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-acceleration/simple_true-unreach-call4.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 16:05:13,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 16:05:13,464 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 16:05:13,476 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 16:05:13,477 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 16:05:13,478 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 16:05:13,479 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 16:05:13,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 16:05:13,483 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 16:05:13,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 16:05:13,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 16:05:13,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 16:05:13,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 16:05:13,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 16:05:13,489 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 16:05:13,489 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 16:05:13,490 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 16:05:13,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 16:05:13,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 16:05:13,496 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 16:05:13,497 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 16:05:13,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 16:05:13,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 16:05:13,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 16:05:13,501 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 16:05:13,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 16:05:13,505 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 16:05:13,506 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 16:05:13,508 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 16:05:13,511 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 16:05:13,512 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 16:05:13,513 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-22 16:05:13,518 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 [2018-10-22 16:05:13,539 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 16:05:13,540 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 16:05:13,541 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 16:05:13,541 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 16:05:13,541 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 16:05:13,541 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 16:05:13,541 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 16:05:13,542 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 16:05:13,542 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-22 16:05:13,542 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 16:05:13,542 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 16:05:13,543 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 16:05:13,543 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 16:05:13,544 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 16:05:13,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 16:05:13,544 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 16:05:13,544 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 16:05:13,544 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 16:05:13,544 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 16:05:13,545 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 16:05:13,545 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 16:05:13,545 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 16:05:13,545 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 16:05:13,545 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 16:05:13,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 16:05:13,546 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 16:05:13,546 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 16:05:13,546 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 16:05:13,547 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 16:05:13,547 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 16:05:13,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 16:05:13,547 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 16:05:13,547 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 16:05:13,548 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-22 16:05:13,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 16:05:13,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 16:05:13,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 16:05:13,617 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 16:05:13,617 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 16:05:13,618 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call4.i [2018-10-22 16:05:13,686 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e92072eda/28d2fe85a95145b8aaca1995b708bcf4/FLAGca0ec954f [2018-10-22 16:05:14,211 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 16:05:14,212 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call4.i [2018-10-22 16:05:14,218 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e92072eda/28d2fe85a95145b8aaca1995b708bcf4/FLAGca0ec954f [2018-10-22 16:05:14,234 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e92072eda/28d2fe85a95145b8aaca1995b708bcf4 [2018-10-22 16:05:14,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 16:05:14,250 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 16:05:14,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 16:05:14,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 16:05:14,255 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 16:05:14,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b2b241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14, skipping insertion in model container [2018-10-22 16:05:14,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 16:05:14,295 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 16:05:14,475 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:05:14,480 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 16:05:14,497 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:05:14,513 INFO L193 MainTranslator]: Completed translation [2018-10-22 16:05:14,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14 WrapperNode [2018-10-22 16:05:14,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 16:05:14,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 16:05:14,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 16:05:14,514 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 16:05:14,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 16:05:14,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 16:05:14,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 16:05:14,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 16:05:14,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (1/1) ... [2018-10-22 16:05:14,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 16:05:14,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 16:05:14,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 16:05:14,558 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 16:05:14,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (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 [2018-10-22 16:05:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 16:05:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 16:05:14,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 16:05:14,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 16:05:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 16:05:14,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 16:05:14,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 16:05:14,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 16:05:14,874 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 16:05:14,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:05:14 BoogieIcfgContainer [2018-10-22 16:05:14,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 16:05:14,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 16:05:14,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 16:05:14,879 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 16:05:14,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 04:05:14" (1/3) ... [2018-10-22 16:05:14,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d45509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:05:14, skipping insertion in model container [2018-10-22 16:05:14,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:14" (2/3) ... [2018-10-22 16:05:14,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d45509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:05:14, skipping insertion in model container [2018-10-22 16:05:14,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:05:14" (3/3) ... [2018-10-22 16:05:14,883 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_true-unreach-call4.i [2018-10-22 16:05:14,892 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 16:05:14,899 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 16:05:14,912 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 16:05:14,946 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 16:05:14,946 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 16:05:14,947 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 16:05:14,947 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 16:05:14,947 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 16:05:14,947 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 16:05:14,947 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 16:05:14,948 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 16:05:14,948 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 16:05:14,967 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-22 16:05:14,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-22 16:05:14,973 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:05:14,974 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:05:14,977 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:05:14,983 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:14,984 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times [2018-10-22 16:05:14,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:05:15,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:15,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:15,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:15,035 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:05:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:15,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:05:15,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 16:05:15,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 16:05:15,096 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:05:15,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 16:05:15,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 16:05:15,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 