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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 01:11:29,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 01:11:29,282 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 01:11:29,299 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 01:11:29,299 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 01:11:29,300 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 01:11:29,302 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 01:11:29,305 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 01:11:29,307 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 01:11:29,308 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 01:11:29,317 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 01:11:29,317 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 01:11:29,319 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 01:11:29,321 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 01:11:29,324 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 01:11:29,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 01:11:29,326 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 01:11:29,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 01:11:29,333 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 01:11:29,336 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 01:11:29,337 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 01:11:29,340 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 01:11:29,343 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 01:11:29,343 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 01:11:29,343 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 01:11:29,346 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 01:11:29,347 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 01:11:29,348 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 01:11:29,349 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 01:11:29,350 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 01:11:29,350 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 01:11:29,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 01:11:29,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 01:11:29,354 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 01:11:29,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 01:11:29,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 01:11:29,356 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-27 01:11:29,382 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 01:11:29,383 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 01:11:29,383 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 01:11:29,384 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 01:11:29,384 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 01:11:29,384 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 01:11:29,384 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 01:11:29,385 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 01:11:29,385 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 01:11:29,385 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 01:11:29,385 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 01:11:29,385 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 01:11:29,386 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 01:11:29,386 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 01:11:29,387 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 01:11:29,388 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 01:11:29,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 01:11:29,388 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 01:11:29,389 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 01:11:29,390 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 01:11:29,390 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 01:11:29,390 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 01:11:29,390 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 01:11:29,391 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 01:11:29,391 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 01:11:29,391 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 01:11:29,391 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 01:11:29,391 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 01:11:29,392 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 01:11:29,392 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 01:11:29,392 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 01:11:29,392 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 01:11:29,392 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 01:11:29,393 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 01:11:29,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 01:11:29,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 01:11:29,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 01:11:29,484 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 01:11:29,485 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 01:11:29,485 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label49_true-unreach-call.c [2018-10-27 01:11:29,558 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/252e498d6/b609d4860913411aaf6856fd063dbb80/FLAG67115d8ea [2018-10-27 01:11:30,308 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 01:11:30,309 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label49_true-unreach-call.c [2018-10-27 01:11:30,334 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/252e498d6/b609d4860913411aaf6856fd063dbb80/FLAG67115d8ea [2018-10-27 01:11:30,354 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/252e498d6/b609d4860913411aaf6856fd063dbb80 [2018-10-27 01:11:30,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 01:11:30,370 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 01:11:30,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 01:11:30,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 01:11:30,377 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 01:11:30,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:11:30" (1/1) ... [2018-10-27 01:11:30,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed858fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:30, skipping insertion in model container [2018-10-27 01:11:30,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:11:30" (1/1) ... [2018-10-27 01:11:30,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 01:11:30,502 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 01:11:31,197 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 01:11:31,203 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 01:11:31,461 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 01:11:31,486 INFO L193 MainTranslator]: Completed translation [2018-10-27 01:11:31,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31 WrapperNode [2018-10-27 01:11:31,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 01:11:31,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 01:11:31,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 01:11:31,489 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 01:11:31,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 01:11:31,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 01:11:31,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 01:11:31,828 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 01:11:31,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (1/1) ... [2018-10-27 01:11:31,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 01:11:31,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 01:11:31,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 01:11:31,987 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 01:11:31,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (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 01:11:32,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 01:11:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 01:11:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 01:11:32,060 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 01:11:32,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 01:11:32,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 01:11:32,061 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 01:11:32,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 01:11:36,736 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 01:11:36,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:11:36 BoogieIcfgContainer [2018-10-27 01:11:36,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 01:11:36,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 01:11:36,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 01:11:36,744 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 01:11:36,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:11:30" (1/3) ... [2018-10-27 01:11:36,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4fbea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:11:36, skipping insertion in