java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:59:29,179 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:59:29,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:59:29,198 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:59:29,198 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:59:29,199 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:59:29,200 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:59:29,202 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:59:29,204 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:59:29,204 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:59:29,205 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:59:29,205 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:59:29,206 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:59:29,207 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:59:29,208 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:59:29,209 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:59:29,210 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:59:29,212 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:59:29,214 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:59:29,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:59:29,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:59:29,218 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:59:29,220 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:59:29,220 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:59:29,221 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:59:29,222 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:59:29,223 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:59:29,224 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:59:29,224 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:59:29,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:59:29,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:59:29,227 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:59:29,227 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:59:29,227 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:59:29,228 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:59:29,229 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:59:29,229 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:59:29,260 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:59:29,260 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:59:29,261 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:59:29,261 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:59:29,261 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:59:29,262 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:59:29,262 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:59:29,262 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:59:29,263 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:59:29,263 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:59:29,263 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:59:29,264 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:59:29,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:59:29,265 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:59:29,265 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:59:29,265 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:59:29,265 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:59:29,266 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:59:29,266 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:59:29,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:59:29,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:59:29,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:59:29,267 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:59:29,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:59:29,268 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:59:29,268 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:59:29,268 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:59:29,268 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:59:29,269 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:59:29,269 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:59:29,269 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:59:29,270 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:59:29,270 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:59:29,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:59:29,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:59:29,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:59:29,367 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:59:29,367 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:59:29,369 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-07-24 14:59:29,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f0e4331/996d115d6e5e4de5952c9c2d6789c58a/FLAG63e2e3574 [2018-07-24 14:59:30,176 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:59:30,177 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label14_true-unreach-call.c [2018-07-24 14:59:30,209 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f0e4331/996d115d6e5e4de5952c9c2d6789c58a/FLAG63e2e3574 [2018-07-24 14:59:30,230 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6f0e4331/996d115d6e5e4de5952c9c2d6789c58a [2018-07-24 14:59:30,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:59:30,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:59:30,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:59:30,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:59:30,256 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:59:30,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:59:30" (1/1) ... [2018-07-24 14:59:30,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73387c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:30, skipping insertion in model container [2018-07-24 14:59:30,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:59:30" (1/1) ... [2018-07-24 14:59:30,549 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:59:31,391 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:59:31,407 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:59:31,925 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:59:32,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32 WrapperNode [2018-07-24 14:59:32,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:59:32,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:59:32,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:59:32,086 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:59:32,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:59:32,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:59:32,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:59:32,265 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:59:32,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... [2018-07-24 14:59:32,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:59:32,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:59:32,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:59:32,900 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:59:32,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:59:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:59:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:59:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:59:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:59:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:59:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:59:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:59:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:59:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:59:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:59:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:59:32,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:59:41,141 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:59:41,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:59:41 BoogieIcfgContainer [2018-07-24 