./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8a6493762f89d18a23d3a0b9dc19677bd5f4752 ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 10:33:58,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:33:58,646 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:33:58,654 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:33:58,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:33:58,655 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:33:58,656 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:33:58,657 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:33:58,658 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:33:58,659 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:33:58,660 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:33:58,660 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:33:58,661 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:33:58,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:33:58,662 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:33:58,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:33:58,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:33:58,664 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:33:58,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:33:58,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:33:58,668 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:33:58,669 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:33:58,670 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:33:58,670 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:33:58,670 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:33:58,671 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:33:58,672 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:33:58,672 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:33:58,673 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:33:58,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:33:58,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:33:58,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:33:58,675 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:33:58,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:33:58,676 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:33:58,677 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:33:58,677 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 10:33:58,687 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:33:58,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:33:58,688 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 10:33:58,688 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 10:33:58,689 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:33:58,689 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:33:58,689 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:33:58,689 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:33:58,689 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:33:58,689 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:33:58,690 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:33:58,690 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:33:58,690 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 10:33:58,690 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 10:33:58,690 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 10:33:58,690 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:33:58,690 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:33:58,691 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:33:58,691 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 10:33:58,693 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:33:58,693 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:33:58,693 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 10:33:58,693 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 10:33:58,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 10:33:58,693 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:33:58,693 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 10:33:58,694 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 10:33:58,694 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:33:58,694 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 10:33:58,694 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 10:33:58,694 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8a6493762f89d18a23d3a0b9dc19677bd5f4752 [2018-11-28 10:33:58,721 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:33:58,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:33:58,733 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:33:58,734 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:33:58,734 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:33:58,735 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-28 10:33:58,778 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/data/dee01e553/fc3c423c0bdd4f14ad90c53a166161c7/FLAG32c5fa0f1 [2018-11-28 10:33:59,105 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:33:59,106 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/sv-benchmarks/c/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-28 10:33:59,109 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/data/dee01e553/fc3c423c0bdd4f14ad90c53a166161c7/FLAG32c5fa0f1 [2018-11-28 10:33:59,539 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/data/dee01e553/fc3c423c0bdd4f14ad90c53a166161c7 [2018-11-28 10:33:59,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:33:59,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:33:59,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:59,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:33:59,544 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:33:59,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61e86348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59, skipping insertion in model container [2018-11-28 10:33:59,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:33:59,562 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:33:59,671 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:59,674 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:33:59,687 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:33:59,695 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:33:59,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59 WrapperNode [2018-11-28 10:33:59,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:33:59,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:59,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:33:59,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:33:59,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,711 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:33:59,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:33:59,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:33:59,711 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:33:59,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... [2018-11-28 10:33:59,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:33:59,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:33:59,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:33:59,724 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:33:59,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/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 [2018-11-28 10:33:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 10:33:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 10:33:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:33:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:33:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 10:33:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 10:33:59,929 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:33:59,929 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 10:33:59,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:59 BoogieIcfgContainer [2018-11-28 10:33:59,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:33:59,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 10:33:59,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 10:33:59,933 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 10:33:59,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 10:33:59" (1/3) ... [2018-11-28 10:33:59,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6aebc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:59, skipping insertion in model container [2018-11-28 10:33:59,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:33:59" (2/3) ... [2018-11-28 10:33:59,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6aebc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 10:33:59, skipping insertion in model container [2018-11-28 10:33:59,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:59" (3/3) ... [2018-11-28 10:33:59,936 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-28 10:33:59,944 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 10:33:59,949 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 10:33:59,960 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 10:33:59,980 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:33:59,981 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 10:33:59,981 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 10:33:59,981 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 10:33:59,981 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:33:59,981 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:33:59,981 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 10:33:59,981 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:33:59,982 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 10:33:59,994 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-28 10:33:59,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 10:33:59,998 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:33:59,999 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:34:00,000 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:34:00,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:00,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1883805102, now seen corresponding path program 1 times [2018-11-28 10:34:00,006 