./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-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_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/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 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 ............................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 10:42:33,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 10:42:33,425 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 10:42:33,432 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 10:42:33,432 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 10:42:33,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 10:42:33,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 10:42:33,435 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 10:42:33,436 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 10:42:33,437 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 10:42:33,437 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 10:42:33,438 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 10:42:33,438 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 10:42:33,439 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 10:42:33,440 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 10:42:33,440 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 10:42:33,441 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 10:42:33,442 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 10:42:33,443 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 10:42:33,444 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 10:42:33,445 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 10:42:33,446 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 10:42:33,448 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 10:42:33,448 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 10:42:33,448 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 10:42:33,449 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 10:42:33,449 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 10:42:33,450 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 10:42:33,450 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 10:42:33,451 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 10:42:33,451 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 10:42:33,452 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 10:42:33,452 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 10:42:33,452 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 10:42:33,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 10:42:33,453 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 10:42:33,453 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 10:42:33,461 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 10:42:33,461 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 10:42:33,462 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 10:42:33,462 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 10:42:33,462 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 10:42:33,462 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 10:42:33,462 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 10:42:33,462 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 10:42:33,463 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 10:42:33,463 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 10:42:33,463 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 10:42:33,463 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 10:42:33,463 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 10:42:33,463 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 10:42:33,463 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 10:42:33,464 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 10:42:33,464 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 10:42:33,464 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 10:42:33,464 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 10:42:33,464 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 10:42:33,464 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 10:42:33,464 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 10:42:33,465 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 10:42:33,465 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 10:42:33,465 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 10:42:33,465 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 10:42:33,465 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 10:42:33,465 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 10:42:33,465 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_9be36d01-a054-42ad-8f32-7e8717879d84/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 -> 588716e5dd1c3d01882e1bf0a06b3529d9c3d880 [2018-11-10 10:42:33,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 10:42:33,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 10:42:33,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 10:42:33,503 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 10:42:33,504 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 10:42:33,504 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c [2018-11-10 10:42:33,552 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/data/e36a4979f/b3da288fcb7e4706918bb4d840de1b2d/FLAG568c984d8 [2018-11-10 10:42:33,881 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 10:42:33,881 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c [2018-11-10 10:42:33,886 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/data/e36a4979f/b3da288fcb7e4706918bb4d840de1b2d/FLAG568c984d8 [2018-11-10 10:42:33,898 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/data/e36a4979f/b3da288fcb7e4706918bb4d840de1b2d [2018-11-10 10:42:33,901 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 10:42:33,902 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 10:42:33,902 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 10:42:33,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 10:42:33,905 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 10:42:33,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:42:33" (1/1) ... [2018-11-10 10:42:33,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d5ab32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:33, skipping insertion in model container [2018-11-10 10:42:33,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:42:33" (1/1) ... [2018-11-10 10:42:33,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 10:42:33,928 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 10:42:34,038 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:42:34,040 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 10:42:34,052 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 10:42:34,062 INFO L193 MainTranslator]: Completed translation [2018-11-10 10:42:34,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34 WrapperNode [2018-11-10 10:42:34,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 10:42:34,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 10:42:34,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 10:42:34,063 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 10:42:34,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... [2018-11-10 10:42:34,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... [2018-11-10 10:42:34,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... [2018-11-10 10:42:34,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... [2018-11-10 10:42:34,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... [2018-11-10 10:42:34,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... [2018-11-10 10:42:34,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... [2018-11-10 10:42:34,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 10:42:34,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 10:42:34,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 10:42:34,084 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 10:42:34,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/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 10:42:34,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 10:42:34,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 10:42:34,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 10:42:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 10:42:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 10:42:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 10:42:34,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 10:42:34,267 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 10:42:34,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:42:34 BoogieIcfgContainer [2018-11-10 10:42:34,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 10:42:34,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 10:42:34,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 10:42:34,271 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 10:42:34,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:42:33" (1/3) ... [2018-11-10 10:42:34,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7156be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:34, skipping insertion in model container [2018-11-10 10:42:34,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:42:34" (2/3) ... [2018-11-10 10:42:34,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7156be0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:34, skipping insertion in model container [2018-11-10 10:42:34,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:42:34" (3/3) ... [2018-11-10 10:42:34,273 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-LICS2004-Fig2-TACAS2011-Fig3_false-no-overflow.c [2018-11-10 10:42:34,280 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 10:42:34,285 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 10:42:34,300 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 10:42:34,319 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 10:42:34,319 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 10:42:34,320 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 10:42:34,320 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 10:42:34,320 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 10:42:34,320 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 10:42:34,320 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 10:42:34,320 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 10:42:34,320 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 10:42:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 10:42:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 10:42:34,337 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:42:34,338 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:42:34,340 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:42:34,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:42:34,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1241711279, now seen corresponding path program 1 times [2018-11-10 10:42:34,347 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:42:34,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:42:34,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:42:34,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:42:34,465 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 10:42:34,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:42:34,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 10:42:34,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 10:42:34,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 10:42:34,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 10:42:34,481 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 4 states. [2018-11-10 10:42:34,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:42:34,554 