java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:14:05,728 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:14:05,730 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:14:05,747 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:14:05,748 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:14:05,749 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:14:05,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:14:05,753 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:14:05,757 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:14:05,764 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:14:05,765 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:14:05,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:14:05,766 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:14:05,770 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:14:05,772 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:14:05,773 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:14:05,775 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:14:05,778 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:14:05,782 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:14:05,787 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:14:05,789 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:14:05,790 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:14:05,794 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:14:05,794 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:14:05,794 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:14:05,795 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:14:05,796 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:14:05,797 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:14:05,797 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:14:05,798 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:14:05,799 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:14:05,802 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-18 12:14:05,806 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 12:14:05,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:14:05,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:14:05,839 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:14:05,839 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:14:05,839 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:14:05,840 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:14:05,840 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:14:05,840 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:14:05,840 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:14:05,840 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:14:05,841 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:14:05,841 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:14:05,843 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:14:05,843 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:14:05,843 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:14:05,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:14:05,845 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:14:05,845 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:14:05,845 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:14:05,845 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:14:05,846 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:14:05,846 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:14:05,846 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:14:05,846 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:14:05,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:14:05,847 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:14:05,847 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:14:05,847 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:14:05,847 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:14:05,848 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:14:05,849 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:14:05,849 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:14:05,849 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:14:05,849 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:14:05,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:14:05,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:14:05,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:14:05,940 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:14:05,940 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:14:05,941 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label38_true-unreach-call.c [2018-09-18 12:14:06,275 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477e4bc5d/9ab7495f174846e489dd51aff6d051c7/FLAG09708c08e [2018-09-18 12:14:06,723 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:14:06,724 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label38_true-unreach-call.c [2018-09-18 12:14:06,751 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477e4bc5d/9ab7495f174846e489dd51aff6d051c7/FLAG09708c08e [2018-09-18 12:14:06,774 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/477e4bc5d/9ab7495f174846e489dd51aff6d051c7 [2018-09-18 12:14:06,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:14:06,794 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:14:06,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:14:06,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:14:06,803 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:14:06,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:14:06" (1/1) ... [2018-09-18 12:14:06,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5721ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:06, skipping insertion in model container [2018-09-18 12:14:06,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:14:06" (1/1) ... [2018-09-18 12:14:06,821 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:14:07,769 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:14:07,787 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:14:08,182 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:14:08,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08 WrapperNode [2018-09-18 12:14:08,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:14:08,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:14:08,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:14:08,378 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:14:08,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:08,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:08,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:14:08,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:14:08,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:14:08,687 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:14:09,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:09,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:09,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:09,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:09,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:09,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:09,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... [2018-09-18 12:14:09,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:14:09,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:14:09,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:14:09,528 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:14:09,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:14:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:14:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:14:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:14:09,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:14:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:14:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:14:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:14:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:14:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:14:09,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:14:22,969 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:14:22,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:14:22 BoogieIcfgContainer [2018-09-18 12:14:22,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:14:22,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:14:22,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:14:22,974 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:14:22,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:14:06" (1/3) ... [2018-09-18 12:14:22,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a97b999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:14:22, skipping insertion in model container [2018-09-18 12:14:22,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:14:08" (2/3) ... [2018-09-18 12:14:22,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a97b999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:14:22, skipping insertion in model container [2018-09-18 12:14:22,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:14:22" (3/3) ... [2018-09-18 12:14:22,978 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label38_true-unreach-call.c [2018-09-18 12:14:22,987 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:14:22,995 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:14:23,054 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:14:23,055 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:14:23,055 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:14:23,055 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:14:23,055 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:14:23,055 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:14:23,056 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:14:23,056 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:14:23,056 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:14:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-18 12:14:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-18 12:14:23,113 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:14:23,114 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:14:23,115 