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/Problem04_label28_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-07 11:12:25,150 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-07 11:12:25,152 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-07 11:12:25,169 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-07 11:12:25,169 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-07 11:12:25,171 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-07 11:12:25,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-07 11:12:25,175 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-07 11:12:25,179 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-07 11:12:25,180 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-07 11:12:25,181 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-07 11:12:25,181 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-07 11:12:25,182 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-07 11:12:25,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-07 11:12:25,186 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-07 11:12:25,187 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-07 11:12:25,188 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-07 11:12:25,196 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-07 11:12:25,203 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-07 11:12:25,205 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-07 11:12:25,206 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-07 11:12:25,207 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-07 11:12:25,213 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-07 11:12:25,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-07 11:12:25,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-07 11:12:25,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-07 11:12:25,216 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-07 11:12:25,216 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-07 11:12:25,217 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-07 11:12:25,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-07 11:12:25,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-07 11:12:25,224 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-07 11:12:25,225 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-07 11:12:25,225 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-07 11:12:25,226 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-07 11:12:25,227 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-07 11:12:25,227 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 [2018-08-07 11:12:25,257 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-07 11:12:25,257 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-07 11:12:25,261 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-07 11:12:25,261 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-07 11:12:25,262 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-07 11:12:25,262 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-07 11:12:25,262 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-07 11:12:25,262 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-07 11:12:25,262 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-07 11:12:25,263 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-07 11:12:25,263 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-07 11:12:25,263 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-07 11:12:25,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-07 11:12:25,264 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-07 11:12:25,264 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-07 11:12:25,264 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-07 11:12:25,264 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-07 11:12:25,265 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-07 11:12:25,265 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-07 11:12:25,265 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-07 11:12:25,265 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-07 11:12:25,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-07 11:12:25,267 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-07 11:12:25,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 11:12:25,267 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-07 11:12:25,267 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-07 11:12:25,268 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-07 11:12:25,268 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-08-07 11:12:25,268 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-07 11:12:25,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-07 11:12:25,268 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-07 11:12:25,269 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-07 11:12:25,269 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-07 11:12:25,332 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-07 11:12:25,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-07 11:12:25,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-07 11:12:25,352 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-07 11:12:25,352 INFO L276 PluginConnector]: CDTParser initialized [2018-08-07 11:12:25,353 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label28_true-unreach-call.c [2018-08-07 11:12:25,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416eb6ab0/62ac29d60b604d56ad09172b64f8e409/FLAGd2189fbba [2018-08-07 11:12:26,152 INFO L276 CDTParser]: Found 1 translation units. [2018-08-07 11:12:26,153 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label28_true-unreach-call.c [2018-08-07 11:12:26,184 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416eb6ab0/62ac29d60b604d56ad09172b64f8e409/FLAGd2189fbba [2018-08-07 11:12:26,199 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/416eb6ab0/62ac29d60b604d56ad09172b64f8e409 [2018-08-07 11:12:26,211 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-07 11:12:26,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-07 11:12:26,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-07 11:12:26,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-07 11:12:26,222 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-07 11:12:26,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 11:12:26" (1/1) ... [2018-08-07 11:12:26,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7298ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:26, skipping insertion in model container [2018-08-07 11:12:26,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 11:12:26" (1/1) ... [2018-08-07 11:12:26,599 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-07 11:12:27,692 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 11:12:27,710 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-07 11:12:28,776 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 11:12:28,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28 WrapperNode [2018-08-07 11:12:28,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-07 11:12:28,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-07 11:12:28,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-07 11:12:28,918 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-07 11:12:28,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:28,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-07 11:12:29,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-07 11:12:29,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-07 11:12:29,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-07 11:12:29,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (1/1) ... [2018-08-07 11:12:29,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-07 11:12:29,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-07 11:12:29,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-07 