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/Problem16_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-07 12:51:30,328 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-07 12:51:30,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-07 12:51:30,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-07 12:51:30,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-07 12:51:30,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-07 12:51:30,349 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-07 12:51:30,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-07 12:51:30,352 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-07 12:51:30,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-07 12:51:30,354 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-07 12:51:30,354 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-07 12:51:30,355 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-07 12:51:30,356 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-07 12:51:30,357 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-07 12:51:30,358 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-07 12:51:30,359 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-07 12:51:30,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-07 12:51:30,363 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-07 12:51:30,364 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-07 12:51:30,365 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-07 12:51:30,366 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-07 12:51:30,369 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-07 12:51:30,369 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-07 12:51:30,369 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-07 12:51:30,370 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-07 12:51:30,371 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-07 12:51:30,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-07 12:51:30,373 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-07 12:51:30,374 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-07 12:51:30,374 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-07 12:51:30,375 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-07 12:51:30,375 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-07 12:51:30,375 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-07 12:51:30,376 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-07 12:51:30,377 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-07 12:51:30,377 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-08-07 12:51:30,394 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-07 12:51:30,394 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-07 12:51:30,395 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-07 12:51:30,395 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-07 12:51:30,395 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-07 12:51:30,395 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-07 12:51:30,396 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-07 12:51:30,396 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-07 12:51:30,396 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-07 12:51:30,396 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-07 12:51:30,396 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-07 12:51:30,398 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-07 12:51:30,398 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-07 12:51:30,398 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-07 12:51:30,398 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-07 12:51:30,398 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-07 12:51:30,399 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-07 12:51:30,399 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-07 12:51:30,399 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-07 12:51:30,399 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-07 12:51:30,401 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-07 12:51:30,401 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-07 12:51:30,401 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-07 12:51:30,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 12:51:30,401 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-07 12:51:30,402 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-07 12:51:30,402 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-07 12:51:30,402 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-08-07 12:51:30,402 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-07 12:51:30,402 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-07 12:51:30,402 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-07 12:51:30,403 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-07 12:51:30,403 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-07 12:51:30,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-07 12:51:30,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-07 12:51:30,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-07 12:51:30,482 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-07 12:51:30,483 INFO L276 PluginConnector]: CDTParser initialized [2018-08-07 12:51:30,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-08-07 12:51:30,828 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1423370/3a218ffc76834b7887a5465f9f776d8f/FLAG8a28018fd [2018-08-07 12:51:31,203 INFO L276 CDTParser]: Found 1 translation units. [2018-08-07 12:51:31,207 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-08-07 12:51:31,240 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1423370/3a218ffc76834b7887a5465f9f776d8f/FLAG8a28018fd [2018-08-07 12:51:31,262 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a1423370/3a218ffc76834b7887a5465f9f776d8f [2018-08-07 12:51:31,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-07 12:51:31,274 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-07 12:51:31,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-07 12:51:31,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-07 12:51:31,282 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-07 12:51:31,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 12:51:31" (1/1) ... [2018-08-07 12:51:31,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274a6f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:31, skipping insertion in model container [2018-08-07 12:51:31,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 12:51:31" (1/1) ... [2018-08-07 12:51:31,507 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-07 12:51:32,024 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 12:51:32,042 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-07 12:51:32,331 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 12:51:32,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32 WrapperNode [2018-08-07 12:51:32,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-07 12:51:32,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-07 12:51:32,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-07 12:51:32,444 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-07 12:51:32,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:32,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:32,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-07 12:51:32,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-07 12:51:32,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-07 12:51:32,629 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-07 12:51:32,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:32,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:32,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:32,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:33,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:33,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:33,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... [2018-08-07 