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/nest-if3_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 05:05:21,675 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 05:05:21,681 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 05:05:21,694 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 05:05:21,694 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 05:05:21,695 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 05:05:21,696 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 05:05:21,698 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 05:05:21,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 05:05:21,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 05:05:21,702 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 05:05:21,702 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 05:05:21,703 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 05:05:21,704 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 05:05:21,705 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 05:05:21,708 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 05:05:21,708 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 05:05:21,710 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 05:05:21,712 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 05:05:21,717 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 05:05:21,718 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 05:05:21,720 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 05:05:21,725 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 05:05:21,736 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 05:05:21,760 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 05:05:21,761 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 05:05:21,762 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 05:05:21,762 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 05:05:21,762 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 05:05:21,763 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 05:05:21,763 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 05:05:21,763 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 05:05:21,763 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 05:05:21,764 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 05:05:21,764 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 05:05:21,764 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 05:05:21,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 05:05:21,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 05:05:21,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 05:05:21,765 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 05:05:21,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 05:05:21,767 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 05:05:21,767 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 05:05:21,767 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 05:05:21,767 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 05:05:21,768 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 05:05:21,768 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 05:05:21,768 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 05:05:21,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 05:05:21,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 05:05:21,769 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 05:05:21,769 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 05:05:21,769 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 05:05:21,770 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 05:05:21,770 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 05:05:21,770 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 05:05:21,770 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 05:05:21,770 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 05:05:21,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 05:05:21,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 05:05:21,850 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 05:05:21,852 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 05:05:21,852 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 05:05:21,853 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-11-07 05:05:21,932 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d37174e37/56120c983dd04587b455193ea1fccc0d/FLAG59dc48f34 [2018-11-07 05:05:22,405 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 05:05:22,406 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-11-07 05:05:22,413 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d37174e37/56120c983dd04587b455193ea1fccc0d/FLAG59dc48f34 [2018-11-07 05:05:22,426 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d37174e37/56120c983dd04587b455193ea1fccc0d [2018-11-07 05:05:22,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 05:05:22,439 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 05:05:22,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 05:05:22,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 05:05:22,444 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 05:05:22,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406348dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22, skipping insertion in model container [2018-11-07 05:05:22,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 05:05:22,481 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 05:05:22,725 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:05:22,729 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 05:05:22,751 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 05:05:22,771 INFO L193 MainTranslator]: Completed translation [2018-11-07 05:05:22,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22 WrapperNode [2018-11-07 05:05:22,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 05:05:22,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 05:05:22,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 05:05:22,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 05:05:22,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,798 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 05:05:22,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 05:05:22,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 05:05:22,799 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 05:05:22,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (1/1) ... [2018-11-07 05:05:22,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 05:05:22,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 05:05:22,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 05:05:22,831 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 05:05:22,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (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 05:05:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 05:05:22,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 05:05:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 05:05:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 05:05:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 05:05:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 05:05:22,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-07 05:05:22,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-07 05:05:23,357 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 05:05:23,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:05:23 BoogieIcfgContainer [2018-11-07 05:05:23,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 05:05:23,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 05:05:23,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 05:05:23,363 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 05:05:23,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:05:22" (1/3) ... [2018-11-07 05:05:23,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c4cfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:05:23, skipping insertion in model container [2018-11-07 05:05:23,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:05:22" (2/3) ... [2018-11-07 05:05:23,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c4cfb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:05:23, skipping insertion in model container [2018-11-07 05:05:23,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:05:23" (3/3) ... [2018-11-07 05:05:23,367 INFO L112 eAbstractionObserver]: Analyzing ICFG nest-if3_true-unreach-call_true-termination.i [2018-11-07 05:05:23,378 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 05:05:23,387 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 05:05:23,402 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 05:05:23,436 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 05:05:23,437 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 05:05:23,437 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 05:05:23,437 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 05:05:23,437 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 05:05:23,437 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 05:05:23,438 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 05:05:23,438 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 05:05:23,457 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-07 05:05:23,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-07 05:05:23,472 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 05:05:23,473 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 05:05:23,476 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 05:05:23,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 05:05:23,482 INFO L82 PathProgramCache]: Analyzing trace with hash -2056501113, now seen corresponding path program 1 times [2018-11-07 05:05:23,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 05:05:23,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:05:23,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 05:05:23,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 05:05:23,535 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 05:05:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 05:05:23,777 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 05:05:23,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 05:05:23,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 05:05:23,780 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 05:05:23,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 05:05:23,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 05:05:23,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-07 05:05:23,801 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 6 states. [2018-11-07 05:05:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 05:05:24,012 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2018-11-07 05:05:24,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 05:05:24,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-07 05:05:24,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 05:05:24,021 INFO L225 Difference]: With dead ends: 50 [2018-11-07 05:05:24,021 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 05:05:24,025 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-07 05:05:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 05:05:24,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 05:05:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 05:05:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 05:05:24,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-07 05:05:24,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 05:05:24,051 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 05:05:24,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 05:05:24,052 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 05:05:24,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 05:05:24,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 05:05:24,182 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-07 05:05:24,182 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:05:24,182 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-07 05:05:24,183 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-07 05:05:24,183 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-07 05:05:24,183 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-07 05:05:24,183 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2018-11-07 05:05:24,183 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 22) no Hoare annotation was computed. [2018-11-07 05:05:24,184 INFO L421 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2018-11-07 05:05:24,184 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 18 20) no Hoare annotation was computed. [2018-11-07 05:05:24,184 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-11-07 05:05:24,184 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-07 05:05:24,184 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-11-07 05:05:24,186 INFO L421 ceAbstractionStarter]: At program point L17-4(lines 17 23) the Hoare annotation is: (<= 1 main_~l~0) [2018-11-07 05:05:24,186 INFO L425 ceAbstractionStarter]: For program point L17-5(lines 10 24) no Hoare annotation was computed. [2018-11-07 05:05:24,186 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2018-11-07 05:05:24,186 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-11-07 05:05:24,187 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-07 05:05:24,187 INFO L421 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2018-11-07 05:05:24,187 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-07 05:05:24,187 INFO L425 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2018-11-07 05:05:24,187 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-07 05:05:24,187 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:05:24,188 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-07 05:05:24,188 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-07 05:05:24,188 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-07 05:05:24,188 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-07 05:05:24,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 05:05:24 BoogieIcfgContainer [2018-11-07 05:05:24,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 05:05:24,210 INFO L168 Benchmark]: Toolchain (without parser) took 1771.83 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -751.3 MB). Peak memory consumption was 538.2 kB. Max. memory is 7.1 GB. [2018-11-07 05:05:24,214 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:05:24,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.51 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 05:05:24,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.71 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 05:05:24,217 INFO L168 Benchmark]: Boogie Preprocessor took 31.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 05:05:24,218 INFO L168 Benchmark]: RCFGBuilder took 527.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2018-11-07 05:05:24,220 INFO L168 Benchmark]: TraceAbstraction took 850.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2018-11-07 05:05:24,226 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 332.51 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 25.71 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. * Boogie Preprocessor took 31.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 527.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 751.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -808.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 850.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 46.6 MB). Peak memory consumption was 46.6 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: 17]: Loop Invariant Derived loop invariant: 1 <= l - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= l && 1 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 23 SDslu, 78 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 22 HoareAnnotationTreeSize, 9 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 495 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...