./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/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 0d4863d19d9edc8c921323118a78f9e7d3499a81 ........................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:02:22,260 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:02:22,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:02:22,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:02:22,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:02:22,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:02:22,270 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:02:22,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:02:22,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:02:22,272 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:02:22,273 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:02:22,273 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:02:22,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:02:22,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:02:22,275 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:02:22,276 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:02:22,276 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:02:22,277 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:02:22,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:02:22,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:02:22,280 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:02:22,281 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:02:22,283 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:02:22,283 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:02:22,283 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:02:22,284 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:02:22,284 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:02:22,285 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:02:22,285 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:02:22,286 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:02:22,286 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:02:22,287 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:02:22,287 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:02:22,287 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:02:22,288 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:02:22,288 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:02:22,288 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 04:02:22,298 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:02:22,298 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:02:22,299 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:02:22,299 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:02:22,299 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:02:22,299 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:02:22,299 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:02:22,300 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:02:22,300 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:02:22,300 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:02:22,300 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:02:22,300 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:02:22,300 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:02:22,300 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:02:22,301 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 04:02:22,301 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:02:22,301 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:02:22,301 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:02:22,301 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:02:22,301 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:02:22,301 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:02:22,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:02:22,302 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:02:22,302 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:02:22,302 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:02:22,302 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:02:22,302 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:02:22,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:02:22,302 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_5cf7b268-5075-4117-aaf1-0c485f954848/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 -> 0d4863d19d9edc8c921323118a78f9e7d3499a81 [2018-11-10 04:02:22,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:02:22,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:02:22,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:02:22,337 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:02:22,338 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:02:22,338 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6_true-termination_true-no-overflow.c [2018-11-10 04:02:22,373 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/data/c5f724136/9b44ae78619142b9b6cf8eeea836fb11/FLAG1c88c1404 [2018-11-10 04:02:22,672 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:02:22,672 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig6_true-termination_true-no-overflow.c [2018-11-10 04:02:22,676 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/data/c5f724136/9b44ae78619142b9b6cf8eeea836fb11/FLAG1c88c1404 [2018-11-10 04:02:22,684 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/data/c5f724136/9b44ae78619142b9b6cf8eeea836fb11 [2018-11-10 04:02:22,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:02:22,687 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 04:02:22,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:02:22,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:02:22,690 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:02:22,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20772a2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22, skipping insertion in model container [2018-11-10 04:02:22,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:02:22,710 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:02:22,810 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:02:22,812 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:02:22,821 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:02:22,830 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:02:22,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22 WrapperNode [2018-11-10 04:02:22,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:02:22,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:02:22,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:02:22,831 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:02:22,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... [2018-11-10 04:02:22,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:02:22,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:02:22,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:02:22,848 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:02:22,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/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 [2018-11-10 04:02:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:02:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:02:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:02:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 04:02:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:02:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:02:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:02:23,023 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:02:23,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:02:23 BoogieIcfgContainer [2018-11-10 04:02:23,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:02:23,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:02:23,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:02:23,026 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:02:23,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:02:22" (1/3) ... [2018-11-10 04:02:23,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5e02a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:02:23, skipping insertion in model container [2018-11-10 04:02:23,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:02:22" (2/3) ... [2018-11-10 04:02:23,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5e02a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:02:23, skipping insertion in model container [2018-11-10 04:02:23,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:02:23" (3/3) ... [2018-11-10 04:02:23,029 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig6_true-termination_true-no-overflow.c [2018-11-10 04:02:23,035 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:02:23,040 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 04:02:23,049 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 04:02:23,066 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:02:23,067 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:02:23,067 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:02:23,067 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:02:23,067 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:02:23,067 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:02:23,067 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:02:23,067 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:02:23,067 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:02:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-10 04:02:23,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 04:02:23,081 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:02:23,082 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:02:23,084 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:02:23,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:02:23,087 INFO L82 PathProgramCache]: Analyzing trace with hash 2105155535, now seen corresponding path program 1 times [2018-11-10 04:02:23,088 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:02:23,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:02:23,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:02:23,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:02:23,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:02:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:02:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:02:23,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:02:23,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 04:02:23,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:02:23,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:02:23,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:02:23,207 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2018-11-10 04:02:23,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:02:23,251 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-11-10 04:02:23,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 04:02:23,253 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-10 04:02:23,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:02:23,260 INFO L225 Difference]: With dead ends: 21 [2018-11-10 04:02:23,260 INFO L226 Difference]: Without dead ends: 10 [2018-11-10 04:02:23,262 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:02:23,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-11-10 04:02:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-11-10 04:02:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-10 04:02:23,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-11-10 04:02:23,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2018-11-10 04:02:23,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:02:23,290 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-11-10 04:02:23,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:02:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-11-10 04:02:23,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 04:02:23,290 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:02:23,290 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:02:23,290 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:02:23,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:02:23,291 INFO L82 PathProgramCache]: Analyzing trace with hash 835312193, now seen corresponding path program 1 times [2018-11-10 04:02:23,291 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:02:23,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:02:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:02:23,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:02:23,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:02:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:02:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:02:23,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:02:23,319 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 04:02:23,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:02:23,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:02:23,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:02:23,321 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2018-11-10 04:02:23,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:02:23,338 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-11-10 04:02:23,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 04:02:23,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 04:02:23,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:02:23,338 INFO L225 Difference]: With dead ends: 10 [2018-11-10 04:02:23,339 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:02:23,339 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:02:23,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:02:23,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:02:23,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:02:23,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:02:23,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-10 04:02:23,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:02:23,340 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:02:23,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:02:23,340 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:02:23,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:02:23,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:02:23,362 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 04:02:23,362 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:02:23,362 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:02:23,363 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:02:23,363 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:02:23,363 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:02:23,363 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 22) the Hoare annotation is: true [2018-11-10 04:02:23,363 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 22) no Hoare annotation was computed. [2018-11-10 04:02:23,363 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 04:02:23,363 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 04:02:23,363 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 20) no Hoare annotation was computed. [2018-11-10 04:02:23,363 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 04:02:23,363 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 04:02:23,364 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 20) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= main_~y~0 2147483647)) [2018-11-10 04:02:23,364 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 20) no Hoare annotation was computed. [2018-11-10 04:02:23,364 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 22) no Hoare annotation was computed. [2018-11-10 04:02:23,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:02:23 BoogieIcfgContainer [2018-11-10 04:02:23,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:02:23,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:02:23,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:02:23,372 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:02:23,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:02:23" (3/4) ... [2018-11-10 04:02:23,375 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:02:23,380 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:02:23,380 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:02:23,382 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 04:02:23,383 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:02:23,383 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 04:02:23,412 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5cf7b268-5075-4117-aaf1-0c485f954848/bin-2019/uautomizer/witness.graphml [2018-11-10 04:02:23,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:02:23,413 INFO L168 Benchmark]: Toolchain (without parser) took 726.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -141.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:02:23,414 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:02:23,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:02:23,415 INFO L168 Benchmark]: Boogie Preprocessor took 17.31 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:02:23,415 INFO L168 Benchmark]: RCFGBuilder took 175.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -199.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:02:23,415 INFO L168 Benchmark]: TraceAbstraction took 348.08 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:02:23,416 INFO L168 Benchmark]: Witness Printer took 39.97 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:02:23,418 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.61 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.3 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.31 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 175.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -199.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 348.08 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: 39.3 MB). Peak memory consumption was 39.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.97 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 10 SDslu, 24 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 5 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...