./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f9a38be18608b9918f157c72437435dc654871f .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:20:10,325 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:20:10,327 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:20:10,335 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:20:10,335 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:20:10,336 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:20:10,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:20:10,337 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:20:10,338 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:20:10,339 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:20:10,340 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:20:10,340 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:20:10,340 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:20:10,341 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:20:10,342 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:20:10,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:20:10,343 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:20:10,344 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:20:10,345 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:20:10,346 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:20:10,347 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:20:10,347 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:20:10,349 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:20:10,349 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:20:10,349 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:20:10,349 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:20:10,350 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:20:10,351 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:20:10,351 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:20:10,352 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:20:10,352 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:20:10,352 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:20:10,353 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:20:10,353 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:20:10,353 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:20:10,354 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:20:10,354 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-10 07:20:10,364 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:20:10,364 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:20:10,365 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:20:10,365 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 07:20:10,365 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 07:20:10,365 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 07:20:10,366 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:20:10,366 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:20:10,366 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:20:10,366 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:20:10,366 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:20:10,366 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:20:10,366 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:20:10,367 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:20:10,367 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:20:10,367 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:20:10,367 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:20:10,367 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 07:20:10,367 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 07:20:10,367 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:20:10,368 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:20:10,368 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 07:20:10,368 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:20:10,368 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:20:10,368 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:20:10,368 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 07:20:10,368 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:20:10,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:20:10,369 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_9363e76f-fc19-4e32-82c4-96fde0f153bf/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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f9a38be18608b9918f157c72437435dc654871f [2018-11-10 07:20:10,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:20:10,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:20:10,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:20:10,405 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:20:10,405 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:20:10,406 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/../../sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c [2018-11-10 07:20:10,445 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/data/04d3bfba1/334f48e08bc3465f9a985448c506f3cc/FLAG320918a29 [2018-11-10 07:20:10,745 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:20:10,745 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/sv-benchmarks/c/recursive/Addition02_false-unreach-call_true-no-overflow_true-termination.c [2018-11-10 07:20:10,750 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/data/04d3bfba1/334f48e08bc3465f9a985448c506f3cc/FLAG320918a29 [2018-11-10 07:20:10,759 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/data/04d3bfba1/334f48e08bc3465f9a985448c506f3cc [2018-11-10 07:20:10,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:20:10,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:20:10,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:20:10,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:20:10,766 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:20:10,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeb45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10, skipping insertion in model container [2018-11-10 07:20:10,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:20:10,786 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:20:10,876 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:20:10,878 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:20:10,888 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:20:10,896 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:20:10,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10 WrapperNode [2018-11-10 07:20:10,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:20:10,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:20:10,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:20:10,897 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:20:10,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:20:10,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:20:10,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:20:10,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:20:10,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... [2018-11-10 07:20:10,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:20:10,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:20:10,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:20:10,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:20:10,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:20:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/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 [2018-11-10 07:20:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:20:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:20:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2018-11-10 07:20:10,991 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2018-11-10 07:20:11,100 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:20:11,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:20:11 BoogieIcfgContainer [2018-11-10 07:20:11,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:20:11,100 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 07:20:11,101 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 07:20:11,108 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 07:20:11,108 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:20:11" (1/1) ... [2018-11-10 07:20:11,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:20:11,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:20:11,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2018-11-10 07:20:11,138 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2018-11-10 07:20:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 07:20:11,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:20:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:11,324 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 07:20:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:20:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 35 transitions. [2018-11-10 07:20:11,495 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-11-10 07:20:11,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 07:20:11,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:20:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:20:11,538 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 07:20:11,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 07:20:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 33 transitions. [2018-11-10 07:20:11,621 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2018-11-10 07:20:11,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 07:20:11,622 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 07:20:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:20:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:20:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:20:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:20:11,676 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2018-11-10 07:20:11,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 07:20:11 ImpRootNode [2018-11-10 07:20:11,702 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 07:20:11,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:20:11,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:20:11,703 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:20:11,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:20:11" (3/4) ... [2018-11-10 07:20:11,705 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:20:11,743 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9363e76f-fc19-4e32-82c4-96fde0f153bf/bin-2019/ukojak/witness.graphml [2018-11-10 07:20:11,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:20:11,744 INFO L168 Benchmark]: Toolchain (without parser) took 981.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -136.5 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:11,745 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:20:11,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:11,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:20:11,746 INFO L168 Benchmark]: Boogie Preprocessor took 9.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:11,747 INFO L168 Benchmark]: RCFGBuilder took 176.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:11,747 INFO L168 Benchmark]: CodeCheck took 601.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:20:11,747 INFO L168 Benchmark]: Witness Printer took 40.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:20:11,750 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 2 procedures, 22 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 84 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 828 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 43]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L27] int m = __VERIFIER_nondet_int(); [L28] COND FALSE !(m < 0 || m > 1073741823) [L33] int n = __VERIFIER_nondet_int(); [L34] COND FALSE !(n < 0 || n > 1073741823) [L39] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L14] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L17] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L18] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L14] COND TRUE n == 0 [L15] RET return m; VAL [\old(m)=1, \old(n)=0, \result=1, m=1, n=0] [L18] EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, addition(m+1, n-1)=1, m=0, n=1] [L18] RET return addition(m+1, n-1); [L39] EXPR addition(m,n) [L39] int result = addition(m,n); [L40] COND FALSE !(result == m - n) [L43] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.28 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 176.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -217.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * CodeCheck took 601.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * Witness Printer took 40.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...