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-invgen/down_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:15:05,787 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:15:05,789 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:15:05,802 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:15:05,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:15:05,803 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:15:05,805 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:15:05,807 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:15:05,808 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:15:05,809 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:15:05,810 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:15:05,810 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:15:05,811 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:15:05,812 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:15:05,814 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:15:05,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:15:05,815 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:15:05,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:15:05,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:15:05,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:15:05,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:15:05,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:15:05,826 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 12:15:05,826 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 12:15:05,827 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 12:15:05,827 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 12:15:05,829 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 12:15:05,829 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 12:15:05,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 12:15:05,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 12:15:05,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 12:15:05,833 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 12:15:05,835 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 12:15:05,851 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:15:05,851 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:15:05,852 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:15:05,852 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:15:05,852 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:15:05,853 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:15:05,853 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:15:05,853 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:15:05,853 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:15:05,853 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:15:05,854 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:15:05,854 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:15:05,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:15:05,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:15:05,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:15:05,856 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:15:05,856 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:15:05,856 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:15:05,856 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:15:05,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:15:05,857 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:15:05,858 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:15:05,858 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:15:05,858 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:15:05,858 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:15:05,859 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:15:05,859 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:15:05,859 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:15:05,859 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:15:05,859 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:15:05,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:15:05,860 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:15:05,860 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:15:05,861 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:15:05,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:15:05,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:15:05,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:15:05,943 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:15:05,943 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:15:05,944 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-10-24 12:15:06,008 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/91022ba03/f4afd0cce0c84eab95e9fcbf92df5837/FLAGcf51a8891 [2018-10-24 12:15:06,470 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:15:06,471 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-10-24 12:15:06,481 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/91022ba03/f4afd0cce0c84eab95e9fcbf92df5837/FLAGcf51a8891 [2018-10-24 12:15:06,503 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/91022ba03/f4afd0cce0c84eab95e9fcbf92df5837 [2018-10-24 12:15:06,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:15:06,517 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:15:06,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:15:06,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:15:06,526 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:15:06,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc0cadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06, skipping insertion in model container [2018-10-24 12:15:06,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:15:06,569 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:15:06,747 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:15:06,751 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:15:06,769 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:15:06,786 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:15:06,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06 WrapperNode [2018-10-24 12:15:06,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:15:06,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:15:06,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:15:06,788 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:15:06,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,805 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:15:06,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:15:06,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:15:06,811 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:15:06,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (1/1) ... [2018-10-24 12:15:06,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:15:06,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:15:06,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:15:06,831 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:15:06,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (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 12:15:06,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:15:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:15:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:15:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:15:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:15:06,894 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:15:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:15:06,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:15:07,191 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:15:07,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:15:07 BoogieIcfgContainer [2018-10-24 12:15:07,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:15:07,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:15:07,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:15:07,197 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:15:07,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:15:06" (1/3) ... [2018-10-24 12:15:07,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584b5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:15:07, skipping insertion in model container [2018-10-24 12:15:07,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:15:06" (2/3) ... [2018-10-24 12:15:07,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@584b5e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:15:07, skipping insertion in model container [2018-10-24 12:15:07,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:15:07" (3/3) ... [2018-10-24 