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-INT.epf -i ../../../trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 15:38:45,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 15:38:45,265 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 15:38:45,281 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 15:38:45,282 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 15:38:45,285 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 15:38:45,286 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 15:38:45,288 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 15:38:45,290 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 15:38:45,291 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 15:38:45,292 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 15:38:45,292 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 15:38:45,293 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 15:38:45,294 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 15:38:45,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 15:38:45,296 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 15:38:45,296 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 15:38:45,298 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 15:38:45,300 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 15:38:45,302 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 15:38:45,303 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 15:38:45,304 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 15:38:45,307 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 15:38:45,307 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 15:38:45,307 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 15:38:45,308 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 15:38:45,309 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 15:38:45,310 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 15:38:45,311 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 15:38:45,312 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 15:38:45,315 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 15:38:45,316 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 15:38:45,316 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 15:38:45,316 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 15:38:45,317 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 15:38:45,318 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 15:38:45,318 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 15:38:45,333 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 15:38:45,333 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 15:38:45,334 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 15:38:45,334 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 15:38:45,334 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 15:38:45,334 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 15:38:45,335 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 15:38:45,335 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 15:38:45,335 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 15:38:45,335 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 15:38:45,335 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 15:38:45,335 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 15:38:45,338 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 15:38:45,338 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 15:38:45,338 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 15:38:45,339 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 15:38:45,339 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 15:38:45,339 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 15:38:45,339 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 15:38:45,339 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 15:38:45,340 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 15:38:45,340 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 15:38:45,340 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 15:38:45,340 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 15:38:45,340 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 15:38:45,340 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 15:38:45,341 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 15:38:45,341 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 15:38:45,341 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 15:38:45,341 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 15:38:45,341 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 15:38:45,342 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 15:38:45,342 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 15:38:45,342 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 15:38:45,401 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 15:38:45,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 15:38:45,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 15:38:45,417 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 15:38:45,418 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 15:38:45,418 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-10-27 15:38:45,482 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/db98ac4f3/662c5b63c57a4370ac751f8b297e6f10/FLAG7cfb0a65b [2018-10-27 15:38:45,936 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 15:38:45,937 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2018-10-27 15:38:45,944 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/db98ac4f3/662c5b63c57a4370ac751f8b297e6f10/FLAG7cfb0a65b [2018-10-27 15:38:45,959 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/db98ac4f3/662c5b63c57a4370ac751f8b297e6f10 [2018-10-27 15:38:45,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 15:38:45,971 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 15:38:45,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 15:38:45,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 15:38:45,977 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 15:38:45,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:45" (1/1) ... [2018-10-27 15:38:45,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2694af23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:45, skipping insertion in model container [2018-10-27 15:38:45,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:38:45" (1/1) ... [2018-10-27 15:38:45,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 15:38:46,017 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 15:38:46,191 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 15:38:46,195 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 15:38:46,211 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 15:38:46,224 INFO L193 MainTranslator]: Completed translation [2018-10-27 15:38:46,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46 WrapperNode [2018-10-27 15:38:46,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 15:38:46,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 15:38:46,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 15:38:46,226 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 15:38:46,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 15:38:46,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 15:38:46,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 15:38:46,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 15:38:46,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (1/1) ... [2018-10-27 15:38:46,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 15:38:46,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 15:38:46,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 15:38:46,268 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 15:38:46,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (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 [2018-10-27 15:38:46,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 15:38:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 15:38:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 15:38:46,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 15:38:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 15:38:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 15:38:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 15:38:46,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 15:38:46,758 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 