java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 12:37:35,409 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:37:35,410 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:37:35,424 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:37:35,424 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:37:35,425 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:37:35,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:37:35,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:37:35,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:37:35,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:37:35,432 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:37:35,432 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:37:35,433 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:37:35,434 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:37:35,435 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:37:35,436 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:37:35,437 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:37:35,439 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:37:35,441 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:37:35,442 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:37:35,443 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:37:35,445 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:37:35,450 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:37:35,450 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:37:35,451 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:37:35,452 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:37:35,456 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:37:35,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:37:35,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:37:35,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:37:35,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:37:35,460 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:37:35,460 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:37:35,460 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:37:35,464 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:37:35,465 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:37:35,465 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 12:37:35,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:37:35,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:37:35,494 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:37:35,495 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:37:35,495 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:37:35,495 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:37:35,495 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:37:35,495 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:37:35,496 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:37:35,496 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:37:35,496 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:37:35,497 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:37:35,497 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:37:35,497 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:37:35,497 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:37:35,497 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:37:35,498 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:37:35,498 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:37:35,498 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:37:35,498 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:37:35,498 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:37:35,499 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:37:35,499 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:37:35,499 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:37:35,499 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:37:35,499 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:37:35,500 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:37:35,500 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:37:35,500 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:37:35,500 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:37:35,500 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:37:35,501 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:37:35,501 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:37:35,546 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:37:35,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:37:35,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:37:35,569 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:37:35,569 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:37:35,570 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c [2018-09-10 12:37:35,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ee4a421/3e9b2e9dacbb4c19a4f61405d9d26069/FLAGa1b64cb5a [2018-09-10 12:37:36,390 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:37:36,391 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c [2018-09-10 12:37:36,423 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ee4a421/3e9b2e9dacbb4c19a4f61405d9d26069/FLAGa1b64cb5a [2018-09-10 12:37:36,444 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ee4a421/3e9b2e9dacbb4c19a4f61405d9d26069 [2018-09-10 12:37:36,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:37:36,464 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:37:36,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:37:36,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:37:36,474 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:37:36,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:37:36" (1/1) ... [2018-09-10 12:37:36,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3d4853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:36, skipping insertion in model container [2018-09-10 12:37:36,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:37:36" (1/1) ... [2018-09-10 12:37:36,788 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:37:37,564 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:37:37,584 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:37:38,074 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:37:38,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38 WrapperNode [2018-09-10 12:37:38,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:37:38,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:37:38,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:37:38,227 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:37:38,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:38,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:38,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:37:38,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:37:38,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:37:38,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:37:38,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:38,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:38,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:38,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:38,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:39,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:39,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... [2018-09-10 12:37:39,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:37:39,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:37:39,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:37:39,130 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:37:39,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:37:39,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:37:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:37:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 12:37:39,205 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 12:37:39,205 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 12:37:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 12:37:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:37:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:37:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:37:39,206 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:37:39,206 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 12:37:39,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 12:37:48,131 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:37:48,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:37:48 BoogieIcfgContainer [2018-09-10 12:37:48,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:37:48,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:37:48,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:37:48,137 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:37:48,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:37:36" (1/3) ... [2018-09-10 12:37:48,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b960b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:37:48, skipping insertion in model container [2018-09-10 12:37:48,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:37:38" (2/3) ... [2018-09-10 12:37:48,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b960b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:37:48, skipping insertion in model container [2018-09-10 12:37:48,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:37:48" (3/3) ... [2018-09-10 12:37:48,141 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label37_true-unreach-call.c [2018-09-10 12:37:48,150 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:37:48,159 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:37:48,224 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:37:48,225 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:37:48,225 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:37:48,225 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:37:48,225 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:37:48,225 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:37:48,226 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:37:48,226 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:37:48,226 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:37:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-10 12:37:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-10 12:37:48,276 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:37:48,277 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:37:48,278 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:37:48,286 INFO L82 PathProgramCache]: Analyzing trace with hash 598658193, now seen corresponding path program 1 times [2018-09-10 12:37:48,289 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:37:48,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:37:48,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:37:48,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:37:48,346 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:37:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:37:48,767 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:37:48,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:37:48,889 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:37:48,890 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 12:37:48,890 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:37:48,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:37:48,912 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:37:48,912 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:37:48,915 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-09-10 12:37:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:37:55,485 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-09-10 12:37:55,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:37:55,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-09-10 12:37:55,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:37:55,522 INFO L225 Difference]: With dead ends: 2251 [2018-09-10 12:37:55,522 INFO L226 Difference]: Without dead ends: 1474 [2018-09-10 12:37:55,534 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:37:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-09-10 12:37:55,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-09-10 12:37:55,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-10 12:37:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-09-10 12:37:55,693 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 63 [2018-09-10 12:37:55,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:37:55,694 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-09-10 12:37:55,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:37:55,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-09-10 12:37:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-10 12:37:55,709 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:37:55,711 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:37:55,711 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:37:55,712 INFO L82 PathProgramCache]: Analyzing trace with hash -393635227, now seen corresponding path program 1 times [2018-09-10 12:37:55,712 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:37:55,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:37:55,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:37:55,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:37:55,714 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:37:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:37:56,178 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:37:56,179 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:37:56,179 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:37:56,179 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:37:56,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:37:56,181 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:37:56,182 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:37:56,182 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-09-10 12:38:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:38:12,606 INFO L93 Difference]: Finished difference Result 5908 states and 11488 transitions. [2018-09-10 12:38:12,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 12:38:12,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-09-10 12:38:12,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:38:12,643 INFO L225 Difference]: With dead ends: 5908 [2018-09-10 12:38:12,643 INFO L226 Difference]: Without dead ends: 4440 [2018-09-10 12:38:12,661 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:38:12,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4440 states. [2018-09-10 12:38:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4440 to 4400. [2018-09-10 12:38:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4400 states. [2018-09-10 12:38:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 6699 transitions. [2018-09-10 12:38:12,924 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 6699 transitions. Word has length 138 [2018-09-10 12:38:12,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:38:12,925 INFO L480 AbstractCegarLoop]: Abstraction has 4400 states and 6699 transitions. [2018-09-10 12:38:12,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:38:12,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 6699 transitions. [2018-09-10 12:38:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-09-10 12:38:12,931 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:38:12,932 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:38:12,932 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:38:12,932 INFO L82 PathProgramCache]: Analyzing trace with hash -2088818227, now seen corresponding path program 1 times [2018-09-10 12:38:12,932 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:38:12,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:12,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:12,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:12,934 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:38:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:13,167 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:38:13,167 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:38:13,167 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:38:13,167 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:38:13,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:38:13,168 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:38:13,169 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:38:13,169 INFO L87 Difference]: Start difference. First operand 4400 states and 6699 transitions. Second operand 6 states. [2018-09-10 12:38:22,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:38:22,964 INFO L93 Difference]: Finished difference Result 13327 states and 20920 transitions. [2018-09-10 12:38:22,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:38:22,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-09-10 12:38:22,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:38:23,014 INFO L225 Difference]: With dead ends: 