./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq_false-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq_false-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/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 a5108b5377d097a7402b9724bf53ce3710eed7c6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-aa41828 [2018-11-23 06:43:20,852 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:43:20,853 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:43:20,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:43:20,862 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:43:20,862 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:43:20,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:43:20,864 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:43:20,865 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:43:20,866 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:43:20,866 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:43:20,867 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:43:20,867 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:43:20,868 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:43:20,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:43:20,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:43:20,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:43:20,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:43:20,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:43:20,873 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:43:20,873 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:43:20,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:43:20,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:43:20,876 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:43:20,876 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:43:20,877 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:43:20,877 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:43:20,878 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:43:20,878 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:43:20,879 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:43:20,879 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:43:20,880 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:43:20,880 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:43:20,880 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:43:20,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:43:20,881 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:43:20,881 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-23 06:43:20,891 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:43:20,891 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:43:20,891 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:43:20,891 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 06:43:20,892 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 06:43:20,892 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 06:43:20,892 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:43:20,892 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:43:20,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:43:20,893 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:43:20,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:43:20,894 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 06:43:20,894 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 06:43:20,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:43:20,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:43:20,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 06:43:20,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:43:20,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:43:20,895 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:43:20,895 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 06:43:20,895 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:43:20,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:43:20,895 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_541e3a13-8e09-4ed0-a6e6-f344733eeb09/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 -> a5108b5377d097a7402b9724bf53ce3710eed7c6 [2018-11-23 06:43:20,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:43:20,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:43:20,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:43:20,930 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:43:20,930 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:43:20,931 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/../../sv-benchmarks/c/recursive-simple/sum_non_eq_false-unreach-call_true-termination_true-no-overflow.c [2018-11-23 06:43:20,974 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/data/af3ea5d85/47b85eab675f4528a052134d2a4e40fc/FLAG37d87f974 [2018-11-23 06:43:21,292 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:43:21,292 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/sv-benchmarks/c/recursive-simple/sum_non_eq_false-unreach-call_true-termination_true-no-overflow.c [2018-11-23 06:43:21,296 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/data/af3ea5d85/47b85eab675f4528a052134d2a4e40fc/FLAG37d87f974 [2018-11-23 06:43:21,732 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/data/af3ea5d85/47b85eab675f4528a052134d2a4e40fc [2018-11-23 06:43:21,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:43:21,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:43:21,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:43:21,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:43:21,738 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:43:21,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66318819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21, skipping insertion in model container [2018-11-23 06:43:21,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:43:21,756 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:43:21,859 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:43:21,861 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:43:21,869 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:43:21,877 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:43:21,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21 WrapperNode [2018-11-23 06:43:21,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:43:21,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:43:21,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:43:21,878 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:43:21,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:43:21,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:43:21,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:43:21,899 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:43:21,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... [2018-11-23 06:43:21,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:43:21,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:43:21,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:43:21,911 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:43:21,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:43:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/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 [2018-11-23 06:43:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:43:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:43:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-11-23 06:43:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-11-23 06:43:22,082 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:43:22,082 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 06:43:22,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:22 BoogieIcfgContainer [2018-11-23 06:43:22,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:43:22,083 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 06:43:22,083 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 06:43:22,092 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 06:43:22,093 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:22" (1/1) ... [2018-11-23 06:43:22,103 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:43:22,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 06:43:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-23 06:43:22,137 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-23 06:43:22,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 06:43:22,142 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 06:43:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:43:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:43:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:43:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 06:43:22,256 WARN L493 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2; [?] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [|sum_#in~m|=0, |sum_#in~n|=0] [?] ~n := #in~n;~m := #in~m; VAL [sum_~m=0, sum_~n=0, |sum_#in~m|=0, |sum_#in~n|=0] [?] assume 0 == ~n % 4294967296;#res := ~m; VAL [sum_~m=0, sum_~n=0, |sum_#in~m|=0, |sum_#in~n|=0, |sum_#res|=0] [?] assume true; VAL [sum_~m=0, sum_~n=0, |sum_#in~m|=0, |sum_#in~n|=0, |sum_#res|=0] [?] RET #24#return; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, |ULTIMATE.start_main_#t~ret3|=0] [?] main_~result~0 := main_#t~ret3;havoc main_#t~ret3; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~result~0=0] [?] assume main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~result~0=0] [?] assume !false; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~result~0=0] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5-L9] assume 0 == ~n % 4294967296; [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L4-L10] ensures true; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16-L18] assume main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5-L9] assume 0 == ~n % 4294967296; [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L4-L10] ensures true; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16-L18] assume main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16] COND TRUE main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296 VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16] COND TRUE main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296 VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L13] ~a~0 := #t~nondet1; [L13] havoc #t~nondet1; [L14] ~b~0 := #t~nondet2; [L14] havoc #t~nondet2; [L15] CALL call #t~ret3 := sum(~a~0, ~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call #t~ret3 := sum(~a~0, ~b~0); [L15] ~result~0 := #t~ret3; [L15] havoc #t~ret3; [L16] COND TRUE ~result~0 % 4294967296 == (~a~0 + ~b~0) % 4294967296 [L17] assert false; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L13] ~a~0 := #t~nondet1; [L13] havoc #t~nondet1; [L14] ~b~0 := #t~nondet2; [L14] havoc #t~nondet2; [L15] CALL call #t~ret3 := sum(~a~0, ~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call #t~ret3 := sum(~a~0, ~b~0); [L15] ~result~0 := #t~ret3; [L15] havoc #t~ret3; [L16] COND TRUE ~result~0 % 4294967296 == (~a~0 + ~b~0) % 4294967296 [L17] assert false; [L13] unsigned int a = __VERIFIER_nondet_uint(); [L14] unsigned int b = __VERIFIER_nondet_uint(); [L15] CALL, EXPR sum(a, b) VAL [\old(m)=0, \old(n)=0] [L5] COND TRUE n == 0 [L6] return m; VAL [\old(m)=0, \old(n)=0, \result=0, m=0, n=0] [L15] RET, EXPR sum(a, b) [L15] unsigned int result = sum(a, b); [L16] COND TRUE result == a + b [L17] __VERIFIER_error() ----- [2018-11-23 06:43:22,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 06:43:22 ImpRootNode [2018-11-23 06:43:22,284 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 06:43:22,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:43:22,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:43:22,284 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:43:22,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:43:22" (3/4) ... [2018-11-23 06:43:22,287 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2; [?] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [|sum_#in~m|=0, |sum_#in~n|=0] [?] ~n := #in~n;~m := #in~m; VAL [sum_~m=0, sum_~n=0, |sum_#in~m|=0, |sum_#in~n|=0] [?] assume 0 == ~n % 4294967296;#res := ~m; VAL [sum_~m=0, sum_~n=0, |sum_#in~m|=0, |sum_#in~n|=0, |sum_#res|=0] [?] assume true; VAL [sum_~m=0, sum_~n=0, |sum_#in~m|=0, |sum_#in~n|=0, |sum_#res|=0] [?] RET #24#return; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, |ULTIMATE.start_main_#t~ret3|=0] [?] main_~result~0 := main_#t~ret3;havoc main_#t~ret3; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~result~0=0] [?] assume main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~result~0=0] [?] assume !false; VAL [ULTIMATE.start_main_~a~0=0, ULTIMATE.start_main_~b~0=0, ULTIMATE.start_main_~result~0=0] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5-L9] assume 0 == ~n % 4294967296; [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L4-L10] ensures true; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16-L18] assume main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5-L9] assume 0 == ~n % 4294967296; [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L4-L10] ensures true; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16-L18] assume main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16] COND TRUE main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296 VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] havoc main_#res; [?] havoc main_#t~nondet1, main_#t~nondet2, main_#t~ret3, main_~a~0, main_~b~0, main_~result~0; [L13] main_~a~0 := main_#t~nondet1; [L13] havoc main_#t~nondet1; [L14] main_~b~0 := main_#t~nondet2; [L14] havoc main_#t~nondet2; [L15] CALL call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call main_#t~ret3 := sum(main_~a~0, main_~b~0); VAL [main_#t~ret3=0, main_~a~0=0, main_~b~0=0] [L15] main_~result~0 := main_#t~ret3; [L15] havoc main_#t~ret3; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L16] COND TRUE main_~result~0 % 4294967296 == (main_~a~0 + main_~b~0) % 4294967296 VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L17] assert false; VAL [main_~a~0=0, main_~b~0=0, main_~result~0=0] [L13] ~a~0 := #t~nondet1; [L13] havoc #t~nondet1; [L14] ~b~0 := #t~nondet2; [L14] havoc #t~nondet2; [L15] CALL call #t~ret3 := sum(~a~0, ~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call #t~ret3 := sum(~a~0, ~b~0); [L15] ~result~0 := #t~ret3; [L15] havoc #t~ret3; [L16] COND TRUE ~result~0 % 4294967296 == (~a~0 + ~b~0) % 4294967296 [L17] assert false; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [L13] ~a~0 := #t~nondet1; [L13] havoc #t~nondet1; [L14] ~b~0 := #t~nondet2; [L14] havoc #t~nondet2; [L15] CALL call #t~ret3 := sum(~a~0, ~b~0); VAL [#in~m=0, #in~n=0] [L4-L10] ~n := #in~n; [L4-L10] ~m := #in~m; VAL [#in~m=0, #in~n=0, ~m=0, ~n=0] [L5] COND TRUE 0 == ~n % 4294967296 [L6] #res := ~m; VAL [#in~m=0, #in~n=0, #res=0, ~m=0, ~n=0] [L15] RET call #t~ret3 := sum(~a~0, ~b~0); [L15] ~result~0 := #t~ret3; [L15] havoc #t~ret3; [L16] COND TRUE ~result~0 % 4294967296 == (~a~0 + ~b~0) % 4294967296 [L17] assert false; [L13] unsigned int a = __VERIFIER_nondet_uint(); [L14] unsigned int b = __VERIFIER_nondet_uint(); [L15] CALL, EXPR sum(a, b) VAL [\old(m)=0, \old(n)=0] [L5] COND TRUE n == 0 [L6] return m; VAL [\old(m)=0, \old(n)=0, \result=0, m=0, n=0] [L15] RET, EXPR sum(a, b) [L15] unsigned int result = sum(a, b); [L16] COND TRUE result == a + b [L17] __VERIFIER_error() ----- [2018-11-23 06:43:22,322 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_541e3a13-8e09-4ed0-a6e6-f344733eeb09/bin-2019/ukojak/witness.graphml [2018-11-23 06:43:22,322 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:43:22,323 INFO L168 Benchmark]: Toolchain (without parser) took 588.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:43:22,324 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:43:22,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.58 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:43:22,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 06:43:22,326 INFO L168 Benchmark]: Boogie Preprocessor took 12.14 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:43:22,326 INFO L168 Benchmark]: RCFGBuilder took 171.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-23 06:43:22,327 INFO L168 Benchmark]: CodeCheck took 200.90 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: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:43:22,328 INFO L168 Benchmark]: Witness Printer took 38.14 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 06:43:22,332 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, 15 locations, 1 error locations. UNSAFE Result, 0.1s 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, 9 NumberOfCodeBlocks, 9 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: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int a = __VERIFIER_nondet_uint(); [L14] unsigned int b = __VERIFIER_nondet_uint(); [L15] CALL, EXPR sum(a, b) VAL [\old(m)=0, \old(n)=0] [L5] COND TRUE n == 0 [L6] return m; VAL [\old(m)=0, \old(n)=0, \result=0, m=0, n=0] [L15] RET, EXPR sum(a, b) [L15] unsigned int result = sum(a, b); [L16] COND TRUE result == a + b [L17] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.58 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 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 21.00 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.14 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 171.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * CodeCheck took 200.90 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: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Witness Printer took 38.14 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...