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/Problem11_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:06:14,736 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:06:14,738 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:06:14,751 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:06:14,751 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:06:14,752 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:06:14,753 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:06:14,755 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:06:14,758 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:06:14,758 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:06:14,759 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:06:14,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:06:14,766 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:06:14,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:06:14,768 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:06:14,769 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:06:14,770 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:06:14,775 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:06:14,780 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:06:14,781 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:06:14,783 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:06:14,788 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:06:14,795 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:06:14,795 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:06:14,795 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:06:14,796 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:06:14,797 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:06:14,801 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:06:14,802 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:06:14,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:06:14,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:06:14,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 21:06:14,810 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 [2018-10-24 21:06:14,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:06:14,839 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:06:14,840 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:06:14,840 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:06:14,840 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:06:14,840 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:06:14,840 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:06:14,841 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:06:14,841 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:06:14,841 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:06:14,841 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:06:14,841 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:06:14,842 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:06:14,842 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:06:14,842 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:06:14,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:06:14,844 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:06:14,844 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:06:14,844 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:06:14,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:06:14,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:06:14,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:06:14,845 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:06:14,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:06:14,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:06:14,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:06:14,846 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:06:14,846 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:06:14,846 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:06:14,846 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:06:14,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:06:14,847 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:06:14,847 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:06:14,847 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:06:14,907 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:06:14,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:06:14,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:06:14,924 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:06:14,924 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:06:14,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label09_true-unreach-call.c [2018-10-24 21:06:14,998 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/129b754b7/637216a6f5be4bcb837e2f3cafd0b075/FLAG24552ad6f [2018-10-24 21:06:15,688 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:06:15,689 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label09_true-unreach-call.c [2018-10-24 21:06:15,709 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/129b754b7/637216a6f5be4bcb837e2f3cafd0b075/FLAG24552ad6f [2018-10-24 21:06:15,730 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/129b754b7/637216a6f5be4bcb837e2f3cafd0b075 [2018-10-24 21:06:15,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:06:15,746 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:06:15,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:06:15,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:06:15,751 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:06:15,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:06:15" (1/1) ... [2018-10-24 21:06:15,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a17cd1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:15, skipping insertion in model container [2018-10-24 21:06:15,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:06:15" (1/1) ... [2018-10-24 21:06:15,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:06:15,858 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:06:16,465 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:06:16,469 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:06:16,634 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:06:16,659 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:06:16,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16 WrapperNode [2018-10-24 21:06:16,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:06:16,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:06:16,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:06:16,661 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:06:16,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:16,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:16,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:06:16,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:06:16,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:06:16,971 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:06:16,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:16,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:16,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:16,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:17,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:17,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:17,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (1/1) ... [2018-10-24 21:06:17,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:06:17,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:06:17,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:06:17,120 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:06:17,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (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 [2018-10-24 21:06:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:06:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:06:17,196 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:06:17,196 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:06:17,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:06:17,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:06:17,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:06:17,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:06:22,343 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:06:22,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:06:22 BoogieIcfgContainer [2018-10-24 21:06:22,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:06:22,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:06:22,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:06:22,349 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:06:22,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:06:15" (1/3) ... [2018-10-24 21:06:22,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c784b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:06:22, skipping insertion in model container [2018-10-24 21:06:22,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:06:16" (2/3) ... [2018-10-24 21:06:22,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c784b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:06:22, skipping insertion in model container [2018-10-24 21:06:22,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:06:22" (3/3) ... [2018-10-24 21:06:22,353 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label09_true-unreach-call.c [2018-10-24 21:06:22,363 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:06:22,373 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:06:22,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:06:22,430 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:06:22,430 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:06:22,431 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:06:22,431 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:06:22,431 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:06:22,431 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:06:22,431 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:06:22,431 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:06:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:06:22,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-10-24 21:06:22,472 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:06:22,473 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] [2018-10-24 21:06:22,475 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:06:22,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:06:22,482 INFO L82 PathProgramCache]: Analyzing trace with hash -662645095, now seen corresponding path program 1 times [2018-10-24 21:06:22,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:06:22,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:06:22,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:06:22,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:06:22,538 