./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dfd396dadb88a7fd8fc176bc0a74b515ffc14f5d6ea4d1c05c5923385b1fd956 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 21:22:08,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:22:08,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:22:08,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:22:08,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:22:08,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:22:08,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:22:08,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:22:08,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:22:08,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:22:08,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:22:08,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:22:08,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:22:08,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:22:08,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:22:08,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:22:08,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:22:08,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:22:08,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:22:08,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:22:08,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:22:08,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:22:08,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:22:08,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:22:08,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:22:08,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:22:08,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:22:08,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:22:08,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:22:08,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:22:08,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:22:08,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:22:08,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:22:08,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:22:08,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:22:08,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:22:08,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:22:08,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:22:08,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:22:08,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:22:08,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:22:08,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 21:22:08,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:22:08,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:22:08,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:22:08,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:22:08,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:22:08,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:22:08,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:22:08,361 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:22:08,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:22:08,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:22:08,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:22:08,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:22:08,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:22:08,367 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 21:22:08,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:22:08,367 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:22:08,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:22:08,368 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:22:08,368 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:22:08,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:22:08,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:22:08,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:22:08,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:22:08,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:22:08,369 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:22:08,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:22:08,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:22:08,370 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_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd396dadb88a7fd8fc176bc0a74b515ffc14f5d6ea4d1c05c5923385b1fd956 [2022-12-14 21:22:08,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:22:08,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:22:08,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:22:08,578 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:22:08,578 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:22:08,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i [2022-12-14 21:22:11,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:22:11,359 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:22:11,359 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i [2022-12-14 21:22:11,376 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/data/fb7ba7fcf/df3b7a21e28b4c93a1f93b55802c3477/FLAG974649fa5 [2022-12-14 21:22:11,651 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/data/fb7ba7fcf/df3b7a21e28b4c93a1f93b55802c3477 [2022-12-14 21:22:11,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:22:11,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:22:11,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:22:11,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:22:11,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:22:11,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:22:11" (1/1) ... [2022-12-14 21:22:11,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f14980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:11, skipping insertion in model container [2022-12-14 21:22:11,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:22:11" (1/1) ... [2022-12-14 21:22:11,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:22:11,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:22:11,926 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 21:22:12,237 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 21:22:12,241 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:22:12,243 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:22:12,244 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:22:12,245 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:22:12,261 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 21:22:12,268 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 21:22:12,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:22:12,276 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:22:12,289 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 21:22:12,318 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 21:22:12,319 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:22:12,320 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:22:12,321 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:22:12,321 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:22:12,324 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 21:22:12,326 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 21:22:12,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:22:12,440 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:22:12,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12 WrapperNode [2022-12-14 21:22:12,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:22:12,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:22:12,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:22:12,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:22:12,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,487 INFO L138 Inliner]: procedures = 502, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2022-12-14 21:22:12,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:22:12,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:22:12,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:22:12,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:22:12,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,505 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:22:12,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:22:12,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:22:12,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:22:12,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:22:12,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:22:12,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:22:12,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:22:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 21:22:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 21:22:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:22:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 21:22:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 21:22:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 21:22:12,666 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:22:12,667 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:22:12,772 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:22:12,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:22:12,806 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 21:22:12,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:22:12 BoogieIcfgContainer [2022-12-14 21:22:12,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:22:12,809 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:22:12,809 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:22:12,818 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:22:12,818 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:22:12" (1/1) ... [2022-12-14 21:22:12,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:22:12,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:22:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-12-14 21:22:12,864 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-12-14 21:22:12,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 21:22:12,867 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:22:12,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:22:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:22:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:22:13,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:22:13,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-12-14 21:22:13,056 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-12-14 21:22:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 21:22:13,057 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:22:13,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:22:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:22:13,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 21:22:13,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:22:13,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2022-12-14 21:22:13,171 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-12-14 21:22:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 21:22:13,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:22:13,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:22:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:22:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:22:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:22:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2022-12-14 21:22:13,234 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-12-14 21:22:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 21:22:13,234 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:22:13,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:22:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:22:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:22:13,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:22:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 29 transitions. [2022-12-14 21:22:13,303 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-12-14 21:22:13,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 21:22:13,304 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:22:13,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:22:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:22:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 21:22:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:22:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 28 transitions. [2022-12-14 21:22:13,388 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-12-14 21:22:13,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 21:22:13,389 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-12-14 21:22:13,396 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 21:22:13,423 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2022-12-14 21:22:13,432 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:22:13,432 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:22:13,433 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:22:13,433 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:22:13,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:22:13 ImpRootNode [2022-12-14 21:22:13,433 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:22:13,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:22:13,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:22:13,434 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:22:13,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:22:12" (3/4) ... [2022-12-14 21:22:13,437 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 21:22:13,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 21:22:13,443 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 21:22:13,446 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-12-14 21:22:13,446 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 21:22:13,447 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 21:22:13,447 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 21:22:13,484 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:22:13,484 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:22:13,485 INFO L158 Benchmark]: Toolchain (without parser) took 1830.14ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 90.5MB in the beginning and 63.4MB in the end (delta: 27.1MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2022-12-14 21:22:13,485 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:22:13,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 785.10ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 90.1MB in the beginning and 94.7MB in the end (delta: -4.6MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2022-12-14 21:22:13,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.19ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 91.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 21:22:13,486 INFO L158 Benchmark]: Boogie Preprocessor took 20.59ms. Allocated memory is still 151.0MB. Free memory was 91.8MB in the beginning and 90.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:22:13,486 INFO L158 Benchmark]: RCFGBuilder took 299.65ms. Allocated memory is still 151.0MB. Free memory was 89.8MB in the beginning and 74.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 21:22:13,486 INFO L158 Benchmark]: CodeCheck took 624.26ms. Allocated memory is still 151.0MB. Free memory was 74.4MB in the beginning and 66.5MB in the end (delta: 7.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-12-14 21:22:13,487 INFO L158 Benchmark]: Witness Printer took 50.00ms. Allocated memory is still 151.0MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:22:13,488 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 3 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 176 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 84 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 406 GetRequests, 388 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1588]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1588]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1579]: Loop Invariant Derived loop invariant: data + 2 <= 0 && 0 <= data + 2 - InvariantResult [Line: 1567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1548]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1601]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 785.10ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 90.1MB in the beginning and 94.7MB in the end (delta: -4.6MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.19ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 91.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.59ms. Allocated memory is still 151.0MB. Free memory was 91.8MB in the beginning and 90.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.65ms. Allocated memory is still 151.0MB. Free memory was 89.8MB in the beginning and 74.4MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 624.26ms. Allocated memory is still 151.0MB. Free memory was 74.4MB in the beginning and 66.5MB in the end (delta: 7.8MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 50.00ms. Allocated memory is still 151.0MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 21:22:13,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3565eef4-ab3d-4040-b7d4-3eed0a92ed23/bin/ukojak-rkRKPMF4O4/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