09-10 11:56:34,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52729 to 52723. [2018-09-10 11:56:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52723 states. [2018-09-10 11:56:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52723 states to 52723 states and 82780 transitions. [2018-09-10 11:56:35,059 INFO L78 Accepts]: Start accepts. Automaton has 52723 states and 82780 transitions. Word has length 140 [2018-09-10 11:56:35,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:56:35,060 INFO L480 AbstractCegarLoop]: Abstraction has 52723 states and 82780 transitions. [2018-09-10 11:56:35,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:56:35,062 INFO L276 IsEmpty]: Start isEmpty. Operand 52723 states and 82780 transitions. [2018-09-10 11:56:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-09-10 11:56:35,070 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:56:35,070 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:56:35,071 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:56:35,071 INFO L82 PathProgramCache]: Analyzing trace with hash 113966859, now seen corresponding path program 1 times [2018-09-10 11:56:35,071 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:56:35,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:35,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:35,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:35,073 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:56:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:56:35,417 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:56:35,417 INFO L197 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 [2018-09-10 11:56:35,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:35,433 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:56:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:35,536 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:56:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-10 11:56:35,697 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:56:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:56:36,585 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:56:36,585 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-10 11:56:36,585 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:56:36,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:56:36,586 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:56:36,586 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:56:36,587 INFO L87 Difference]: Start difference. First operand 52723 states and 82780 transitions. Second operand 5 states. [2018-09-10 11:56:49,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:56:49,392 INFO L93 Difference]: Finished difference Result 144322 states and 248047 transitions. [2018-09-10 11:56:49,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:56:49,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 189 [2018-09-10 11:56:49,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:56:49,855 INFO L225 Difference]: With dead ends: 144322 [2018-09-10 11:56:49,856 INFO L226 Difference]: Without dead ends: 91605 [2018-09-10 11:56:50,016 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:56:50,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91605 states. [2018-09-10 11:56:51,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91605 to 91258. [2018-09-10 11:56:51,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91258 states. [2018-09-10 11:56:52,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91258 states to 91258 states and 137579 transitions. [2018-09-10 11:56:52,010 INFO L78 Accepts]: Start accepts. Automaton has 91258 states and 137579 transitions. Word has length 189 [2018-09-10 11:56:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:56:52,011 INFO L480 AbstractCegarLoop]: Abstraction has 91258 states and 137579 transitions. [2018-09-10 11:56:52,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:56:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand 91258 states and 137579 transitions. [2018-09-10 11:56:52,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-09-10 11:56:52,020 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:56:52,020 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:56:52,021 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:56:52,021 INFO L82 PathProgramCache]: Analyzing trace with hash 926001227, now seen corresponding path program 1 times [2018-09-10 11:56:52,021 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:56:52,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:52,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:52,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:52,022 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:56:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:56:52,316 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:56:52,316 INFO L197 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 [2018-09-10 11:56:53,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:53,226 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:56:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:53,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:56:53,403 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-09-10 11:56:53,403 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:56:53,630 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:56:53,663 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:56:53,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-09-10 11:56:53,664 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:56:53,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:56:53,665 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:56:53,665 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:56:53,665 INFO L87 Difference]: Start difference. First operand 91258 states and 137579 transitions. Second operand 5 states. [2018-09-10 11:57:16,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:57:16,039 INFO L93 Difference]: Finished difference Result 233598 states and 387046 transitions. [2018-09-10 11:57:16,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:57:16,039 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 221 [2018-09-10 11:57:16,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:57:16,761 INFO L225 Difference]: With dead ends: 233598 [2018-09-10 11:57:16,761 INFO L226 Difference]: Without dead ends: 142346 [2018-09-10 11:57:16,980 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 440 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:57:17,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142346 states. [2018-09-10 11:57:20,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142346 to 141820. [2018-09-10 11:57:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141820 states. [2018-09-10 11:57:20,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141820 states to 141820 states and 228654 transitions. [2018-09-10 11:57:20,787 INFO L78 Accepts]: Start accepts. Automaton has 141820 states and 228654 transitions. Word has length 221 [2018-09-10 11:57:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:57:20,787 INFO L480 AbstractCegarLoop]: Abstraction has 141820 states and 228654 transitions. [2018-09-10 11:57:20,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:57:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 141820 states and 228654 transitions. [2018-09-10 11:57:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-09-10 11:57:20,801 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:57:20,801 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:57:20,802 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:57:20,802 INFO L82 PathProgramCache]: Analyzing trace with hash -520002859, now seen corresponding path program 1 times [2018-09-10 11:57:20,802 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:57:20,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:57:20,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:57:20,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:57:20,803 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:57:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:57:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 113 proven. 30 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:57:21,190 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:57:21,190 INFO L197 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 [2018-09-10 11:57:21,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:57:21,205 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:57:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:57:21,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:57:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-09-10 11:57:21,526 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:57:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-09-10 11:57:22,001 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:57:22,001 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 3] total 7 [2018-09-10 11:57:22,001 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:57:22,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:57:22,002 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:57:22,002 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:57:22,003 INFO L87 Difference]: Start difference. First operand 141820 states and 228654 transitions. Second operand 3 states. [2018-09-10 11:57:33,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:57:33,362 INFO L93 Difference]: Finished difference Result 307034 states and 504077 transitions. [2018-09-10 11:57:33,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:57:33,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2018-09-10 11:57:33,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:57:34,102 INFO L225 Difference]: With dead ends: 307034 [2018-09-10 11:57:34,102 INFO L226 Difference]: Without dead ends: 166024 [2018-09-10 11:57:34,405 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:57:34,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166024 states. [2018-09-10 11:57:38,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166024 to 161192. [2018-09-10 11:57:38,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161192 states. [2018-09-10 11:57:38,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161192 states to 161192 states and 246026 transitions. [2018-09-10 11:57:38,830 INFO L78 Accepts]: Start accepts. Automaton has 161192 states and 246026 transitions. Word has length 244 [2018-09-10 11:57:38,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:57:38,830 INFO L480 AbstractCegarLoop]: Abstraction has 161192 states and 246026 transitions. [2018-09-10 11:57:38,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:57:38,831 INFO L276 IsEmpty]: Start isEmpty. Operand 161192 states and 246026 transitions. [2018-09-10 11:57:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-09-10 11:57:38,847 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:57:38,847 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:57:38,847 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:57:38,848 INFO L82 PathProgramCache]: Analyzing trace with hash 704561342, now seen corresponding path program 1 times [2018-09-10 11:57:38,848 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:57:38,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:57:38,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:57:38,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:57:38,849 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:57:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:57:39,120 WARN L175 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:57:39,190 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 96 proven. 140 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:57:39,190 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:57:39,190 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:57:40,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:57:40,769 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:57:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:57:40,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:57:40,983 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2018-09-10 11:57:40,983 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:57:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 96 proven. 140 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:57:41,172 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:57:41,172 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-10 11:57:41,172 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:57:41,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:57:41,173 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:57:41,173 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:57:41,173 INFO L87 Difference]: Start difference. First operand 161192 states and 246026 transitions. Second operand 5 states. [2018-09-10 11:57:58,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:57:58,960 INFO L93 Difference]: Finished difference Result 395350 states and 622563 transitions. [2018-09-10 11:57:58,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 11:57:58,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 267 [2018-09-10 11:57:58,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:57:59,811 INFO L225 Difference]: With dead ends: 395350 [2018-09-10 11:57:59,811 INFO L226 Difference]: Without dead ends: 234968 [2018-09-10 11:58:07,000 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 529 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:58:07,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234968 states. [2018-09-10 11:58:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234968 to 233005. [2018-09-10 11:58:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233005 states. [2018-09-10 11:58:11,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233005 states to 233005 states and 335312 transitions. [2018-09-10 11:58:11,410 INFO L78 Accepts]: Start accepts. Automaton has 233005 states and 335312 transitions. Word has length 267 [2018-09-10 11:58:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:58:11,410 INFO L480 AbstractCegarLoop]: Abstraction has 233005 states and 335312 transitions. [2018-09-10 11:58:11,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:58:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 233005 states and 335312 transitions. [2018-09-10 11:58:11,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-09-10 11:58:11,423 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:58:11,423 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:58:11,423 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:58:11,424 INFO L82 PathProgramCache]: Analyzing trace with hash 348217035, now seen corresponding path program 1 times [2018-09-10 11:58:11,424 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:58:11,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:58:11,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:58:11,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:58:11,425 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:58:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:58:12,012 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:58:12,012 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:58:12,013 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:58:12,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:58:12,028 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:58:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:58:12,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:58:12,318 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:58:12,318 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:58:13,116 WARN L175 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-09-10 11:58:13,171 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:58:13,193 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:58:13,194 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:58:13,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:58:13,210 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:58:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:58:13,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:58:13,517 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:58:13,517 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:58:13,692 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:58:13,694 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:58:13,695 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 11:58:13,695 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:58:13,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:58:13,697 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:58:13,697 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:58:13,697 INFO L87 Difference]: Start difference. First operand 233005 states and 335312 transitions. Second operand 9 states. [2018-09-10 11:58:31,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:58:31,647 INFO L93 Difference]: Finished difference Result 469573 states and 694367 transitions. [2018-09-10 11:58:31,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-10 11:58:31,648 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 272 [2018-09-10 11:58:31,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:58:32,461 INFO L225 Difference]: With dead ends: 469573 [2018-09-10 11:58:32,462 INFO L226 Difference]: Without dead ends: 237378 [2018-09-10 11:58:32,948 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1101 GetRequests, 1081 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2018-09-10 11:58:33,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237378 states. Received shutdown request... [2018-09-10 11:58:37,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237378 to 231726. [2018-09-10 11:58:37,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231726 states. [2018-09-10 11:58:37,769 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:58:37,773 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:58:37,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:58:37 BoogieIcfgContainer [2018-09-10 11:58:37,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:58:37,774 INFO L168 Benchmark]: Toolchain (without parser) took 221154.37 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-09-10 11:58:37,776 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 11:58:37,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2963.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-10 11:58:37,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 362.74 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-10 11:58:37,778 INFO L168 Benchmark]: Boogie Preprocessor took 1292.65 ms. Allocated memory was 1.5 GB in the beginning and 2.5 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. [2018-09-10 11:58:37,779 INFO L168 Benchmark]: RCFGBuilder took 11448.28 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 156.2 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 88.6 MB). Peak memory consumption was 740.4 MB. Max. memory is 7.1 GB. [2018-09-10 11:58:37,779 INFO L168 Benchmark]: TraceAbstraction took 205079.66 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -195.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-09-10 11:58:37,784 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2963.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 362.74 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1292.65 ms. Allocated memory was 1.5 GB in the beginning and 2.5 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 11448.28 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 156.2 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 88.6 MB). Peak memory consumption was 740.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205079.66 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -195.6 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 108). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 204.9s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 168.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5111 SDtfs, 35983 SDslu, 4458 SDs, 0 SdLazy, 55446 SolverSat, 14684 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 122.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3297 GetRequests, 3203 SyntacticMatches, 13 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233005occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 23.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 8106 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 3323 NumberOfCodeBlocks, 3323 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4904 ConstructedInterpolants, 0 QuantifiedInterpolants, 2792724 SizeOfPredicates, 16 NumberOfNonLiveVariables, 3119 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2661/3304 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_label22_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-58-37-800.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label22_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-58-37-800.csv Completed graceful shutdown