model container [2018-10-27 01:11:36,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:11:31" (2/3) ... [2018-10-27 01:11:36,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4fbea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:11:36, skipping insertion in model container [2018-10-27 01:11:36,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:11:36" (3/3) ... [2018-10-27 01:11:36,749 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label49_true-unreach-call.c [2018-10-27 01:11:36,761 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 01:11:36,773 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 01:11:36,794 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 01:11:36,840 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 01:11:36,840 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 01:11:36,841 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 01:11:36,841 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 01:11:36,841 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 01:11:36,841 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 01:11:36,841 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 01:11:36,842 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 01:11:36,874 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-27 01:11:36,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-27 01:11:36,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:11:36,898 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:36,901 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:11:36,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:11:36,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1345868708, now seen corresponding path program 1 times [2018-10-27 01:11:36,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:11:36,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:11:36,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:11:36,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:11:36,982 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:11:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:11:37,837 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 01:11:38,044 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 01:11:38,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 01:11:38,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 01:11:38,048 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 01:11:38,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 01:11:38,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 01:11:38,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 01:11:38,082 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-10-27 01:11:40,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 01:11:40,100 INFO L93 Difference]: Finished difference Result 844 states and 1489 transitions. [2018-10-27 01:11:40,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 01:11:40,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2018-10-27 01:11:40,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 01:11:40,127 INFO L225 Difference]: With dead ends: 844 [2018-10-27 01:11:40,128 INFO L226 Difference]: Without dead ends: 530 [2018-10-27 01:11:40,139 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 01:11:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-10-27 01:11:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 525. [2018-10-27 01:11:40,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 525 states. [2018-10-27 01:11:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 865 transitions. [2018-10-27 01:11:40,267 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 865 transitions. Word has length 175 [2018-10-27 01:11:40,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 01:11:40,269 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 865 transitions. [2018-10-27 01:11:40,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 01:11:40,269 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 865 transitions. [2018-10-27 01:11:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-10-27 01:11:40,277 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 01:11:40,278 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 01:11:40,279 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 01:11:40,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 01:11:40,279 INFO L82 PathProgramCache]: Analyzing trace with hash 396212824, now seen corresponding path program 1 times [2018-10-27 01:11:40,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 01:11:40,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:11:40,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:11:40,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 01:11:40,281 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 01:11:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:11:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 01:11:40,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:11:40,930 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 01:11:40,932 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 189 with the following transitions: [2018-10-27 01:11:40,935 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [861], [863], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 01:11:41,056 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 01:11:41,056 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-27 01:16:11,943 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 01:16:11,944 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 01:16:11,945 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 01:16:11,946 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 01:16:11,946 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 01:16:11,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 01:16:11,958 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 01:16:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 01:16:12,146 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 01:16:12,191 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 01:16:12,393 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 01:16:12,393 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 01:16:12,400 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 01:16:12,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:16:12 BoogieIcfgContainer [2018-10-27 01:16:12,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 01:16:12,402 INFO L168 Benchmark]: Toolchain (without parser) took 282032.76 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -970.1 MB). Peak memory consumption was 192.7 MB. Max. memory is 7.1 GB. [2018-10-27 01:16:12,403 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 01:16:12,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1116.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-10-27 01:16:12,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 338.70 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 700.4 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -818.6 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-10-27 01:16:12,406 INFO L168 Benchmark]: Boogie Preprocessor took 158.76 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2018-10-27 01:16:12,406 INFO L168 Benchmark]: RCFGBuilder took 4751.16 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 257.5 MB). Peak memory consumption was 257.5 MB. Max. memory is 7.1 GB. [2018-10-27 01:16:12,407 INFO L168 Benchmark]: TraceAbstraction took 275662.06 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 462.4 MB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -497.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 01:16:12,412 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1116.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 338.70 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 700.4 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -818.6 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.76 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4751.16 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 257.5 MB). Peak memory consumption was 257.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 275662.06 ms. Allocated memory was 2.2 GB in the beginning and 2.6 GB in the end (delta: 462.4 MB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -497.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1539]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1539). Cancelled while BasicCegarLoop was analyzing trace of length 189 with TraceHistMax 2,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 7 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 275.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 207 SDtfs, 169 SDslu, 63 SDs, 0 SdLazy, 645 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=525occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 271.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 175 NumberOfCodeBlocks, 175 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 120060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown