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/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 11:59:39,269 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 11:59:39,274 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 11:59:39,291 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 11:59:39,291 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 11:59:39,293 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 11:59:39,295 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 11:59:39,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 11:59:39,300 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 11:59:39,309 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 11:59:39,310 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 11:59:39,311 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 11:59:39,312 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 11:59:39,313 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 11:59:39,318 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 11:59:39,319 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 11:59:39,320 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 11:59:39,322 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 11:59:39,327 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 11:59:39,329 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 11:59:39,332 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 11:59:39,334 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 11:59:39,336 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 11:59:39,341 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 11:59:39,342 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 11:59:39,343 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 11:59:39,343 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 11:59:39,344 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 11:59:39,366 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 11:59:39,366 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 11:59:39,367 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 11:59:39,367 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 11:59:39,371 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 11:59:39,371 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 11:59:39,371 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 11:59:39,371 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 11:59:39,372 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 11:59:39,372 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 11:59:39,372 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 11:59:39,372 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 11:59:39,372 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 11:59:39,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 11:59:39,374 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 11:59:39,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 11:59:39,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 11:59:39,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 11:59:39,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 11:59:39,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:59:39,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 11:59:39,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 11:59:39,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 11:59:39,375 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 11:59:39,377 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 11:59:39,377 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 11:59:39,377 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 11:59:39,377 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 11:59:39,420 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 11:59:39,433 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 11:59:39,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 11:59:39,438 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 11:59:39,438 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 11:59:39,439 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i [2018-10-24 11:59:39,498 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7795c849c/292eb4dd5d76460db293ed13e51b21a2/FLAG05797b3ab [2018-10-24 11:59:39,954 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 11:59:39,955 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_true-unreach-call_true-termination.c.i [2018-10-24 11:59:39,962 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7795c849c/292eb4dd5d76460db293ed13e51b21a2/FLAG05797b3ab [2018-10-24 11:59:39,977 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7795c849c/292eb4dd5d76460db293ed13e51b21a2 [2018-10-24 11:59:39,987 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 11:59:39,989 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 11:59:39,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 11:59:39,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 11:59:39,994 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 11:59:39,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:39" (1/1) ... [2018-10-24 11:59:39,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a22afd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:39, skipping insertion in model container [2018-10-24 11:59:39,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:59:39" (1/1) ... [2018-10-24 11:59:40,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 11:59:40,031 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 11:59:40,238 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:59:40,241 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 11:59:40,259 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:59:40,274 INFO L193 MainTranslator]: Completed translation [2018-10-24 11:59:40,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40 WrapperNode [2018-10-24 11:59:40,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 11:59:40,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 11:59:40,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 11:59:40,276 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 11:59:40,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,292 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 11:59:40,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 11:59:40,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 11:59:40,314 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 11:59:40,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... [2018-10-24 11:59:40,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 11:59:40,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 11:59:40,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 11:59:40,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 11:59:40,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:59:40,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 11:59:40,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 11:59:40,700 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 11:59:40,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:40 BoogieIcfgContainer [2018-10-24 11:59:40,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 11:59:40,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 11:59:40,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 11:59:40,705 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 11:59:40,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:59:39" (1/3) ... [2018-10-24 11:59:40,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fef5cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:40, skipping insertion in model container [2018-10-24 11:59:40,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:59:40" (2/3) ... [2018-10-24 11:59:40,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fef5cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:59:40, skipping insertion in model container [2018-10-24 11:59:40,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:59:40" (3/3) ... [2018-10-24 11:59:40,709 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call_true-termination.c.i [2018-10-24 11:59:40,723 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 11:59:40,735 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 11:59:40,758 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 11:59:40,799 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 11:59:40,800 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 11:59:40,800 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 11:59:40,800 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 11:59:40,801 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 11:59:40,801 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 11:59:40,801 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 11:59:40,801 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 11:59:40,801 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 11:59:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-10-24 11:59:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-24 11:59:40,826 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:40,827 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:40,830 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:40,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:40,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1807122250, now seen corresponding path program 1 times [2018-10-24 11:59:40,839 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:40,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:40,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:40,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:40,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:40,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:59:40,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 