12:51:33,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-07 12:51:33,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-07 12:51:33,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-07 12:51:33,109 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-07 12:51:33,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 12:51:33,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-07 12:51:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-07 12:51:33,196 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-07 12:51:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-07 12:51:33,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-07 12:51:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-07 12:51:33,196 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-07 12:51:33,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-07 12:51:33,197 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-07 12:51:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-07 12:51:40,264 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-07 12:51:40,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 12:51:40 BoogieIcfgContainer [2018-08-07 12:51:40,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-07 12:51:40,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-07 12:51:40,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-07 12:51:40,271 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-07 12:51:40,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 12:51:31" (1/3) ... [2018-08-07 12:51:40,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222c716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 12:51:40, skipping insertion in model container [2018-08-07 12:51:40,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 12:51:32" (2/3) ... [2018-08-07 12:51:40,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222c716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 12:51:40, skipping insertion in model container [2018-08-07 12:51:40,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 12:51:40" (3/3) ... [2018-08-07 12:51:40,276 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label02_true-unreach-call.c [2018-08-07 12:51:40,286 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-07 12:51:40,295 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-07 12:51:40,354 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-07 12:51:40,355 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-07 12:51:40,355 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-07 12:51:40,355 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-07 12:51:40,355 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-07 12:51:40,355 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-07 12:51:40,356 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-07 12:51:40,356 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-07 12:51:40,356 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-07 12:51:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-08-07 12:51:40,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-08-07 12:51:40,399 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:51:40,401 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:51:40,402 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]=== [2018-08-07 12:51:40,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1490938180, now seen corresponding path program 1 times [2018-08-07 12:51:40,414 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:51:40,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:51:40,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:51:40,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:51:40,468 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:51:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:51:40,898 WARN L170 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 12:51:40,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:51:40,982 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:51:40,982 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-07 12:51:40,983 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:51:40,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 12:51:41,004 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 12:51:41,005 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-07 12:51:41,007 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-08-07 12:51:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:51:45,260 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-08-07 12:51:45,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 12:51:45,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-08-07 12:51:45,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:51:45,287 INFO L225 Difference]: With dead ends: 1156 [2018-08-07 12:51:45,288 INFO L226 Difference]: Without dead ends: 744 [2018-08-07 12:51:45,296 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-07 12:51:45,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-08-07 12:51:45,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-08-07 12:51:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-08-07 12:51:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-08-07 12:51:45,414 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 68 [2018-08-07 12:51:45,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:51:45,415 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-08-07 12:51:45,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 12:51:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-08-07 12:51:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-08-07 12:51:45,424 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:51:45,425 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:51:45,425 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]=== [2018-08-07 12:51:45,426 INFO L82 PathProgramCache]: Analyzing trace with hash -973705634, now seen corresponding path program 1 times [2018-08-07 12:51:45,426 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:51:45,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:51:45,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:51:45,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:51:45,428 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:51:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:51:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:51:45,731 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:51:45,731 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 12:51:45,732 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:51:45,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 12:51:45,734 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 12:51:45,734 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 12:51:45,735 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-08-07 12:51:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:51:56,569 INFO L93 Difference]: Finished difference Result 2840 states and 5175 transitions. [2018-08-07 12:51:56,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 12:51:56,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-08-07 12:51:56,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:51:56,594 INFO L225 Difference]: With dead ends: 2840 [2018-08-07 12:51:56,594 INFO L226 Difference]: Without dead ends: 2102 [2018-08-07 12:51:56,601 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-08-07 12:51:56,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2018-08-07 12:51:56,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 2081. [2018-08-07 12:51:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2081 states. [2018-08-07 12:51:56,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 3314 transitions. [2018-08-07 12:51:56,701 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 3314 transitions. Word has length 144 [2018-08-07 12:51:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:51:56,702 INFO L480 AbstractCegarLoop]: Abstraction has 2081 states and 3314 transitions. [2018-08-07 12:51:56,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 12:51:56,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 3314 transitions. [2018-08-07 12:51:56,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-08-07 12:51:56,715 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:51:56,715 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:51:56,717 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]=== [2018-08-07 12:51:56,717 INFO L82 PathProgramCache]: Analyzing trace with hash -2136345998, now seen corresponding path program 1 times [2018-08-07 12:51:56,717 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:51:56,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:51:56,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:51:56,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:51:56,719 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:51:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:51:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:51:56,963 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:51:56,964 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 12:51:56,964 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:51:56,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 12:51:56,965 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 12:51:56,965 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 12:51:56,965 INFO L87 Difference]: Start difference. First operand 2081 states and 3314 transitions. Second operand 6 states. [2018-08-07 12:52:02,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:52:02,573 INFO L93 Difference]: Finished difference Result 4872 states and 7871 transitions. [2018-08-07 12:52:02,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 12:52:02,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-08-07 12:52:02,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:52:02,592 INFO L225 Difference]: With dead ends: 4872 [2018-08-07 12:52:02,593 INFO L226 Difference]: Without dead ends: 2797 [2018-08-07 12:52:02,603 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-08-07 12:52:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2018-08-07 12:52:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2772. [2018-08-07 12:52:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2772 states. [2018-08-07 12:52:02,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2772 states to 2772 states and 4110 transitions. [2018-08-07 12:52:02,693 INFO L78 Accepts]: Start accepts. Automaton has 2772 states and 4110 transitions. Word has length 150 [2018-08-07 12:52:02,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:52:02,694 INFO L480 AbstractCegarLoop]: Abstraction has 2772 states and 4110 transitions. [2018-08-07 12:52:02,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 12:52:02,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2772 states and 4110 transitions. [2018-08-07 12:52:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-08-07 12:52:02,701 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:52:02,702 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:52:02,702 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]=== [2018-08-07 12:52:02,702 INFO L82 PathProgramCache]: Analyzing trace with hash 592176149, now seen corresponding path program 1 times [2018-08-07 12:52:02,702 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:52:02,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:52:02,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:52:02,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:52:02,705 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:52:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:52:02,967 WARN L170 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 12:52:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:52:03,313 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:52:03,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 12:52:03,313 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:52:03,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 12:52:03,314 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 12:52:03,314 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 12:52:03,315 INFO L87 Difference]: Start difference. First operand 2772 states and 4110 transitions. Second operand 6 states. [2018-08-07 12:52:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:52:09,224 INFO L93 Difference]: Finished difference Result 7308 states and 11391 transitions. [2018-08-07 12:52:09,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 12:52:09,224 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2018-08-07 12:52:09,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:52:09,251 INFO L225 Difference]: With dead ends: 7308 [2018-08-07 12:52:09,252 INFO L226 Difference]: Without dead ends: 4542 [2018-08-07 12:52:09,261 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-08-07 12:52:09,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4542 states. [2018-08-07 12:52:09,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4542 to 4517. [2018-08-07 12:52:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4517 states. [2018-08-07 12:52:09,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6580 transitions. [2018-08-07 12:52:09,401 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6580 transitions. Word has length 153 [2018-08-07 12:52:09,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:52:09,403 INFO L480 AbstractCegarLoop]: Abstraction has 4517 states and 6580 transitions. [2018-08-07 12:52:09,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 12:52:09,403 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6580 transitions. [2018-08-07 12:52:09,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-08-07 12:52:09,407 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:52:09,407 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:52:09,407 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]=== [2018-08-07 12:52:09,408 INFO L82 PathProgramCache]: Analyzing trace with hash 391449898, now seen corresponding path program 1 times [2018-08-07 12:52:09,408 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:52:09,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:52:09,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:52:09,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:52:09,409 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:52:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:52:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:52:09,685 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 12:52:09,685 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 12:52:09,685 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 12:52:09,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 12:52:09,686 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 12:52:09,686 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 12:52:09,687 INFO L87 Difference]: Start difference. First operand 4517 states and 6580 transitions. Second operand 6 states. [2018-08-07 12:52:12,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 12:52:12,716 INFO L93 Difference]: Finished difference Result 9751 states and 14295 transitions. [2018-08-07 12:52:12,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 12:52:12,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-08-07 12:52:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 12:52:12,739 INFO L225 Difference]: With dead ends: 