java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:33:12,885 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:33:12,887 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:33:12,899 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:33:12,899 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:33:12,900 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:33:12,902 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:33:12,903 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:33:12,905 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:33:12,906 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:33:12,907 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:33:12,907 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:33:12,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:33:12,909 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:33:12,910 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:33:12,911 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:33:12,911 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:33:12,913 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:33:12,915 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:33:12,917 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:33:12,918 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:33:12,919 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:33:12,922 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 12:33:12,922 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 12:33:12,922 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 12:33:12,923 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 12:33:12,924 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 12:33:12,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 12:33:12,926 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 12:33:12,927 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 12:33:12,927 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 12:33:12,928 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 12:33:12,930 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 12:33:12,946 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:33:12,946 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:33:12,947 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:33:12,947 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:33:12,947 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:33:12,947 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:33:12,948 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 12:33:12,948 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:33:12,948 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 12:33:12,948 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:33:12,948 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:33:12,949 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:33:12,949 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:33:12,949 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:33:12,950 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:33:12,950 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:33:12,950 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:33:12,950 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:33:12,950 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:33:12,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:33:12,951 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:33:12,951 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:33:12,951 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:33:12,951 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:33:12,952 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:33:12,952 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:33:12,952 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:33:12,952 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:33:12,952 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:33:12,953 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:33:12,953 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:33:12,953 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:33:12,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:33:12,953 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:33:12,954 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:33:12,954 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:33:13,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:33:13,027 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:33:13,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:33:13,034 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:33:13,034 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:33:13,035 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call1.i [2018-10-24 12:33:13,100 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8bc8cae6e/3585c01687ff41569eb07111a8315a07/FLAG91f027716 [2018-10-24 12:33:13,539 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:33:13,540 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call1.i [2018-10-24 12:33:13,547 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8bc8cae6e/3585c01687ff41569eb07111a8315a07/FLAG91f027716 [2018-10-24 12:33:13,565 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8bc8cae6e/3585c01687ff41569eb07111a8315a07 [2018-10-24 12:33:13,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:33:13,579 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:33:13,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:33:13,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:33:13,584 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:33:13,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64834cc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13, skipping insertion in model container [2018-10-24 12:33:13,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:33:13,619 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:33:13,776 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:33:13,781 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:33:13,797 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:33:13,811 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:33:13,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13 WrapperNode [2018-10-24 12:33:13,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:33:13,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:33:13,813 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:33:13,813 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:33:13,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:33:13,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:33:13,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:33:13,835 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:33:13,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (1/1) ... [2018-10-24 12:33:13,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:33:13,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:33:13,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:33:13,856 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:33:13,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (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 12:33:13,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:33:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:33:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:33:13,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:33:13,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:33:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:33:13,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:33:13,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:33:14,150 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:33:14,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:14 BoogieIcfgContainer [2018-10-24 12:33:14,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:33:14,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:33:14,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:33:14,157 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:33:14,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:33:13" (1/3) ... [2018-10-24 12:33:14,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a9a328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:14, skipping insertion in model container [2018-10-24 12:33:14,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:13" (2/3) ... [2018-10-24 12:33:14,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29a9a328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:14, skipping insertion in model container [2018-10-24 12:33:14,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:14" (3/3) ... [2018-10-24 12:33:14,161 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_true-unreach-call1.i [2018-10-24 12:33:14,174 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:33:14,186 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:33:14,204 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:33:14,235 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:33:14,236 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:33:14,236 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:33:14,236 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:33:14,236 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:33:14,236 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:33:14,236 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:33:14,237 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:33:14,253 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-24 12:33:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-24 12:33:14,259 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:14,260 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:14,262 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:14,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:14,267 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times [2018-10-24 12:33:14,269 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:14,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:14,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:14,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:14,319 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:14,373 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 12:33:14,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:33:14,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 12:33:14,376 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:33:14,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 12:33:14,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 12:33:14,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:33:14,393 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-10-24 12:33:14,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:14,415 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-10-24 12:33:14,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 12:33:14,416 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-24 12:33:14,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:14,424 INFO L225 Difference]: With dead ends: 29 [2018-10-24 12:33:14,424 INFO L226 Difference]: Without dead ends: 12 [2018-10-24 12:33:14,427 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:33:14,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-24 12:33:14,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-24 12:33:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-24 12:33:14,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-24 12:33:14,462 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-10-24 12:33:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:14,462 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-24 12:33:14,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 12:33:14,463 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-24 12:33:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-24 12:33:14,464 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:14,464 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:14,464 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:14,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:14,465 INFO L82 PathProgramCache]: Analyzing trace with hash -571410792, now seen corresponding path program 1 times [2018-10-24 12:33:14,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:14,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:14,467 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:14,562 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 12:33:14,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:33:14,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 12:33:14,565 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:33:14,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 12:33:14,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 12:33:14,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 12:33:14,568 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-10-24 12:33:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:14,599 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-10-24 12:33:14,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 12:33:14,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-24 12:33:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:14,601 INFO L225 Difference]: With dead ends: 19 [2018-10-24 12:33:14,601 INFO L226 Difference]: Without dead ends: 14 [2018-10-24 12:33:14,602 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 12:33:14,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-24 12:33:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-24 12:33:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-24 12:33:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-24 12:33:14,607 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-10-24 12:33:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:14,607 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-24 12:33:14,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 12:33:14,607 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-24 12:33:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 12:33:14,608 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:14,608 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:14,609 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:14,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:14,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1625028318, now seen corresponding path program 1 times [2018-10-24 12:33:14,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:14,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:14,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:14,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:14,611 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:33:14,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:33:14,815 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 12:33:14,816 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-10-24 12:33:14,818 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [20], [23], [25], [31], [32], [33], [35] [2018-10-24 12:33:14,853 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 12:33:14,853 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 12:33:15,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 12:33:15,089 INFO L272 AbstractInterpreter]: Visited 11 different actions 17 times. Merged at 2 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-10-24 12:33:15,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:15,133 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 12:33:15,217 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-10-24 12:33:15,217 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 12:33:15,355 INFO L413 sIntCurrentIteration]: We have 12 unified AI predicates [2018-10-24 12:33:15,355 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 12:33:15,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 12:33:15,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-10-24 12:33:15,357 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:33:15,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 12:33:15,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 12:33:15,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-24 12:33:15,358 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 6 states. [2018-10-24 12:33:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:15,477 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-24 12:33:15,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 12:33:15,477 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-10-24 12:33:15,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:15,478 INFO L225 Difference]: With dead ends: 14 [2018-10-24 12:33:15,478 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:33:15,479 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-24 12:33:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:33:15,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:33:15,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:33:15,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:33:15,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-10-24 12:33:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:15,480 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:33:15,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 12:33:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:33:15,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:33:15,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:33:15,616 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-24 12:33:15,616 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:33:15,617 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:33:15,617 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:33:15,617 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:33:15,618 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:33:15,619 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 14) the Hoare annotation is: true [2018-10-24 12:33:15,619 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 14) no Hoare annotation was computed. [2018-10-24 12:33:15,619 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 14) no Hoare annotation was computed. [2018-10-24 12:33:15,620 INFO L425 ceAbstractionStarter]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2018-10-24 12:33:15,620 INFO L421 ceAbstractionStarter]: At program point L10-3(lines 10 12) the Hoare annotation is: (= (mod main_~x~0 2) 0) [2018-10-24 12:33:15,620 INFO L421 ceAbstractionStarter]: At program point L10-4(lines 10 12) the Hoare annotation is: (and (not (= main_~x~0 0)) (= (mod main_~x~0 2) 0)) [2018-10-24 12:33:15,620 INFO L425 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-10-24 12:33:15,620 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-10-24 12:33:15,620 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-10-24 12:33:15,622 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-24 12:33:15,623 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-24 12:33:15,623 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-10-24 12:33:15,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:33:15 BoogieIcfgContainer [2018-10-24 12:33:15,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:33:15,633 INFO L168 Benchmark]: Toolchain (without parser) took 2055.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -711.5 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:15,636 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 12:33:15,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.94 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 12:33:15,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.30 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 12:33:15,639 INFO L168 Benchmark]: Boogie Preprocessor took 21.42 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 12:33:15,641 INFO L168 Benchmark]: RCFGBuilder took 294.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:15,642 INFO L168 Benchmark]: TraceAbstraction took 1480.90 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: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:15,651 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 231.94 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 21.30 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 21.42 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 294.59 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 730.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1480.90 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: 61.0 MB). Peak memory consumption was 61.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 10]: Loop Invariant Derived loop invariant: x % 2 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 3 SDslu, 30 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8333333333333334 AbsIntWeakeningRatio, 0.25 AbsIntAvgWeakeningVarsNumRemoved, 0.08333333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 20 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 733 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...