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/Problem17_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:32:18,373 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:32:18,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:32:18,387 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:32:18,387 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:32:18,389 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:32:18,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:32:18,392 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:32:18,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:32:18,397 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:32:18,405 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:32:18,406 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:32:18,407 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:32:18,408 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:32:18,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:32:18,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:32:18,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:32:18,413 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:32:18,418 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:32:18,421 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:32:18,422 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:32:18,423 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:32:18,426 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:32:18,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:32:18,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:32:18,427 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:32:18,429 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:32:18,430 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:32:18,430 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:32:18,431 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:32:18,432 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:32:18,432 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:32:18,432 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:32:18,433 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:32:18,434 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:32:18,434 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:32:18,435 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 12:32:18,464 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:32:18,465 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:32:18,465 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:32:18,466 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:32:18,466 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:32:18,466 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:32:18,466 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:32:18,466 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:32:18,467 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:32:18,467 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:32:18,467 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:32:18,468 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:32:18,468 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:32:18,469 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:32:18,469 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:32:18,469 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:32:18,469 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:32:18,471 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:32:18,471 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:32:18,471 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:32:18,472 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:32:18,472 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:32:18,472 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:32:18,472 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:32:18,472 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:32:18,473 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:32:18,473 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:32:18,473 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:32:18,473 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:32:18,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:32:18,474 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:32:18,474 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:32:18,474 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:32:18,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:32:18,543 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:32:18,550 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:32:18,551 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:32:18,552 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:32:18,552 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-09-10 12:32:18,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c3b3d5a/12a327787a444edf8db49ef9456ad800/FLAG9e0246bcb [2018-09-10 12:32:19,323 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:32:19,324 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-09-10 12:32:19,355 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c3b3d5a/12a327787a444edf8db49ef9456ad800/FLAG9e0246bcb [2018-09-10 12:32:19,371 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c3b3d5a/12a327787a444edf8db49ef9456ad800 [2018-09-10 12:32:19,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:32:19,388 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:32:19,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:32:19,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:32:19,399 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:32:19,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:32:19" (1/1) ... [2018-09-10 12:32:19,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a015c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:19, skipping insertion in model container [2018-09-10 12:32:19,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:32:19" (1/1) ... [2018-09-10 12:32:19,717 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:32:20,543 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:32:20,563 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:32:20,984 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:32:21,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21 WrapperNode [2018-09-10 12:32:21,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:32:21,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:32:21,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:32:21,206 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:32:21,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:21,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:21,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:32:21,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:32:21,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:32:21,548 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:32:22,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:22,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:22,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:22,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:22,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:22,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:22,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (1/1) ... [2018-09-10 12:32:22,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:32:22,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:32:22,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:32:22,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:32:22,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (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 12:32:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:32:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:32:22,433 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 12:32:22,434 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 12:32:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:32:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:32:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:32:22,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:32:22,434 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 12:32:22,435 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 12:32:32,758 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:32:32,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:32:32 BoogieIcfgContainer [2018-09-10 12:32:32,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:32:32,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:32:32,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:32:32,763 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:32:32,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:32:19" (1/3) ... [2018-09-10 12:32:32,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b89015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:32:32, skipping insertion in model container [2018-09-10 12:32:32,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:32:21" (2/3) ... [2018-09-10 12:32:32,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b89015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:32:32, skipping insertion in model container [2018-09-10 12:32:32,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:32:32" (3/3) ... [2018-09-10 12:32:32,767 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label58_true-unreach-call.c [2018-09-10 12:32:32,777 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:32:32,786 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:32:32,844 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:32:32,845 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:32:32,845 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:32:32,845 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:32:32,845 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:32:32,846 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:32:32,846 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:32:32,846 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:32:32,846 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:32:32,884 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-10 12:32:32,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-10 12:32:32,895 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:32:32,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:32:32,897 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 12:32:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1875924100, now seen corresponding path program 1 times [2018-09-10 12:32:32,906 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:32:32,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:32:32,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:32:32,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:32:32,961 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:32:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:32:33,443 WARN L175 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-09-10 12:32:33,456 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 12:32:33,459 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:32:33,459 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:32:33,459 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:32:33,466 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:32:33,482 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:32:33,483 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:32:33,486 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-10 12:32:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:32:44,827 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-09-10 12:32:44,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:32:44,830 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-09-10 12:32:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:32:44,866 INFO L225 Difference]: With dead ends: 2162 [2018-09-10 12:32:44,866 INFO L226 Difference]: Without dead ends: 1552 [2018-09-10 12:32:44,879 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 12:32:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-09-10 12:32:45,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-09-10 12:32:45,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-09-10 12:32:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-09-10 12:32:45,065 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 52 [2018-09-10 12:32:45,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:32:45,066 INFO L480 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-09-10 12:32:45,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:32:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-09-10 12:32:45,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-10 12:32:45,081 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:32:45,083 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, 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] [2018-09-10 12:32:45,083 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 12:32:45,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1524256091, now seen corresponding path program 1 times [2018-09-10 12:32:45,084 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:32:45,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:32:45,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:32:45,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:32:45,087 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:32:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:32:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:32:45,432 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:32:45,432 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:32:45,432 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:32:45,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:32:45,435 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:32:45,435 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:32:45,435 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-09-10 12:32:58,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:32:58,858 INFO L93 Difference]: Finished difference Result 4431 states and 8042 transitions. [2018-09-10 12:32:58,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:32:58,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-09-10 12:32:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:32:58,888 INFO L225 Difference]: With dead ends: 4431 [2018-09-10 12:32:58,888 INFO L226 Difference]: Without dead ends: 2912 [2018-09-10 12:32:58,895 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:32:58,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2018-09-10 12:32:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2878. [2018-09-10 12:32:58,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2878 states. [2018-09-10 12:32:58,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2878 states to 2878 states and 4713 transitions. [2018-09-10 12:32:58,999 INFO L78 Accepts]: Start accepts. Automaton has 2878 states and 4713 transitions. Word has length 131 [2018-09-10 12:32:59,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:32:59,000 INFO L480 AbstractCegarLoop]: Abstraction has 2878 states and 4713 transitions. [2018-09-10 12:32:59,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:32:59,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2878 states and 4713 transitions. [2018-09-10 12:32:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-10 12:32:59,013 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:32:59,013 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, 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 12:32:59,013 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 12:32:59,014 INFO L82 PathProgramCache]: Analyzing trace with hash -38072070, now seen corresponding path program 1 times [2018-09-10 12:32:59,015 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:32:59,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:32:59,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:32:59,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:32:59,016 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:32:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:32:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:32:59,293 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:32:59,293 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:32:59,293 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:32:59,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:32:59,294 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:32:59,294 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:32:59,295 INFO L87 Difference]: Start difference. First operand 2878 states and 4713 transitions. Second operand 6 states. [2018-09-10 12:33:05,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:33:05,924 INFO L93 Difference]: Finished difference Result 7152 states and 11706 transitions. [2018-09-10 12:33:05,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:33:05,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-09-10 12:33:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:33:05,954 INFO L225 Difference]: With dead ends: 7152 [2018-09-10 12:33:05,954 INFO L226 Difference]: Without dead ends: 4280 [2018-09-10 12:33:05,968 