java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:56:30,419 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:56:30,425 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:56:30,437 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:56:30,438 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:56:30,439 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:56:30,440 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:56:30,442 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:56:30,444 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:56:30,445 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:56:30,446 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:56:30,446 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:56:30,447 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:56:30,448 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:56:30,451 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:56:30,452 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:56:30,453 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:56:30,455 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:56:30,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:56:30,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:56:30,460 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:56:30,461 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:56:30,463 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:56:30,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:56:30,464 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:56:30,465 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:56:30,466 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:56:30,467 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:56:30,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:56:30,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:56:30,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:56:30,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 08:56:30,470 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 08:56:30,471 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 08:56:30,472 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 08:56:30,472 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 08:56:30,473 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 08:56:30,496 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:56:30,497 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:56:30,498 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:56:30,498 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:56:30,498 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:56:30,498 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:56:30,498 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:56:30,499 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:56:30,499 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:56:30,499 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:56:30,499 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:56:30,499 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:56:30,500 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:56:30,500 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:56:30,501 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:56:30,501 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:56:30,501 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:56:30,501 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:56:30,501 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:56:30,502 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:56:30,502 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:56:30,502 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:56:30,502 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:56:30,502 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:56:30,502 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:56:30,503 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:56:30,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:56:30,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:56:30,503 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:56:30,504 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:56:30,504 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:56:30,504 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:56:30,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:56:30,504 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:56:30,504 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:56:30,505 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:56:30,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:56:30,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:56:30,578 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:56:30,579 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:56:30,580 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:56:30,580 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c [2018-10-27 08:56:30,647 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ce3d80370/0a538443498a4855bbcce4ab1aa666e1/FLAG00f7c9042 [2018-10-27 08:56:31,486 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:56:31,487 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c [2018-10-27 08:56:31,537 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ce3d80370/0a538443498a4855bbcce4ab1aa666e1/FLAG00f7c9042 [2018-10-27 08:56:31,560 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ce3d80370/0a538443498a4855bbcce4ab1aa666e1 [2018-10-27 08:56:31,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:56:31,575 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:56:31,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:56:31,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:56:31,584 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:56:31,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:56:31" (1/1) ... [2018-10-27 08:56:31,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a6628d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:31, skipping insertion in model container [2018-10-27 08:56:31,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:56:31" (1/1) ... [2018-10-27 08:56:31,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:56:31,850 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:56:33,759 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:56:33,763 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:56:34,912 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:56:34,968 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:56:34,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34 WrapperNode [2018-10-27 08:56:34,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:56:34,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:56:34,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:56:34,970 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:56:34,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:35,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:35,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:56:35,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:56:35,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:56:35,711 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:56:35,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:35,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:35,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:35,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:35,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:35,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:36,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... [2018-10-27 08:56:36,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:56:36,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:56:36,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:56:36,109 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:56:36,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:56:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:56:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:56:36,178 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-27 08:56:36,178 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-27 08:56:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-27 08:56:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-27 08:56:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 08:56:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 08:56:36,179 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 08:56:36,179 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 08:56:36,180 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:56:36,181 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:56:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:56:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:56:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:56:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:56:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:56:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:56:55,018 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:56:55,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:56:55 BoogieIcfgContainer [2018-10-27 08:56:55,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:56:55,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:56:55,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:56:55,024 