13327 [2018-09-10 12:38:23,015 INFO L226 Difference]: Without dead ends: 8933 [2018-09-10 12:38:23,045 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:38:23,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8933 states. [2018-09-10 12:38:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8933 to 8830. [2018-09-10 12:38:23,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8830 states. [2018-09-10 12:38:23,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8830 states to 8830 states and 12821 transitions. [2018-09-10 12:38:23,298 INFO L78 Accepts]: Start accepts. Automaton has 8830 states and 12821 transitions. Word has length 158 [2018-09-10 12:38:23,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:38:23,301 INFO L480 AbstractCegarLoop]: Abstraction has 8830 states and 12821 transitions. [2018-09-10 12:38:23,301 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:38:23,301 INFO L276 IsEmpty]: Start isEmpty. Operand 8830 states and 12821 transitions. [2018-09-10 12:38:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-09-10 12:38:23,307 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:38:23,307 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:38:23,307 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:38:23,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1273142132, now seen corresponding path program 1 times [2018-09-10 12:38:23,308 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:38:23,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:23,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:23,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:23,313 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:38:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:23,623 WARN L175 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:38:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 112 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:38:23,752 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:38:23,752 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:38:23,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:23,767 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:38:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:23,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:38:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 12:38:24,125 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:38:24,483 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 112 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:38:24,518 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:38:24,518 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-10 12:38:24,518 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:38:24,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:38:24,519 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:38:24,520 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:38:24,520 INFO L87 Difference]: Start difference. First operand 8830 states and 12821 transitions. Second operand 5 states. [2018-09-10 12:38:32,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:38:32,404 INFO L93 Difference]: Finished difference Result 24530 states and 38098 transitions. [2018-09-10 12:38:32,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:38:32,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2018-09-10 12:38:32,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:38:32,504 INFO L225 Difference]: With dead ends: 24530 [2018-09-10 12:38:32,504 INFO L226 Difference]: Without dead ends: 15706 [2018-09-10 12:38:32,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 411 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:38:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15706 states. [2018-09-10 12:38:32,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15706 to 15510. [2018-09-10 12:38:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15510 states. [2018-09-10 12:38:32,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15510 states to 15510 states and 20796 transitions. [2018-09-10 12:38:32,969 INFO L78 Accepts]: Start accepts. Automaton has 15510 states and 20796 transitions. Word has length 208 [2018-09-10 12:38:32,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:38:32,970 INFO L480 AbstractCegarLoop]: Abstraction has 15510 states and 20796 transitions. [2018-09-10 12:38:32,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:38:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 15510 states and 20796 transitions. [2018-09-10 12:38:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-09-10 12:38:32,983 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:38:32,984 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-10 12:38:32,984 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:38:32,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1789129464, now seen corresponding path program 1 times [2018-09-10 12:38:32,985 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:38:32,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:32,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:32,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:32,986 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:38:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:33,579 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 245 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-09-10 12:38:33,580 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:38:33,580 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:38:33,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:33,597 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:38:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:33,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:38:34,019 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 12:38:34,019 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:38:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 245 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-09-10 12:38:34,316 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:38:34,316 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:38:34,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:34,336 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:38:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:34,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:38:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 332 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 12:38:34,881 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:38:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 245 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-09-10 12:38:35,456 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:38:35,456 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 12:38:35,457 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:38:35,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:38:35,458 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:38:35,458 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:38:35,458 INFO L87 Difference]: Start difference. First operand 15510 states and 20796 transitions. Second operand 9 states. [2018-09-10 12:38:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:38:48,663 INFO L93 Difference]: Finished difference Result 62656 states and 99940 transitions. [2018-09-10 12:38:48,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-10 12:38:48,664 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 335 [2018-09-10 12:38:48,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:38:48,959 INFO L225 Difference]: With dead ends: 62656 [2018-09-10 12:38:48,960 INFO L226 Difference]: Without dead ends: 36054 [2018-09-10 12:38:49,277 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1362 GetRequests, 1339 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-10 12:38:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36054 states. [2018-09-10 12:38:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36054 to 34962. [2018-09-10 12:38:50,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34962 states. [2018-09-10 12:38:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34962 states to 34962 states and 44229 transitions. [2018-09-10 12:38:50,500 INFO L78 Accepts]: Start accepts. Automaton has 34962 states and 44229 transitions. Word has length 335 [2018-09-10 12:38:50,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:38:50,501 INFO L480 AbstractCegarLoop]: Abstraction has 34962 states and 44229 transitions. [2018-09-10 