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:33:05,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2018-09-10 12:33:06,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4238. [2018-09-10 12:33:06,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4238 states. [2018-09-10 12:33:06,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 5873 transitions. [2018-09-10 12:33:06,087 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 5873 transitions. Word has length 132 [2018-09-10 12:33:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:33:06,089 INFO L480 AbstractCegarLoop]: Abstraction has 4238 states and 5873 transitions. [2018-09-10 12:33:06,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:33:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 5873 transitions. [2018-09-10 12:33:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-09-10 12:33:06,096 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:33:06,096 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:33:06,097 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 12:33:06,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1703108983, now seen corresponding path program 1 times [2018-09-10 12:33:06,097 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:33:06,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:06,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:06,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:06,098 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:33:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:06,560 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 109 proven. 53 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-10 12:33:06,561 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:33:06,561 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 12:33:06,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:06,570 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:33:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:06,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:33:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 12:33:06,904 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:33:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 12:33:07,429 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:33:07,430 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-09-10 12:33:07,430 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:33:07,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:33:07,431 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:33:07,431 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:33:07,432 INFO L87 Difference]: Start difference. First operand 4238 states and 5873 transitions. Second operand 3 states. [2018-09-10 12:33:13,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:33:13,674 INFO L93 Difference]: Finished difference Result 12471 states and 17721 transitions. [2018-09-10 12:33:13,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:33:13,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-09-10 12:33:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:33:13,718 INFO L225 Difference]: With dead ends: 12471 [2018-09-10 12:33:13,718 INFO L226 Difference]: Without dead ends: 8239 [2018-09-10 12:33:13,748 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 438 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:33:13,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8239 states. [2018-09-10 12:33:13,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8239 to 8234. [2018-09-10 12:33:13,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8234 states. [2018-09-10 12:33:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8234 states to 8234 states and 10662 transitions. [2018-09-10 12:33:13,953 INFO L78 Accepts]: Start accepts. Automaton has 8234 states and 10662 transitions. Word has length 219 [2018-09-10 12:33:13,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:33:13,953 INFO L480 AbstractCegarLoop]: Abstraction has 8234 states and 10662 transitions. [2018-09-10 12:33:13,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:33:13,954 INFO L276 IsEmpty]: Start isEmpty. Operand 8234 states and 10662 transitions. [2018-09-10 12:33:13,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-10 12:33:13,966 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:33:13,967 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, 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] [2018-09-10 12:33:13,967 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 12:33:13,967 INFO L82 PathProgramCache]: Analyzing trace with hash 445411383, now seen corresponding path program 1 times [2018-09-10 12:33:13,968 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:33:13,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:13,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:13,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:33:13,969 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:33:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:14,920 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 95 proven. 81 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-09-10 12:33:14,920 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:33:14,921 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 12:33:14,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:14,929 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:33:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:15,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:33:15,933 WARN L175 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 21 [2018-09-10 12:33:16,682 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 95 proven. 55 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-09-10 12:33:16,682 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:33:16,925 WARN L175 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-10 12:33:19,877 WARN L175 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2018-09-10 12:33:20,509 WARN L175 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-09-10 12:33:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 95 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:33:21,422 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:33:21,422 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 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:33:21,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:33:21,438 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:33:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:33:21,699 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:33:22,205 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-10 12:33:22,206 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:33:23,583 WARN L175 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2018-09-10 12:33:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 95 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:33:24,202 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:33:24,203 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 7, 8] total 27 [2018-09-10 12:33:24,203 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:33:24,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-10 12:33:24,205 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-10 12:33:24,205 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=577, Unknown=0, NotChecked=0, Total=702 [2018-09-10 12:33:24,206 INFO L87 Difference]: Start difference. First operand 8234 states and 10662 transitions. Second operand 14 states. [2018-09-10 12:33:24,928 WARN L175 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2018-09-10 12:34:34,014 WARN L175 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-10 12:34:50,452 WARN L175 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2018-09-10 12:35:06,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:35:06,534 INFO L93 Difference]: Finished difference Result 78615 states and 133655 transitions. [2018-09-10 12:35:06,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2018-09-10 12:35:06,551 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 282 [2018-09-10 12:35:06,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:35:07,302 INFO L225 Difference]: With dead ends: 78615 [2018-09-10 12:35:07,303 INFO L226 Difference]: Without dead ends: 69875 [2018-09-10 12:35:07,653 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1286 GetRequests, 1109 SyntacticMatches, 3 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11596 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=4719, Invalid=26081, Unknown=0, NotChecked=0, Total=30800 [2018-09-10 12:35:07,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69875 