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/Problem15_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:35:30,551 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:35:30,553 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:35:30,566 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:35:30,566 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:35:30,567 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:35:30,568 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:35:30,570 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:35:30,572 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:35:30,573 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:35:30,574 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:35:30,574 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:35:30,575 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:35:30,576 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:35:30,578 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:35:30,578 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:35:30,579 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:35:30,581 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:35:30,583 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:35:30,585 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:35:30,586 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:35:30,587 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:35:30,590 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:35:30,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:35:30,591 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:35:30,592 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:35:30,593 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:35:30,593 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:35:30,594 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:35:30,595 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:35:30,595 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:35:30,596 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:35:30,596 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:35:30,596 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:35:30,597 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:35:30,598 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:35:30,598 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 14:35:30,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:35:30,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:35:30,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:35:30,618 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:35:30,618 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:35:30,618 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:35:30,619 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:35:30,619 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:35:30,619 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:35:30,619 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:35:30,619 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:35:30,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:35:30,622 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:35:30,622 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:35:30,622 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:35:30,622 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:35:30,622 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:35:30,623 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:35:30,623 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:35:30,623 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:35:30,624 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:35:30,625 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:35:30,625 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:35:30,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:35:30,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:35:30,626 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:35:30,626 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:35:30,626 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:35:30,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:35:30,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:35:30,627 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:35:30,627 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:35:30,627 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:35:30,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:35:30,727 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:35:30,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:35:30,735 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:35:30,735 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:35:30,736 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label32_true-unreach-call.c [2018-07-24 14:35:31,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c910a872/39eb92c205f74452ab79354a79d6e2e1/FLAGb134a9ef8 [2018-07-24 14:35:31,469 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:35:31,470 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label32_true-unreach-call.c [2018-07-24 14:35:31,497 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c910a872/39eb92c205f74452ab79354a79d6e2e1/FLAGb134a9ef8 [2018-07-24 14:35:31,519 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c910a872/39eb92c205f74452ab79354a79d6e2e1 [2018-07-24 14:35:31,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:35:31,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:35:31,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:35:31,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:35:31,546 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:35:31,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:35:31" (1/1) ... [2018-07-24 14:35:31,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3819ccc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:31, skipping insertion in model container [2018-07-24 14:35:31,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:35:31" (1/1) ... [2018-07-24 14:35:31,841 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:35:32,450 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:35:32,469 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:35:32,800 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:35:32,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32 WrapperNode [2018-07-24 14:35:32,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:35:32,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:35:32,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:35:32,961 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:35:32,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:35:33,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:35:33,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:35:33,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:35:33,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (1/1) ... [2018-07-24 14:35:33,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:35:33,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:35:33,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:35:33,838 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:35:33,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (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 14:35:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:35:33,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:35:33,914 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 14:35:33,914 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 14:35:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:35:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:35:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:35:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:35:33,915 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 14:35:33,915 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 14:35:40,886 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:35:40,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:35:40 BoogieIcfgContainer [2018-07-24 