12:38:50,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:38:50,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34962 states and 44229 transitions. [2018-09-10 12:38:50,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-09-10 12:38:50,520 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:38:50,521 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-09-10 12:38:50,521 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:38:50,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1653105373, now seen corresponding path program 1 times [2018-09-10 12:38:50,522 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:38:50,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:50,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:50,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:38:50,523 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:38:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:38:51,393 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:38:51,393 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:38:51,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:51,407 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:38:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:51,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:38:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:38:51,979 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:38:52,562 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:38:52,582 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:38:52,583 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:38:52,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:38:52,612 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:38:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:38:52,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:38:52,978 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:38:52,978 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:38:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:38:53,239 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:38:53,239 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-10 12:38:53,239 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:38:53,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:38:53,241 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:38:53,241 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:38:53,241 INFO L87 Difference]: Start difference. First operand 34962 states and 44229 transitions. Second operand 9 states. [2018-09-10 12:39:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:39:03,982 INFO L93 Difference]: Finished difference Result 93371 states and 161271 transitions. [2018-09-10 12:39:03,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 12:39:03,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 380 [2018-09-10 12:39:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:39:04,594 INFO L225 Difference]: With dead ends: 93371 [2018-09-10 12:39:04,594 INFO L226 Difference]: Without dead ends: 58420 [2018-09-10 12:39:05,456 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1542 GetRequests, 1518 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-10 12:39:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58420 states. [2018-09-10 12:39:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58420 to 54213. [2018-09-10 12:39:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54213 states. [2018-09-10 12:39:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54213 states to 54213 states and 82422 transitions. [2018-09-10 12:39:07,682 INFO L78 Accepts]: Start accepts. Automaton has 54213 states and 82422 transitions. Word has length 380 [2018-09-10 12:39:07,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:39:07,683 INFO L480 AbstractCegarLoop]: Abstraction has 54213 states and 82422 transitions. [2018-09-10 12:39:07,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:39:07,683 INFO L276 IsEmpty]: Start isEmpty. Operand 54213 states and 82422 transitions. [2018-09-10 12:39:07,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2018-09-10 12:39:07,695 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:39:07,696 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:39:07,696 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:39:07,697 INFO L82 PathProgramCache]: Analyzing trace with hash -827342335, now seen corresponding path program 1 times [2018-09-10 12:39:07,697 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:39:07,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:07,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:07,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:07,698 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:39:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 79 proven. 290 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 12:39:08,236 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:39:08,236 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:39:08,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:08,248 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:39:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:08,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:39:08,520 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-09-10 12:39:08,520 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:39:08,712 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-09-10 12:39:08,735 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 12:39:08,736 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-09-10 12:39:08,736 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:39:08,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:39:08,736 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:39:08,737 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:39:08,737 INFO L87 Difference]: Start difference. First operand 54213 states and 82422 transitions. Second operand 3 states. [2018-09-10 12:39:14,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:39:14,088 INFO L93 Difference]: Finished difference Result 112576 states and 167345 transitions. [2018-09-10 12:39:14,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:39:14,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 382 [2018-09-10 12:39:14,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:39:14,482 INFO L225 Difference]: With dead ends: 112576 [2018-09-10 12:39:14,483 INFO L226 Difference]: Without dead ends: 59863 [2018-09-10 12:39:14,948 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 765 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:39:15,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59863 states. [2018-09-10 12:39:16,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59863 to 59271. [2018-09-10 12:39:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59271 states. [2018-09-10 12:39:17,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59271 states to 59271 states and 76524 transitions. [2018-09-10 12:39:17,601 INFO L78 Accepts]: Start accepts. Automaton has 59271 states and 76524 transitions. Word has length 382 [2018-09-10 12:39:17,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:39:17,602 INFO L480 AbstractCegarLoop]: Abstraction has 59271 states and 76524 transitions. [2018-09-10 12:39:17,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:39:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 59271 states and 76524 transitions. [2018-09-10 12:39:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2018-09-10 12:39:17,659 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:39:17,659 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-09-10 12:39:17,660 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:39:17,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1736497798, now seen corresponding path program 1 times [2018-09-10 12:39:17,660 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:39:17,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:17,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:17,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:17,662 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:39:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:18,127 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 340 proven. 190 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2018-09-10 12:39:18,128 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:39:18,128 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:39:18,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:18,136 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:39:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:18,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:39:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 604 proven. 