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-11-10 10:42:34,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 10:42:34,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 10:42:34,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:42:34,561 INFO L225 Difference]: With dead ends: 56 [2018-11-10 10:42:34,562 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 10:42:34,564 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 10:42:34,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 10:42:34,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2018-11-10 10:42:34,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 10:42:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-10 10:42:34,589 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2018-11-10 10:42:34,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:42:34,589 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-10 10:42:34,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 10:42:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-10 10:42:34,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 10:42:34,590 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:42:34,590 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:42:34,590 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:42:34,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:42:34,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1241711471, now seen corresponding path program 1 times [2018-11-10 10:42:34,590 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:42:34,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:42:34,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:42:34,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:42:34,621 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 10:42:34,622 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:42:34,622 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 10:42:34,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 10:42:34,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 10:42:34,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 10:42:34,624 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 4 states. [2018-11-10 10:42:34,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:42:34,665 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2018-11-10 10:42:34,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 10:42:34,666 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-10 10:42:34,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:42:34,667 INFO L225 Difference]: With dead ends: 43 [2018-11-10 10:42:34,667 INFO L226 Difference]: Without dead ends: 42 [2018-11-10 10:42:34,668 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 10:42:34,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-10 10:42:34,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 29. [2018-11-10 10:42:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 10:42:34,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-11-10 10:42:34,673 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2018-11-10 10:42:34,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:42:34,673 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-11-10 10:42:34,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 10:42:34,673 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-11-10 10:42:34,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 10:42:34,673 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:42:34,674 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:42:34,674 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:42:34,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:42:34,674 INFO L82 PathProgramCache]: Analyzing trace with hash -161655964, now seen corresponding path program 1 times [2018-11-10 10:42:34,674 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:42:34,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:42:34,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:42:34,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:42:34,703 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 10:42:34,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:42:34,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:42:34,704 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 10:42:34,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 10:42:34,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:42:34,704 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-11-10 10:42:34,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:42:34,722 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-10 10:42:34,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 10:42:34,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 10:42:34,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:42:34,723 INFO L225 Difference]: With dead ends: 29 [2018-11-10 10:42:34,723 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 10:42:34,723 INFO L605 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 [2018-11-10 10:42:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 10:42:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-10 10:42:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 10:42:34,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-10 10:42:34,727 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 10 [2018-11-10 10:42:34,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:42:34,727 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-10 10:42:34,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 10:42:34,728 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-10 10:42:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 10:42:34,728 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:42:34,728 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:42:34,729 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:42:34,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:42:34,729 INFO L82 PathProgramCache]: Analyzing trace with hash -161650006, now seen corresponding path program 1 times [2018-11-10 10:42:34,729 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:42:34,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:42:34,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:42:34,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 10:42:34,749 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 10:42:34,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 10:42:34,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 10:42:34,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 10:42:34,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 10:42:34,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 10:42:34,750 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 3 states. [2018-11-10 10:42:34,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 10:42:34,771 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2018-11-10 10:42:34,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 10:42:34,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-10 10:42:34,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 10:42:34,772 INFO L225 Difference]: With dead ends: 27 [2018-11-10 10:42:34,773 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 10:42:34,773 INFO L605 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 [2018-11-10 10:42:34,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 10:42:34,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-10 10:42:34,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 10:42:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-10 10:42:34,777 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 10 [2018-11-10 10:42:34,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 10:42:34,777 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-10 10:42:34,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 10:42:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2018-11-10 10:42:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 10:42:34,777 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 10:42:34,777 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 10:42:34,778 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 10:42:34,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 10:42:34,778 INFO L82 PathProgramCache]: Analyzing trace with hash -716182831, now seen corresponding path program 1 times [2018-11-10 10:42:34,778 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 10:42:34,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 10:42:34,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 10:42:34,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 10:42:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:42:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 10:42:34,808 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 10:42:34,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:42:34 BoogieIcfgContainer [2018-11-10 10:42:34,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 10:42:34,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 10:42:34,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 10:42:34,827 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 10:42:34,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 10:42:34" (3/4) ... [2018-11-10 10:42:34,830 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 10:42:34,860 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9be36d01-a054-42ad-8f32-7e8717879d84/bin-2019/uautomizer/witness.graphml [2018-11-10 10:42:34,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 10:42:34,861 INFO L168 Benchmark]: Toolchain (without parser) took 959.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -111.7 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-10 10:42:34,862 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-10 10:42:34,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.47 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 10:42:34,863 INFO L168 Benchmark]: Boogie Preprocessor took 20.28 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. [2018-11-10 10:42:34,863 INFO L168 Benchmark]: RCFGBuilder took 184.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 10:42:34,864 INFO L168 Benchmark]: TraceAbstraction took 557.96 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: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 11.5 GB. [2018-11-10 10:42:34,864 INFO L168 Benchmark]: Witness Printer took 33.94 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. [2018-11-10 10:42:34,866 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 160.47 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.28 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. * RCFGBuilder took 184.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 557.96 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: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 11.5 GB. * Witness Printer took 33.94 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: - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int x, y, oldx, oldy; [L19] x = __VERIFIER_nondet_int() [L20] y = __VERIFIER_nondet_int() [L21] COND TRUE x > 0 && y > 0 [L22] oldx = x [L23] oldy = y [L24] COND FALSE !(__VERIFIER_nondet_int() != 0) [L28] EXPR oldy - 2 [L28] x = oldy - 2 VAL [x=2147483647, x=-1, y=1, y=1] [L29] oldx + 1 VAL [x=-1, x=2147483647, y=1, y=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 6 error locations. UNSAFE Result, 0.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 72 SDtfs, 74 SDslu, 76 SDs, 0 SdLazy, 49 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, 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, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 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 incorrect! Received shutdown request...