11:12:29,653 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-07 11:12:29,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (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 [2018-08-07 11:12:29,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-07 11:12:29,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-07 11:12:29,726 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 [2018-08-07 11:12:29,727 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 [2018-08-07 11:12:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-07 11:12:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-07 11:12:29,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-07 11:12:29,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-07 11:12:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-07 11:12:29,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-07 11:12:29,728 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-07 11:12:29,728 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-07 11:12:29,728 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 [2018-08-07 11:12:29,729 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 [2018-08-07 11:12:41,161 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-07 11:12:41,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 11:12:41 BoogieIcfgContainer [2018-08-07 11:12:41,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-07 11:12:41,163 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-07 11:12:41,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-07 11:12:41,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-07 11:12:41,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 11:12:26" (1/3) ... [2018-08-07 11:12:41,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e35eef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 11:12:41, skipping insertion in model container [2018-08-07 11:12:41,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 11:12:28" (2/3) ... [2018-08-07 11:12:41,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e35eef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 11:12:41, skipping insertion in model container [2018-08-07 11:12:41,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 11:12:41" (3/3) ... [2018-08-07 11:12:41,170 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label28_true-unreach-call.c [2018-08-07 11:12:41,180 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-07 11:12:41,189 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-07 11:12:41,251 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-07 11:12:41,252 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-07 11:12:41,252 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-07 11:12:41,252 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-07 11:12:41,253 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-07 11:12:41,253 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-07 11:12:41,253 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-07 11:12:41,253 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-07 11:12:41,253 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-07 11:12:41,291 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-08-07 11:12:41,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2018-08-07 11:12:41,346 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:12:41,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:12:41,349 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:12:41,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1546137628, now seen corresponding path program 1 times [2018-08-07 11:12:41,359 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:12:41,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:12:41,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:12:41,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:12:41,416 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:12:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:12:42,942 WARN L170 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 11:12:43,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:12:43,929 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 11:12:43,930 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-07 11:12:43,930 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:12:43,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 11:12:43,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 11:12:43,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-07 11:12:43,958 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-08-07 11:12:52,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:12:52,131 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-08-07 11:12:52,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 11:12:52,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 821 [2018-08-07 11:12:52,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:12:52,186 INFO L225 Difference]: With dead ends: 2647 [2018-08-07 11:12:52,186 INFO L226 Difference]: Without dead ends: 1738 [2018-08-07 11:12:52,200 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-07 11:12:52,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-08-07 11:12:52,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-08-07 11:12:52,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-08-07 11:12:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3275 transitions. [2018-08-07 11:12:52,398 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3275 transitions. Word has length 821 [2018-08-07 11:12:52,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:12:52,403 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3275 transitions. [2018-08-07 11:12:52,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 11:12:52,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3275 transitions. [2018-08-07 11:12:52,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2018-08-07 11:12:52,434 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:12:52,435 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:12:52,435 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:12:52,436 INFO L82 PathProgramCache]: Analyzing trace with hash 75754765, now seen corresponding path program 1 times [2018-08-07 11:12:52,436 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:12:52,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:12:52,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:12:52,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:12:52,438 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:12:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:12:52,824 WARN L170 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 11:12:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:12:53,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 11:12:53,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-08-07 11:12:53,265 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:12:53,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 11:12:53,268 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 11:12:53,268 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-08-07 11:12:53,268 INFO L87 Difference]: Start difference. First operand 1738 states and 3275 transitions. Second operand 5 states. [2018-08-07 11:13:03,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:13:03,700 INFO L93 Difference]: Finished difference Result 5344 states and 10161 transitions. [2018-08-07 11:13:03,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 11:13:03,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 831 [2018-08-07 11:13:03,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:13:03,725 INFO L225 Difference]: With dead ends: 5344 [2018-08-07 11:13:03,726 INFO L226 Difference]: Without dead ends: 3612 [2018-08-07 11:13:03,733 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-08-07 