./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 01:08:31,744 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:08:31,745 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:08:31,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:08:31,752 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:08:31,753 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:08:31,754 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:08:31,755 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:08:31,757 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:08:31,757 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:08:31,758 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:08:31,758 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:08:31,759 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:08:31,760 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:08:31,761 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:08:31,761 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:08:31,762 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:08:31,764 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:08:31,765 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:08:31,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:08:31,767 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:08:31,768 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:08:31,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:08:31,770 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:08:31,771 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:08:31,771 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:08:31,772 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:08:31,773 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:08:31,773 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:08:31,775 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:08:31,775 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:08:31,775 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:08:31,775 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:08:31,776 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:08:31,776 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:08:31,777 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:08:31,777 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-23 01:08:31,786 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:08:31,786 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:08:31,786 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 01:08:31,787 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 01:08:31,787 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:08:31,787 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:08:31,787 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 01:08:31,787 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:08:31,787 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:08:31,788 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 01:08:31,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 01:08:31,789 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 01:08:31,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 01:08:31,790 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_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/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 ! overflow) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 [2018-11-23 01:08:31,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:08:31,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:08:31,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:08:31,826 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:08:31,826 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:08:31,827 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 01:08:31,863 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/data/d8af8ce91/35488ac8bba44b41ae2eb7b8eaec72f6/FLAGd6c2f2db9 [2018-11-23 01:08:32,250 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:08:32,250 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 01:08:32,254 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/data/d8af8ce91/35488ac8bba44b41ae2eb7b8eaec72f6/FLAGd6c2f2db9 [2018-11-23 01:08:32,265 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/data/d8af8ce91/35488ac8bba44b41ae2eb7b8eaec72f6 [2018-11-23 01:08:32,268 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:08:32,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:08:32,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:08:32,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:08:32,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:08:32,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32, skipping insertion in model container [2018-11-23 01:08:32,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:08:32,290 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:08:32,394 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:08:32,396 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:08:32,405 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:08:32,413 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:08:32,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32 WrapperNode [2018-11-23 01:08:32,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:08:32,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:08:32,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:08:32,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:08:32,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:08:32,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:08:32,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:08:32,427 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:08:32,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... [2018-11-23 01:08:32,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:08:32,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:08:32,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:08:32,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:08:32,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/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 [2018-11-23 01:08:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 01:08:32,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 01:08:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:08:32,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:08:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 01:08:32,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 01:08:32,632 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:08:32,632 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 01:08:32,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:32 BoogieIcfgContainer [2018-11-23 01:08:32,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:08:32,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 01:08:32,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 01:08:32,636 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 01:08:32,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:08:32" (1/3) ... [2018-11-23 01:08:32,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfaca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:32, skipping insertion in model container [2018-11-23 01:08:32,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:08:32" (2/3) ... [2018-11-23 01:08:32,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfaca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:08:32, skipping insertion in model container [2018-11-23 01:08:32,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:32" (3/3) ... [2018-11-23 01:08:32,639 INFO L112 eAbstractionObserver]: Analyzing ICFG Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-23 01:08:32,646 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 01:08:32,653 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 01:08:32,667 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 01:08:32,693 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 01:08:32,694 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 01:08:32,694 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 01:08:32,694 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 01:08:32,694 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:08:32,694 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:08:32,694 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 01:08:32,694 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:08:32,694 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 01:08:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 01:08:32,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 01:08:32,714 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:08:32,715 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:08:32,716 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:08:32,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:08:32,721 INFO L82 PathProgramCache]: Analyzing trace with hash 998107396, now seen corresponding path program 1 times [2018-11-23 01:08:32,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:08:32,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:08:32,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:32,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:08:32,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:08:32,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:08:32,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:08:32,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 01:08:32,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 01:08:32,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:08:32,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:32,854 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-23 01:08:32,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:08:32,879 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-11-23 01:08:32,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:08:32,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 01:08:32,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:08:32,888 INFO L225 Difference]: With dead ends: 25 [2018-11-23 01:08:32,889 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 01:08:32,891 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:32,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 01:08:32,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-23 01:08:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 01:08:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-23 01:08:32,916 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 7 [2018-11-23 01:08:32,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:08:32,916 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-23 01:08:32,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 01:08:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-23 