./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e --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 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 22:38:39,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 22:38:39,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 22:38:39,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 22:38:39,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 22:38:39,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 22:38:39,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 22:38:39,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 22:38:39,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 22:38:39,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 22:38:39,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 22:38:39,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 22:38:39,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 22:38:39,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 22:38:39,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 22:38:39,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 22:38:39,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 22:38:39,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 22:38:39,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 22:38:39,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 22:38:39,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 22:38:39,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 22:38:39,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 22:38:39,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 22:38:39,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 22:38:39,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 22:38:39,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 22:38:39,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 22:38:39,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 22:38:39,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 22:38:39,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 22:38:39,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 22:38:39,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 22:38:39,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 22:38:39,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 22:38:39,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 22:38:39,465 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 22:38:39,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 22:38:39,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 22:38:39,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 22:38:39,467 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 22:38:39,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-11-13 22:38:39,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 22:38:39,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 22:38:39,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 22:38:39,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 22:38:39,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 22:38:39,516 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 22:38:39,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 22:38:39,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 22:38:39,517 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 22:38:39,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 22:38:39,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 22:38:39,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 22:38:39,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 22:38:39,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 22:38:39,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 22:38:39,526 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-13 22:38:39,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 22:38:39,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 22:38:39,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 22:38:39,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 22:38:39,527 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 22:38:39,527 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 22:38:39,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 22:38:39,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:38:39,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 22:38:39,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 22:38:39,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 22:38:39,528 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 22:38:39,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 22:38:39,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 22:38:39,530 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_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 [2021-11-13 22:38:39,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 22:38:39,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 22:38:39,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 22:38:39,835 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 22:38:39,836 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 22:38:39,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2021-11-13 22:38:39,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/data/c8daea6e3/39e4f2dc2397406f9df7ed6ebbff7a9a/FLAG904e03642 [2021-11-13 22:38:40,451 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 22:38:40,452 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2021-11-13 22:38:40,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/data/c8daea6e3/39e4f2dc2397406f9df7ed6ebbff7a9a/FLAG904e03642 [2021-11-13 22:38:40,806 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/data/c8daea6e3/39e4f2dc2397406f9df7ed6ebbff7a9a [2021-11-13 22:38:40,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 22:38:40,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 22:38:40,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 22:38:40,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 22:38:40,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 22:38:40,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:38:40" (1/1) ... [2021-11-13 22:38:40,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9e4108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:40, skipping insertion in model container [2021-11-13 22:38:40,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:38:40" (1/1) ... [2021-11-13 22:38:40,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 22:38:40,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 22:38:41,046 WARN L228 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_c8e37628-d258-44b7-bbef-3d96343c3906/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c[528,541] [2021-11-13 22:38:41,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:38:41,075 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 22:38:41,093 WARN L228 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_c8e37628-d258-44b7-bbef-3d96343c3906/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c[528,541] [2021-11-13 22:38:41,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 22:38:41,108 INFO L208 MainTranslator]: Completed translation [2021-11-13 22:38:41,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41 WrapperNode [2021-11-13 22:38:41,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 22:38:41,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 22:38:41,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 22:38:41,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 22:38:41,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 22:38:41,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 22:38:41,143 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 22:38:41,143 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 22:38:41,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 22:38:41,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 22:38:41,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 22:38:41,176 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 22:38:41,177 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 22:38:41,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/z3 [2021-11-13 22:38:41,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 22:38:41,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 22:38:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 22:38:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 22:38:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 22:38:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-13 22:38:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-13 22:38:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 22:38:41,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 22:38:41,540 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 22:38:41,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:38:41 BoogieIcfgContainer [2021-11-13 22:38:41,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 22:38:41,544 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 22:38:41,545 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 22:38:41,556 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 22:38:41,556 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:38:41" (1/1) ... [2021-11-13 22:38:41,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 22:38:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:38:41,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2021-11-13 22:38:41,653 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-13 22:38:41,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 22:38:41,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:38:41,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:38:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:38:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 22:38:42,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:38:42,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2021-11-13 22:38:42,010 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-11-13 22:38:42,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 22:38:42,011 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:38:42,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:38:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:38:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 22:38:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:38:42,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2021-11-13 22:38:42,113 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-11-13 22:38:42,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 22:38:42,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:38:42,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:38:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:38:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-13 22:38:42,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:38:42,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2021-11-13 22:38:42,417 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2021-11-13 22:38:42,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 22:38:42,419 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:38:42,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:38:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:38:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 22:38:42,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:38:42,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2021-11-13 22:38:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-11-13 22:38:42,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 22:38:42,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 22:38:42,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 22:38:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 22:38:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 22:38:42,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 22:38:42,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2021-11-13 22:38:42,816 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-11-13 22:38:42,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 22:38:42,817 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2021-11-13 22:38:42,826 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-11-13 22:38:42,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:38:42 ImpRootNode [2021-11-13 22:38:42,930 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 22:38:42,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 22:38:42,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 22:38:42,932 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 22:38:42,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:38:41" (3/4) ... [2021-11-13 22:38:42,935 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 22:38:42,942 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-11-13 22:38:42,948 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-13 22:38:42,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-13 22:38:42,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 22:38:42,949 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 22:38:42,999 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 22:38:42,999 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 22:38:43,000 INFO L158 Benchmark]: Toolchain (without parser) took 2186.92ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 53.6MB in the beginning and 86.8MB in the end (delta: -33.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:38:43,002 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 70.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:38:43,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.29ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 70.7MB in the end (delta: -17.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-11-13 22:38:43,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.88ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:38:43,003 INFO L158 Benchmark]: Boogie Preprocessor took 30.75ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.4MB in the end (delta: 917.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 22:38:43,004 INFO L158 Benchmark]: RCFGBuilder took 369.64ms. Allocated memory is still 94.4MB. Free memory was 68.4MB in the beginning and 58.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 22:38:43,009 INFO L158 Benchmark]: CodeCheck took 1385.83ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.3MB in the beginning and 89.6MB in the end (delta: -31.3MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2021-11-13 22:38:43,010 INFO L158 Benchmark]: Witness Printer took 67.87ms. Allocated memory is still 113.2MB. Free memory was 89.6MB in the beginning and 86.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 22:38:43,012 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 6, 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, 127 SdHoareTripleChecker+Valid, 484.72ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 419.12ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 73 mSDtfsCounter, 172 mSolverCounterSat, 13.04ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 532 GetRequests, 502 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 159 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 43/60 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 - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 70.1MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.29ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 70.7MB in the end (delta: -17.4MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.88ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.75ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.4MB in the end (delta: 917.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 369.64ms. Allocated memory is still 94.4MB. Free memory was 68.4MB in the beginning and 58.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1385.83ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 58.3MB in the beginning and 89.6MB in the end (delta: -31.3MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. * Witness Printer took 67.87ms. Allocated memory is still 113.2MB. Free memory was 89.6MB in the beginning and 86.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 22:38:43,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8e37628-d258-44b7-bbef-3d96343c3906/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE