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/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b6335f6 [2018-10-23 09:29:17,674 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 09:29:17,676 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 09:29:17,688 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 09:29:17,689 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 09:29:17,690 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 09:29:17,691 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 09:29:17,693 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 09:29:17,695 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 09:29:17,695 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 09:29:17,696 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 09:29:17,697 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 09:29:17,698 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 09:29:17,699 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 09:29:17,700 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 09:29:17,701 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 09:29:17,701 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 09:29:17,703 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 09:29:17,705 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 09:29:17,707 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 09:29:17,708 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 09:29:17,709 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 09:29:17,712 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 09:29:17,721 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 [2018-10-23 09:29:17,748 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 09:29:17,748 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 09:29:17,750 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 09:29:17,750 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 09:29:17,751 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 09:29:17,751 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 09:29:17,751 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 09:29:17,752 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 09:29:17,752 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 09:29:17,752 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 09:29:17,752 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 09:29:17,752 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 09:29:17,753 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 09:29:17,753 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 09:29:17,753 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 09:29:17,753 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 09:29:17,753 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 09:29:17,754 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 09:29:17,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 09:29:17,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 09:29:17,755 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 09:29:17,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 09:29:17,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 09:29:17,756 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 09:29:17,756 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 09:29:17,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 09:29:17,757 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 09:29:17,757 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 09:29:17,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 09:29:17,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 09:29:17,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 09:29:17,845 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 09:29:17,845 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 09:29:17,846 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-23 09:29:17,909 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/65e1ec411/3ac7b7c97d9b466da01fe01777384d29/FLAGf74d8c010 [2018-10-23 09:29:18,357 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 09:29:18,362 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-23 09:29:18,369 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/65e1ec411/3ac7b7c97d9b466da01fe01777384d29/FLAGf74d8c010 [2018-10-23 09:29:18,385 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/65e1ec411/3ac7b7c97d9b466da01fe01777384d29 [2018-10-23 09:29:18,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 09:29:18,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 09:29:18,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 09:29:18,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 09:29:18,407 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 09:29:18,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bedfbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18, skipping insertion in model container [2018-10-23 09:29:18,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 09:29:18,440 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 09:29:18,643 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:29:18,648 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 09:29:18,676 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 09:29:18,698 INFO L193 MainTranslator]: Completed translation [2018-10-23 09:29:18,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18 WrapperNode [2018-10-23 09:29:18,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 09:29:18,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 09:29:18,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 09:29:18,700 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 09:29:18,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 09:29:18,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 09:29:18,750 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 09:29:18,750 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 09:29:18,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (1/1) ... [2018-10-23 09:29:18,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 09:29:18,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 09:29:18,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 09:29:18,792 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 09:29:18,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (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 [2018-10-23 09:29:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-23 09:29:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 09:29:18,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 09:29:18,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-23 09:29:18,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-23 09:29:19,328 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 09:29:19,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:29:19 BoogieIcfgContainer [2018-10-23 09:29:19,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 09:29:19,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 09:29:19,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 09:29:19,333 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 09:29:19,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:29:18" (1/3) ... [2018-10-23 09:29:19,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a20f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:29:19, skipping insertion in model container [2018-10-23 09:29:19,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:29:18" (2/3) ... [2018-10-23 09:29:19,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49a20f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:29:19, skipping insertion in model container [2018-10-23 09:29:19,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:29:19" (3/3) ... [2018-10-23 09:29:19,337 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2018-10-23 09:29:19,347 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 09:29:19,355 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 09:29:19,372 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 09:29:19,403 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 09:29:19,404 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 09:29:19,405 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 09:29:19,405 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 09:29:19,405 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 09:29:19,405 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 09:29:19,405 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 09:29:19,405 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 09:29:19,406 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 09:29:19,422 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-10-23 09:29:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-23 09:29:19,429 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:29:19,430 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:29:19,432 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:29:19,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:29:19,440 INFO L82 PathProgramCache]: Analyzing trace with hash -979396716, now seen corresponding path program 1 times [2018-10-23 09:29:19,442 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:29:19,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:29:19,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:29:19,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:29:19,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:29:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:29:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:29:19,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:29:19,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 09:29:19,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-23 09:29:19,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-23 09:29:19,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-23 09:29:19,603 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-10-23 09:29:19,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:29:19,618 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-10-23 09:29:19,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-23 09:29:19,620 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-10-23 09:29:19,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:29:19,631 INFO L225 Difference]: With dead ends: 43 [2018-10-23 09:29:19,632 INFO L226 Difference]: Without dead ends: 19 [2018-10-23 09:29:19,635 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 [2018-10-23 09:29:19,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-23 09:29:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-10-23 09:29:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-23 09:29:19,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-10-23 09:29:19,675 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2018-10-23 09:29:19,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:29:19,675 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-10-23 09:29:19,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-23 09:29:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-10-23 09:29:19,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-23 09:29:19,676 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 09:29:19,677 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 09:29:19,677 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 09:29:19,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 09:29:19,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1580723844, now seen corresponding path program 1 times [2018-10-23 09:29:19,678 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 09:29:19,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 09:29:19,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:29:19,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 09:29:19,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 09:29:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 09:29:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 09:29:19,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 09:29:19,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 09:29:19,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 09:29:19,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 09:29:19,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 09:29:19,757 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 3 states. [2018-10-23 09:29:19,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 09:29:19,761 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-10-23 09:29:19,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 09:29:19,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-23 09:29:19,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 09:29:19,762 INFO L225 Difference]: With dead ends: 19 [2018-10-23 09:29:19,763 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 09:29:19,764 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 09:29:19,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 09:29:19,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 09:29:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 09:29:19,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 09:29:19,765 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-10-23 09:29:19,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 09:29:19,765 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 09:29:19,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 09:29:19,765 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 09:29:19,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 09:29:19,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 09:29:19,805 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 33) no Hoare annotation was computed. [2018-10-23 09:29:19,805 INFO L428 ceAbstractionStarter]: At program point L27-3(lines 27 33) the Hoare annotation is: true [2018-10-23 09:29:19,805 INFO L425 ceAbstractionStarter]: For program point L27-4(lines 27 33) no Hoare annotation was computed. [2018-10-23 09:29:19,805 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-23 09:29:19,805 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L428 ceAbstractionStarter]: At program point L36(lines 10 37) the Hoare annotation is: true [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-23 09:29:19,806 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-23 09:29:19,807 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-23 09:29:19,808 INFO L428 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2018-10-23 09:29:19,808 INFO L425 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-10-23 09:29:19,808 INFO L425 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2018-10-23 09:29:19,808 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-23 09:29:19,808 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-10-23 09:29:19,809 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-10-23 09:29:19,809 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2018-10-23 09:29:19,809 INFO L428 ceAbstractionStarter]: At program point L18-4(lines 18 20) the Hoare annotation is: true [2018-10-23 09:29:19,809 INFO L425 ceAbstractionStarter]: For program point L18-5(lines 18 20) no Hoare annotation was computed. [2018-10-23 09:29:19,809 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-10-23 09:29:19,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:29:19 BoogieIcfgContainer [2018-10-23 09:29:19,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 09:29:19,819 INFO L168 Benchmark]: Toolchain (without parser) took 1420.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -754.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 09:29:19,822 INFO L168 Benchmark]: CDTParser took 0.25 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. [2018-10-23 09:29:19,823 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.50 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. [2018-10-23 09:29:19,824 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.98 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. [2018-10-23 09:29:19,824 INFO L168 Benchmark]: Boogie Preprocessor took 40.82 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. [2018-10-23 09:29:19,825 INFO L168 Benchmark]: RCFGBuilder took 537.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -791.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-23 09:29:19,828 INFO L168 Benchmark]: TraceAbstraction took 488.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-23 09:29:19,835 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 298.50 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 49.98 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 40.82 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 537.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 752.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -791.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 488.17 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 0 SDslu, 17 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 7 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...