14:35:40,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:35:40,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:35:40,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:35:40,892 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:35:40,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:35:31" (1/3) ... [2018-07-24 14:35:40,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382dce4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:35:40, skipping insertion in model container [2018-07-24 14:35:40,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:35:32" (2/3) ... [2018-07-24 14:35:40,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382dce4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:35:40, skipping insertion in model container [2018-07-24 14:35:40,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:35:40" (3/3) ... [2018-07-24 14:35:40,896 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label32_true-unreach-call.c [2018-07-24 14:35:40,906 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:35:40,916 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:35:40,976 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:35:40,976 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:35:40,977 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:35:40,977 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:35:40,977 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:35:40,977 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:35:40,977 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:35:40,978 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:35:40,978 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:35:41,009 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-07-24 14:35:41,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-24 14:35:41,022 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:35:41,023 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:35:41,024 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 14:35:41,029 INFO L82 PathProgramCache]: Analyzing trace with hash 586790028, now seen corresponding path program 1 times [2018-07-24 14:35:41,032 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:35:41,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:41,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:35:41,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:41,080 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:35:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:35:41,599 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 14:35:41,602 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:35:41,602 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:35:41,603 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:35:41,610 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:35:41,626 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:35:41,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:35:41,630 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-07-24 14:35:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:35:49,051 INFO L93 Difference]: Finished difference Result 1510 states and 2773 transitions. [2018-07-24 14:35:49,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:35:49,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-07-24 14:35:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:35:49,082 INFO L225 Difference]: With dead ends: 1510 [2018-07-24 14:35:49,082 INFO L226 Difference]: Without dead ends: 1066 [2018-07-24 14:35:49,095 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:35:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-07-24 14:35:49,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1064. [2018-07-24 14:35:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2018-07-24 14:35:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1590 transitions. [2018-07-24 14:35:49,212 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1590 transitions. Word has length 56 [2018-07-24 14:35:49,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:35:49,212 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1590 transitions. [2018-07-24 14:35:49,213 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:35:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1590 transitions. [2018-07-24 14:35:49,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-07-24 14:35:49,220 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:35:49,221 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 14:35:49,221 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 14:35:49,221 INFO L82 PathProgramCache]: Analyzing trace with hash -57618761, now seen corresponding path program 1 times [2018-07-24 14:35:49,222 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:35:49,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:49,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:35:49,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:49,223 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:35:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:35:49,493 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:35:49,493 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:35:49,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:35:49,494 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:35:49,496 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:35:49,496 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:35:49,496 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:35:49,496 INFO L87 Difference]: Start difference. First operand 1064 states and 1590 transitions. Second operand 4 states. [2018-07-24 14:35:55,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:35:55,486 INFO L93 Difference]: Finished difference Result 3975 states and 6106 transitions. [2018-07-24 14:35:55,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:35:55,487 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2018-07-24 14:35:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:35:55,512 INFO L225 Difference]: With dead ends: 3975 [2018-07-24 14:35:55,512 INFO L226 Difference]: Without dead ends: 2917 [2018-07-24 14:35:55,522 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:35:55,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2018-07-24 14:35:55,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2915. [2018-07-24 14:35:55,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2915 states. [2018-07-24 14:35:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4023 transitions. [2018-07-24 14:35:55,638 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4023 transitions. Word has length 126 [2018-07-24 14:35:55,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:35:55,639 INFO L471 AbstractCegarLoop]: Abstraction has 2915 states and 4023 transitions. [2018-07-24 14:35:55,639 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:35:55,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4023 transitions. [2018-07-24 14:35:55,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-07-24 14:35:55,664 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:35:55,665 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:35:55,665 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 14:35:55,670 INFO L82 PathProgramCache]: Analyzing trace with hash 326520621, now seen corresponding path program 1 times [2018-07-24 14:35:55,671 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:35:55,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:55,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:35:55,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:35:55,672 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:35:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:35:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 101 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 14:35:56,793 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:35:56,794 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 14:35:56,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:35:56,805 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:35:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:35:56,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:35:57,164 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-24 