states. [2018-09-10 12:35:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69875 to 66515. [2018-09-10 12:35:11,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66515 states. [2018-09-10 12:35:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66515 states to 66515 states and 89215 transitions. [2018-09-10 12:35:11,517 INFO L78 Accepts]: Start accepts. Automaton has 66515 states and 89215 transitions. Word has length 282 [2018-09-10 12:35:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:35:11,518 INFO L480 AbstractCegarLoop]: Abstraction has 66515 states and 89215 transitions. [2018-09-10 12:35:11,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-10 12:35:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 66515 states and 89215 transitions. [2018-09-10 12:35:11,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-09-10 12:35:11,582 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:35:11,582 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, 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, 1, 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 12:35:11,582 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 12:35:11,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1890666171, now seen corresponding path program 1 times [2018-09-10 12:35:11,583 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:35:11,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:11,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:11,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:11,584 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:35:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 152 proven. 43 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:35:12,053 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:35:12,053 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 12:35:12,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:12,069 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:35:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:12,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:35:12,355 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-10 12:35:12,356 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:35:12,609 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-10 12:35:12,630 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:35:12,630 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-09-10 12:35:12,630 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:35:12,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:35:12,631 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:35:12,631 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:35:12,632 INFO L87 Difference]: Start difference. First operand 66515 states and 89215 transitions. Second operand 3 states. [2018-09-10 12:35:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:35:18,812 INFO L93 Difference]: Finished difference Result 133442 states and 180086 transitions. [2018-09-10 12:35:18,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:35:18,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 287 [2018-09-10 12:35:18,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:35:19,084 INFO L225 Difference]: With dead ends: 133442 [2018-09-10 12:35:19,085 INFO L226 Difference]: Without dead ends: 66967 [2018-09-10 12:35:19,676 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 574 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:35:19,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66967 states. [2018-09-10 12:35:21,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66967 to 64602. [2018-09-10 12:35:21,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64602 states. [2018-09-10 12:35:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64602 states to 64602 states and 83869 transitions. [2018-09-10 12:35:21,198 INFO L78 Accepts]: Start accepts. Automaton has 64602 states and 83869 transitions. Word has length 287 [2018-09-10 12:35:21,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:35:21,198 INFO L480 AbstractCegarLoop]: Abstraction has 64602 states and 83869 transitions. [2018-09-10 12:35:21,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:35:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 64602 states and 83869 transitions. [2018-09-10 12:35:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-09-10 12:35:21,231 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:35:21,232 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, 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, 1, 1, 1, 1, 1, 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 12:35:21,232 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 12:35:21,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1262603286, now seen corresponding path program 1 times [2018-09-10 12:35:21,232 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:35:21,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:21,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:21,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:21,234 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:35:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:21,520 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-10 12:35:21,520 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:35:21,520 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 12:35:21,520 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:35:21,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 12:35:21,521 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 12:35:21,521 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:35:21,521 INFO L87 Difference]: Start difference. First operand 64602 states and 83869 transitions. Second operand 4 states. [2018-09-10 12:35:30,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:35:30,888 INFO L93 Difference]: Finished difference Result 146291 states and 196572 transitions. [2018-09-10 12:35:30,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 12:35:30,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 291 [2018-09-10 12:35:30,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:35:31,261 INFO L225 Difference]: With dead ends: 146291 [2018-09-10 12:35:31,262 INFO L226 Difference]: Without dead ends: 81704 [2018-09-10 12:35:31,512 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 12:35:31,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81704 states. [2018-09-10 12:35:34,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81704 to 77512. [2018-09-10 12:35:34,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77512 states. [2018-09-10 12:35:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77512 states to 77512 states and 95980 transitions. [2018-09-10 12:35:34,260 INFO L78 Accepts]: Start accepts. Automaton has 77512 states and 95980 transitions. Word has length 291 [2018-09-10 12:35:34,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:35:34,261 INFO L480 AbstractCegarLoop]: Abstraction has 77512 states and 95980 transitions. [2018-09-10 12:35:34,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 12:35:34,262 INFO L276 IsEmpty]: Start isEmpty. Operand 77512 states and 95980 transitions. [2018-09-10 12:35:34,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-09-10 12:35:34,346 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:35:34,346 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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 12:35:34,346 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 12:35:34,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2134116548, now seen corresponding path program 1 times [2018-09-10 12:35:34,347 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:35:34,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:34,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:34,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:34,348 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:35:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 143 proven. 255 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-10 12:35:34,927 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:35:34,928 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 12:35:34,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:34,936 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:35:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:35,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:35:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2018-09-10 12:35:35,393 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:35:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 135 proven. 