14:59:41,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:59:41,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:59:41,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:59:41,149 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:59:41,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:59:30" (1/3) ... [2018-07-24 14:59:41,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142c8639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:59:41, skipping insertion in model container [2018-07-24 14:59:41,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:59:32" (2/3) ... [2018-07-24 14:59:41,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142c8639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:59:41, skipping insertion in model container [2018-07-24 14:59:41,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:59:41" (3/3) ... [2018-07-24 14:59:41,153 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label14_true-unreach-call.c [2018-07-24 14:59:41,163 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:59:41,172 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:59:41,229 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:59:41,230 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:59:41,230 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:59:41,230 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:59:41,230 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:59:41,230 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:59:41,231 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:59:41,231 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:59:41,231 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:59:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-24 14:59:41,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-07-24 14:59:41,278 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:59:41,280 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:59:41,280 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:59:41,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1367317081, now seen corresponding path program 1 times [2018-07-24 14:59:41,289 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:59:41,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:41,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:41,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:41,337 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:59:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:41,758 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:59:41,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:59:41,790 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:59:41,791 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:59:41,791 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:59:41,797 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:59:41,812 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:59:41,813 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:59:41,815 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-24 14:59:48,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:59:48,481 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-24 14:59:48,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:59:48,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2018-07-24 14:59:48,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:59:48,530 INFO L225 Difference]: With dead ends: 2251 [2018-07-24 14:59:48,530 INFO L226 Difference]: Without dead ends: 1474 [2018-07-24 14:59:48,541 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:59:48,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-24 14:59:48,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-24 14:59:48,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-24 14:59:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2800 transitions. [2018-07-24 14:59:48,736 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2800 transitions. Word has length 57 [2018-07-24 14:59:48,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:59:48,737 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2800 transitions. [2018-07-24 14:59:48,737 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:59:48,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2800 transitions. [2018-07-24 14:59:48,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-07-24 14:59:48,744 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:59:48,744 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:59:48,745 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:59:48,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1134438966, now seen corresponding path program 1 times [2018-07-24 14:59:48,745 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:59:48,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:48,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:59:48,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:59:48,747 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:59:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:59:49,087 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:59:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:59:49,314 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:59:49,314 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:59:49,315 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:59:49,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:59:49,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:59:49,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:59:49,318 INFO L87 Difference]: Start difference. First operand 1474 states and 2800 transitions. Second operand 5 states. [2018-07-24 15:00:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:00:00,684 INFO L93 Difference]: Finished difference Result 4419 states and 8483 transitions. [2018-07-24 15:00:00,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 15:00:00,687 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2018-07-24 15:00:00,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:00:00,712 INFO L225 Difference]: With dead ends: 4419 [2018-07-24 15:00:00,712 INFO L226 Difference]: Without dead ends: 2951 [2018-07-24 15:00:00,718 INFO L573 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 [2018-07-24 15:00:00,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-07-24 15:00:00,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-07-24 15:00:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-07-24 15:00:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5205 transitions. [2018-07-24 15:00:00,817 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5205 transitions. Word has length 127 [2018-07-24 15:00:00,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:00:00,818 INFO L471 AbstractCegarLoop]: Abstraction has 2925 states and 5205 transitions. [2018-07-24 15:00:00,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 15:00:00,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5205 transitions. [2018-07-24 15:00:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2018-07-24 15:00:00,831 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:00:00,832 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 15:00:00,832 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:00:00,832 INFO L82 PathProgramCache]: Analyzing trace with hash -368777595, now seen corresponding path program 1 times [2018-07-24 15:00:00,832 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:00:00,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:00,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:00,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:00,834 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:00:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:00:01,115 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:00:01,115 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:00:01,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:00:01,116 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:00:01,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:00:01,116 