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:06:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:06:23,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:06:23,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:06:23,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:06:23,090 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:06:23,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:06:23,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:06:23,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:06:23,118 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 21:06:26,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:06:26,259 INFO L93 Difference]: Finished difference Result 985 states and 1761 transitions. [2018-10-24 21:06:26,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:06:26,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 73 [2018-10-24 21:06:26,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:06:26,287 INFO L225 Difference]: With dead ends: 985 [2018-10-24 21:06:26,288 INFO L226 Difference]: Without dead ends: 686 [2018-10-24 21:06:26,298 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:06:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-10-24 21:06:26,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2018-10-24 21:06:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2018-10-24 21:06:26,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1046 transitions. [2018-10-24 21:06:26,399 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1046 transitions. Word has length 73 [2018-10-24 21:06:26,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:06:26,400 INFO L481 AbstractCegarLoop]: Abstraction has 686 states and 1046 transitions. [2018-10-24 21:06:26,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:06:26,400 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1046 transitions. [2018-10-24 21:06:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-24 21:06:26,411 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:06:26,412 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:06:26,412 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:06:26,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:06:26,413 INFO L82 PathProgramCache]: Analyzing trace with hash -2141432933, now seen corresponding path program 1 times [2018-10-24 21:06:26,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:06:26,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:06:26,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:06:26,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:06:26,415 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:06:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:06:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:06:26,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:06:26,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:06:26,716 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:06:26,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:06:26,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:06:26,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:06:26,720 INFO L87 Difference]: Start difference. First operand 686 states and 1046 transitions. Second operand 6 states. [2018-10-24 21:06:35,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:06:35,021 INFO L93 Difference]: Finished difference Result 2339 states and 3736 transitions. [2018-10-24 21:06:35,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:06:35,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-10-24 21:06:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:06:35,035 INFO L225 Difference]: With dead ends: 2339 [2018-10-24 21:06:35,036 INFO L226 Difference]: Without dead ends: 1659 [2018-10-24 21:06:35,041 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:06:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2018-10-24 21:06:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1637. [2018-10-24 21:06:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1637 states. [2018-10-24 21:06:35,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1637 states to 1637 states and 2351 transitions. [2018-10-24 21:06:35,124 INFO L78 Accepts]: Start accepts. Automaton has 1637 states and 2351 transitions. Word has length 154 [2018-10-24 21:06:35,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:06:35,125 INFO L481 AbstractCegarLoop]: Abstraction has 1637 states and 2351 transitions. [2018-10-24 21:06:35,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:06:35,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1637 states and 2351 transitions. [2018-10-24 21:06:35,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-24 21:06:35,136 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:06:35,137 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, 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] [2018-10-24 21:06:35,137 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:06:35,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:06:35,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2008994851, now seen corresponding path program 1 times [2018-10-24 21:06:35,138 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:06:35,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:06:35,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:06:35,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:06:35,140 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:06:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:06:36,177 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 60 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:06:36,177 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:06:36,177 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:06:36,178 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-10-24 21:06:36,181 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [485], [487], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:06:36,260 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:06:36,260 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:06:40,410 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:06:55,919 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:06:55,921 INFO L272 AbstractInterpreter]: Visited 139 different actions 404 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:06:55,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:06:55,947 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:06:59,637 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 78.85% of their original sizes. [2018-10-24 21:06:59,637 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:08:10,260 INFO L413 sIntCurrentIteration]: We have 204 unified AI predicates [2018-10-24 21:08:10,261 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:08:10,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:08:10,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [8] total 22 [2018-10-24 21:08:10,262 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:08:10,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 21:08:10,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 21:08:10,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-10-24 21:08:10,264 INFO L87 Difference]: Start difference. First operand 1637 states and 2351 transitions. Second operand 16 states. Received shutdown request... [2018-10-24 21:10:32,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 21:10:32,490 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:10:32,495 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:10:32,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:10:32 BoogieIcfgContainer [2018-10-24 21:10:32,495 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:10:32,496 INFO L168 Benchmark]: Toolchain (without parser) took 256751.71 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -532.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-10-24 21:10:32,499 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-24 21:10:32,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 913.70 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:10:32,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 309.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -842.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:10:32,501 INFO L168 Benchmark]: Boogie Preprocessor took 149.23 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:10:32,501 INFO L168 Benchmark]: RCFGBuilder took 5224.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 182.8 MB). Peak memory consumption was 182.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:10:32,502 INFO L168 Benchmark]: TraceAbstraction took 250150.07 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 73.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 21:10:32,507 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 913.70 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 309.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -842.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.23 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5224.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 182.8 MB). Peak memory consumption was 182.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 250150.07 ms. Allocated memory was 2.3 GB in the beginning and 3.8 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 73.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 204]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 204). Cancelled while BasicCegarLoop was constructing difference of abstraction (1637states) and FLOYD_HOARE automaton (currently 18 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (833 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 250.0s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 153.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 346 SDtfs, 2599 SDslu, 357 SDs, 0 SdLazy, 4113 SolverSat, 670 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 49.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 225 GetRequests, 134 SyntacticMatches, 63 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 74.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1637occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9955908289241623 AbsIntWeakeningRatio, 0.11274509803921569 AbsIntAvgWeakeningVarsNumRemoved, 1045.9264705882354 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 22 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 432 NumberOfCodeBlocks, 432 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 381873 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 126/132 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown