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/Problem12_label04_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 07:41:40,239 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 07:41:40,244 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 07:41:40,260 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 07:41:40,261 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 07:41:40,262 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 07:41:40,264 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 07:41:40,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 07:41:40,268 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 07:41:40,270 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 07:41:40,271 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 07:41:40,271 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 07:41:40,272 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 07:41:40,273 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 07:41:40,274 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 07:41:40,275 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 07:41:40,276 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 07:41:40,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 07:41:40,284 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 07:41:40,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 07:41:40,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 07:41:40,291 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 07:41:40,293 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 07:41:40,294 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 07:41:40,295 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 07:41:40,296 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 07:41:40,297 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 07:41:40,298 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 07:41:40,299 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 07:41:40,302 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 07:41:40,302 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 07:41:40,303 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 07:41:40,303 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 07:41:40,303 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 07:41:40,305 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 07:41:40,306 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 07:41:40,306 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 07:41:40,330 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 07:41:40,330 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 07:41:40,331 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 07:41:40,331 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 07:41:40,334 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 07:41:40,335 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 07:41:40,335 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 07:41:40,335 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 07:41:40,335 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 07:41:40,335 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 07:41:40,336 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 07:41:40,336 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 07:41:40,336 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 07:41:40,336 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 07:41:40,337 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 07:41:40,338 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 07:41:40,338 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 07:41:40,338 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 07:41:40,338 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 07:41:40,338 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 07:41:40,339 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 07:41:40,340 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 07:41:40,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 07:41:40,341 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 07:41:40,341 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 07:41:40,341 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 07:41:40,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:41:40,341 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 07:41:40,342 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 07:41:40,342 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 07:41:40,342 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 07:41:40,342 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 07:41:40,342 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 07:41:40,342 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 07:41:40,343 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 07:41:40,343 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 07:41:40,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 07:41:40,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 07:41:40,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 07:41:40,431 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 07:41:40,432 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 07:41:40,432 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-10-27 07:41:40,487 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/72248d490/b84abc526fe34b02bca63af093fe5261/FLAGad8b0db08 [2018-10-27 07:41:41,248 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 07:41:41,249 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label04_true-unreach-call.c [2018-10-27 07:41:41,283 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/72248d490/b84abc526fe34b02bca63af093fe5261/FLAGad8b0db08 [2018-10-27 07:41:41,305 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/72248d490/b84abc526fe34b02bca63af093fe5261 [2018-10-27 07:41:41,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 07:41:41,322 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 07:41:41,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 07:41:41,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 07:41:41,330 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 07:41:41,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:41:41" (1/1) ... [2018-10-27 07:41:41,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ad132a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:41, skipping insertion in model container [2018-10-27 07:41:41,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:41:41" (1/1) ... [2018-10-27 07:41:41,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 07:41:41,524 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 07:41:42,936 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:41:42,941 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 07:41:43,559 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:41:43,595 INFO L193 MainTranslator]: Completed translation [2018-10-27 07:41:43,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43 WrapperNode [2018-10-27 07:41:43,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 07:41:43,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 07:41:43,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 07:41:43,597 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 07:41:43,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:43,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 07:41:44,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 07:41:44,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 07:41:44,078 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 07:41:44,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (1/1) ... [2018-10-27 07:41:44,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 07:41:44,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 07:41:44,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 07:41:44,411 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 07:41:44,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (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 07:41:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 07:41:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 07:41:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 07:41:44,486 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 07:41:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 07:41:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 07:41:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 07:41:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 07:41:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 07:41:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 07:41:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 07:41:44,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 07:41:44,488 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 07:41:44,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 07:41:56,328 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 07:41:56,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:41:56 BoogieIcfgContainer [2018-10-27 07:41:56,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 07:41:56,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 07:41:56,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 07:41:56,334 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 07:41:56,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:41:41" (1/3) ... [2018-10-27 07:41:56,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fe6e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:41:56, skipping insertion in model container [2018-10-27 07:41:56,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:41:43" (2/3) ... [2018-10-27 07:41:56,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60fe6e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:41:56, skipping insertion in model container [2018-10-27 07:41:56,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:41:56" (3/3) ... [2018-10-27 07:41:56,338 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04_true-unreach-call.c [2018-10-27 07:41:56,349 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 07:41:56,359 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 07:41:56,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 