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:00:01,116 INFO L87 Difference]: Start difference. First operand 2925 states and 5205 transitions. Second operand 6 states. [2018-07-24 15:00:13,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:00:13,874 INFO L93 Difference]: Finished difference Result 11941 states and 22535 transitions. [2018-07-24 15:00:13,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 15:00:13,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2018-07-24 15:00:13,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:00:13,954 INFO L225 Difference]: With dead ends: 11941 [2018-07-24 15:00:13,954 INFO L226 Difference]: Without dead ends: 9022 [2018-07-24 15:00:13,986 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 15:00:13,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9022 states. [2018-07-24 15:00:14,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9022 to 8934. [2018-07-24 15:00:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8934 states. [2018-07-24 15:00:14,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8934 states to 8934 states and 13433 transitions. [2018-07-24 15:00:14,299 INFO L78 Accepts]: Start accepts. Automaton has 8934 states and 13433 transitions. Word has length 128 [2018-07-24 15:00:14,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:00:14,299 INFO L471 AbstractCegarLoop]: Abstraction has 8934 states and 13433 transitions. [2018-07-24 15:00:14,299 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:00:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8934 states and 13433 transitions. [2018-07-24 15:00:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-07-24 15:00:14,313 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:00:14,313 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:00:14,313 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:00:14,314 INFO L82 PathProgramCache]: Analyzing trace with hash 801403666, now seen corresponding path program 1 times [2018-07-24 15:00:14,314 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:00:14,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:14,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:14,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:14,315 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:00:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:14,878 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:00:14,878 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:00:14,879 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-07-24 15:00:14,879 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:00:14,880 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 15:00:14,880 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 15:00:14,880 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-07-24 15:00:14,880 INFO L87 Difference]: Start difference. First operand 8934 states and 13433 transitions. Second operand 9 states. [2018-07-24 15:00:23,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:00:23,928 INFO L93 Difference]: Finished difference Result 22512 states and 35380 transitions. [2018-07-24 15:00:23,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-24 15:00:23,932 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2018-07-24 15:00:23,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:00:24,016 INFO L225 Difference]: With dead ends: 22512 [2018-07-24 15:00:24,016 INFO L226 Difference]: Without dead ends: 13584 [2018-07-24 15:00:24,048 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2018-07-24 15:00:24,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13584 states. [2018-07-24 15:00:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13584 to 13425. [2018-07-24 15:00:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13425 states. [2018-07-24 15:00:24,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13425 states to 13425 states and 19272 transitions. [2018-07-24 15:00:24,406 INFO L78 Accepts]: Start accepts. Automaton has 13425 states and 19272 transitions. Word has length 195 [2018-07-24 15:00:24,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:00:24,406 INFO L471 AbstractCegarLoop]: Abstraction has 13425 states and 19272 transitions. [2018-07-24 15:00:24,406 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 15:00:24,407 INFO L276 IsEmpty]: Start isEmpty. Operand 13425 states and 19272 transitions. [2018-07-24 15:00:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-07-24 15:00:24,420 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:00:24,421 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 15:00:24,421 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:00:24,421 INFO L82 PathProgramCache]: Analyzing trace with hash 739096038, now seen corresponding path program 1 times [2018-07-24 15:00:24,421 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:00:24,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:24,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:24,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:24,423 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:00:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:24,901 WARN L169 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-07-24 15:00:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 56 proven. 162 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 15:00:25,239 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:00:25,239 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 15:00:25,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:25,250 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:00:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:25,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:00:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-07-24 15:00:25,538 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:00:25,995 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-07-24 15:00:26,029 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 15:00:26,029 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-07-24 15:00:26,029 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:00:26,030 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 15:00:26,030 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 15:00:26,031 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-07-24 15:00:26,031 INFO L87 Difference]: Start difference. First operand 13425 states and 19272 transitions. Second operand 3 states. [2018-07-24 15:00:32,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:00:32,080 INFO L93 Difference]: Finished difference Result 26844 states and 38592 transitions. [2018-07-24 15:00:32,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 15:00:32,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 318 [2018-07-24 15:00:32,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:00:32,144 INFO L225 Difference]: With dead ends: 26844 [2018-07-24 15:00:32,145 INFO L226 Difference]: Without dead ends: 13425 [2018-07-24 15:00:32,224 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 637 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-07-24 15:00:32,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13425 states. [2018-07-24 15:00:32,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13425 to 12710. [2018-07-24 15:00:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12710 states. [2018-07-24 15:00:32,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12710 states to 12710 states and 16332 transitions. [2018-07-24 15:00:32,552 INFO L78 Accepts]: Start accepts. Automaton has 12710 states and 16332 transitions. Word has length 318 [2018-07-24 15:00:32,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:00:32,555 INFO L471 AbstractCegarLoop]: Abstraction has 12710 states and 16332 transitions. [2018-07-24 15:00:32,555 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 15:00:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 12710 states and 16332 transitions. [2018-07-24 15:00:32,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-07-24 15:00:32,568 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:00:32,568 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 15:00:32,568 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:00:32,569 INFO L82 PathProgramCache]: Analyzing trace with hash -69116137, now seen corresponding path program 1 times [2018-07-24 15:00:32,569 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:00:32,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:32,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:32,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:32,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:00:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-07-24 15:00:33,152 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:00:33,152 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 15:00:33,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:33,168 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:00:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:33,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:00:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-07-24 15:00:33,744 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:00:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-07-24 15:00:34,095 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:00:34,095 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 15:00:34,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:34,111 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:00:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:34,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:00:34,579 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-07-24 15:00:34,579 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:00:35,367 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 227 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-07-24 15:00:35,371 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:00:35,371 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 15:00:35,371 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:00:35,372 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 15:00:35,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 15:00:35,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 15:00:35,374 INFO L87 Difference]: Start difference. First operand 12710 states and 16332 transitions. Second operand 9 states. [2018-07-24 15:00:48,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:00:48,129 INFO L93 Difference]: Finished difference Result 47164 states and 69025 transitions. [2018-07-24 15:00:48,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 15:00:48,129 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 324 [2018-07-24 15:00:48,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:00:48,341 INFO L225 Difference]: With dead ends: 47164 [2018-07-24 15:00:48,342 INFO L226 Difference]: Without dead ends: 31315 [2018-07-24 15:00:48,453 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1295 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-07-24 15:00:48,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31315 states. [2018-07-24 15:00:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31315 to 30249. [2018-07-24 15:00:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30249 states. [2018-07-24 15:00:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30249 states to 30249 states and 37177 transitions. [2018-07-24 15:00:49,270 INFO L78 Accepts]: Start accepts. Automaton has 30249 states and 37177 transitions. Word has length 324 [2018-07-24 15:00:49,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:00:49,271 INFO L471 AbstractCegarLoop]: Abstraction has 30249 states and 37177 transitions. [2018-07-24 15:00:49,271 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 15:00:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand 30249 states and 37177 transitions. [2018-07-24 15:00:49,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-07-24 15:00:49,282 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:00:49,282 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 15:00:49,282 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:00:49,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2011045846, now seen corresponding path program 1 times [2018-07-24 15:00:49,283 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:00:49,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:49,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:49,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:49,284 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:00:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:49,633 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-07-24 15:00:49,634 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:00:49,634 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 15:00:49,634 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:00:49,635 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 15:00:49,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 15:00:49,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 15:00:49,636 INFO L87 Difference]: Start difference. First operand 30249 states and 37177 transitions. Second operand 4 states. [2018-07-24 15:00:56,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:00:56,243 INFO L93 Difference]: Finished difference Result 71159 states and 91035 transitions. [2018-07-24 15:00:56,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 15:00:56,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 357 [2018-07-24 15:00:56,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:00:56,405 INFO L225 Difference]: With dead ends: 71159 [2018-07-24 15:00:56,406 INFO L226 Difference]: Without dead ends: 40921 [2018-07-24 15:00:56,522 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 15:00:56,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40921 states. [2018-07-24 15:00:57,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40921 to 40904. [2018-07-24 15:00:57,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40904 states. [2018-07-24 15:00:57,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40904 states to 40904 states and 48321 transitions. [2018-07-24 15:00:57,356 INFO L78 Accepts]: Start accepts. Automaton has 40904 states and 48321 transitions. Word has length 357 [2018-07-24 15:00:57,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:00:57,357 INFO L471 AbstractCegarLoop]: Abstraction has 40904 states and 48321 transitions. [2018-07-24 15:00:57,357 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 15:00:57,358 INFO L276 IsEmpty]: Start isEmpty. Operand 40904 states and 48321 transitions. [2018-07-24 15:00:57,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-07-24 15:00:57,365 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:00:57,365 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 15:00:57,366 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:00:57,366 INFO L82 PathProgramCache]: Analyzing trace with hash 901035950, now seen corresponding path program 1 times [2018-07-24 15:00:57,366 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:00:57,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:57,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:57,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:00:57,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:00:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 15 proven. 418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:00:58,256 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:00:58,256 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 15:00:58,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:00:58,265 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:00:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:00:58,390 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:00:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-07-24 15:00:58,793 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:00:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 150 proven. 