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:56:55,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:56:31" (1/3) ... [2018-10-27 08:56:55,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e52e6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:56:55, skipping insertion in model container [2018-10-27 08:56:55,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:56:34" (2/3) ... [2018-10-27 08:56:55,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e52e6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:56:55, skipping insertion in model container [2018-10-27 08:56:55,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:56:55" (3/3) ... [2018-10-27 08:56:55,028 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label49_true-unreach-call.c [2018-10-27 08:56:55,039 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:56:55,050 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:56:55,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:56:55,124 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:56:55,124 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:56:55,124 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:56:55,124 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:56:55,125 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:56:55,125 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:56:55,125 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:56:55,125 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:56:55,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-27 08:56:55,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-27 08:56:55,194 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:56:55,195 INFO L375 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] [2018-10-27 08:56:55,197 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:56:55,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:56:55,204 INFO L82 PathProgramCache]: Analyzing trace with hash 607797826, now seen corresponding path program 1 times [2018-10-27 08:56:55,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:56:55,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:56:55,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:56:55,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:56:55,262 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:56:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:56:55,709 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:56:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:56:55,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:56:55,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 08:56:55,847 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:56:55,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:56:55,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:56:55,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:56:55,876 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-27 08:57:15,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:57:15,679 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-10-27 08:57:15,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:57:15,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2018-10-27 08:57:15,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:57:15,734 INFO L225 Difference]: With dead ends: 4998 [2018-10-27 08:57:15,734 INFO L226 Difference]: Without dead ends: 3218 [2018-10-27 08:57:15,753 INFO L605 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 [2018-10-27 08:57:15,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-10-27 08:57:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-10-27 08:57:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-10-27 08:57:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-10-27 08:57:15,959 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 49 [2018-10-27 08:57:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:57:15,960 INFO L481 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-10-27 08:57:15,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:57:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-10-27 08:57:15,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-27 08:57:15,972 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:57:15,972 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:57:15,973 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:57:15,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:57:15,973 INFO L82 PathProgramCache]: Analyzing trace with hash -539453364, now seen corresponding path program 1 times [2018-10-27 08:57:15,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:57:15,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:15,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:57:15,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:15,976 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:57:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:57:16,327 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:57:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:57:16,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:57:16,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:57:16,710 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:57:16,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:57:16,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:57:16,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:57:16,714 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-10-27 08:57:44,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:57:44,642 INFO L93 Difference]: Finished difference Result 10761 states and 19806 transitions. [2018-10-27 08:57:44,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:57:44,642 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-10-27 08:57:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:57:44,689 INFO L225 Difference]: With dead ends: 10761 [2018-10-27 08:57:44,690 INFO L226 Difference]: Without dead ends: 7552 [2018-10-27 08:57:44,703 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:57:44,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2018-10-27 08:57:44,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 7515. [2018-10-27 08:57:44,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7515 states. [2018-10-27 08:57:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7515 states to 7515 states and 12487 transitions. [2018-10-27 08:57:44,934 INFO L78 Accepts]: Start accepts. Automaton has 7515 states and 12487 transitions. Word has length 121 [2018-10-27 08:57:44,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:57:44,939 INFO L481 AbstractCegarLoop]: Abstraction has 7515 states and 12487 transitions. [2018-10-27 08:57:44,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:57:44,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7515 states and 12487 transitions. [2018-10-27 08:57:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-10-27 08:57:44,950 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:57:44,951 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:57:44,951 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:57:44,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:57:44,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1062487657, now seen corresponding path program 1 times [2018-10-27 08:57:44,953 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:57:44,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:44,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:57:44,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:57:44,955 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:57:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:57:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:57:45,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:57:45,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:57:45,232 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:57:45,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:57:45,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:57:45,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:57:45,233 INFO L87 Difference]: Start difference. First operand 7515 states and 12487 transitions. Second operand 6 states. [2018-10-27 08:58:11,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:58:11,237 INFO L93 Difference]: Finished difference Result 23939 states and 40137 transitions. [2018-10-27 08:58:11,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:58:11,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-10-27 08:58:11,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:58:11,328 INFO L225 Difference]: With dead ends: 23939 [2018-10-27 08:58:11,328 INFO L226 Difference]: Without dead ends: 16430 [2018-10-27 08:58:11,367 INFO L605 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 [2018-10-27 08:58:11,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16430 states. [2018-10-27 08:58:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16430 to 16247. [2018-10-27 08:58:11,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16247 states. [2018-10-27 08:58:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16247 states to 16247 states and 25410 transitions. [2018-10-27 08:58:11,812 INFO L78 Accepts]: Start accepts. Automaton has 16247 states and 25410 transitions. Word has length 123 [2018-10-27 08:58:11,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:58:11,813 INFO L481 AbstractCegarLoop]: Abstraction has 16247 states and 25410 transitions. [2018-10-27 08:58:11,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:58:11,813 INFO L276 IsEmpty]: Start isEmpty. Operand 16247 states and 25410 transitions. [2018-10-27 08:58:11,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-27 08:58:11,822 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:58:11,822 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:58:11,822 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:58:11,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:58:11,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1488344396, now seen corresponding path program 1 times [2018-10-27 08:58:11,823 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:58:11,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:58:11,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:58:11,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:58:11,826 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:58:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:58:12,195 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:58:12,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:58:12,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 08:58:12,195 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:58:12,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 08:58:12,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 08:58:12,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 08:58:12,197 INFO L87 Difference]: Start difference. First operand 16247 states and 25410 transitions. Second operand 5 states. [2018-10-27 08:58:39,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:58:39,658 INFO L93 Difference]: Finished difference Result 48299 states and 77021 transitions. [2018-10-27 08:58:39,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 08:58:39,661 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 154 [2018-10-27 08:58:39,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:58:39,798 INFO L225 Difference]: With dead ends: 48299 [2018-10-27 08:58:39,798 INFO L226 Difference]: Without dead ends: 32058 [2018-10-27 08:58:39,863 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 08:58:39,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32058 states. [2018-10-27 08:58:40,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32058 to 31582. [2018-10-27 08:58:40,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31582 states. [2018-10-27 08:58:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31582 states to 31582 states and 43804 transitions. [2018-10-27 08:58:40,670 INFO L78 Accepts]: Start accepts. Automaton has 31582 states and 43804 transitions. Word has length 154 [2018-10-27 08:58:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:58:40,670 INFO L481 AbstractCegarLoop]: Abstraction has 31582 states and 43804 transitions. [2018-10-27 08:58:40,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 08:58:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 31582 states and 43804 transitions. [2018-10-27 08:58:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-27 08:58:40,682 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:58:40,685 INFO L375 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, 2, 2, 2, 2, 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] [2018-10-27 08:58:40,686 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:58:40,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:58:40,686 INFO L82 PathProgramCache]: Analyzing trace with hash 664970826, now seen corresponding path program 1 times [2018-10-27 08:58:40,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:58:40,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:58:40,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:58:40,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:58:40,689 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:58:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:58:40,995 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:58:41,404 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 84 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:58:41,404 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:58:41,404 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:58:41,406 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 221 with the following transitions: [2018-10-27 08:58:41,408 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5518], [5520], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5877], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-27 08:58:41,459 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:58:41,459 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:58:42,026 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:58:42,030 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 08:58:42,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:58:42,073 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:58:42,672 INFO L227 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 75.58% of their original sizes. [2018-10-27 08:58:42,674 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:58:42,948 INFO L415 sIntCurrentIteration]: We unified 219 AI predicates to 219 [2018-10-27 08:58:42,948 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:58:42,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:58:42,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 08:58:42,953 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:58:42,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:58:42,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:58:42,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:58:42,954 INFO L87 Difference]: Start difference. First operand 31582 states and 43804 transitions. Second operand 6 states. Received shutdown request... [2018-10-27 09:00:23,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 09:00:23,837 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 09:00:23,843 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 09:00:23,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 09:00:23 BoogieIcfgContainer [2018-10-27 09:00:23,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 09:00:23,844 INFO L168 Benchmark]: Toolchain (without parser) took 232270.17 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 648.4 MB. Max. memory is 7.1 GB. [2018-10-27 09:00:23,845 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 09:00:23,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3389.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. [2018-10-27 09:00:23,847 INFO L168 Benchmark]: Boogie Procedure Inliner took 740.60 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 882.4 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-27 09:00:23,848 INFO L168 Benchmark]: Boogie Preprocessor took 397.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2018-10-27 09:00:23,848 INFO L168 Benchmark]: RCFGBuilder took 18910.83 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 156.2 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 516.3 MB). Peak memory consumption was 672.5 MB. Max. memory is 7.1 GB. [2018-10-27 09:00:23,850 INFO L168 Benchmark]: TraceAbstraction took 208823.16 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.5 GB in the end (delta: -1.8 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 09:00:23,855 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3389.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 401.7 MB). Peak memory consumption was 401.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 740.60 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 882.4 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 397.10 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 59.6 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18910.83 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 156.2 MB). Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 516.3 MB). Peak memory consumption was 672.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208823.16 ms. Allocated memory was 2.6 GB in the beginning and 4.3 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.5 GB in the end (delta: -1.8 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 142). Cancelled while BasicCegarLoop was constructing difference of abstraction (31582states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (23945 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 208.7s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 202.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3287 SDtfs, 22782 SDslu, 2897 SDs, 0 SdLazy, 39527 SolverSat, 9710 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 169.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 254 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31582occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9978402247610111 AbsIntWeakeningRatio, 0.1278538812785388 AbsIntAvgWeakeningVarsNumRemoved, 17.164383561643834 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 699 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 667 NumberOfCodeBlocks, 667 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 325090 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 215/280 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown