java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -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-df4b876 [2018-11-07 05:04:35,976 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 05:04:35,979 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 05:04:35,993 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 05:04:35,993 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 05:04:35,996 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 05:04:35,997 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 05:04:36,000 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 05:04:36,001 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 05:04:36,002 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 05:04:36,003 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 05:04:36,003 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 05:04:36,004 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 05:04:36,005 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 05:04:36,006 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 05:04:36,007 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 05:04:36,008 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 05:04:36,009 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 05:04:36,011 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 05:04:36,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 05:04:36,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 05:04:36,015 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 05:04:36,018 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 05:04:36,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 05:04:36,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 05:04:36,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 05:04:36,021 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 05:04:36,022 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 05:04:36,023 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 05:04:36,024 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 05:04:36,024 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 05:04:36,027 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 05:04:36,027 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 05:04:36,028 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 05:04:36,028 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 05:04:36,029 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 05:04:36,029 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 05:04:36,057 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 05:04:36,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 05:04:36,058 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 05:04:36,058 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 05:04:36,059 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 05:04:36,059 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 05:04:36,059 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 05:04:36,059 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 05:04:36,060 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 05:04:36,060 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 05:04:36,060 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 05:04:36,060 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 05:04:36,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 05:04:36,061 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 05:04:36,061 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 05:04:36,061 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 05:04:36,061 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 05:04:36,063 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 05:04:36,063 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 05:04:36,063 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 05:04:36,063 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 05:04:36,063 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 05:04:36,064 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 05:04:36,064 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 05:04:36,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 05:04:36,064 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 05:04:36,064 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 05:04:36,064 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 05:04:36,065 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 05:04:36,065 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 05:04:36,065 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 05:04:36,066 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 05:04:36,066 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 05:04:36,066 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 05:04:36,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 05:04:36,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 05:04:36,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 05:04:36,151 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 05:04:36,152 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 05:04:36,152 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-11-07 05:04:36,215 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e796b41/e593c170198f4f72827367a0350e63f2/FLAG6900ed1ee [2018-11-07 05:04:36,638 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 05:04:36,639 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/down_true-unreach-call_true-termination.i [2018-11-07 05:04:36,645 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e796b41/e593c170198f4f72827367a0350e63f2/FLAG6900ed1ee [2018-11-07 05:04:36,660 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4e796b41/e593c170198f4f72827367a0350e63f2 [2018-11-07 05:04:36,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 05:04:36,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 05:04:36,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 05:04:36,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 05:04:36,677 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 05:04:36,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:36,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e83fd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36, skipping insertion in model container [2018-11-07 05:04:36,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:36,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 05:04:36,711 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 05:04:36,940 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:04:36,944 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 05:04:36,964 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:04:36,979 INFO L193 MainTranslator]: Completed translation [2018-11-07 05:04:36,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36 WrapperNode [2018-11-07 05:04:36,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 05:04:36,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 05:04:36,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 05:04:36,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 05:04:36,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:36,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:36,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 05:04:36,998 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 05:04:36,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 05:04:36,998 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 05:04:37,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:37,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:37,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:37,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:37,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:37,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:37,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... [2018-11-07 05:04:37,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 05:04:37,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 05:04:37,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 05:04:37,017 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 05:04:37,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 05:04:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 05:04:37,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 05:04:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 05:04:37,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 05:04:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 05:04:37,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 05:04:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 05:04:37,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 05:04:37,401 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 05:04:37,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:04:37 BoogieIcfgContainer [2018-11-07 05:04:37,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 05:04:37,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 05:04:37,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 05:04:37,406 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 05:04:37,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:04:36" (1/3) ... [2018-11-07 05:04:37,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404687cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:04:37, skipping insertion in model container [2018-11-07 05:04:37,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:04:36" (2/3) ... [2018-11-07 05:04:37,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404687cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:04:37, skipping insertion in model container [2018-11-07 05:04:37,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:04:37" (3/3) ... [2018-11-07 05:04:37,409 INFO L112 eAbstractionObserver]: Analyzing ICFG down_true-unreach-call_true-termination.i [2018-11-07 05:04:37,419 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 05:04:37,426 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 05:04:37,439 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 05:04:37,470 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 05:04:37,470 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 05:04:37,471 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 05:04:37,471 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 05:04:37,471 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 05:04:37,471 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 05:04:37,471 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 05:04:37,472 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 05:04:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-07 05:04:37,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-07 05:04:37,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:04:37,500 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:04:37,503 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:04:37,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:04:37,509 INFO L82 PathProgramCache]: Analyzing trace with hash 123585964, now seen corresponding path program 1 times [2018-11-07 05:04:37,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:04:37,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:37,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:04:37,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:37,559 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:04:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:04:37,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:04:37,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:04:37,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-07 05:04:37,622 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:04:37,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-07 05:04:37,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-07 05:04:37,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-07 05:04:37,642 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-07 05:04:37,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:04:37,666 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2018-11-07 05:04:37,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-07 05:04:37,667 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2018-11-07 05:04:37,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:04:37,675 INFO L225 Difference]: With dead ends: 39 [2018-11-07 05:04:37,675 INFO L226 Difference]: Without dead ends: 18 [2018-11-07 05:04:37,679 INFO L604 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 [2018-11-07 05:04:37,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-07 05:04:37,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-07 05:04:37,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-07 05:04:37,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-07 05:04:37,718 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-11-07 05:04:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:04:37,719 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-07 05:04:37,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-07 05:04:37,719 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-07 05:04:37,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-07 05:04:37,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:04:37,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:04:37,721 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:04:37,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:04:37,721 INFO L82 PathProgramCache]: Analyzing trace with hash -203615370, now seen corresponding path program 1 times [2018-11-07 05:04:37,722 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:04:37,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:37,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:04:37,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:37,723 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:04:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:04:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:04:37,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:04:37,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 05:04:37,965 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:04:37,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 05:04:37,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 05:04:37,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 05:04:37,968 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 5 states. [2018-11-07 05:04:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:04:38,235 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-11-07 05:04:38,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-07 05:04:38,236 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-11-07 05:04:38,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:04:38,237 INFO L225 Difference]: With dead ends: 33 [2018-11-07 05:04:38,237 INFO L226 Difference]: Without dead ends: 20 [2018-11-07 05:04:38,240 INFO L604 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 [2018-11-07 05:04:38,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-07 05:04:38,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-07 05:04:38,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-07 05:04:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-07 05:04:38,248 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 14 [2018-11-07 05:04:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:04:38,249 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-07 05:04:38,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 05:04:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-07 05:04:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-07 05:04:38,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:04:38,251 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:04:38,252 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:04:38,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:04:38,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1025157488, now seen corresponding path program 1 times [2018-11-07 05:04:38,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:04:38,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:38,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:04:38,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:38,254 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:04:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:04:38,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:04:38,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:04:38,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 05:04:38,397 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:04:38,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 05:04:38,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 05:04:38,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-07 05:04:38,399 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states. [2018-11-07 05:04:38,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:04:38,630 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2018-11-07 05:04:38,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 05:04:38,632 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-07 05:04:38,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:04:38,636 INFO L225 Difference]: With dead ends: 34 [2018-11-07 05:04:38,637 INFO L226 Difference]: Without dead ends: 32 [2018-11-07 05:04:38,637 INFO L604 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 [2018-11-07 05:04:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-07 05:04:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-11-07 05:04:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-07 05:04:38,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-11-07 05:04:38,657 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 16 [2018-11-07 05:04:38,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:04:38,657 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-11-07 05:04:38,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 05:04:38,657 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-07 05:04:38,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-07 05:04:38,659 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:04:38,659 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:04:38,659 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:04:38,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:04:38,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1392733261, now seen corresponding path program 1 times [2018-11-07 05:04:38,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:04:38,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:38,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:04:38,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:04:38,664 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:04:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:04:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 05:04:38,807 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 05:04:38,807 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 05:04:38,808 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-11-07 05:04:38,811 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [14], [18], [22], [28], [30], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52] [2018-11-07 05:04:38,863 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 05:04:38,863 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 05:04:39,259 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 05:04:39,264 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. [2018-11-07 05:04:39,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:04:39,290 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 05:04:39,399 INFO L227 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 59.03% of their original sizes. [2018-11-07 05:04:39,399 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 05:04:39,660 INFO L415 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2018-11-07 05:04:39,660 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 05:04:39,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 05:04:39,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-07 05:04:39,662 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:04:39,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 05:04:39,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 05:04:39,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-11-07 05:04:39,663 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2018-11-07 05:04:40,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:04:40,550 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2018-11-07 05:04:40,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-07 05:04:40,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-11-07 05:04:40,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:04:40,551 INFO L225 Difference]: With dead ends: 28 [2018-11-07 05:04:40,551 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 05:04:40,553 INFO L604 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 [2018-11-07 05:04:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 05:04:40,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 05:04:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 05:04:40,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 05:04:40,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-11-07 05:04:40,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:04:40,555 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 05:04:40,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 05:04:40,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 05:04:40,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 05:04:40,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 05:04:41,174 WARN L179 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2018-11-07 05:04:41,222 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-07 05:04:41,222 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:04:41,223 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:04:41,223 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 05:04:41,223 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 05:04:41,223 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 05:04:41,223 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2018-11-07 05:04:41,223 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))) [2018-11-07 05:04:41,224 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-07 05:04:41,224 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 18) no Hoare annotation was computed. [2018-11-07 05:04:41,224 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2018-11-07 05:04:41,224 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)))) [2018-11-07 05:04:41,224 INFO L425 ceAbstractionStarter]: For program point L15-4(lines 15 18) no Hoare annotation was computed. [2018-11-07 05:04:41,225 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2018-11-07 05:04:41,225 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2018-11-07 05:04:41,225 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))) [2018-11-07 05:04:41,225 INFO L425 ceAbstractionStarter]: For program point L20-4(lines 20 24) no Hoare annotation was computed. [2018-11-07 05:04:41,225 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-07 05:04:41,226 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-07 05:04:41,226 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:04:41,226 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-07 05:04:41,226 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-07 05:04:41,226 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:04:41,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:04:41 BoogieIcfgContainer [2018-11-07 05:04:41,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 05:04:41,239 INFO L168 Benchmark]: Toolchain (without parser) took 4567.51 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -580.3 MB). Peak memory consumption was 141.6 MB. Max. memory is 7.1 GB. [2018-11-07 05:04:41,240 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-07 05:04:41,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.47 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. [2018-11-07 05:04:41,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.72 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. [2018-11-07 05:04:41,243 INFO L168 Benchmark]: Boogie Preprocessor took 18.71 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. [2018-11-07 05:04:41,243 INFO L168 Benchmark]: RCFGBuilder took 385.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-11-07 05:04:41,244 INFO L168 Benchmark]: TraceAbstraction took 3835.27 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 183.4 MB). Peak memory consumption was 183.4 MB. Max. memory is 7.1 GB. [2018-11-07 05:04:41,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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. * CACSL2BoogieTranslator took 306.47 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 17.72 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 18.71 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 385.24 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 721.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3835.27 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 183.4 MB). Peak memory consumption was 183.4 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, 3.7s 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, 0.3s 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, 0.4s 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, 0.4s 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...