15:38:46,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:46 BoogieIcfgContainer [2018-10-27 15:38:46,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 15:38:46,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 15:38:46,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 15:38:46,763 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 15:38:46,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:38:45" (1/3) ... [2018-10-27 15:38:46,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2f6472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:46, skipping insertion in model container [2018-10-27 15:38:46,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:38:46" (2/3) ... [2018-10-27 15:38:46,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a2f6472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:38:46, skipping insertion in model container [2018-10-27 15:38:46,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:38:46" (3/3) ... [2018-10-27 15:38:46,767 INFO L112 eAbstractionObserver]: Analyzing ICFG nest-if3_true-unreach-call_true-termination.i [2018-10-27 15:38:46,776 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 15:38:46,784 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 15:38:46,800 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 15:38:46,831 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 15:38:46,831 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 15:38:46,831 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 15:38:46,831 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 15:38:46,832 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 15:38:46,832 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 15:38:46,832 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 15:38:46,832 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 15:38:46,848 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-10-27 15:38:46,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-27 15:38:46,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:38:46,855 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 15:38:46,857 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:38:46,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:38:46,862 INFO L82 PathProgramCache]: Analyzing trace with hash -2056501113, now seen corresponding path program 1 times [2018-10-27 15:38:46,864 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:38:46,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:38:46,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:38:46,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:38:46,914 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:38:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:38:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 15:38:47,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 15:38:47,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 15:38:47,125 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 15:38:47,128 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 15:38:47,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 15:38:47,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 15:38:47,143 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 6 states. [2018-10-27 15:38:47,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 15:38:47,355 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2018-10-27 15:38:47,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 15:38:47,356 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-10-27 15:38:47,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 15:38:47,363 INFO L225 Difference]: With dead ends: 50 [2018-10-27 15:38:47,363 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 15:38:47,367 INFO L605 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 [2018-10-27 15:38:47,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 15:38:47,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 15:38:47,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 15:38:47,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 15:38:47,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-10-27 15:38:47,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 15:38:47,394 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 15:38:47,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 15:38:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 15:38:47,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 15:38:47,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 15:38:47,525 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 15:38:47,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 15:38:47,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 15:38:47,526 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 15:38:47,526 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 15:38:47,526 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 15:38:47,527 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 24) no Hoare annotation was computed. [2018-10-27 15:38:47,528 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 22) no Hoare annotation was computed. [2018-10-27 15:38:47,528 INFO L421 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2018-10-27 15:38:47,528 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 18 20) no Hoare annotation was computed. [2018-10-27 15:38:47,528 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-10-27 15:38:47,529 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-10-27 15:38:47,529 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-10-27 15:38:47,529 INFO L421 ceAbstractionStarter]: At program point L17-4(lines 17 23) the Hoare annotation is: (<= 1 main_~l~0) [2018-10-27 15:38:47,529 INFO L425 ceAbstractionStarter]: For program point L17-5(lines 10 24) no Hoare annotation was computed. [2018-10-27 15:38:47,529 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 24) the Hoare annotation is: true [2018-10-27 15:38:47,529 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-10-27 15:38:47,530 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-27 15:38:47,530 INFO L421 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: (and (<= 1 main_~l~0) (<= 1 main_~i~0)) [2018-10-27 15:38:47,530 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-27 15:38:47,531 INFO L425 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2018-10-27 15:38:47,532 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-27 15:38:47,532 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-27 15:38:47,532 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-27 15:38:47,532 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-27 15:38:47,532 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-27 15:38:47,532 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-27 15:38:47,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:38:47 BoogieIcfgContainer [2018-10-27 15:38:47,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 15:38:47,553 INFO L168 Benchmark]: Toolchain (without parser) took 1582.15 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -738.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2018-10-27 15:38:47,556 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-27 15:38:47,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.04 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. [2018-10-27 15:38:47,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.98 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. [2018-10-27 15:38:47,561 INFO L168 Benchmark]: Boogie Preprocessor took 21.38 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. [2018-10-27 15:38:47,563 INFO L168 Benchmark]: RCFGBuilder took 491.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-27 15:38:47,564 INFO L168 Benchmark]: TraceAbstraction took 791.93 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: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB. [2018-10-27 15:38:47,572 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.04 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 19.98 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.38 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 491.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 791.93 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: 56.3 MB). Peak memory consumption was 56.3 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, 0.1s 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...