12:15:07,200 INFO L112 eAbstractionObserver]: Analyzing ICFG down_true-unreach-call_true-termination.i [2018-10-24 12:15:07,210 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:15:07,218 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:15:07,236 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:15:07,271 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:15:07,272 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:15:07,272 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:15:07,272 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:15:07,272 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:15:07,273 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:15:07,273 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:15:07,273 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:15:07,292 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-24 12:15:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 12:15:07,299 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:15:07,300 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:15:07,303 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:15:07,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:15:07,311 INFO L82 PathProgramCache]: Analyzing trace with hash 123585964, now seen corresponding path program 1 times [2018-10-24 12:15:07,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:15:07,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:07,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:15:07,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:07,368 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:15:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:15:07,429 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 12:15:07,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:15:07,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 12:15:07,432 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:15:07,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 12:15:07,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 12:15:07,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:15:07,452 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-10-24 12:15:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:15:07,475 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2018-10-24 12:15:07,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 12:15:07,477 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-10-24 12:15:07,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:15:07,486 INFO L225 Difference]: With dead ends: 39 [2018-10-24 12:15:07,486 INFO L226 Difference]: Without dead ends: 18 [2018-10-24 12:15:07,490 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 12:15:07,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-24 12:15:07,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-24 12:15:07,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-24 12:15:07,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-10-24 12:15:07,532 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-10-24 12:15:07,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:15:07,533 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-10-24 12:15:07,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 12:15:07,533 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-10-24 12:15:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-24 12:15:07,534 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:15:07,534 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:15:07,535 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:15:07,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:15:07,535 INFO L82 PathProgramCache]: Analyzing trace with hash -203615370, now seen corresponding path program 1 times [2018-10-24 12:15:07,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:15:07,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:07,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:15:07,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:07,537 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:15:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:15:07,810 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 12:15:07,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:15:07,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 12:15:07,811 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:15:07,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 12:15:07,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 12:15:07,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 12:15:07,814 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2018-10-24 12:15:08,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:15:08,110 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-10-24 12:15:08,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 12:15:08,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-10-24 12:15:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:15:08,111 INFO L225 Difference]: With dead ends: 33 [2018-10-24 12:15:08,111 INFO L226 Difference]: Without dead ends: 20 [2018-10-24 12:15:08,112 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-24 12:15:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-10-24 12:15:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-10-24 12:15:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-24 12:15:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-10-24 12:15:08,118 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2018-10-24 12:15:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:15:08,119 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-10-24 12:15:08,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 12:15:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-10-24 12:15:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-24 12:15:08,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:15:08,120 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:15:08,120 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:15:08,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:15:08,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1025157488, now seen corresponding path program 1 times [2018-10-24 12:15:08,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:15:08,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:08,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:15:08,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:08,123 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:15:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:15:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:15:08,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:15:08,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 12:15:08,244 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:15:08,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 12:15:08,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 12:15:08,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-24 12:15:08,249 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states. [2018-10-24 12:15:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:15:08,481 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-10-24 12:15:08,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 12:15:08,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-10-24 12:15:08,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:15:08,489 INFO L225 Difference]: With dead ends: 34 [2018-10-24 12:15:08,489 INFO L226 Difference]: Without dead ends: 32 [2018-10-24 12:15:08,491 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 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 12:15:08,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-24 12:15:08,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-10-24 12:15:08,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-24 12:15:08,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-10-24 12:15:08,511 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2018-10-24 12:15:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:15:08,512 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-10-24 12:15:08,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 12:15:08,512 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-10-24 12:15:08,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-24 12:15:08,514 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:15:08,514 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:15:08,515 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:15:08,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:15:08,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1392733261, now