07:41:56,426 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 07:41:56,426 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 07:41:56,426 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 07:41:56,426 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 07:41:56,426 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 07:41:56,427 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 07:41:56,427 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 07:41:56,427 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 07:41:56,465 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-10-27 07:41:56,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-27 07:41:56,476 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:41:56,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:41:56,479 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:41:56,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:41:56,486 INFO L82 PathProgramCache]: Analyzing trace with hash -629755477, now seen corresponding path program 1 times [2018-10-27 07:41:56,489 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:41:56,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:41:56,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:41:56,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:41:56,545 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:41:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:41:57,073 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:41:57,165 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 07:41:57,168 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:41:57,168 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 07:41:57,168 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:41:57,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 07:41:57,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 07:41:57,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:41:57,193 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-10-27 07:42:08,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:42:08,663 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-10-27 07:42:08,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 07:42:08,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-10-27 07:42:08,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:42:08,703 INFO L225 Difference]: With dead ends: 2446 [2018-10-27 07:42:08,703 INFO L226 Difference]: Without dead ends: 1604 [2018-10-27 07:42:08,716 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 07:42:08,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-10-27 07:42:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-10-27 07:42:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-10-27 07:42:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3021 transitions. [2018-10-27 07:42:08,890 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3021 transitions. Word has length 67 [2018-10-27 07:42:08,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:42:08,891 INFO L481 AbstractCegarLoop]: Abstraction has 1604 states and 3021 transitions. [2018-10-27 07:42:08,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 07:42:08,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3021 transitions. [2018-10-27 07:42:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-27 07:42:08,905 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:42:08,905 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:42:08,906 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:42:08,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:42:08,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1436302644, now seen corresponding path program 1 times [2018-10-27 07:42:08,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:42:08,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:42:08,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:42:08,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:42:08,910 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:42:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:42:09,313 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:42:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:42:09,598 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:42:09,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:42:09,598 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:42:09,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:42:09,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:42:09,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:42:09,602 INFO L87 Difference]: Start difference. First operand 1604 states and 3021 transitions. Second operand 6 states. [2018-10-27 07:42:25,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:42:25,302 INFO L93 Difference]: Finished difference Result 6336 states and 12138 transitions. [2018-10-27 07:42:25,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 07:42:25,302 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-27 07:42:25,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:42:25,338 INFO L225 Difference]: With dead ends: 6336 [2018-10-27 07:42:25,338 INFO L226 Difference]: Without dead ends: 4738 [2018-10-27 07:42:25,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 07:42:25,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4738 states. [2018-10-27 07:42:25,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4738 to 4703. [2018-10-27 07:42:25,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4703 states. [2018-10-27 07:42:25,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4703 states to 4703 states and 7682 transitions. [2018-10-27 07:42:25,505 INFO L78 Accepts]: Start accepts. Automaton has 4703 states and 7682 transitions. Word has length 145 [2018-10-27 07:42:25,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:42:25,505 INFO L481 AbstractCegarLoop]: Abstraction has 4703 states and 7682 transitions. [2018-10-27 07:42:25,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:42:25,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4703 states and 7682 transitions. [2018-10-27 07:42:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-27 07:42:25,518 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:42:25,519 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:42:25,519 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:42:25,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:42:25,519 INFO L82 PathProgramCache]: Analyzing trace with hash -659539728, now seen corresponding path program 1 times [2018-10-27 07:42:25,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:42:25,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:42:25,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:42:25,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:42:25,524 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:42:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:42:25,768 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:42:25,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:42:25,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 07:42:25,769 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:42:25,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 07:42:25,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 07:42:25,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-27 07:42:25,770 INFO L87 Difference]: Start difference. First operand 4703 states and 7682 transitions. Second operand 5 states. [2018-10-27 07:42:37,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:42:37,732 INFO L93 Difference]: Finished difference Result 14309 states and 23694 transitions. [2018-10-27 07:42:37,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 07:42:37,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-10-27 07:42:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:42:37,787 INFO L225 Difference]: With dead ends: 14309 [2018-10-27 07:42:37,787 INFO L226 Difference]: Without dead ends: 9612 [2018-10-27 07:42:37,802 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:42:37,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9612 states. [2018-10-27 07:42:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9612 to 9532. [2018-10-27 07:42:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9532 states. [2018-10-27 07:42:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9532 states to 9532 states and 14374 transitions. [2018-10-27 07:42:38,099 INFO L78 Accepts]: Start accepts. Automaton has 9532 states and 14374 transitions. Word has length 147 [2018-10-27 07:42:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:42:38,100 INFO L481 AbstractCegarLoop]: Abstraction has 9532 states and 14374 transitions. [2018-10-27 07:42:38,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 07:42:38,100 INFO L276 IsEmpty]: Start isEmpty. Operand 9532 states and 14374 transitions. [2018-10-27 07:42:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-10-27 07:42:38,105 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:42:38,106 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, 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] [2018-10-27 07:42:38,106 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:42:38,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:42:38,106 INFO L82 PathProgramCache]: Analyzing trace with hash -731114027, now seen corresponding path program 1 times [2018-10-27 07:42:38,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:42:38,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:42:38,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:42:38,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:42:38,112 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:42:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:42:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:42:38,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:42:38,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:42:38,546 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:42:38,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:42:38,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:42:38,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:42:38,547 INFO L87 Difference]: Start difference. First operand 9532 states and 14374 