180 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-09-10 12:35:35,934 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:35:35,934 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 13 [2018-09-10 12:35:35,934 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:35:35,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:35:35,935 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:35:35,935 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:35:35,935 INFO L87 Difference]: Start difference. First operand 77512 states and 95980 transitions. Second operand 5 states. [2018-09-10 12:35:50,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:35:50,563 INFO L93 Difference]: Finished difference Result 171962 states and 206345 transitions. [2018-09-10 12:35:50,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:35:50,564 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 392 [2018-09-10 12:35:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:35:50,836 INFO L225 Difference]: With dead ends: 171962 [2018-09-10 12:35:50,836 INFO L226 Difference]: Without dead ends: 91282 [2018-09-10 12:35:51,023 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 782 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-10 12:35:51,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91282 states. [2018-09-10 12:35:52,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91282 to 88185. [2018-09-10 12:35:52,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88185 states. [2018-09-10 12:35:52,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88185 states to 88185 states and 102607 transitions. [2018-09-10 12:35:52,544 INFO L78 Accepts]: Start accepts. Automaton has 88185 states and 102607 transitions. Word has length 392 [2018-09-10 12:35:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:35:52,545 INFO L480 AbstractCegarLoop]: Abstraction has 88185 states and 102607 transitions. [2018-09-10 12:35:52,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:35:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 88185 states and 102607 transitions. [2018-09-10 12:35:52,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2018-09-10 12:35:52,605 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:35:52,605 INFO L376 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:35:52,607 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 12:35:52,607 INFO L82 PathProgramCache]: Analyzing trace with hash 780244789, now seen corresponding path program 1 times [2018-09-10 12:35:52,607 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:35:52,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:52,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:52,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:35:52,609 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:35:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:53,479 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2018-09-10 12:35:53,480 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:35:53,480 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 12:35:53,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:53,496 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:35:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:54,834 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:35:55,172 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2018-09-10 12:35:55,172 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:35:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2018-09-10 12:35:55,717 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:35:55,717 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 12:35:55,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:35:55,733 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:35:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:35:56,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:35:56,374 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2018-09-10 12:35:56,374 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:35:56,599 WARN L175 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-10 12:35:56,850 WARN L175 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-10 12:35:57,182 WARN L175 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2018-09-10 12:35:57,532 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2018-09-10 12:35:57,534 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:35:57,535 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 8 [2018-09-10 12:35:57,535 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:35:57,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:35:57,536 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:35:57,536 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 12:35:57,537 INFO L87 Difference]: Start difference. First operand 88185 states and 102607 transitions. Second operand 6 states. Received shutdown request... [2018-09-10 12:36:13,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-10 12:36:13,925 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:36:13,931 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:36:13,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:36:13 BoogieIcfgContainer [2018-09-10 12:36:13,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:36:13,934 INFO L168 Benchmark]: Toolchain (without parser) took 234550.69 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -187.7 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-10 12:36:13,936 INFO L168 Benchmark]: CDTParser took 0.20 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 12:36:13,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1815.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:13,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 341.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:13,938 INFO L168 Benchmark]: Boogie Preprocessor took 811.43 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 928.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:13,939 INFO L168 Benchmark]: RCFGBuilder took 10399.59 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 489.2 MB). Peak memory consumption was 489.2 MB. Max. memory is 7.1 GB. [2018-09-10 12:36:13,940 INFO L168 Benchmark]: TraceAbstraction took 221172.23 ms. Allocated memory was 2.5 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 1.8 GB in the beginning and 1.6 GB in the end (delta: 251.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-09-10 12:36:13,945 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1815.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 341.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 811.43 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 928.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10399.59 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 489.2 MB). Peak memory consumption was 489.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221172.23 ms. Allocated memory was 2.5 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 1.8 GB in the beginning and 1.6 GB in the end (delta: 251.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 143). Cancelled while BasicCegarLoop was constructing difference of abstraction (88185states) and FLOYD_HOARE automaton (currently 11 states, 6 states before enhancement), while ReachableStatesComputation was computing reachable states (70160 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 221.0s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 189.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3943 SDtfs, 27520 SDslu, 4193 SDs, 0 SdLazy, 57319 SolverSat, 11465 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 156.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5023 GetRequests, 4782 SyntacticMatches, 14 SemanticMatches, 227 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11657 ImplicationChecksByTransitivity, 17.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88185occurred in iteration=8, 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: 10.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 13122 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 16.4s InterpolantComputationTime, 4649 NumberOfCodeBlocks, 4649 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 7022 ConstructedInterpolants, 191 QuantifiedInterpolants, 9201485 SizeOfPredicates, 23 NumberOfNonLiveVariables, 3941 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 23 InterpolantComputations, 9 PerfectInterpolantSequences, 6032/6877 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/Problem17_label58_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-36-13-965.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label58_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-36-13-965.csv Completed graceful shutdown