9751 [2018-08-07 12:52:12,739 INFO L226 Difference]: Without dead ends: 5240 [2018-08-07 12:52:12,754 INFO L603 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 [2018-08-07 12:52:12,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2018-08-07 12:52:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 5226. [2018-08-07 12:52:12,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5226 states. [2018-08-07 12:52:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 6956 transitions. [2018-08-07 12:52:12,878 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 6956 transitions. Word has length 154 [2018-08-07 12:52:12,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 12:52:12,879 INFO L480 AbstractCegarLoop]: Abstraction has 5226 states and 6956 transitions. [2018-08-07 12:52:12,879 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 12:52:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 6956 transitions. [2018-08-07 12:52:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-08-07 12:52:12,882 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 12:52:12,882 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 12:52:12,882 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]=== [2018-08-07 12:52:12,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1995777730, now seen corresponding path program 1 times [2018-08-07 12:52:12,883 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 12:52:12,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:52:12,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:52:12,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 12:52:12,884 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 12:52:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:52:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:52:13,305 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:52:13,305 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-08-07 12:52:13,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:52:13,313 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:52:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:52:13,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:52:18,077 WARN L170 SmtUtils]: Spent 4.25 s on a formula simplification that was a NOOP. DAG size: 46 [2018-08-07 12:52:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:52:18,305 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:52:19,137 WARN L170 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 27 [2018-08-07 12:52:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:52:19,607 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 12:52:19,608 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-08-07 12:52:19,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 12:52:19,633 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 12:52:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 12:52:19,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 12:52:28,000 WARN L170 SmtUtils]: Spent 6.08 s on a formula simplification that was a NOOP. DAG size: 46 [2018-08-07 12:52:42,268 WARN L170 SmtUtils]: Spent 8.05 s on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-08-07 12:52:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:52:42,449 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 12:52:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 12:52:42,914 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 12:52:42,914 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6, 7, 6] total 15 [2018-08-07 12:52:42,915 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 12:52:42,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-07 12:52:42,915 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-07 12:52:42,916 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=155, Unknown=4, NotChecked=0, Total=210 [2018-08-07 12:52:42,916 INFO L87 Difference]: Start difference. First operand 5226 states and 6956 transitions. Second operand 10 states. [2018-08-07 12:52:57,808 WARN L170 SmtUtils]: Spent 10.19 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2018-08-07 12:53:32,788 WARN L170 SmtUtils]: Spent 6.10 s on a formula simplification that was a NOOP. DAG size: 49 Received shutdown request... [2018-08-07 12:56:02,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-08-07 12:56:02,460 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-07 12:56:02,465 WARN L202 ceAbstractionStarter]: Timeout [2018-08-07 12:56:02,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 12:56:02 BoogieIcfgContainer [2018-08-07 12:56:02,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-07 12:56:02,466 INFO L168 Benchmark]: Toolchain (without parser) took 271193.99 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -306.4 MB). Peak memory consumption was 829.2 MB. Max. memory is 7.1 GB. [2018-08-07 12:56:02,467 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-07 12:56:02,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1168.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-08-07 12:56:02,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-08-07 12:56:02,470 INFO L168 Benchmark]: Boogie Preprocessor took 479.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -933.4 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2018-08-07 12:56:02,471 INFO L168 Benchmark]: RCFGBuilder took 7156.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 289.1 MB). Peak memory consumption was 289.1 MB. Max. memory is 7.1 GB. [2018-08-07 12:56:02,471 INFO L168 Benchmark]: TraceAbstraction took 262199.78 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 355.5 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 211.0 MB). Peak memory consumption was 566.5 MB. Max. memory is 7.1 GB. [2018-08-07 12:56:02,477 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1168.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 184.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 479.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -933.4 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7156.08 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 289.1 MB). Peak memory consumption was 289.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 262199.78 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 355.5 MB). Free memory was 1.9 GB in the beginning and 1.7 GB in the end (delta: 211.0 MB). Peak memory consumption was 566.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (5226states) and FLOYD_HOARE automaton (currently 27 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (10541 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 262.1s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 229.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 641 SDtfs, 11299 SDslu, 833 SDs, 0 SdLazy, 15130 SolverSat, 4107 SolverUnsat, 78 SolverUnknown, 0 SolverNotchecked, 190.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 711 GetRequests, 637 SyntacticMatches, 13 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 62.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5226occurred in iteration=5, 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: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 85 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 31.2s InterpolantComputationTime, 1149 NumberOfCodeBlocks, 1149 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1459 ConstructedInterpolants, 199 QuantifiedInterpolants, 1745593 SizeOfPredicates, 6 NumberOfNonLiveVariables, 610 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 244/549 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/Problem16_label02_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-07_12-56-02-493.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label02_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-07_12-56-02-493.csv Completed graceful shutdown