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:00,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:00,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:00,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:00,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:00,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:34:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:34:00,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:34:00,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 10:34:00,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 10:34:00,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 10:34:00,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 10:34:00,178 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-28 10:34:00,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:34:00,259 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-28 10:34:00,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 10:34:00,261 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-28 10:34:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:34:00,267 INFO L225 Difference]: With dead ends: 33 [2018-11-28 10:34:00,267 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 10:34:00,270 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 10:34:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 10:34:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-28 10:34:00,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-28 10:34:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-28 10:34:00,292 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-28 10:34:00,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:34:00,292 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-28 10:34:00,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 10:34:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-28 10:34:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 10:34:00,293 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 10:34:00,293 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:34:00,293 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 10:34:00,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:00,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2141584271, now seen corresponding path program 1 times [2018-11-28 10:34:00,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:00,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:00,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:00,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:00,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:34:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:34:00,340 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 10:34:00,340 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/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 [2018-11-28 10:34:00,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:34:00,378 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 10:34:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 10:34:00,450 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 10:34:00,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-11-28 10:34:00,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 10:34:00,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 10:34:00,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-28 10:34:00,451 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2018-11-28 10:34:00,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:34:00,551 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-28 10:34:00,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 10:34:00,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-11-28 10:34:00,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 10:34:00,552 INFO L225 Difference]: With dead ends: 19 [2018-11-28 10:34:00,552 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 10:34:00,553 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-28 10:34:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 10:34:00,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 10:34:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 10:34:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 10:34:00,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-28 10:34:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 10:34:00,554 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 10:34:00,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 10:34:00,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 10:34:00,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 10:34:00,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 10:34:00,596 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 10:34:00,596 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 10:34:00,596 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 10:34:00,596 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 10:34:00,596 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 10:34:00,596 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 10:34:00,596 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 10:34:00,597 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2018-11-28 10:34:00,597 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 9 69) the Hoare annotation is: true [2018-11-28 10:34:00,597 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 66) no Hoare annotation was computed. [2018-11-28 10:34:00,597 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 9 69) no Hoare annotation was computed. [2018-11-28 10:34:00,597 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 67) no Hoare annotation was computed. [2018-11-28 10:34:00,597 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-28 10:34:00,597 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 59) no Hoare annotation was computed. [2018-11-28 10:34:00,597 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 68) no Hoare annotation was computed. [2018-11-28 10:34:00,598 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 9 69) no Hoare annotation was computed. [2018-11-28 10:34:00,598 INFO L444 ceAbstractionStarter]: At program point L41(lines 28 62) the Hoare annotation is: (or (<= (+ main_~main__x~0 51) main_~main__y~0) (and (<= (+ main_~main__x~0 2) main_~main__y~0) (exists ((v_main_~main__y~0_14 Int)) (and (<= (+ v_main_~main__y~0_14 1) main_~main__y~0) (<= (+ main_~main__x~0 2) (* 2 v_main_~main__y~0_14)))))) [2018-11-28 10:34:00,598 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 61) no Hoare annotation was computed. [2018-11-28 10:34:00,603 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] [2018-11-28 10:34:00,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] [2018-11-28 10:34:00,610 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] [2018-11-28 10:34:00,610 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] [2018-11-28 10:34:00,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 10:34:00 BoogieIcfgContainer [2018-11-28 10:34:00,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 10:34:00,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:34:00,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:34:00,613 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:34:00,613 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:33:59" (3/4) ... [2018-11-28 10:34:00,617 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 10:34:00,621 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 10:34:00,622 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 10:34:00,624 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-28 10:34:00,625 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 10:34:00,648 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: main__x + 51 <= main__y || (main__x + 2 <= main__y && (\exists v_main_~main__y~0_14 : int :: v_main_~main__y~0_14 + 1 <= main__y && main__x + 2 <= 2 * v_main_~main__y~0_14)) [2018-11-28 10:34:00,661 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4d066b4c-63fa-45c4-a381-088a78fc178b/bin-2019/uautomizer/witness.graphml [2018-11-28 10:34:00,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:34:00,662 INFO L168 Benchmark]: Toolchain (without parser) took 1120.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -100.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:00,663 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:34:00,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.99 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:00,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:34:00,664 INFO L168 Benchmark]: Boogie Preprocessor took 12.61 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:00,664 INFO L168 Benchmark]: RCFGBuilder took 205.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:00,664 INFO L168 Benchmark]: TraceAbstraction took 681.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:00,664 INFO L168 Benchmark]: Witness Printer took 48.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:00,668 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.99 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.61 ms. Allocated memory is still 1.0 GB. Free memory was 942.6 MB in the beginning and 939.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 205.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 681.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. * Witness Printer took 48.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 52]: 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: 28]: Loop Invariant [2018-11-28 10:34:00,671 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] [2018-11-28 10:34:00,672 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] [2018-11-28 10:34:00,672 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] [2018-11-28 10:34:00,672 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_14,QUANTIFIED] Derived loop invariant: main__x + 51 <= main__y || (main__x + 2 <= main__y && (\exists v_main_~main__y~0_14 : int :: v_main_~main__y~0_14 + 1 <= main__y && main__x + 2 <= 2 * v_main_~main__y~0_14)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 14 SDslu, 75 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 30 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 2 QuantifiedInterpolants, 1780 SizeOfPredicates, 4 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 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...