transitions. Second operand 6 states. [2018-10-27 07:42:59,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:42:59,892 INFO L93 Difference]: Finished difference Result 38119 states and 61201 transitions. [2018-10-27 07:42:59,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:42:59,899 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-10-27 07:42:59,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:43:00,064 INFO L225 Difference]: With dead ends: 38119 [2018-10-27 07:43:00,065 INFO L226 Difference]: Without dead ends: 28593 [2018-10-27 07:43:00,131 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-27 07:43:00,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28593 states. [2018-10-27 07:43:00,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28593 to 28537. [2018-10-27 07:43:00,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28537 states. [2018-10-27 07:43:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28537 states to 28537 states and 41799 transitions. [2018-10-27 07:43:00,819 INFO L78 Accepts]: Start accepts. Automaton has 28537 states and 41799 transitions. Word has length 158 [2018-10-27 07:43:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:43:00,819 INFO L481 AbstractCegarLoop]: Abstraction has 28537 states and 41799 transitions. [2018-10-27 07:43:00,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:43:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 28537 states and 41799 transitions. [2018-10-27 07:43:00,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-27 07:43:00,825 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:43:00,825 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:43:00,825 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:43:00,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:43:00,826 INFO L82 PathProgramCache]: Analyzing trace with hash -90858887, now seen corresponding path program 1 times [2018-10-27 07:43:00,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:43:00,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:43:00,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:43:00,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:43:00,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:43:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:43:01,126 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:43:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:43:01,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:43:01,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:43:01,578 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:43:01,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:43:01,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:43:01,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:43:01,580 INFO L87 Difference]: Start difference. First operand 28537 states and 41799 transitions. Second operand 6 states. [2018-10-27 07:43:12,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:43:12,403 INFO L93 Difference]: Finished difference Result 79351 states and 124048 transitions. [2018-10-27 07:43:12,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:43:12,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2018-10-27 07:43:12,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:43:12,654 INFO L225 Difference]: With dead ends: 79351 [2018-10-27 07:43:12,655 INFO L226 Difference]: Without dead ends: 50820 [2018-10-27 07:43:12,785 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 07:43:12,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50820 states. [2018-10-27 07:43:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50820 to 50663. [2018-10-27 07:43:14,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50663 states. [2018-10-27 07:43:14,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50663 states to 50663 states and 72662 transitions. [2018-10-27 07:43:14,289 INFO L78 Accepts]: Start accepts. Automaton has 50663 states and 72662 transitions. Word has length 192 [2018-10-27 07:43:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:43:14,289 INFO L481 AbstractCegarLoop]: Abstraction has 50663 states and 72662 transitions. [2018-10-27 07:43:14,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:43:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 50663 states and 72662 transitions. [2018-10-27 07:43:14,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-10-27 07:43:14,303 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:43:14,304 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:43:14,304 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:43:14,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:43:14,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1240874338, now seen corresponding path program 1 times [2018-10-27 07:43:14,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:43:14,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:43:14,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:43:14,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:43:14,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:43:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:43:14,568 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 07:43:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 120 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 07:43:14,627 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:43:14,627 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:43:14,628 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 257 with the following transitions: [2018-10-27 07:43:14,630 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2303], [2305], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2400], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2516], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-10-27 07:43:14,682 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:43:14,682 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:43:15,365 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 07:43:15,366 INFO L272 AbstractInterpreter]: Visited 114 different actions 114 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 07:43:15,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:43:15,409 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 07:43:16,147 INFO L227 lantSequenceWeakener]: Weakened 247 states. On average, predicates are now at 75.79% of their original sizes. [2018-10-27 07:43:16,148 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 07:43:16,222 INFO L415 sIntCurrentIteration]: We unified 255 AI predicates to 255 [2018-10-27 07:43:16,222 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 07:43:16,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 07:43:16,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 07:43:16,224 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:43:16,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:43:16,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:43:16,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:43:16,225 INFO L87 Difference]: Start difference. First operand 50663 states and 72662 transitions. Second operand 6 states. Received shutdown request... [2018-10-27 07:45:47,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 07:45:47,233 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 07:45:47,240 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 07:45:47,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 07:45:47 BoogieIcfgContainer [2018-10-27 07:45:47,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 07:45:47,242 INFO L168 Benchmark]: Toolchain (without parser) took 245921.43 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -945.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-27 07:45:47,243 INFO L168 Benchmark]: CDTParser took 0.22 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 07:45:47,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2272.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-27 07:45:47,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 480.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. [2018-10-27 07:45:47,245 INFO L168 Benchmark]: Boogie Preprocessor took 332.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2018-10-27 07:45:47,246 INFO L168 Benchmark]: RCFGBuilder took 11918.41 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 174.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -165.5 MB). Peak memory consumption was 664.3 MB. Max. memory is 7.1 GB. [2018-10-27 07:45:47,247 INFO L168 Benchmark]: TraceAbstraction took 230910.39 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 10.8 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-27 07:45:47,253 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 2272.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 480.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 332.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11918.41 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 174.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -165.5 MB). Peak memory consumption was 664.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230910.39 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 10.8 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (50663states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (25260 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 230.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 223.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1017 SDtfs, 15942 SDslu, 1052 SDs, 0 SdLazy, 28964 SolverSat, 5971 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 198.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 297 GetRequests, 264 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50663occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9979817355137052 AbsIntWeakeningRatio, 0.10588235294117647 AbsIntAvgWeakeningVarsNumRemoved, 17.49411764705882 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 328 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 965 NumberOfCodeBlocks, 965 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 959 ConstructedInterpolants, 0 QuantifiedInterpolants, 658562 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 365/440 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown