./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/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_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/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_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/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 d2a3a3607acc744c8a49262255ddf7d0022d52c5d55497e873e91bf5dc9bffe5 --- 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 22:51:15,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 22:51:15,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 22:51:15,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 22:51:15,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 22:51:15,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 22:51:15,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 22:51:15,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 22:51:15,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 22:51:15,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 22:51:15,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 22:51:15,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 22:51:15,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 22:51:15,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 22:51:15,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 22:51:15,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 22:51:15,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 22:51:15,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 22:51:15,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 22:51:15,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 22:51:15,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 22:51:15,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 22:51:15,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 22:51:15,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 22:51:15,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 22:51:15,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 22:51:15,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 22:51:15,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 22:51:15,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 22:51:15,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 22:51:15,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 22:51:15,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 22:51:15,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 22:51:15,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 22:51:15,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 22:51:15,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 22:51:15,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 22:51:15,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 22:51:15,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 22:51:15,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 22:51:15,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 22:51:15,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 22:51:15,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 22:51:15,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 22:51:15,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 22:51:15,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 22:51:15,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 22:51:15,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 22:51:15,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 22:51:15,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 22:51:15,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 22:51:15,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 22:51:15,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 22:51:15,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 22:51:15,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 22:51:15,377 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 22:51:15,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 22:51:15,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 22:51:15,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 22:51:15,378 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 22:51:15,378 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 22:51:15,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 22:51:15,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:51:15,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 22:51:15,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 22:51:15,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 22:51:15,379 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 22:51:15,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 22:51:15,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 22:51:15,380 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_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2a3a3607acc744c8a49262255ddf7d0022d52c5d55497e873e91bf5dc9bffe5 [2022-12-14 22:51:15,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 22:51:15,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 22:51:15,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 22:51:15,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 22:51:15,571 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 22:51:15,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_good.i [2022-12-14 22:51:18,049 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 22:51:18,318 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 22:51:18,318 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_42_good.i [2022-12-14 22:51:18,335 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/data/1a0a73b75/4d6044cdbcac490abec3c0f3937e679d/FLAG0919da234 [2022-12-14 22:51:18,606 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/data/1a0a73b75/4d6044cdbcac490abec3c0f3937e679d [2022-12-14 22:51:18,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 22:51:18,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 22:51:18,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 22:51:18,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 22:51:18,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 22:51:18,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:18" (1/1) ... [2022-12-14 22:51:18,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@596b157e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:18, skipping insertion in model container [2022-12-14 22:51:18,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:51:18" (1/1) ... [2022-12-14 22:51:18,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 22:51:18,661 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 22:51:18,911 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 22:51:19,218 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 22:51:19,222 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 22:51:19,224 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 22:51:19,225 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 22:51:19,226 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 22:51:19,247 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 22:51:19,252 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 22:51:19,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:51:19,261 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 22:51:19,273 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 22:51:19,302 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 22:51:19,303 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 22:51:19,304 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 22:51:19,306 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 22:51:19,306 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 22:51:19,309 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 22:51:19,311 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 22:51:19,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 22:51:19,387 INFO L208 MainTranslator]: Completed translation [2022-12-14 22:51:19,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19 WrapperNode [2022-12-14 22:51:19,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 22:51:19,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 22:51:19,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 22:51:19,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 22:51:19,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,424 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 75 [2022-12-14 22:51:19,424 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 22:51:19,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 22:51:19,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 22:51:19,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 22:51:19,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,438 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 22:51:19,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 22:51:19,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 22:51:19,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 22:51:19,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 22:51:19,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 22:51:19,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 22:51:19,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 22:51:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 22:51:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 22:51:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 22:51:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 22:51:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 22:51:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 22:51:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 22:51:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 22:51:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 22:51:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 22:51:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 22:51:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 22:51:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 22:51:19,598 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 22:51:19,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 22:51:19,707 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 22:51:19,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 22:51:19,737 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 22:51:19,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:19 BoogieIcfgContainer [2022-12-14 22:51:19,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 22:51:19,739 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 22:51:19,739 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 22:51:19,747 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 22:51:19,748 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:19" (1/1) ... [2022-12-14 22:51:19,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 22:51:19,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-12-14 22:51:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-12-14 22:51:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 22:51:19,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:19,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:19,977 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 22:51:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-12-14 22:51:20,004 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-12-14 22:51:20,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 22:51:20,004 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:20,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:20,091 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 22:51:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:20,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-12-14 22:51:20,125 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-12-14 22:51:20,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 22:51:20,125 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:20,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:20,193 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 22:51:20,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2022-12-14 22:51:20,209 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-12-14 22:51:20,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 22:51:20,209 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 22:51:20,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 22:51:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 22:51:20,256 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 22:51:20,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 22:51:20,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2022-12-14 22:51:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-12-14 22:51:20,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 22:51:20,295 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-12-14 22:51:20,303 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 22:51:20,320 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 22:51:20,324 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 22:51:20,324 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 22:51:20,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 10:51:20 ImpRootNode [2022-12-14 22:51:20,324 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 22:51:20,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 22:51:20,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 22:51:20,325 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 22:51:20,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:51:19" (3/4) ... [2022-12-14 22:51:20,329 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 22:51:20,334 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 22:51:20,334 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 22:51:20,338 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 22:51:20,338 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 22:51:20,339 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 22:51:20,339 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 22:51:20,373 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 22:51:20,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 22:51:20,374 INFO L158 Benchmark]: Toolchain (without parser) took 1764.92ms. Allocated memory is still 144.7MB. Free memory was 109.9MB in the beginning and 88.9MB in the end (delta: 21.0MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-12-14 22:51:20,374 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 22:51:20,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.14ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 103.7MB in the end (delta: 5.7MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2022-12-14 22:51:20,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.60ms. Allocated memory is still 144.7MB. Free memory was 103.7MB in the beginning and 100.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:51:20,375 INFO L158 Benchmark]: Boogie Preprocessor took 15.99ms. Allocated memory is still 144.7MB. Free memory was 100.8MB in the beginning and 99.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 22:51:20,375 INFO L158 Benchmark]: RCFGBuilder took 297.89ms. Allocated memory is still 144.7MB. Free memory was 99.5MB in the beginning and 83.4MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 22:51:20,376 INFO L158 Benchmark]: CodeCheck took 585.17ms. Allocated memory is still 144.7MB. Free memory was 83.4MB in the beginning and 92.0MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 22:51:20,376 INFO L158 Benchmark]: Witness Printer took 48.49ms. Allocated memory is still 144.7MB. Free memory was 92.0MB in the beginning and 88.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 22:51:20,378 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: 0.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 54 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 308 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 61 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1559]: 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: 1578]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1567]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 119.5MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.14ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 103.7MB in the end (delta: 5.7MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.60ms. Allocated memory is still 144.7MB. Free memory was 103.7MB in the beginning and 100.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.99ms. Allocated memory is still 144.7MB. Free memory was 100.8MB in the beginning and 99.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.89ms. Allocated memory is still 144.7MB. Free memory was 99.5MB in the beginning and 83.4MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 585.17ms. Allocated memory is still 144.7MB. Free memory was 83.4MB in the beginning and 92.0MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.49ms. Allocated memory is still 144.7MB. Free memory was 92.0MB in the beginning and 88.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 22:51:20,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac46e29b-a1d3-4fb1-abb9-2734af8a00ea/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