01:08:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 01:08:32,917 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:08:32,917 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:08:32,917 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:08:32,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:08:32,917 INFO L82 PathProgramCache]: Analyzing trace with hash 876558251, now seen corresponding path program 1 times [2018-11-23 01:08:32,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:08:32,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:08:32,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:32,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:08:32,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:08:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:08:32,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:08:32,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 01:08:32,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 01:08:32,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:08:32,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:32,951 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2018-11-23 01:08:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:08:32,973 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-23 01:08:32,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:08:32,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 01:08:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:08:32,974 INFO L225 Difference]: With dead ends: 15 [2018-11-23 01:08:32,974 INFO L226 Difference]: Without dead ends: 14 [2018-11-23 01:08:32,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-23 01:08:32,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-23 01:08:32,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 01:08:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-11-23 01:08:32,978 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2018-11-23 01:08:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:08:32,978 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-23 01:08:32,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 01:08:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-23 01:08:32,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 01:08:32,979 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:08:32,979 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:08:32,979 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:08:32,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:08:32,979 INFO L82 PathProgramCache]: Analyzing trace with hash 558890797, now seen corresponding path program 1 times [2018-11-23 01:08:32,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:08:32,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:08:32,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:32,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:08:32,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:08:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:08:33,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:08:33,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 01:08:33,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 01:08:33,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:08:33,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:33,011 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2018-11-23 01:08:33,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:08:33,022 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-11-23 01:08:33,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:08:33,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 01:08:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:08:33,023 INFO L225 Difference]: With dead ends: 13 [2018-11-23 01:08:33,023 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 01:08:33,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:33,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 01:08:33,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 01:08:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 01:08:33,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-11-23 01:08:33,026 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2018-11-23 01:08:33,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:08:33,026 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-23 01:08:33,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 01:08:33,026 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 01:08:33,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 01:08:33,027 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:08:33,027 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:08:33,027 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 01:08:33,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:08:33,027 INFO L82 PathProgramCache]: Analyzing trace with hash 145745577, now seen corresponding path program 1 times [2018-11-23 01:08:33,027 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:08:33,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:08:33,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:33,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:08:33,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:08:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:08:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 01:08:33,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:08:33,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 01:08:33,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 01:08:33,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 01:08:33,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:33,044 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2018-11-23 01:08:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:08:33,053 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-11-23 01:08:33,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 01:08:33,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-23 01:08:33,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:08:33,054 INFO L225 Difference]: With dead ends: 13 [2018-11-23 01:08:33,054 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 01:08:33,054 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 01:08:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 01:08:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 01:08:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 01:08:33,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 01:08:33,055 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-23 01:08:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:08:33,055 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:08:33,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 01:08:33,055 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 01:08:33,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 01:08:33,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 01:08:33,080 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 01:08:33,080 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:08:33,080 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:08:33,080 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 01:08:33,080 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 01:08:33,080 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 01:08:33,081 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 01:08:33,081 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 01:08:33,081 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 27) no Hoare annotation was computed. [2018-11-23 01:08:33,081 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 24) no Hoare annotation was computed. [2018-11-23 01:08:33,081 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 19 25) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647)) [2018-11-23 01:08:33,081 INFO L448 ceAbstractionStarter]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2018-11-23 01:08:33,081 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 27) no Hoare annotation was computed. [2018-11-23 01:08:33,082 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-23 01:08:33,082 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 15 27) the Hoare annotation is: true [2018-11-23 01:08:33,082 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-23 01:08:33,082 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-23 01:08:33,082 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-23 01:08:33,082 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 01:08:33,082 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 01:08:33,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:08:33 BoogieIcfgContainer [2018-11-23 01:08:33,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 01:08:33,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:08:33,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:08:33,091 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:08:33,091 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:08:32" (3/4) ... [2018-11-23 01:08:33,093 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 01:08:33,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 01:08:33,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 01:08:33,100 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 01:08:33,100 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 01:08:33,100 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 01:08:33,128 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_98f505c1-ea9c-4bb1-a9cb-e44dbe680101/bin-2019/uautomizer/witness.graphml [2018-11-23 01:08:33,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:08:33,129 INFO L168 Benchmark]: Toolchain (without parser) took 860.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -117.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-23 01:08:33,130 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:08:33,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.98 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-23 01:08:33,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.01 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:08:33,130 INFO L168 Benchmark]: Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:08:33,131 INFO L168 Benchmark]: RCFGBuilder took 191.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-23 01:08:33,131 INFO L168 Benchmark]: TraceAbstraction took 456.80 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-23 01:08:33,133 INFO L168 Benchmark]: Witness Printer took 37.81 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:08:33,135 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.98 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.01 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 456.80 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.81 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 14 SDslu, 21 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...