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/loop-lit/css2003_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:16:51,275 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:16:51,277 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:16:51,292 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:16:51,293 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:16:51,294 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:16:51,296 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:16:51,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:16:51,301 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:16:51,301 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:16:51,304 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:16:51,304 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:16:51,306 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:16:51,307 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:16:51,308 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:16:51,309 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:16:51,310 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:16:51,311 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:16:51,314 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:16:51,315 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:16:51,316 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:16:51,318 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:16:51,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 12:16:51,320 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 12:16:51,321 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 12:16:51,322 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 12:16:51,323 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 12:16:51,324 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 12:16:51,325 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 12:16:51,326 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 12:16:51,326 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 12:16:51,327 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 12:16:51,327 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 12:16:51,327 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 12:16:51,328 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 12:16:51,329 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 12:16:51,329 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 12:16:51,344 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:16:51,345 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:16:51,346 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:16:51,346 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:16:51,346 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:16:51,346 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:16:51,347 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:16:51,347 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:16:51,347 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:16:51,347 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:16:51,347 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:16:51,348 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:16:51,348 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:16:51,348 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:16:51,349 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:16:51,349 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:16:51,349 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:16:51,349 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:16:51,349 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:16:51,350 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:16:51,350 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:16:51,350 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:16:51,350 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:16:51,350 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:16:51,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:16:51,351 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:16:51,351 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:16:51,351 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:16:51,351 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:16:51,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:16:51,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:16:51,353 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:16:51,353 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:16:51,353 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:16:51,413 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:16:51,426 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:16:51,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:16:51,431 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:16:51,432 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:16:51,432 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/css2003_true-unreach-call_true-termination.c.i [2018-10-24 12:16:51,500 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c7cd5f429/2211a881993e4d81bb4feee830f5d6ff/FLAG3f180cf16 [2018-10-24 12:16:51,897 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:16:51,897 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/css2003_true-unreach-call_true-termination.c.i [2018-10-24 12:16:51,904 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c7cd5f429/2211a881993e4d81bb4feee830f5d6ff/FLAG3f180cf16 [2018-10-24 12:16:51,919 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/c7cd5f429/2211a881993e4d81bb4feee830f5d6ff [2018-10-24 12:16:51,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:16:51,933 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:16:51,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:16:51,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:16:51,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:16:51,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:16:51" (1/1) ... [2018-10-24 12:16:51,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629cda10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:51, skipping insertion in model container [2018-10-24 12:16:51,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:16:51" (1/1) ... [2018-10-24 12:16:51,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:16:51,979 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:16:52,200 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:16:52,204 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:16:52,227 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:16:52,244 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:16:52,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52 WrapperNode [2018-10-24 12:16:52,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:16:52,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:16:52,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:16:52,246 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:16:52,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:16:52,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:16:52,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:16:52,267 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:16:52,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (1/1) ... [2018-10-24 12:16:52,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:16:52,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:16:52,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:16:52,286 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:16:52,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (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 12:16:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:16:52,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:16:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:16:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:16:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:16:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:16:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:16:52,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:16:52,626 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:16:52,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:16:52 BoogieIcfgContainer [2018-10-24 12:16:52,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:16:52,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:16:52,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:16:52,639 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:16:52,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:16:51" (1/3) ... [2018-10-24 12:16:52,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46adf69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:16:52, skipping insertion in model container [2018-10-24 12:16:52,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:16:52" (2/3) ... [2018-10-24 12:16:52,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46adf69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:16:52, skipping insertion in model container [2018-10-24 12:16:52,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:16:52" (3/3) ... [2018-10-24 12:16:52,643 INFO L112 eAbstractionObserver]: Analyzing ICFG css2003_true-unreach-call_true-termination.c.i [2018-10-24 12:16:52,661 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:16:52,681 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:16:52,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:16:52,745 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:16:52,745 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:16:52,745 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:16:52,745 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:16:52,746 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:16:52,746 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:16:52,746 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:16:52,746 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:16:52,778 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-24 12:16:52,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-24 12:16:52,785 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:16:52,786 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:16:52,789 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:16:52,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:16:52,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1333459013, now seen corresponding path program 1 times [2018-10-24 12:16:52,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:16:52,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:16:52,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:16:52,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:16:52,848 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:16:52,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:16:53,128 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 12:16:53,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:16:53,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 12:16:53,131 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:16:53,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 12:16:53,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 12:16:53,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-24 12:16:53,151 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 7 states. [2018-10-24 12:16:53,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:16:53,359 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2018-10-24 12:16:53,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 12:16:53,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-10-24 12:16:53,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:16:53,369 INFO L225 Difference]: With dead ends: 36 [2018-10-24 12:16:53,370 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:16:53,375 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-10-24 12:16:53,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:16:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:16:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:16:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:16:53,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-10-24 12:16:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:16:53,406 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:16:53,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 12:16:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:16:53,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:16:53,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:16:53,786 WARN L179 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2018-10-24 12:16:53,828 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-24 12:16:53,828 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:16:53,828 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:16:53,828 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:16:53,828 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:16:53,829 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:16:53,829 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2018-10-24 12:16:53,829 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2018-10-24 12:16:53,829 INFO L421 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= .cse0 2) (<= 2 main_~i~0) (<= 1 .cse0))) [2018-10-24 12:16:53,829 INFO L421 ceAbstractionStarter]: At program point L20-1(lines 16 21) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~k~0))) (and (<= .cse0 2) (<= 1 main_~i~0) (<= 1 .cse0))) [2018-10-24 12:16:53,830 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-24 12:16:53,830 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 21) no Hoare annotation was computed. [2018-10-24 12:16:53,830 INFO L425 ceAbstractionStarter]: For program point L16-3(lines 16 21) no Hoare annotation was computed. [2018-10-24 12:16:53,830 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2018-10-24 12:16:53,830 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-24 12:16:53,831 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 12:16:53,831 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:16:53,831 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 12:16:53,831 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 12:16:53,831 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:16:53,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:16:53 BoogieIcfgContainer [2018-10-24 12:16:53,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:16:53,847 INFO L168 Benchmark]: Toolchain (without parser) took 1914.31 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -721.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2018-10-24 12:16:53,848 INFO L168 Benchmark]: CDTParser took 0.16 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 12:16:53,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-24 12:16:53,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.84 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. [2018-10-24 12:16:53,851 INFO L168 Benchmark]: Boogie Preprocessor took 17.89 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. [2018-10-24 12:16:53,851 INFO L168 Benchmark]: RCFGBuilder took 342.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -776.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-24 12:16:53,853 INFO L168 Benchmark]: TraceAbstraction took 1210.60 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. [2018-10-24 12:16:53,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 311.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 20.84 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. * Boogie Preprocessor took 17.89 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. * RCFGBuilder took 342.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -776.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1210.60 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (i + k <= 2 && 1 <= i) && 1 <= i + k - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 16 SDslu, 54 SDs, 0 SdLazy, 25 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 11 NumberOfFragments, 33 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 18 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 660 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 proved your program to be correct! Received shutdown request...