11:59:40,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 11:59:41,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 11:59:41,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:59:41,007 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2018-10-24 11:59:41,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:41,023 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2018-10-24 11:59:41,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 11:59:41,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2018-10-24 11:59:41,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:41,034 INFO L225 Difference]: With dead ends: 23 [2018-10-24 11:59:41,034 INFO L226 Difference]: Without dead ends: 9 [2018-10-24 11:59:41,038 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:59:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-24 11:59:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-24 11:59:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-24 11:59:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-24 11:59:41,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-10-24 11:59:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:41,077 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-24 11:59:41,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 11:59:41,077 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-24 11:59:41,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-24 11:59:41,078 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:41,078 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:41,078 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:41,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:41,079 INFO L82 PathProgramCache]: Analyzing trace with hash 178585489, now seen corresponding path program 1 times [2018-10-24 11:59:41,079 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:41,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:41,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:41,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:41,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:41,259 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-10-24 11:59:41,383 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2018-10-24 11:59:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:41,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:59:41,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 11:59:41,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 11:59:41,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 11:59:41,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:59:41,435 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-10-24 11:59:41,669 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-24 11:59:41,874 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 11:59:41,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:41,924 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-10-24 11:59:41,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:59:41,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-24 11:59:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:41,927 INFO L225 Difference]: With dead ends: 15 [2018-10-24 11:59:41,927 INFO L226 Difference]: Without dead ends: 11 [2018-10-24 11:59:41,928 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-24 11:59:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-10-24 11:59:41,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-24 11:59:41,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-24 11:59:41,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-24 11:59:41,934 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-10-24 11:59:41,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:41,934 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-24 11:59:41,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 11:59:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-24 11:59:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-24 11:59:41,937 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:59:41,937 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:59:41,938 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:59:41,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:59:41,938 INFO L82 PathProgramCache]: Analyzing trace with hash -132192533, now seen corresponding path program 1 times [2018-10-24 11:59:41,938 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:59:41,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:59:41,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:41,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:41,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:59:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:42,137 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-10-24 11:59:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:42,231 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 11:59:42,232 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 11:59:42,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:59:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:59:42,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:59:42,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:59:42,504 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 11:59:42,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-10-24 11:59:42,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 11:59:42,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 11:59:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-24 11:59:42,507 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2018-10-24 11:59:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:59:42,757 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-10-24 11:59:42,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 11:59:42,758 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2018-10-24 11:59:42,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:59:42,758 INFO L225 Difference]: With dead ends: 15 [2018-10-24 11:59:42,758 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 11:59:42,759 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2018-10-24 11:59:42,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 11:59:42,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 11:59:42,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 11:59:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 11:59:42,762 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-10-24 11:59:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:59:42,763 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 11:59:42,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 11:59:42,763 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 11:59:42,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 11:59:42,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 11:59:43,079 WARN L179 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 9 [2018-10-24 11:59:43,082 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 11:59:43,082 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 11:59:43,083 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 23) no Hoare annotation was computed. [2018-10-24 11:59:43,083 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 20) no Hoare annotation was computed. [2018-10-24 11:59:43,083 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 20) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-10-24 11:59:43,083 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 10 25) no Hoare annotation was computed. [2018-10-24 11:59:43,084 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 11:59:43,084 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-24 11:59:43,084 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-24 11:59:43,084 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 11:59:43,084 INFO L428 ceAbstractionStarter]: At program point L24(lines 10 25) the Hoare annotation is: true [2018-10-24 11:59:43,084 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-24 11:59:43,085 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 11:59:43,085 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-24 11:59:43,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:59:43 BoogieIcfgContainer [2018-10-24 11:59:43,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 11:59:43,099 INFO L168 Benchmark]: Toolchain (without parser) took 3111.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -685.2 MB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:43,101 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:59:43,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:43,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.67 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:59:43,103 INFO L168 Benchmark]: Boogie Preprocessor took 27.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:59:43,104 INFO L168 Benchmark]: RCFGBuilder took 359.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:43,106 INFO L168 Benchmark]: TraceAbstraction took 2397.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-10-24 11:59:43,111 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 285.60 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 37.67 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 27.29 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 359.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2397.19 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 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: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x + j <= y + i && y + i <= x + j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 12 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 17 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 1997 SizeOfPredicates, 6 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...