185 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-07-24 15:01:00,011 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:01:00,012 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [18, 5] total 23 [2018-07-24 15:01:00,012 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:01:00,012 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 15:01:00,013 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 15:01:00,013 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2018-07-24 15:01:00,013 INFO L87 Difference]: Start difference. First operand 40904 states and 48321 transitions. Second operand 5 states. [2018-07-24 15:01:05,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:01:05,893 INFO L93 Difference]: Finished difference Result 89726 states and 105607 transitions. [2018-07-24 15:01:05,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 15:01:05,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 375 [2018-07-24 15:01:05,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:01:06,086 INFO L225 Difference]: With dead ends: 89726 [2018-07-24 15:01:06,087 INFO L226 Difference]: Without dead ends: 50228 [2018-07-24 15:01:06,213 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 746 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2018-07-24 15:01:06,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50228 states. [2018-07-24 15:01:07,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50228 to 47288. [2018-07-24 15:01:07,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47288 states. [2018-07-24 15:01:07,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47288 states to 47288 states and 55159 transitions. [2018-07-24 15:01:07,179 INFO L78 Accepts]: Start accepts. Automaton has 47288 states and 55159 transitions. Word has length 375 [2018-07-24 15:01:07,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:01:07,179 INFO L471 AbstractCegarLoop]: Abstraction has 47288 states and 55159 transitions. [2018-07-24 15:01:07,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 15:01:07,179 INFO L276 IsEmpty]: Start isEmpty. Operand 47288 states and 55159 transitions. [2018-07-24 15:01:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2018-07-24 15:01:07,191 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:01:07,191 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 15:01:07,192 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:01:07,192 INFO L82 PathProgramCache]: Analyzing trace with hash -710917919, now seen corresponding path program 1 times [2018-07-24 15:01:07,192 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:01:07,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:01:07,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:01:07,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:01:07,193 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:01:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:01:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 95 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:01:08,318 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:01:08,318 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-07-24 15:01:08,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:01:08,328 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:01:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:01:08,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:01:08,683 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2018-07-24 15:01:08,684 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:01:09,179 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 100 proven. 93 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 15:01:09,200 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:01:09,201 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [12, 6] total 17 [2018-07-24 15:01:09,201 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:01:09,201 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 15:01:09,201 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 15:01:09,202 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-07-24 15:01:09,202 INFO L87 Difference]: Start difference. First operand 47288 states and 55159 transitions. Second operand 5 states. [2018-07-24 15:01:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:01:17,256 INFO L93 Difference]: Finished difference Result 114266 states and 136613 transitions. [2018-07-24 15:01:17,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 15:01:17,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 463 [2018-07-24 15:01:17,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:01:17,515 INFO L225 Difference]: With dead ends: 114266 [2018-07-24 15:01:17,515 INFO L226 Difference]: Without dead ends: 67684 [2018-07-24 15:01:17,688 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 920 SyntacticMatches, 9 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2018-07-24 15:01:17,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67684 states. [2018-07-24 15:01:18,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67684 to 66933. [2018-07-24 15:01:18,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66933 states. [2018-07-24 15:01:18,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66933 states to 66933 states and 77192 transitions. [2018-07-24 15:01:18,894 INFO L78 Accepts]: Start accepts. Automaton has 66933 states and 77192 transitions. Word has length 463 [2018-07-24 15:01:18,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:01:18,895 INFO L471 AbstractCegarLoop]: Abstraction has 66933 states and 77192 transitions. [2018-07-24 15:01:18,895 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 15:01:18,895 INFO L276 IsEmpty]: Start isEmpty. Operand 66933 states and 77192 transitions. [2018-07-24 15:01:18,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2018-07-24 15:01:18,909 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:01:18,910 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:01:18,910 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:01:18,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1207755350, now seen corresponding path program 1 times [2018-07-24 15:01:18,910 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:01:18,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:01:18,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:01:18,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:01:18,911 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:01:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:01:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 60 proven. 594 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:01:23,791 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:01:23,791 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 15:01:23,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:01:23,799 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:01:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:01:24,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:01:25,390 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2018-07-24 15:01:25,391 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:01:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2018-07-24 15:01:27,175 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:01:27,176 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 15:01:27,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:01:27,191 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:01:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:01:27,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:01:28,451 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2018-07-24 15:01:28,452 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:01:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2018-07-24 15:01:29,552 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:01:29,553 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 5, 5, 5, 5] total 36 [2018-07-24 15:01:29,554 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:01:29,556 INFO L450 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-07-24 15:01:29,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-07-24 15:01:29,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1064, Unknown=0, NotChecked=0, Total=1260 [2018-07-24 15:01:29,557 INFO L87 Difference]: Start difference. First operand 66933 states and 77192 transitions. Second operand 29 states. [2018-07-24 15:01:40,521 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-07-24 15:01:40,706 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2018-07-24 15:01:41,789 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-07-24 15:01:42,827 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2018-07-24 15:01:43,149 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2018-07-24 15:01:43,839 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2018-07-24 15:01:44,108 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2018-07-24 15:01:46,498 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-07-24 15:01:47,886 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2018-07-24 15:01:48,041 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 35 [2018-07-24 15:01:48,420 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2018-07-24 15:01:50,191 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2018-07-24 15:01:51,718 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2018-07-24 15:01:54,123 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-07-24 15:01:54,298 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-07-24 15:01:55,523 WARN L169 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2018-07-24 15:01:55,796 WARN L169 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2018-07-24 15:01:56,321 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2018-07-24 15:01:57,174 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2018-07-24 15:01:57,391 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-07-24 15:01:58,969 WARN L169 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2018-07-24 15:01:59,396 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-07-24 15:02:00,047 WARN L169 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-07-24 15:02:04,073 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2018-07-24 15:02:04,422 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2018-07-24 15:02:05,644 WARN L169 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2018-07-24 15:02:06,127 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2018-07-24 15:02:06,653 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-07-24 15:02:07,445 WARN L169 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2018-07-24 15:02:08,320 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2018-07-24 15:02:13,387 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2018-07-24 15:02:14,003 WARN L169 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2018-07-24 15:02:14,329 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2018-07-24 15:02:20,236 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-07-24 15:02:20,498 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2018-07-24 15:02:20,772 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2018-07-24 15:02:20,984 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2018-07-24 15:02:27,081 WARN L169 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2018-07-24 15:02:28,530 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2018-07-24 15:02:40,577 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2018-07-24 15:02:44,359 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2018-07-24 15:02:45,746 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2018-07-24 15:02:47,558 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 28 [2018-07-24 15:02:48,581 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2018-07-24 15:02:51,183 WARN L169 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2018-07-24 15:02:55,645 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2018-07-24 15:02:58,506 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2018-07-24 15:03:01,892 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2018-07-24 15:03:13,301 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-07-24 15:03:14,222 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2018-07-24 15:03:15,568 WARN L169 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-07-24 15:03:16,424 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2018-07-24 15:03:23,383 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2018-07-24 15:03:24,824 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 Received shutdown request... [2018-07-24 15:03:25,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 348 states. [2018-07-24 15:03:25,141 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 15:03:25,145 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 15:03:25,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:03:25 BoogieIcfgContainer [2018-07-24 15:03:25,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 15:03:25,147 INFO L168 Benchmark]: Toolchain (without parser) took 234902.45 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -484.5 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-24 15:03:25,148 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 15:03:25,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1837.44 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: 180.0 MB). Peak memory consumption was 180.0 MB. Max. memory is 7.1 GB. [2018-07-24 15:03:25,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 178.12 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-24 15:03:25,150 INFO L168 Benchmark]: Boogie Preprocessor took 635.43 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 873.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-07-24 15:03:25,151 INFO L168 Benchmark]: RCFGBuilder took 8244.71 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 533.9 MB). Peak memory consumption was 533.9 MB. Max. memory is 7.1 GB. [2018-07-24 15:03:25,151 INFO L168 Benchmark]: TraceAbstraction took 224000.35 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -132.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 15:03:25,157 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1837.44 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: 180.0 MB). Peak memory consumption was 180.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 178.12 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 635.43 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 873.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8244.71 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 533.9 MB). Peak memory consumption was 533.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224000.35 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -132.0 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was constructing difference of abstraction (66933states) and interpolant automaton (currently 348 states, 29 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 372 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 223.9s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 196.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2747 SDtfs, 56233 SDslu, 5351 SDs, 0 SdLazy, 113507 SolverSat, 17940 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8237 GetRequests, 7734 SyntacticMatches, 30 SemanticMatches, 472 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61961 ImplicationChecksByTransitivity, 37.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66933occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 5762 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 7121 NumberOfCodeBlocks, 7121 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 10883 ConstructedInterpolants, 0 QuantifiedInterpolants, 33128152 SizeOfPredicates, 10 NumberOfNonLiveVariables, 5410 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 6425/8199 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label14_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_15-03-25-172.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label14_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_15-03-25-172.csv Completed graceful shutdown