16:05:15,114 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-10-22 16:05:15,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:05:15,136 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-10-22 16:05:15,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 16:05:15,137 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-22 16:05:15,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:05:15,145 INFO L225 Difference]: With dead ends: 29 [2018-10-22 16:05:15,145 INFO L226 Difference]: Without dead ends: 12 [2018-10-22 16:05:15,149 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 [2018-10-22 16:05:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-22 16:05:15,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-22 16:05:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-22 16:05:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-22 16:05:15,187 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-10-22 16:05:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:05:15,188 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-22 16:05:15,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 16:05:15,188 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-22 16:05:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-22 16:05:15,189 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:05:15,189 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:05:15,190 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:05:15,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:15,190 INFO L82 PathProgramCache]: Analyzing trace with hash -571410792, now seen corresponding path program 1 times [2018-10-22 16:05:15,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:05:15,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:15,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:15,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:15,192 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:05:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:05:15,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 16:05:15,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 16:05:15,389 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:05:15,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 16:05:15,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 16:05:15,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 16:05:15,392 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2018-10-22 16:05:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:05:15,441 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-10-22 16:05:15,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 16:05:15,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-22 16:05:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:05:15,443 INFO L225 Difference]: With dead ends: 19 [2018-10-22 16:05:15,443 INFO L226 Difference]: Without dead ends: 14 [2018-10-22 16:05:15,446 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 16:05:15,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-10-22 16:05:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-10-22 16:05:15,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-22 16:05:15,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-22 16:05:15,457 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-10-22 16:05:15,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:05:15,457 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-22 16:05:15,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 16:05:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-22 16:05:15,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 16:05:15,459 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:05:15,459 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:05:15,461 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:05:15,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:15,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1625028318, now seen corresponding path program 1 times [2018-10-22 16:05:15,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:05:15,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:15,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:15,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:15,464 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:05:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:15,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:05:15,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:05:15,711 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 16:05:15,712 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 14 with the following transitions: [2018-10-22 16:05:15,714 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [20], [23], [25], [31], [32], [33], [35] [2018-10-22 16:05:15,764 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 16:05:15,764 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 16:05:15,882 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-22 16:05:16,207 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 16:05:16,210 INFO L272 AbstractInterpreter]: Visited 11 different actions 83 times. Merged at 3 different actions 37 times. Widened at 1 different actions 9 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-10-22 16:05:16,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:16,263 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 16:05:16,328 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-10-22 16:05:16,328 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 16:05:16,495 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 16:05:16,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 16:05:16,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2018-10-22 16:05:16,496 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:05:16,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 16:05:16,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 16:05:16,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 16:05:16,498 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2018-10-22 16:05:16,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:05:16,655 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-10-22 16:05:16,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 16:05:16,656 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-22 16:05:16,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:05:16,656 INFO L225 Difference]: With dead ends: 14 [2018-10-22 16:05:16,657 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 16:05:16,657 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 16:05:16,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 16:05:16,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 16:05:16,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 16:05:16,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 16:05:16,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-10-22 16:05:16,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:05:16,660 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 16:05:16,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 16:05:16,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 16:05:16,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 16:05:16,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 16:05:16,793 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 16:05:16,793 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:05:16,793 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:05:16,793 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 16:05:16,793 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 16:05:16,794 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 16:05:16,794 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 14) the Hoare annotation is: true [2018-10-22 16:05:16,794 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 14) no Hoare annotation was computed. [2018-10-22 16:05:16,794 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 14) no Hoare annotation was computed. [2018-10-22 16:05:16,794 INFO L425 ceAbstractionStarter]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2018-10-22 16:05:16,794 INFO L421 ceAbstractionStarter]: At program point L10-3(lines 10 12) the Hoare annotation is: (and (<= (* 2 main_~x~0) 536870880) (= (mod main_~x~0 2) 0)) [2018-10-22 16:05:16,795 INFO L421 ceAbstractionStarter]: At program point L10-4(lines 10 12) the Hoare annotation is: (and (<= (* 2 main_~x~0) 536870880) (= (mod main_~x~0 2) 0)) [2018-10-22 16:05:16,795 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-22 16:05:16,795 INFO L425 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-10-22 16:05:16,795 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-10-22 16:05:16,795 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-10-22 16:05:16,796 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-22 16:05:16,796 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-10-22 16:05:16,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 04:05:16 BoogieIcfgContainer [2018-10-22 16:05:16,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 16:05:16,806 INFO L168 Benchmark]: Toolchain (without parser) took 2558.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -690.4 MB). Peak memory consumption was 46.7 MB. Max. memory is 7.1 GB. [2018-10-22 16:05:16,809 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-22 16:05:16,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.16 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. [2018-10-22 16:05:16,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.40 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. [2018-10-22 16:05:16,812 INFO L168 Benchmark]: Boogie Preprocessor took 21.74 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. [2018-10-22 16:05:16,812 INFO L168 Benchmark]: RCFGBuilder took 317.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -787.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-22 16:05:16,813 INFO L168 Benchmark]: TraceAbstraction took 1929.52 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: 86.2 MB). Peak memory consumption was 86.2 MB. Max. memory is 7.1 GB. [2018-10-22 16:05:16,819 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.16 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 21.40 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 21.74 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 317.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -787.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1929.52 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: 86.2 MB). Peak memory consumption was 86.2 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: 2 * x <= 536870880 && x % 2 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 1 SDslu, 27 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s 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, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.875 AbsIntWeakeningRatio, 0.25 AbsIntAvgWeakeningVarsNumRemoved, 0.5833333333333334 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s 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...