./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a_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_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 37ca313e0a5caeb18e76088a0c810f3d29920c7c ............................................................................................................................................................................................................ 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 [2018-10-27 05:17:09,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:17:09,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:17:09,607 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:17:09,609 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:17:09,610 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:17:09,613 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:17:09,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:17:09,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:17:09,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:17:09,622 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:17:09,623 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:17:09,624 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:17:09,626 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:17:09,634 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:17:09,635 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:17:09,636 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:17:09,637 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:17:09,640 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:17:09,644 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:17:09,647 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:17:09,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:17:09,653 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:17:09,655 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:17:09,655 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:17:09,656 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:17:09,657 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:17:09,657 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:17:09,658 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:17:09,659 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:17:09,659 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:17:09,660 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:17:09,660 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:17:09,660 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:17:09,661 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:17:09,662 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:17:09,663 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-10-27 05:17:09,681 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:17:09,681 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:17:09,682 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:17:09,682 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:17:09,683 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:17:09,683 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:17:09,683 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:17:09,684 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:17:09,684 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:17:09,684 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:17:09,684 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:17:09,684 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:17:09,684 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:17:09,685 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:17:09,685 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:17:09,685 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:17:09,685 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 05:17:09,685 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 05:17:09,685 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:17:09,686 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:17:09,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:17:09,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:17:09,688 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:17:09,689 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:17:09,689 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 05:17:09,689 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:17:09,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:17:09,689 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_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak 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 -> Kojak 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 -> 37ca313e0a5caeb18e76088a0c810f3d29920c7c [2018-10-27 05:17:09,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:17:09,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:17:09,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:17:09,749 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:17:09,750 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:17:09,751 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a_false-no-overflow.c [2018-10-27 05:17:09,810 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/data/17c5f8c8b/cef689f767a84f9885bd4b7a227648c6/FLAG142f4b9eb [2018-10-27 05:17:10,198 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:17:10,199 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/sv-benchmarks/c/termination-crafted/NestedRecursion_1a_false-no-overflow.c [2018-10-27 05:17:10,206 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/data/17c5f8c8b/cef689f767a84f9885bd4b7a227648c6/FLAG142f4b9eb [2018-10-27 05:17:10,223 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/data/17c5f8c8b/cef689f767a84f9885bd4b7a227648c6 [2018-10-27 05:17:10,226 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:17:10,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:17:10,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:17:10,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:17:10,233 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:17:10,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12cf0fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10, skipping insertion in model container [2018-10-27 05:17:10,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:17:10,263 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:17:10,409 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:17:10,413 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:17:10,426 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:17:10,439 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:17:10,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10 WrapperNode [2018-10-27 05:17:10,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:17:10,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:17:10,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:17:10,441 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:17:10,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:17:10,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:17:10,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:17:10,472 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:17:10,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... [2018-10-27 05:17:10,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:17:10,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:17:10,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:17:10,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:17:10,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:17:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-10-27 05:17:10,630 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2018-10-27 05:17:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2018-10-27 05:17:10,630 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2018-10-27 05:17:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2018-10-27 05:17:10,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:17:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:17:11,219 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:17:11,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:17:11 BoogieIcfgContainer [2018-10-27 05:17:11,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:17:11,220 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 05:17:11,220 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 05:17:11,232 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 05:17:11,233 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:17:11" (1/1) ... [2018-10-27 05:17:11,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:17:11,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:17:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2018-10-27 05:17:11,294 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2018-10-27 05:17:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:17:11,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:17:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:17:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:17:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:17:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:17:11,476 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2018-10-27 05:17:11,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 05:17:11 ImpRootNode [2018-10-27 05:17:11,507 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 05:17:11,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:17:11,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:17:11,508 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:17:11,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:17:11" (3/4) ... [2018-10-27 05:17:11,511 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 05:17:11,565 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_51847583-648c-458e-a495-8981dbfbc4e6/bin-2019/ukojak/witness.graphml [2018-10-27 05:17:11,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:17:11,566 INFO L168 Benchmark]: Toolchain (without parser) took 1339.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -161.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:11,569 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:11,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.58 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:11,570 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.28 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:17:11,571 INFO L168 Benchmark]: Boogie Preprocessor took 18.47 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:11,571 INFO L168 Benchmark]: RCFGBuilder took 728.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:11,572 INFO L168 Benchmark]: CodeCheck took 287.11 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:17:11,572 INFO L168 Benchmark]: Witness Printer took 58.45 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. [2018-10-27 05:17:11,577 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 45 locations, 10 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L24] int x = __VERIFIER_nondet_int(); [L25] CALL rec2(x) VAL [\old(j)=2147483647] [L18] COND FALSE !(j <= 0) VAL [\old(j)=2147483647, j=2147483647] [L20] j+1 VAL [\old(j)=2147483647, j=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.58 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.28 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.47 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 728.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * CodeCheck took 287.11 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 58.45 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. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...