11:13:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2018-08-07 11:13:03,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3583. [2018-08-07 11:13:03,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3583 states. [2018-08-07 11:13:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 6259 transitions. [2018-08-07 11:13:03,848 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 6259 transitions. Word has length 831 [2018-08-07 11:13:03,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:13:03,849 INFO L480 AbstractCegarLoop]: Abstraction has 3583 states and 6259 transitions. [2018-08-07 11:13:03,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 11:13:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 6259 transitions. [2018-08-07 11:13:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2018-08-07 11:13:03,875 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:13:03,876 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:13:03,877 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:13:03,877 INFO L82 PathProgramCache]: Analyzing trace with hash -2061056699, now seen corresponding path program 1 times [2018-08-07 11:13:03,877 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:13:03,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:03,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:13:03,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:03,880 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:13:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:13:04,320 WARN L170 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 11:13:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:05,370 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 11:13:05,370 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 11:13:05,371 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:13:05,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 11:13:05,374 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 11:13:05,376 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 11:13:05,377 INFO L87 Difference]: Start difference. First operand 3583 states and 6259 transitions. Second operand 6 states. [2018-08-07 11:13:12,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:13:12,788 INFO L93 Difference]: Finished difference Result 11013 states and 19692 transitions. [2018-08-07 11:13:12,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 11:13:12,788 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 880 [2018-08-07 11:13:12,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:13:12,836 INFO L225 Difference]: With dead ends: 11013 [2018-08-07 11:13:12,837 INFO L226 Difference]: Without dead ends: 7436 [2018-08-07 11:13:12,851 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-08-07 11:13:12,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2018-08-07 11:13:13,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7346. [2018-08-07 11:13:13,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7346 states. [2018-08-07 11:13:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7346 states to 7346 states and 12279 transitions. [2018-08-07 11:13:13,061 INFO L78 Accepts]: Start accepts. Automaton has 7346 states and 12279 transitions. Word has length 880 [2018-08-07 11:13:13,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:13:13,062 INFO L480 AbstractCegarLoop]: Abstraction has 7346 states and 12279 transitions. [2018-08-07 11:13:13,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 11:13:13,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7346 states and 12279 transitions. [2018-08-07 11:13:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2018-08-07 11:13:13,092 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:13:13,093 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:13:13,093 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:13:13,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1965877592, now seen corresponding path program 1 times [2018-08-07 11:13:13,094 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:13:13,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:13,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:13:13,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:13,095 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:13:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:13:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:14,226 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:13:14,227 INFO L194 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 [2018-08-07 11:13:14,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:13:14,387 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:13:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:13:14,837 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:13:15,574 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:15,574 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:13:16,551 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:16,588 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:13:16,588 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 11:13:16,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:13:16,620 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:13:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:13:17,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:13:18,410 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:18,410 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:13:19,634 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:19,636 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 11:13:19,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-08-07 11:13:19,638 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 11:13:19,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-07 11:13:19,640 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-07 11:13:19,640 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-08-07 11:13:19,641 INFO L87 Difference]: Start difference. First operand 7346 states and 12279 transitions. Second operand 9 states. [2018-08-07 11:13:20,216 WARN L170 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-08-07 11:13:43,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:13:43,795 INFO L93 Difference]: Finished difference Result 36748 states and 75347 transitions. [2018-08-07 11:13:43,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-08-07 11:13:43,796 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 889 [2018-08-07 11:13:43,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:13:44,039 INFO L225 Difference]: With dead ends: 36748 [2018-08-07 11:13:44,039 INFO L226 Difference]: Without dead ends: 29408 [2018-08-07 11:13:44,104 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 3650 GetRequests, 3589 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=710, Invalid=3072, Unknown=0, NotChecked=0, Total=3782 [2018-08-07 11:13:44,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29408 states. [2018-08-07 11:13:45,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29408 to 28392. [2018-08-07 11:13:45,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28392 states. [2018-08-07 11:13:45,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28392 states to 28392 states and 41233 transitions. [2018-08-07 11:13:45,262 INFO L78 Accepts]: Start accepts. Automaton has 28392 states and 41233 transitions. Word has length 889 [2018-08-07 11:13:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:13:45,263 INFO L480 AbstractCegarLoop]: Abstraction has 28392 states and 41233 transitions. [2018-08-07 11:13:45,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-08-07 11:13:45,263 INFO L276 IsEmpty]: Start isEmpty. Operand 28392 states and 41233 transitions. [2018-08-07 11:13:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2018-08-07 11:13:45,389 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:13:45,390 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:13:45,390 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:13:45,391 INFO L82 PathProgramCache]: Analyzing trace with hash 634393197, now seen corresponding path program 1 times [2018-08-07 11:13:45,391 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:13:45,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:45,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:13:45,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:45,393 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:13:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:13:45,773 WARN L170 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 11:13:46,985 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:46,985 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 11:13:46,986 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 11:13:46,986 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:13:46,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 11:13:46,987 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 11:13:46,987 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 11:13:46,988 INFO L87 Difference]: Start difference. First operand 28392 states and 41233 transitions. Second operand 6 states. [2018-08-07 11:13:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:13:54,852 INFO L93 Difference]: Finished difference Result 71275 states and 109525 transitions. [2018-08-07 11:13:54,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 11:13:54,856 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 900 [2018-08-07 11:13:54,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:13:55,012 INFO L225 Difference]: With dead ends: 71275 [2018-08-07 11:13:55,012 INFO L226 Difference]: Without dead ends: 42889 [2018-08-07 11:13:55,140 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-08-07 11:13:55,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42889 states. [2018-08-07 11:13:56,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42889 to 42597. [2018-08-07 11:13:56,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42597 states. [2018-08-07 11:13:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42597 states to 42597 states and 59987 transitions. [2018-08-07 11:13:56,518 INFO L78 Accepts]: Start accepts. Automaton has 42597 states and 59987 transitions. Word has length 900 [2018-08-07 11:13:56,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:13:56,519 INFO L480 AbstractCegarLoop]: Abstraction has 42597 states and 59987 transitions. [2018-08-07 11:13:56,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 11:13:56,519 INFO L276 IsEmpty]: Start isEmpty. Operand 42597 states and 59987 transitions. [2018-08-07 11:13:56,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2018-08-07 11:13:56,645 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:13:56,646 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:13:56,646 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:13:56,646 INFO L82 PathProgramCache]: Analyzing trace with hash -446234224, now seen corresponding path program 1 times [2018-08-07 11:13:56,647 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:13:56,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:56,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:13:56,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:13:56,648 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:13:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:13:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:57,668 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:13:57,669 INFO L194 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 [2018-08-07 11:13:57,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:13:57,685 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:13:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:13:58,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:13:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:13:58,974 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:14:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 11:14:00,023 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:14:00,023 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 11:14:00,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:00,038 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:14:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:00,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:14:01,370 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-08-07 11:14:01,370 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:14:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-08-07 11:14:02,293 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-08-07 11:14:02,294 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 17 [2018-08-07 11:14:02,294 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:14:02,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 11:14:02,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 11:14:02,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-08-07 11:14:02,296 INFO L87 Difference]: Start difference. First operand 42597 states and 59987 transitions. Second operand 5 states. [2018-08-07 11:14:09,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:14:09,197 INFO L93 Difference]: Finished difference Result 99882 states and 150519 transitions. [2018-08-07 11:14:09,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-07 11:14:09,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 920 [2018-08-07 11:14:09,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:14:09,405 INFO L225 Difference]: With dead ends: 99882 [2018-08-07 11:14:09,405 INFO L226 Difference]: Without dead ends: 57291 [2018-08-07 11:14:09,497 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 3685 GetRequests, 3668 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-08-07 11:14:09,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57291 states. [2018-08-07 11:14:10,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57291 to 57101. [2018-08-07 11:14:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57101 states. [2018-08-07 11:14:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57101 states to 57101 states and 79468 transitions. [2018-08-07 11:14:10,630 INFO L78 Accepts]: Start accepts. Automaton has 57101 states and 79468 transitions. Word has length 920 [2018-08-07 11:14:10,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:14:10,631 INFO L480 AbstractCegarLoop]: Abstraction has 57101 states and 79468 transitions. [2018-08-07 11:14:10,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 11:14:10,631 INFO L276 IsEmpty]: Start isEmpty. Operand 57101 states and 79468 transitions. [2018-08-07 11:14:10,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2018-08-07 11:14:10,771 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:14:10,772 INFO L376 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:14:10,772 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:14:10,773 INFO L82 PathProgramCache]: Analyzing trace with hash 507711532, now seen corresponding path program 1 times [2018-08-07 11:14:10,773 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:14:10,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:14:10,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:10,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:14:10,774 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:14:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:11,841 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 202 proven. 