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:14:23,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1209803846, now seen corresponding path program 1 times [2018-09-18 12:14:23,124 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:14:23,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:23,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:14:23,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:23,168 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:14:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:14:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:14:23,723 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:14:23,724 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:14:23,724 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:14:23,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:14:23,745 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:14:23,746 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:14:23,749 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-18 12:14:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:14:37,463 INFO L93 Difference]: Finished difference Result 2137 states and 3966 transitions. [2018-09-18 12:14:37,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:14:37,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-09-18 12:14:37,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:14:37,502 INFO L225 Difference]: With dead ends: 2137 [2018-09-18 12:14:37,502 INFO L226 Difference]: Without dead ends: 1527 [2018-09-18 12:14:37,513 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:14:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2018-09-18 12:14:37,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1513. [2018-09-18 12:14:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2018-09-18 12:14:37,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2344 transitions. [2018-09-18 12:14:37,673 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2344 transitions. Word has length 59 [2018-09-18 12:14:37,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:14:37,674 INFO L480 AbstractCegarLoop]: Abstraction has 1513 states and 2344 transitions. [2018-09-18 12:14:37,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:14:37,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2344 transitions. [2018-09-18 12:14:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-18 12:14:37,688 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:14:37,689 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:14:37,689 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:14:37,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1204069705, now seen corresponding path program 1 times [2018-09-18 12:14:37,690 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:14:37,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:37,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:14:37,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:37,692 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:14:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:14:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:14:38,033 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:14:38,033 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:14:38,033 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:14:38,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:14:38,036 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:14:38,036 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:14:38,036 INFO L87 Difference]: Start difference. First operand 1513 states and 2344 transitions. Second operand 5 states. [2018-09-18 12:14:46,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:14:46,144 INFO L93 Difference]: Finished difference Result 4413 states and 7007 transitions. [2018-09-18 12:14:46,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:14:46,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-09-18 12:14:46,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:14:46,168 INFO L225 Difference]: With dead ends: 4413 [2018-09-18 12:14:46,168 INFO L226 Difference]: Without dead ends: 2906 [2018-09-18 12:14:46,175 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:14:46,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2018-09-18 12:14:46,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2873. [2018-09-18 12:14:46,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2018-09-18 12:14:46,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4204 transitions. [2018-09-18 12:14:46,300 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4204 transitions. Word has length 131 [2018-09-18 12:14:46,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:14:46,301 INFO L480 AbstractCegarLoop]: Abstraction has 2873 states and 4204 transitions. [2018-09-18 12:14:46,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:14:46,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4204 transitions. [2018-09-18 12:14:46,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-18 12:14:46,316 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:14:46,316 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:14:46,318 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:14:46,318 INFO L82 PathProgramCache]: Analyzing trace with hash 7018449, now seen corresponding path program 1 times [2018-09-18 12:14:46,318 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:14:46,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:46,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:14:46,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:14:46,320 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:14:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:14:46,831 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:14:46,832 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:14:46,832 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:14:46,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:14:46,844 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:14:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:14:46,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:16:00,074 WARN L178 SmtUtils]: Spent 1.21 m on a formula simplification. DAG size of input: 147 DAG size of output: 107 [2018-09-18 12:16:52,616 WARN L178 SmtUtils]: Spent 48.27 s on a formula simplification. DAG size of input: 107 DAG size of output: 80 [2018-09-18 12:16:52,938 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:16:52,938 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:16:57,530 WARN L178 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 55 DAG size of output: 16 [2018-09-18 12:16:57,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-09-18 12:16:58,893 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 1720 Received shutdown request... [2018-09-18 12:18:19,308 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-18 12:18:19,510 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:18:19,510 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:18:19,516 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:18:19,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:18:19 BoogieIcfgContainer [2018-09-18 12:18:19,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:18:19,518 INFO L168 Benchmark]: Toolchain (without parser) took 252730.25 ms. Allocated memory was 1.5 GB in the beginning and 7.5 GB in the end (delta: 6.0 GB). Free memory was 1.4 GB in the beginning and 4.6 GB in the end (delta: -3.2 GB). Peak memory consumption was 5.3 GB. Max. memory is 7.1 GB. [2018-09-18 12:18:19,519 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. [2018-09-18 12:18:19,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1581.89 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:18:19,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 309.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:18:19,521 INFO L168 Benchmark]: Boogie Preprocessor took 840.79 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 954.2 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:18:19,522 INFO L168 Benchmark]: RCFGBuilder took 13441.80 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 462.4 MB). Peak memory consumption was 462.4 MB. Max. memory is 7.1 GB. [2018-09-18 12:18:19,523 INFO L168 Benchmark]: TraceAbstraction took 236546.13 ms. Allocated memory was 2.5 GB in the beginning and 7.5 GB in the end (delta: 5.0 GB). Free memory was 1.9 GB in the beginning and 4.6 GB in the end (delta: -2.7 GB). Peak memory consumption was 4.8 GB. Max. memory is 7.1 GB. [2018-09-18 12:18:19,529 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 1581.89 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 309.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 840.79 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 954.2 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13441.80 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 462.4 MB). Peak memory consumption was 462.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236546.13 ms. Allocated memory was 2.5 GB in the beginning and 7.5 GB in the end (delta: 5.0 GB). Free memory was 1.9 GB in the beginning and 4.6 GB in the end (delta: -2.7 GB). Peak memory consumption was 4.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 164]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 164). Cancelled while BasicCegarLoop was analyzing trace of length 135 with TraceHistMax 2, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while CnfTransformerHelper was transforming 1720 disjunction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 236.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 21.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 737 SDtfs, 2870 SDslu, 566 SDs, 0 SdLazy, 5298 SolverSat, 1492 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 19.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2873occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 47 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 53796 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 52/52 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label38_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-18-19-544.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label38_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-18-19-544.csv Completed graceful shutdown