2 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2018-09-10 12:39:18,510 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:39:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 340 proven. 190 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2018-09-10 12:39:18,801 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:39:18,801 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:39:18,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:18,819 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:39:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:19,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:39:19,349 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 604 proven. 2 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2018-09-10 12:39:19,350 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:39:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 340 proven. 190 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2018-09-10 12:39:19,696 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:39:19,697 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-09-10 12:39:19,697 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:39:19,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:39:19,699 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:39:19,699 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:39:19,699 INFO L87 Difference]: Start difference. First operand 59271 states and 76524 transitions. Second operand 9 states. [2018-09-10 12:39:29,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:39:29,304 INFO L93 Difference]: Finished difference Result 131561 states and 178775 transitions. [2018-09-10 12:39:29,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-10 12:39:29,305 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 488 [2018-09-10 12:39:29,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:39:29,681 INFO L225 Difference]: With dead ends: 131561 [2018-09-10 12:39:29,681 INFO L226 Difference]: Without dead ends: 73790 [2018-09-10 12:39:29,957 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1968 GetRequests, 1947 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2018-09-10 12:39:30,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73790 states. [2018-09-10 12:39:32,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73790 to 73001. [2018-09-10 12:39:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73001 states. [2018-09-10 12:39:32,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73001 states to 73001 states and 95894 transitions. [2018-09-10 12:39:32,640 INFO L78 Accepts]: Start accepts. Automaton has 73001 states and 95894 transitions. Word has length 488 [2018-09-10 12:39:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:39:32,640 INFO L480 AbstractCegarLoop]: Abstraction has 73001 states and 95894 transitions. [2018-09-10 12:39:32,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:39:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 73001 states and 95894 transitions. [2018-09-10 12:39:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2018-09-10 12:39:32,670 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:39:32,671 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2018-09-10 12:39:32,671 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:39:32,671 INFO L82 PathProgramCache]: Analyzing trace with hash -338864108, now seen corresponding path program 1 times [2018-09-10 12:39:32,671 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:39:32,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:32,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:32,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:32,672 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:39:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 268 proven. 208 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:39:33,773 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:39:33,773 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:39:33,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:33,783 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:39:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:33,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:39:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:39:34,118 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:39:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:39:34,365 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:39:34,365 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:39:34,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:34,382 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:39:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:34,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:39:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:39:34,878 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:39:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 359 proven. 2 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 12:39:35,914 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:39:35,915 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5, 5, 5] total 19 [2018-09-10 12:39:35,915 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:39:35,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-10 12:39:35,917 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-10 12:39:35,917 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2018-09-10 12:39:35,918 INFO L87 Difference]: Start difference. First operand 73001 states and 95894 transitions. Second operand 13 states. [2018-09-10 12:39:49,296 WARN L175 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17 [2018-09-10 12:40:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:04,494 INFO L93 Difference]: Finished difference Result 133645 states and 174983 transitions. [2018-09-10 12:40:04,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2018-09-10 12:40:04,494 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 505 [2018-09-10 12:40:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:04,660 INFO L225 Difference]: With dead ends: 133645 [2018-09-10 12:40:04,661 INFO L226 Difference]: Without dead ends: 55094 [2018-09-10 12:40:04,895 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2185 GetRequests, 2077 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3923 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1754, Invalid=9588, Unknown=0, NotChecked=0, Total=11342 [2018-09-10 12:40:04,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55094 states. [2018-09-10 12:40:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55094 to 48232. [2018-09-10 12:40:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48232 states. [2018-09-10 12:40:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48232 states to 48232 states and 52009 transitions. [2018-09-10 12:40:05,720 INFO L78 Accepts]: Start accepts. Automaton has 48232 states and 52009 transitions. Word has length 505 [2018-09-10 12:40:05,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:05,721 INFO L480 AbstractCegarLoop]: Abstraction has 48232 states and 52009 transitions. [2018-09-10 12:40:05,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-10 12:40:05,722 INFO L276 IsEmpty]: Start isEmpty. Operand 48232 states and 52009 transitions. [2018-09-10 12:40:05,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2018-09-10 12:40:05,744 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:05,745 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2018-09-10 12:40:05,745 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:05,746 INFO L82 PathProgramCache]: Analyzing trace with hash -882677752, now seen corresponding path program 1 times [2018-09-10 12:40:05,746 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:05,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:05,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:05,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:05,748 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 294 proven. 94 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-10 12:40:06,673 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:06,673 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:40:06,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:06,688 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:06,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 422 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 12:40:07,720 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:08,118 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 294 proven. 