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-INT-LIM.epf -i ../../../trunk/examples/svcomp/loops/sum03_true-unreach-call_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 20:30:12,311 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 20:30:12,314 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 20:30:12,331 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 20:30:12,332 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 20:30:12,333 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 20:30:12,334 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 20:30:12,336 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 20:30:12,339 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 20:30:12,340 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 20:30:12,342 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 20:30:12,342 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 20:30:12,343 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 20:30:12,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 20:30:12,346 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 20:30:12,353 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 20:30:12,354 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 20:30:12,360 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 20:30:12,362 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 20:30:12,367 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 20:30:12,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 20:30:12,370 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 20:30:12,376 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 20:30:12,376 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 20:30:12,376 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 20:30:12,377 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 20:30:12,378 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 20:30:12,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 20:30:12,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 20:30:12,385 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 20:30:12,385 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 20:30:12,386 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-12 20:30:12,388 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 20:30:12,408 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 20:30:12,408 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 20:30:12,409 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 20:30:12,409 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 20:30:12,409 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 20:30:12,409 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 20:30:12,410 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 20:30:12,410 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 20:30:12,410 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 20:30:12,410 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 20:30:12,410 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 20:30:12,411 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 20:30:12,411 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 20:30:12,411 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 20:30:12,412 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 20:30:12,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 20:30:12,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 20:30:12,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 20:30:12,412 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 20:30:12,413 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 20:30:12,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 20:30:12,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 20:30:12,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 20:30:12,413 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 20:30:12,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 20:30:12,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 20:30:12,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 20:30:12,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 20:30:12,414 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 20:30:12,415 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 20:30:12,415 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 20:30:12,415 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 20:30:12,415 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 20:30:12,415 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 20:30:12,416 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 20:30:12,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 20:30:12,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 20:30:12,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 20:30:12,475 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 20:30:12,476 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 20:30:12,476 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03_true-unreach-call_false-termination.i [2018-11-12 20:30:12,538 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527975e0f/a8da3f4f3fc741a49cfcbe2ed43349da/FLAG04a617f42 [2018-11-12 20:30:12,975 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 20:30:12,976 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03_true-unreach-call_false-termination.i [2018-11-12 20:30:12,991 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527975e0f/a8da3f4f3fc741a49cfcbe2ed43349da/FLAG04a617f42 [2018-11-12 20:30:13,012 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527975e0f/a8da3f4f3fc741a49cfcbe2ed43349da [2018-11-12 20:30:13,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 20:30:13,026 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 20:30:13,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 20:30:13,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 20:30:13,032 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 20:30:13,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6150c6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13, skipping insertion in model container [2018-11-12 20:30:13,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 20:30:13,076 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 20:30:13,265 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:30:13,269 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 20:30:13,286 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 20:30:13,299 INFO L193 MainTranslator]: Completed translation [2018-11-12 20:30:13,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13 WrapperNode [2018-11-12 20:30:13,300 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 20:30:13,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 20:30:13,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 20:30:13,301 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 20:30:13,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 20:30:13,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 20:30:13,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 20:30:13,320 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 20:30:13,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (1/1) ... [2018-11-12 20:30:13,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 20:30:13,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 20:30:13,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 20:30:13,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 20:30:13,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (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 [2018-11-12 20:30:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 20:30:13,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 20:30:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 20:30:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 20:30:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 20:30:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 20:30:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-12 20:30:13,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-12 20:30:13,665 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 20:30:13,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:30:13 BoogieIcfgContainer [2018-11-12 20:30:13,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 20:30:13,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 20:30:13,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 20:30:13,670 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 20:30:13,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:30:13" (1/3) ... [2018-11-12 20:30:13,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f569c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:30:13, skipping insertion in model container [2018-11-12 20:30:13,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:30:13" (2/3) ... [2018-11-12 20:30:13,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f569c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:30:13, skipping insertion in model container [2018-11-12 20:30:13,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:30:13" (3/3) ... [2018-11-12 20:30:13,674 INFO L112 eAbstractionObserver]: Analyzing ICFG sum03_true-unreach-call_false-termination.i [2018-11-12 20:30:13,685 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 20:30:13,694 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 20:30:13,711 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 20:30:13,745 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 20:30:13,745 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 20:30:13,745 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 20:30:13,745 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 20:30:13,746 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 20:30:13,746 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 20:30:13,746 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 20:30:13,746 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 20:30:13,765 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-12 20:30:13,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-12 20:30:13,770 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 20:30:13,771 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 20:30:13,773 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 20:30:13,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 20:30:13,779 INFO L82 PathProgramCache]: Analyzing trace with hash -569563750, now seen corresponding path program 1 times [2018-11-12 20:30:13,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 20:30:13,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:13,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 20:30:13,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 20:30:13,827 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 20:30:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 20:30:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 20:30:14,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 20:30:14,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 20:30:14,157 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 20:30:14,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 20:30:14,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 20:30:14,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 20:30:14,177 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-12 20:30:14,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 20:30:14,467 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2018-11-12 20:30:14,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-12 20:30:14,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-12 20:30:14,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 20:30:14,479 INFO L225 Difference]: With dead ends: 25 [2018-11-12 20:30:14,480 INFO L226 Difference]: Without dead ends: 0 [2018-11-12 20:30:14,486 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 20:30:14,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-12 20:30:14,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-12 20:30:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-12 20:30:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-12 20:30:14,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-12 20:30:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 20:30:14,518 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-12 20:30:14,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 20:30:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-12 20:30:14,519 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-12 20:30:14,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-12 20:30:14,590 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-12 20:30:14,591 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-12 20:30:14,591 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-12 20:30:14,591 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-12 20:30:14,591 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-12 20:30:14,591 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-12 20:30:14,592 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 18) the Hoare annotation is: true [2018-11-12 20:30:14,592 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 18) no Hoare annotation was computed. [2018-11-12 20:30:14,592 INFO L421 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2018-11-12 20:30:14,592 INFO L421 ceAbstractionStarter]: At program point L16-1(lines 13 17) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= .cse0 main_~sn~0) (<= main_~sn~0 .cse0))) [2018-11-12 20:30:14,593 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2018-11-12 20:30:14,593 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 9 18) no Hoare annotation was computed. [2018-11-12 20:30:14,593 INFO L425 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-11-12 20:30:14,593 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-11-12 20:30:14,593 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-11-12 20:30:14,594 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-12 20:30:14,594 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-12 20:30:14,594 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-11-12 20:30:14,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:30:14 BoogieIcfgContainer [2018-11-12 20:30:14,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 20:30:14,609 INFO L168 Benchmark]: Toolchain (without parser) took 1583.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -756.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 20:30:14,611 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. [2018-11-12 20:30:14,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.41 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. [2018-11-12 20:30:14,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.08 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. [2018-11-12 20:30:14,614 INFO L168 Benchmark]: Boogie Preprocessor took 20.18 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. [2018-11-12 20:30:14,615 INFO L168 Benchmark]: RCFGBuilder took 324.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2018-11-12 20:30:14,616 INFO L168 Benchmark]: TraceAbstraction took 940.89 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2018-11-12 20:30:14,621 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 272.41 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 19.08 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 20.18 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 324.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -800.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 940.89 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: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 2 * x <= sn && sn <= 2 * x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 27 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 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...