seen corresponding path program 1 times [2018-10-24 12:15:08,516 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:15:08,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:08,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:15:08,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:15:08,517 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:15:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:15:08,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:15:08,663 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:15:08,663 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 12:15:08,664 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-10-24 12:15:08,666 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [18], [22], [28], [30], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52] [2018-10-24 12:15:08,720 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 12:15:08,720 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 12:15:09,195 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 12:15:09,196 INFO L272 AbstractInterpreter]: Visited 18 different actions 129 times. Merged at 8 different actions 59 times. Widened at 3 different actions 9 times. Found 8 fixpoints after 2 different actions. Largest state had 9 variables. [2018-10-24 12:15:09,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:15:09,208 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 12:15:09,335 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 59.03% of their original sizes. [2018-10-24 12:15:09,335 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 12:15:09,592 INFO L413 sIntCurrentIteration]: We have 23 unified AI predicates [2018-10-24 12:15:09,592 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 12:15:09,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 12:15:09,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-10-24 12:15:09,594 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:15:09,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 12:15:09,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 12:15:09,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-24 12:15:09,596 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2018-10-24 12:15:10,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:15:10,474 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-10-24 12:15:10,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 12:15:10,475 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-10-24 12:15:10,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:15:10,476 INFO L225 Difference]: With dead ends: 28 [2018-10-24 12:15:10,476 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:15:10,477 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-24 12:15:10,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:15:10,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:15:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:15:10,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:15:10,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-10-24 12:15:10,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:15:10,479 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:15:10,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 12:15:10,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:15:10,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:15:10,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:15:11,098 WARN L179 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2018-10-24 12:15:11,149 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-24 12:15:11,149 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:15:11,149 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:15:11,149 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:15:11,150 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:15:11,150 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:15:11,150 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2018-10-24 12:15:11,150 INFO L421 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (and (<= (* 2 main_~k~0) 4294967294) (<= main_~j~0 main_~k~0) (<= 2 (* 2 main_~j~0))) [2018-10-24 12:15:11,150 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-10-24 12:15:11,151 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 18) no Hoare annotation was computed. [2018-10-24 12:15:11,151 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2018-10-24 12:15:11,151 INFO L421 ceAbstractionStarter]: At program point L15-3(lines 15 18) the Hoare annotation is: (let ((.cse0 (* 2 main_~n~0)) (.cse1 (<= main_~k~0 main_~i~0))) (or (and (<= main_~n~0 (+ main_~i~0 2147483647)) (<= main_~i~0 0) (<= 0 (* 2 main_~k~0)) (<= 0 (+ .cse0 4294967296)) .cse1) (and (<= .cse0 4294967294) (<= main_~i~0 (+ main_~n~0 2147483648)) (<= (+ main_~i~0 main_~k~0) 4294967294) (<= main_~i~0 main_~k~0) .cse1 (<= 1 main_~k~0)))) [2018-10-24 12:15:11,151 INFO L425 ceAbstractionStarter]: For program point L15-4(lines 15 18) no Hoare annotation was computed. [2018-10-24 12:15:11,151 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2018-10-24 12:15:11,152 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2018-10-24 12:15:11,152 INFO L421 ceAbstractionStarter]: At program point L20-3(lines 20 24) the Hoare annotation is: (or (let ((.cse0 (* 2 main_~k~0))) (and (<= main_~k~0 (+ main_~j~0 2147483648)) (<= .cse0 4294967294) (<= 0 .cse0) (<= main_~j~0 main_~k~0))) (and (<= main_~n~0 0) (<= main_~j~0 0) (<= main_~i~0 0))) [2018-10-24 12:15:11,152 INFO L425 ceAbstractionStarter]: For program point L20-4(lines 20 24) no Hoare annotation was computed. [2018-10-24 12:15:11,153 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-24 12:15:11,153 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:15:11,153 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 12:15:11,153 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 12:15:11,153 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 12:15:11,154 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:15:11,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:15:11 BoogieIcfgContainer [2018-10-24 12:15:11,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:15:11,167 INFO L168 Benchmark]: Toolchain (without parser) took 4651.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -612.0 MB). Peak memory consumption was 138.3 MB. Max. memory is 7.1 GB. [2018-10-24 12:15:11,168 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. [2018-10-24 12:15:11,169 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.22 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 12:15:11,170 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.29 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 12:15:11,171 INFO L168 Benchmark]: Boogie Preprocessor took 19.82 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 12:15:11,171 INFO L168 Benchmark]: RCFGBuilder took 361.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2018-10-24 12:15:11,172 INFO L168 Benchmark]: TraceAbstraction took 3972.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 MB. Max. memory is 7.1 GB. [2018-10-24 12:15:11,178 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 269.22 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 22.29 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 19.82 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 361.71 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3972.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 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: 20]: Loop Invariant Derived loop invariant: (((k <= j + 2147483648 && 2 * k <= 4294967294) && 0 <= 2 * k) && j <= k) || ((n <= 0 && j <= 0) && i <= 0) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((n <= i + 2147483647 && i <= 0) && 0 <= 2 * k) && 0 <= 2 * n + 4294967296) && k <= i) || (((((2 * n <= 4294967294 && i <= n + 2147483648) && i + k <= 4294967294) && i <= k) && k <= i) && 1 <= k) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 34 SDslu, 142 SDs, 0 SdLazy, 54 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, 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, 0.9227053140096619 AbsIntWeakeningRatio, 0.5217391304347826 AbsIntAvgWeakeningVarsNumRemoved, 9.217391304347826 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 99 HoareAnnotationTreeSize, 11 FomulaSimplifications, 264 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 195 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 2003 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 7/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...