94 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-10 12:40:08,139 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:08,139 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:40:08,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:08,156 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:08,527 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:08,782 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 422 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 12:40:08,783 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:09,262 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 294 proven. 94 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-10 12:40:09,265 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:40:09,265 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-10 12:40:09,265 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:40:09,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:40:09,266 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:40:09,267 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:40:09,267 INFO L87 Difference]: Start difference. First operand 48232 states and 52009 transitions. Second operand 9 states. [2018-09-10 12:40:20,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:20,789 INFO L93 Difference]: Finished difference Result 137374 states and 154503 transitions. [2018-09-10 12:40:20,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 12:40:20,790 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 559 [2018-09-10 12:40:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:20,955 INFO L225 Difference]: With dead ends: 137374 [2018-09-10 12:40:20,955 INFO L226 Difference]: Without dead ends: 89153 [2018-09-10 12:40:21,014 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2258 GetRequests, 2235 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-10 12:40:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89153 states. [2018-09-10 12:40:21,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89153 to 88477. [2018-09-10 12:40:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88477 states. [2018-09-10 12:40:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88477 states to 88477 states and 98111 transitions. [2018-09-10 12:40:22,107 INFO L78 Accepts]: Start accepts. Automaton has 88477 states and 98111 transitions. Word has length 559 [2018-09-10 12:40:22,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:22,108 INFO L480 AbstractCegarLoop]: Abstraction has 88477 states and 98111 transitions. [2018-09-10 12:40:22,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:40:22,108 INFO L276 IsEmpty]: Start isEmpty. Operand 88477 states and 98111 transitions. [2018-09-10 12:40:22,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2018-09-10 12:40:22,141 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:22,141 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:40:22,141 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:22,142 INFO L82 PathProgramCache]: Analyzing trace with hash -557519692, now seen corresponding path program 1 times [2018-09-10 12:40:22,142 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:22,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:22,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:22,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:22,143 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:22,619 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 168 proven. 208 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-09-10 12:40:22,620 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:22,620 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:40:22,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:22,627 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:22,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:23,553 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2018-09-10 12:40:23,553 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:24,024 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 168 proven. 142 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-09-10 12:40:24,045 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:40:24,045 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 9 [2018-09-10 12:40:24,046 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:24,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:40:24,047 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:40:24,047 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:40:24,047 INFO L87 Difference]: Start difference. First operand 88477 states and 98111 transitions. Second operand 3 states. [2018-09-10 12:40:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:28,872 INFO L93 Difference]: Finished difference Result 193602 states and 215961 transitions. [2018-09-10 12:40:28,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:40:28,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 715 [2018-09-10 12:40:28,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:29,147 INFO L225 Difference]: With dead ends: 193602 [2018-09-10 12:40:29,147 INFO L226 Difference]: Without dead ends: 102599 [2018-09-10 12:40:29,308 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1437 GetRequests, 1429 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-09-10 12:40:29,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102599 states. [2018-09-10 12:40:30,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102599 to 102589. [2018-09-10 12:40:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102589 states. [2018-09-10 12:40:30,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102589 states to 102589 states and 112659 transitions. [2018-09-10 12:40:30,802 INFO L78 Accepts]: Start accepts. Automaton has 102589 states and 112659 transitions. Word has length 715 [2018-09-10 12:40:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:30,803 INFO L480 AbstractCegarLoop]: Abstraction has 102589 states and 112659 transitions. [2018-09-10 12:40:30,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:40:30,803 INFO L276 IsEmpty]: Start isEmpty. Operand 102589 states and 112659 transitions. [2018-09-10 12:40:30,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1021 [2018-09-10 12:40:30,899 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:30,900 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:40:30,900 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:30,901 INFO L82 PathProgramCache]: Analyzing trace with hash -718747024, now seen corresponding path program 1 times [2018-09-10 12:40:30,901 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:30,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:30,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:30,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:30,902 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:31,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 789 proven. 94 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-09-10 12:40:32,463 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:32,463 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:40:32,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:32,472 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:32,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:35,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 1007 proven. 2 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-10 12:40:35,960 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 789 proven. 94 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-09-10 12:40:36,697 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:36,697 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:40:36,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:36,712 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:37,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 1007 proven. 2 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-10 12:40:38,027 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:38,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 789 proven. 94 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2018-09-10 12:40:38,781 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:40:38,782 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 12:40:38,782 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:40:38,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:40:38,783 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:40:38,783 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:40:38,783 INFO L87 Difference]: Start difference. First operand 102589 states and 112659 transitions. Second operand 9 states. [2018-09-10 12:40:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:47,841 INFO L93 Difference]: Finished difference Result 204737 states and 222764 transitions. [2018-09-10 12:40:47,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-10 12:40:47,841 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1020 [2018-09-10 12:40:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:48,059 INFO L225 Difference]: With dead ends: 204737 [2018-09-10 12:40:48,060 INFO L226 Difference]: Without dead ends: 102862 [2018-09-10 12:40:48,202 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4098 GetRequests, 4077 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-09-10 12:40:48,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102862 states. [2018-09-10 12:40:49,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102862 to 95635. [2018-09-10 12:40:49,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95635 states. [2018-09-10 12:40:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95635 states to 95635 states and 101525 transitions. [2018-09-10 12:40:49,373 INFO L78 Accepts]: Start accepts. Automaton has 95635 states and 101525 transitions. Word has length 1020 [2018-09-10 12:40:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:49,373 INFO L480 AbstractCegarLoop]: Abstraction has 95635 states and 101525 transitions. [2018-09-10 12:40:49,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:40:49,374 INFO L276 IsEmpty]: Start isEmpty. Operand 95635 states and 101525 transitions. [2018-09-10 12:40:49,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1558 [2018-09-10 12:40:49,437 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:49,438 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 12:40:49,439 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:49,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1468248282, now seen corresponding path program 1 times [2018-09-10 12:40:49,440 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:49,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:49,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:49,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:49,441 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:51,092 WARN L175 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-10 12:40:51,335 WARN L175 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-10 12:40:57,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 372 proven. 1615 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-09-10 12:40:57,026 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:57,026 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 12:40:57,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:57,036 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:57,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:59,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 1572 proven. 2 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-09-10 12:40:59,354 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 550 proven. 217 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2018-09-10 12:41:01,961 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:01,961 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 12:41:01,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:01,977 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:03,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 1566 proven. 8 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2018-09-10 12:41:04,660 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:09,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 302 proven. 1376 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2018-09-10 12:41:09,074 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:41:09,075 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 5, 5, 8, 8] total 37 [2018-09-10 12:41:09,075 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:41:09,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-10 12:41:09,077 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-10 12:41:09,078 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1150, Unknown=0, NotChecked=0, Total=1332 [2018-09-10 12:41:09,078 INFO L87 Difference]: Start difference. First operand 95635 states and 101525 transitions. Second operand 28 states. [2018-09-10 12:41:16,559 WARN L175 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 Received shutdown request... [2018-09-10 12:41:18,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-10 12:41:18,600 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:41:18,606 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:41:18,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:41:18 BoogieIcfgContainer [2018-09-10 12:41:18,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:41:18,607 INFO L168 Benchmark]: Toolchain (without parser) took 222147.87 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 4.1 GB in the end (delta: -2.7 GB). Peak memory consumption was 602.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:41:18,608 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 12:41:18,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1760.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:41:18,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 188.45 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. [2018-09-10 12:41:18,610 INFO L168 Benchmark]: Boogie Preprocessor took 713.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:41:18,611 INFO L168 Benchmark]: RCFGBuilder took 9003.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 545.2 MB). Peak memory consumption was 545.2 MB. Max. memory is 7.1 GB. [2018-09-10 12:41:18,612 INFO L168 Benchmark]: TraceAbstraction took 210473.29 ms. Allocated memory was 2.4 GB in the beginning and 4.8 GB in the end (delta: 2.4 GB). Free memory was 1.7 GB in the beginning and 4.1 GB in the end (delta: -2.4 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2018-09-10 12:41:18,616 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1760.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 188.45 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 713.98 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 844.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9003.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 545.2 MB). Peak memory consumption was 545.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210473.29 ms. Allocated memory was 2.4 GB in the beginning and 4.8 GB in the end (delta: 2.4 GB). Free memory was 1.7 GB in the beginning and 4.1 GB in the end (delta: -2.4 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 177]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 177). Cancelled while BasicCegarLoop was constructing difference of abstraction (95635states) and FLOYD_HOARE automaton (currently 30 states, 28 states before enhancement), while ReachableStatesComputation was computing reachable states (1743 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 210.3s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 148.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1814 SDtfs, 65272 SDslu, 2953 SDs, 0 SdLazy, 91005 SolverSat, 17624 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22373 GetRequests, 22022 SyntacticMatches, 54 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5573 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102589occurred in iteration=11, 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: 14.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 21794 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 32.9s InterpolantComputationTime, 17501 NumberOfCodeBlocks, 17501 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 28447 ConstructedInterpolants, 0 QuantifiedInterpolants, 93702495 SizeOfPredicates, 14 NumberOfNonLiveVariables, 15358 ConjunctsInSsa, 139 ConjunctsInUnsatCore, 47 InterpolantComputations, 7 PerfectInterpolantSequences, 28117/33700 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_label37_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_12-41-18-627.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label37_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_12-41-18-627.csv Completed graceful shutdown