./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ --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 32bit --witnessprinter.graph.data.programhash 13160766ab5e643bd08f9724b40035ea4b7373673380c24ecb20b0478591b2b8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:41:43,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:41:43,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:41:43,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:41:43,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:41:43,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:41:43,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:41:43,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:41:43,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:41:43,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:41:43,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:41:43,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:41:43,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:41:43,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:41:43,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:41:43,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:41:43,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:41:43,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:41:43,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:41:43,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:41:43,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:41:43,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:41:43,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:41:43,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:41:43,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:41:43,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:41:43,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:41:43,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:41:43,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:41:43,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:41:43,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:41:43,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:41:43,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:41:43,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:41:43,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:41:43,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:41:43,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:41:43,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:41:43,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:41:43,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:41:43,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:41:43,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-23 01:41:43,334 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:41:43,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:41:43,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:41:43,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:41:43,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:41:43,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:41:43,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:41:43,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:41:43,349 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 01:41:43,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:41:43,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:41:43,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:41:43,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:41:43,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:41:43,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:41:43,352 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 01:41:43,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:41:43,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:41:43,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:41:43,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:41:43,354 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:41:43,354 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:41:43,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:41:43,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:41:43,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:41:43,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:41:43,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:41:43,356 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:41:43,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:41:43,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:41:43,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13160766ab5e643bd08f9724b40035ea4b7373673380c24ecb20b0478591b2b8 [2021-11-23 01:41:43,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:41:43,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:41:43,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:41:43,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:41:43,705 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:41:43,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/recursive-simple/sum_non.c [2021-11-23 01:41:43,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/data/119ece4fd/a325b85e895c40149f3f8ccb34d0671f/FLAG9a264dbca [2021-11-23 01:41:44,382 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:41:44,383 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/sv-benchmarks/c/recursive-simple/sum_non.c [2021-11-23 01:41:44,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/data/119ece4fd/a325b85e895c40149f3f8ccb34d0671f/FLAG9a264dbca [2021-11-23 01:41:44,732 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/data/119ece4fd/a325b85e895c40149f3f8ccb34d0671f [2021-11-23 01:41:44,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:41:44,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:41:44,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:41:44,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:41:44,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:41:44,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:44,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37de5501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44, skipping insertion in model container [2021-11-23 01:41:44,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:44,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:41:44,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:41:44,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/sv-benchmarks/c/recursive-simple/sum_non.c[561,574] [2021-11-23 01:41:44,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:41:44,931 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:41:44,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/sv-benchmarks/c/recursive-simple/sum_non.c[561,574] [2021-11-23 01:41:44,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:41:44,993 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:41:44,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44 WrapperNode [2021-11-23 01:41:44,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:41:45,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:41:45,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:41:45,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:41:45,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,050 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-11-23 01:41:45,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:41:45,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:41:45,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:41:45,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:41:45,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,086 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:41:45,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:41:45,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:41:45,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:41:45,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:41:44" (1/1) ... [2021-11-23 01:41:45,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:41:45,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:41:45,162 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:41:45,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:41:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:41:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:41:45,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:41:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-11-23 01:41:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-11-23 01:41:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:41:45,310 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:41:45,312 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:41:45,511 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:41:45,534 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:41:45,535 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:41:45,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:45 BoogieIcfgContainer [2021-11-23 01:41:45,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:41:45,539 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:41:45,539 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:41:45,552 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:41:45,552 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:45" (1/1) ... [2021-11-23 01:41:45,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:41:45,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 26 states and 27 transitions. [2021-11-23 01:41:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-23 01:41:45,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:41:45,654 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:45,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:41:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:46,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 32 transitions. [2021-11-23 01:41:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-11-23 01:41:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:41:46,084 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:46,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:41:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:41:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:41:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 37 transitions. [2021-11-23 01:41:46,523 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-11-23 01:41:46,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:41:46,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:41:46,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:41:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:41:46,536 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:41:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:41:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:41:46,576 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:41:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:41:46,602 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-11-23 01:41:46,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:41:46 ImpRootNode [2021-11-23 01:41:46,645 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:41:46,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:41:46,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:41:46,647 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:41:46,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:41:45" (3/4) ... [2021-11-23 01:41:46,650 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:41:46,702 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:41:46,702 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:41:46,703 INFO L158 Benchmark]: Toolchain (without parser) took 1964.88ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 63.4MB in the beginning and 82.2MB in the end (delta: -18.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-11-23 01:41:46,704 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:41:46,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.61ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 63.2MB in the beginning and 92.6MB in the end (delta: -29.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-11-23 01:41:46,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.51ms. Allocated memory is still 115.3MB. Free memory was 92.6MB in the beginning and 91.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:41:46,709 INFO L158 Benchmark]: Boogie Preprocessor took 57.04ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 90.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:41:46,710 INFO L158 Benchmark]: RCFGBuilder took 428.99ms. Allocated memory is still 115.3MB. Free memory was 90.2MB in the beginning and 80.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:41:46,711 INFO L158 Benchmark]: CodeCheck took 1105.59ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 83.9MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:41:46,714 INFO L158 Benchmark]: Witness Printer took 55.29ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 82.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:41:46,716 INFO L339 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, 26 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 18 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 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 DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a = __VERIFIER_nondet_int(); [L16] int b = __VERIFIER_nondet_int(); [L17] CALL sum(a, b) VAL [\old(m)=-1, \old(n)=-2147483648] [L7] COND TRUE n <= 0 VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] [L8] m + n VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 55.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.61ms. Allocated memory was 90.2MB in the beginning and 115.3MB in the end (delta: 25.2MB). Free memory was 63.2MB in the beginning and 92.6MB in the end (delta: -29.4MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.51ms. Allocated memory is still 115.3MB. Free memory was 92.6MB in the beginning and 91.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.04ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 90.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.99ms. Allocated memory is still 115.3MB. Free memory was 90.2MB in the beginning and 80.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1105.59ms. Allocated memory is still 115.3MB. Free memory was 80.2MB in the beginning and 83.9MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.29ms. Allocated memory is still 115.3MB. Free memory was 83.4MB in the beginning and 82.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:41:46,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbdc6433-c97b-4ae7-b4c0-bb6979d5bff0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)