14:35:57,165 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:35:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-07-24 14:35:57,441 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:35:57,441 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-07-24 14:35:57,441 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:35:57,442 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:35:57,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:35:57,443 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:35:57,443 INFO L87 Difference]: Start difference. First operand 2915 states and 4023 transitions. Second operand 3 states. [2018-07-24 14:36:01,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:01,253 INFO L93 Difference]: Finished difference Result 6131 states and 8619 transitions. [2018-07-24 14:36:01,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:36:01,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2018-07-24 14:36:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:01,285 INFO L225 Difference]: With dead ends: 6131 [2018-07-24 14:36:01,285 INFO L226 Difference]: Without dead ends: 3222 [2018-07-24 14:36:01,298 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 622 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:36:01,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2018-07-24 14:36:01,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3222. [2018-07-24 14:36:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3222 states. [2018-07-24 14:36:01,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 4591 transitions. [2018-07-24 14:36:01,395 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 4591 transitions. Word has length 310 [2018-07-24 14:36:01,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:01,396 INFO L471 AbstractCegarLoop]: Abstraction has 3222 states and 4591 transitions. [2018-07-24 14:36:01,396 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:36:01,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 4591 transitions. [2018-07-24 14:36:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2018-07-24 14:36:01,412 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:01,412 INFO L353 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, 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, 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] [2018-07-24 14:36:01,413 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 14:36:01,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1477609809, now seen corresponding path program 1 times [2018-07-24 14:36:01,413 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:01,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:01,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:01,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:01,414 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 155 proven. 222 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 14:36:01,745 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:01,745 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 14:36:01,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:01,753 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:01,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:02,165 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-07-24 14:36:02,165 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 155 proven. 151 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-07-24 14:36:02,532 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:36:02,532 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 14:36:02,532 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:36:02,533 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:36:02,533 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:36:02,533 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:36:02,534 INFO L87 Difference]: Start difference. First operand 3222 states and 4591 transitions. Second operand 5 states. [2018-07-24 14:36:09,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:09,490 INFO L93 Difference]: Finished difference Result 9339 states and 13371 transitions. [2018-07-24 14:36:09,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:36:09,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 313 [2018-07-24 14:36:09,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:09,527 INFO L225 Difference]: With dead ends: 9339 [2018-07-24 14:36:09,528 INFO L226 Difference]: Without dead ends: 6123 [2018-07-24 14:36:09,545 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 623 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:36:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states. [2018-07-24 14:36:09,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6123 to 6076. [2018-07-24 14:36:09,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6076 states. [2018-07-24 14:36:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 7926 transitions. [2018-07-24 14:36:09,717 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 7926 transitions. Word has length 313 [2018-07-24 14:36:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:09,718 INFO L471 AbstractCegarLoop]: Abstraction has 6076 states and 7926 transitions. [2018-07-24 14:36:09,718 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:36:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 7926 transitions. [2018-07-24 14:36:09,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-07-24 14:36:09,725 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:09,725 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:09,726 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 14:36:09,726 INFO L82 PathProgramCache]: Analyzing trace with hash -978228805, now seen corresponding path program 1 times [2018-07-24 14:36:09,726 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:09,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:09,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:09,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:09,729 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:10,432 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2018-07-24 14:36:10,950 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 151 proven. 23 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:36:10,950 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:10,950 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 14:36:10,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:10,958 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:11,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:11,531 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-07-24 14:36:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 14:36:11,659 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:12,643 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 98 proven. 76 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:36:12,664 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:36:12,666 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 5] total 15 [2018-07-24 14:36:12,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:36:12,667 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:36:12,668 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:36:12,668 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-07-24 14:36:12,668 INFO L87 Difference]: Start difference. First operand 6076 states and 7926 transitions. Second operand 5 states. [2018-07-24 14:36:22,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:22,723 INFO L93 Difference]: Finished difference Result 15942 states and 21286 transitions. [2018-07-24 14:36:22,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:36:22,724 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 338 [2018-07-24 14:36:22,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:22,774 INFO L225 Difference]: With dead ends: 15942 [2018-07-24 14:36:22,774 INFO L226 Difference]: Without dead ends: 9872 [2018-07-24 14:36:22,812 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 673 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:36:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9872 states. [2018-07-24 14:36:23,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9872 to 9786. [2018-07-24 14:36:23,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2018-07-24 14:36:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 12831 transitions. [2018-07-24 14:36:23,061 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 12831 transitions. Word has length 338 [2018-07-24 14:36:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:23,062 INFO L471 AbstractCegarLoop]: Abstraction has 9786 states and 12831 transitions. [2018-07-24 14:36:23,062 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:36:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 12831 transitions. [2018-07-24 14:36:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2018-07-24 14:36:23,077 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:23,078 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:23,078 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 14:36:23,078 INFO L82 PathProgramCache]: Analyzing trace with hash -581406492, now seen corresponding path program 1 times [2018-07-24 14:36:23,078 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:23,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:23,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:23,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:23,080 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:23,877 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 9 proven. 92 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-07-24 14:36:23,878 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:23,878 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 14:36:23,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:23,888 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:24,026 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:24,268 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:24,268 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:24,723 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:24,745 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:24,745 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:36:24,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:24,760 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:25,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:26,000 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 104 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:26,001 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:36:26,362 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:36:26,364 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:36:26,365 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 7, 5] total 19 [2018-07-24 14:36:26,365 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:36:26,366 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-24 14:36:26,366 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-24 14:36:26,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-07-24 14:36:26,367 INFO L87 Difference]: Start difference. First operand 9786 states and 12831 transitions. Second operand 10 states. [2018-07-24 14:36:55,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:36:55,470 INFO L93 Difference]: Finished difference Result 48319 states and 67922 transitions. [2018-07-24 14:36:55,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-07-24 14:36:55,471 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 412 [2018-07-24 14:36:55,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:36:55,638 INFO L225 Difference]: With dead ends: 48319 [2018-07-24 14:36:55,638 INFO L226 Difference]: Without dead ends: 38847 [2018-07-24 14:36:55,725 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1715 GetRequests, 1655 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=694, Invalid=2846, Unknown=0, NotChecked=0, Total=3540 [2018-07-24 14:36:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38847 states. [2018-07-24 14:36:56,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38847 to 36552. [2018-07-24 14:36:56,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36552 states. [2018-07-24 14:36:56,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36552 states to 36552 states and 48282 transitions. [2018-07-24 14:36:56,578 INFO L78 Accepts]: Start accepts. Automaton has 36552 states and 48282 transitions. Word has length 412 [2018-07-24 14:36:56,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:36:56,580 INFO L471 AbstractCegarLoop]: Abstraction has 36552 states and 48282 transitions. [2018-07-24 14:36:56,580 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-24 14:36:56,581 INFO L276 IsEmpty]: Start isEmpty. Operand 36552 states and 48282 transitions. [2018-07-24 14:36:56,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2018-07-24 14:36:56,623 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:36:56,623 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 14:36:56,624 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 14:36:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1855215257, now seen corresponding path program 1 times [2018-07-24 14:36:56,624 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:36:56,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:56,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:56,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:36:56,626 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:36:56,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:58,026 WARN L169 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2018-07-24 14:36:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 532 proven. 81 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 14:36:58,613 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:36:58,613 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:36:58,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:36:58,621 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:36:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:36:58,822 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:36:59,673 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 508 proven. 41 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-07-24 14:36:59,673 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:37:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 211 proven. 428 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 14:37:00,516 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:37:00,517 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:37:00,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:00,533 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:37:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:00,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:37:01,764 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 458 proven. 41 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-07-24 14:37:01,764 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:37:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 211 proven. 428 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 14:37:02,759 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:37:02,759 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 27 [2018-07-24 14:37:02,759 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:37:02,761 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-24 14:37:02,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-24 14:37:02,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2018-07-24 14:37:02,762 INFO L87 Difference]: Start difference. First operand 36552 states and 48282 transitions. Second operand 17 states. [2018-07-24 14:37:13,287 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-07-24 14:37:18,442 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2018-07-24 14:37:31,876 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 42 [2018-07-24 14:37:37,340 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2018-07-24 14:37:41,024 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-07-24 14:37:46,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:37:46,296 INFO L93 Difference]: Finished difference Result 133421 states and 195523 transitions. [2018-07-24 14:37:46,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2018-07-24 14:37:46,296 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 533 [2018-07-24 14:37:46,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:37:46,857 INFO L225 Difference]: With dead ends: 133421 [2018-07-24 14:37:46,857 INFO L226 Difference]: Without dead ends: 94321 [2018-07-24 14:37:47,211 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2329 GetRequests, 2202 SyntacticMatches, 6 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5492 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2688, Invalid=12318, Unknown=0, NotChecked=0, Total=15006 [2018-07-24 14:37:47,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94321 states. [2018-07-24 14:37:49,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94321 to 82626. [2018-07-24 14:37:49,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82626 states. [2018-07-24 14:37:50,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82626 states to 82626 states and 106871 transitions. [2018-07-24 14:37:50,208 INFO L78 Accepts]: Start accepts. Automaton has 82626 states and 106871 transitions. Word has length 533 [2018-07-24 14:37:50,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:37:50,208 INFO L471 AbstractCegarLoop]: Abstraction has 82626 states and 106871 transitions. [2018-07-24 14:37:50,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-24 14:37:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 82626 states and 106871 transitions. [2018-07-24 14:37:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2018-07-24 14:37:50,246 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:37:50,247 INFO L353 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:37:50,247 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 14:37:50,247 INFO L82 PathProgramCache]: Analyzing trace with hash -856620003, now seen corresponding path program 1 times [2018-07-24 14:37:50,247 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:37:50,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:37:50,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:50,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:37:50,249 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:37:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:50,688 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-07-24 14:37:51,332 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 415 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 14:37:51,333 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:37:51,333 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:37:51,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:37:51,345 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:37:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:37:51,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:38:05,809 WARN L169 SmtUtils]: Spent 14.07 s on a formula simplification. DAG size of input: 116 DAG size of output: 50 [2018-07-24 14:38:06,294 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 410 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:06,294 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:38:06,683 WARN L169 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-07-24 14:38:06,804 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2018-07-24 14:38:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 410 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:38:07,355 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:38:07,356 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:38:07,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:38:07,371 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:38:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:38:07,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:38:30,691 WARN L169 SmtUtils]: Spent 22.57 s on a formula simplification that was a NOOP. DAG size: 59 [2018-07-24 14:38:36,822 WARN L169 SmtUtils]: Spent 6.05 s on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2018-07-24 14:38:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 365 proven. 111 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 14:38:37,420 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:38:43,996 WARN L169 SmtUtils]: Spent 6.13 s on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2018-07-24 14:38:44,710 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:38:44,950 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 18 Received shutdown request... [2018-07-24 14:39:44,226 WARN L177 SmtUtils]: Removed 5 from assertion stack [2018-07-24 14:39:44,226 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 14:39:44,428 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:39:44,428 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:39:44,434 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:39:44,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:39:44 BoogieIcfgContainer [2018-07-24 14:39:44,435 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:39:44,436 INFO L168 Benchmark]: Toolchain (without parser) took 252903.79 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 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 1.3 GB. Max. memory is 7.1 GB. [2018-07-24 14:39:44,437 INFO L168 Benchmark]: CDTParser took 0.24 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 14:39:44,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1422.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:44,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 262.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:44,439 INFO L168 Benchmark]: Boogie Preprocessor took 613.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 897.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:44,440 INFO L168 Benchmark]: RCFGBuilder took 7050.31 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 327.7 MB). Peak memory consumption was 327.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:44,440 INFO L168 Benchmark]: TraceAbstraction took 243546.45 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -484.0 MB). Peak memory consumption was 965.6 MB. Max. memory is 7.1 GB. [2018-07-24 14:39:44,445 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1422.38 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 262.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 613.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 897.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7050.31 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 327.7 MB). Peak memory consumption was 327.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243546.45 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.4 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -484.0 MB). Peak memory consumption was 965.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 154). Cancelled while BasicCegarLoop was analyzing trace of length 599 with TraceHistMax 4, while TraceCheckSpWp was constructing backward predicates, while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 84. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 243.4s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 108.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1618 SDtfs, 20966 SDslu, 2964 SDs, 0 SdLazy, 36369 SolverSat, 10572 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 86.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6010 GetRequests, 5782 SyntacticMatches, 15 SemanticMatches, 213 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6549 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82626occurred in iteration=7, 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: 4.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 14127 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 12.7s InterpolantComputationTime, 4939 NumberOfCodeBlocks, 4939 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 7769 ConstructedInterpolants, 0 QuantifiedInterpolants, 19995112 SizeOfPredicates, 25 NumberOfNonLiveVariables, 4305 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 5126/6877 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/Problem15_label32_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-39-44-461.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label32_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-39-44-461.csv Completed graceful shutdown