87 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-08-07 11:14:11,841 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:14:11,841 INFO L194 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 [2018-08-07 11:14:11,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:11,851 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:14:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:12,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:14:13,255 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-08-07 11:14:13,256 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:14:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-08-07 11:14:14,235 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-08-07 11:14:14,236 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-08-07 11:14:14,236 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:14:14,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 11:14:14,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 11:14:14,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-08-07 11:14:14,238 INFO L87 Difference]: Start difference. First operand 57101 states and 79468 transitions. Second operand 3 states. [2018-08-07 11:14:19,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:14:19,755 INFO L93 Difference]: Finished difference Result 114196 states and 159293 transitions. [2018-08-07 11:14:19,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 11:14:19,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1007 [2018-08-07 11:14:19,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:14:19,939 INFO L225 Difference]: With dead ends: 114196 [2018-08-07 11:14:19,939 INFO L226 Difference]: Without dead ends: 57101 [2018-08-07 11:14:20,034 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 2019 GetRequests, 2009 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-08-07 11:14:20,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57101 states. [2018-08-07 11:14:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57101 to 56266. [2018-08-07 11:14:21,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56266 states. [2018-08-07 11:14:21,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56266 states to 56266 states and 75102 transitions. [2018-08-07 11:14:21,203 INFO L78 Accepts]: Start accepts. Automaton has 56266 states and 75102 transitions. Word has length 1007 [2018-08-07 11:14:21,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:14:21,204 INFO L480 AbstractCegarLoop]: Abstraction has 56266 states and 75102 transitions. [2018-08-07 11:14:21,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 11:14:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 56266 states and 75102 transitions. [2018-08-07 11:14:21,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2018-08-07 11:14:21,333 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:14:21,334 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:14:21,335 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:14:21,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1844920849, now seen corresponding path program 1 times [2018-08-07 11:14:21,335 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:14:21,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:14:21,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:21,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:14:21,337 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:14:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-08-07 11:14:23,110 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:14:23,110 INFO L194 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 [2018-08-07 11:14:23,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:23,127 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:14:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:23,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:14:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-08-07 11:14:24,051 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:14:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-08-07 11:14:25,049 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:14:25,049 INFO L194 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 [2018-08-07 11:14:25,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:25,065 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:14:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:26,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:14:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-08-07 11:14:26,959 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:14:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-08-07 11:14:27,463 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 11:14:27,465 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-08-07 11:14:27,466 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 11:14:27,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-07 11:14:27,467 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-07 11:14:27,468 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-08-07 11:14:27,468 INFO L87 Difference]: Start difference. First operand 56266 states and 75102 transitions. Second operand 9 states. [2018-08-07 11:14:41,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:14:41,321 INFO L93 Difference]: Finished difference Result 131775 states and 193039 transitions. [2018-08-07 11:14:41,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-08-07 11:14:41,322 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1075 [2018-08-07 11:14:41,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:14:41,622 INFO L225 Difference]: With dead ends: 131775 [2018-08-07 11:14:41,622 INFO L226 Difference]: Without dead ends: 75515 [2018-08-07 11:14:41,731 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 4320 GetRequests, 4298 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2018-08-07 11:14:41,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75515 states. [2018-08-07 11:14:43,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75515 to 74175. [2018-08-07 11:14:43,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74175 states. [2018-08-07 11:14:43,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74175 states to 74175 states and 98944 transitions. [2018-08-07 11:14:43,424 INFO L78 Accepts]: Start accepts. Automaton has 74175 states and 98944 transitions. Word has length 1075 [2018-08-07 11:14:43,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:14:43,425 INFO L480 AbstractCegarLoop]: Abstraction has 74175 states and 98944 transitions. [2018-08-07 11:14:43,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-08-07 11:14:43,425 INFO L276 IsEmpty]: Start isEmpty. Operand 74175 states and 98944 transitions. [2018-08-07 11:14:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2018-08-07 11:14:43,612 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:14:43,613 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:14:43,613 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:14:43,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1922611680, now seen corresponding path program 1 times [2018-08-07 11:14:43,614 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:14:43,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:14:43,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:43,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:14:43,615 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:14:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 517 proven. 262 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-08-07 11:14:44,953 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:14:44,953 INFO L194 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 [2018-08-07 11:14:44,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:44,960 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:14:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:45,476 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:14:46,299 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 692 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-08-07 11:14:46,299 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:14:47,297 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 629 proven. 108 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-08-07 11:14:47,320 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:14:47,320 INFO L194 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 [2018-08-07 11:14:47,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:14:47,341 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:14:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:14:48,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:14:49,262 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 692 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-08-07 11:14:49,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:14:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 629 proven. 108 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-08-07 11:14:50,074 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 11:14:50,075 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-08-07 11:14:50,075 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 11:14:50,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-07 11:14:50,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-07 11:14:50,077 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-08-07 11:14:50,078 INFO L87 Difference]: Start difference. First operand 74175 states and 98944 transitions. Second operand 9 states. [2018-08-07 11:15:05,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:15:05,490 INFO L93 Difference]: Finished difference Result 190180 states and 260773 transitions. [2018-08-07 11:15:05,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-08-07 11:15:05,490 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1322 [2018-08-07 11:15:05,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:15:05,840 INFO L225 Difference]: With dead ends: 190180 [2018-08-07 11:15:05,840 INFO L226 Difference]: Without dead ends: 93910 [2018-08-07 11:15:06,060 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 5337 GetRequests, 5299 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2018-08-07 11:15:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93910 states. [2018-08-07 11:15:07,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93910 to 92450. [2018-08-07 11:15:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92450 states. [2018-08-07 11:15:08,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92450 states to 92450 states and 103985 transitions. [2018-08-07 11:15:08,045 INFO L78 Accepts]: Start accepts. Automaton has 92450 states and 103985 transitions. Word has length 1322 [2018-08-07 11:15:08,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:15:08,045 INFO L480 AbstractCegarLoop]: Abstraction has 92450 states and 103985 transitions. [2018-08-07 11:15:08,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-08-07 11:15:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 92450 states and 103985 transitions. [2018-08-07 11:15:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2018-08-07 11:15:08,164 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:15:08,165 INFO L376 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 11:15:08,166 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:15:08,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1385226556, now seen corresponding path program 1 times [2018-08-07 11:15:08,167 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:15:08,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:15:08,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:15:08,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:15:08,168 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:15:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:15:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 764 proven. 103 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-08-07 11:15:10,386 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:15:10,386 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 11:15:10,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:15:10,395 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:15:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:15:11,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:15:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 745 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-08-07 11:15:12,401 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:15:13,674 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 745 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-08-07 11:15:13,697 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-08-07 11:15:13,697 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-08-07 11:15:13,698 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:15:13,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 11:15:13,700 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 11:15:13,700 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-08-07 11:15:13,700 INFO L87 Difference]: Start difference. First operand 92450 states and 103985 transitions. Second operand 3 states. [2018-08-07 11:15:17,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:15:17,773 INFO L93 Difference]: Finished difference Result 184884 states and 207946 transitions. [2018-08-07 11:15:17,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 11:15:17,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1575 [2018-08-07 11:15:17,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:15:18,013 INFO L225 Difference]: With dead ends: 184884 [2018-08-07 11:15:18,013 INFO L226 Difference]: Without dead ends: 92445 [2018-08-07 11:15:18,175 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 3155 GetRequests, 3145 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-08-07 11:15:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92445 states. [2018-08-07 11:15:19,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92445 to 88167. [2018-08-07 11:15:19,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88167 states. [2018-08-07 11:15:19,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88167 states to 88167 states and 96162 transitions. [2018-08-07 11:15:19,590 INFO L78 Accepts]: Start accepts. Automaton has 88167 states and 96162 transitions. Word has length 1575 [2018-08-07 11:15:19,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:15:19,591 INFO L480 AbstractCegarLoop]: Abstraction has 88167 states and 96162 transitions. [2018-08-07 11:15:19,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 11:15:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 88167 states and 96162 transitions. [2018-08-07 11:15:19,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1653 [2018-08-07 11:15:19,666 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 11:15:19,667 INFO L376 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 11:15:19,667 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 11:15:19,668 INFO L82 PathProgramCache]: Analyzing trace with hash -901787170, now seen corresponding path program 1 times [2018-08-07 11:15:19,668 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 11:15:19,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:15:19,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:15:19,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 11:15:19,669 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 11:15:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:15:21,336 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 836 proven. 74 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-08-07 11:15:21,336 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 11:15:21,336 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 11:15:21,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 11:15:21,345 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 11:15:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 11:15:21,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 11:15:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 819 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-08-07 11:15:23,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 11:15:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 819 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-08-07 11:15:24,866 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-08-07 11:15:24,867 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-08-07 11:15:24,867 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 11:15:24,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 11:15:24,869 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 11:15:24,869 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-08-07 11:15:24,869 INFO L87 Difference]: Start difference. First operand 88167 states and 96162 transitions. Second operand 3 states. [2018-08-07 11:15:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 11:15:28,733 INFO L93 Difference]: Finished difference Result 173716 states and 189601 transitions. [2018-08-07 11:15:28,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 11:15:28,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1652 [2018-08-07 11:15:28,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 11:15:28,736 INFO L225 Difference]: With dead ends: 173716 [2018-08-07 11:15:28,736 INFO L226 Difference]: Without dead ends: 0 [2018-08-07 11:15:28,941 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 3309 GetRequests, 3303 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-08-07 11:15:28,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-08-07 11:15:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-08-07 11:15:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-08-07 11:15:28,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-08-07 11:15:28,942 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1652 [2018-08-07 11:15:28,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 11:15:28,943 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-08-07 11:15:28,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 11:15:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-08-07 11:15:28,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-08-07 11:15:28,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-08-07 11:15:31,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,811 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,920 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:31,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,257 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:32,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,631 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:33,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:34,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,179 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,684 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,701 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,736 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:35,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,297 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,305 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:36,972 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,152 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,627 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:37,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,213 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,493 WARN L170 SmtUtils]: Spent 6.81 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1072 [2018-08-07 11:15:38,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,580 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,583 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,593 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,647 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:38,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:39,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,467 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,499 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,804 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:40,984 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,018 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,933 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:41,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,366 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,439 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:42,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,163 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,448 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:43,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:44,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:44,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:44,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-08-07 11:15:44,149 WARN L170 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1072 [2018-08-07 11:15:47,423 WARN L170 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 [2018-08-07 11:15:50,727 WARN L170 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 [2018-08-07 11:15:53,942 WARN L170 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 [2018-08-07 11:15:57,074 WARN L170 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 [2018-08-07 11:16:00,269 WARN L170 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 Received shutdown request... [2018-08-07 11:16:03,240 WARN L178 SmtUtils]: Removed 22 from assertion stack [2018-08-07 11:16:03,240 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-08-07 11:16:03,242 INFO L168 Benchmark]: Toolchain (without parser) took 217029.88 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-08-07 11:16:03,243 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-07 11:16:03,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2702.54 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-08-07 11:16:03,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.88 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-07 11:16:03,246 INFO L168 Benchmark]: Boogie Preprocessor took 581.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2018-08-07 11:16:03,249 INFO L168 Benchmark]: RCFGBuilder took 11509.22 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 192.4 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -86.6 MB). Peak memory consumption was 714.7 MB. Max. memory is 7.1 GB. [2018-08-07 11:16:03,249 INFO L168 Benchmark]: TraceAbstraction took 202077.75 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: -689.0 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-08-07 11:16:03,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2702.54 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 153.88 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 581.18 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 808.5 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11509.22 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 192.4 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -86.6 MB). Peak memory consumption was 714.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202077.75 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 3.0 GB in the end (delta: -689.0 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4781]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 332. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label28_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-07_11-16-03-274.csv Completed graceful shutdown