./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_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_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/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_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/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_48ab395b-2280-4f4b-adb2-1458d7871943/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 eb1b2205f0919d2a031b45999a648611cc5aa2be86e33a26ab3ee468eef34c3a --- 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 21:52:55,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 21:52:55,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 21:52:55,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 21:52:55,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 21:52:55,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 21:52:55,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 21:52:55,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 21:52:55,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 21:52:55,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 21:52:55,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 21:52:55,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 21:52:55,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 21:52:55,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 21:52:55,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 21:52:55,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 21:52:55,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 21:52:55,325 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 21:52:55,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 21:52:55,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 21:52:55,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 21:52:55,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 21:52:55,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 21:52:55,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 21:52:55,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 21:52:55,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 21:52:55,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 21:52:55,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 21:52:55,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 21:52:55,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 21:52:55,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 21:52:55,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 21:52:55,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 21:52:55,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 21:52:55,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 21:52:55,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 21:52:55,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 21:52:55,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 21:52:55,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 21:52:55,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 21:52:55,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 21:52:55,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 21:52:55,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 21:52:55,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 21:52:55,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 21:52:55,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 21:52:55,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 21:52:55,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 21:52:55,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 21:52:55,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 21:52:55,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 21:52:55,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 21:52:55,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 21:52:55,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 21:52:55,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 21:52:55,364 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 21:52:55,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 21:52:55,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 21:52:55,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 21:52:55,364 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 21:52:55,364 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 21:52:55,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 21:52:55,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:52:55,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 21:52:55,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 21:52:55,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 21:52:55,365 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 21:52:55,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 21:52:55,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 21:52:55,366 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_48ab395b-2280-4f4b-adb2-1458d7871943/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb1b2205f0919d2a031b45999a648611cc5aa2be86e33a26ab3ee468eef34c3a [2022-12-14 21:52:55,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 21:52:55,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 21:52:55,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 21:52:55,585 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 21:52:55,585 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 21:52:55,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_good.i [2022-12-14 21:52:58,149 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 21:52:58,345 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 21:52:58,345 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_66_good.i [2022-12-14 21:52:58,357 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/data/ef2fc1604/3ab6e1888aea46e5a510e090a8a126be/FLAG1f5912150 [2022-12-14 21:52:58,368 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/data/ef2fc1604/3ab6e1888aea46e5a510e090a8a126be [2022-12-14 21:52:58,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 21:52:58,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 21:52:58,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 21:52:58,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 21:52:58,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 21:52:58,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:52:58" (1/1) ... [2022-12-14 21:52:58,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdaac97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:58, skipping insertion in model container [2022-12-14 21:52:58,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:52:58" (1/1) ... [2022-12-14 21:52:58,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 21:52:58,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 21:52:58,641 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 21:52:58,920 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 21:52:58,925 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:52:58,926 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:52:58,928 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:52:58,929 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:52:58,949 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 21:52:58,952 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 21:52:58,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:52:58,964 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 21:52:58,979 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 21:52:59,012 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 21:52:59,014 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:52:59,014 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 21:52:59,016 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:52:59,017 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 21:52:59,021 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 21:52:59,022 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 21:52:59,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 21:52:59,107 INFO L208 MainTranslator]: Completed translation [2022-12-14 21:52:59,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59 WrapperNode [2022-12-14 21:52:59,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 21:52:59,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 21:52:59,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 21:52:59,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 21:52:59,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,145 INFO L138 Inliner]: procedures = 504, calls = 77, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 79 [2022-12-14 21:52:59,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 21:52:59,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 21:52:59,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 21:52:59,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 21:52:59,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 21:52:59,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 21:52:59,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 21:52:59,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 21:52:59,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 21:52:59,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 21:52:59,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 21:52:59,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 21:52:59,215 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 21:52:59,215 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 21:52:59,215 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 21:52:59,216 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 21:52:59,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 21:52:59,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 21:52:59,331 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 21:52:59,332 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 21:52:59,451 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 21:52:59,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 21:52:59,474 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 21:52:59,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:52:59 BoogieIcfgContainer [2022-12-14 21:52:59,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 21:52:59,477 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 21:52:59,477 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 21:52:59,484 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 21:52:59,484 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:52:59" (1/1) ... [2022-12-14 21:52:59,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 21:52:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:52:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-12-14 21:52:59,530 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-12-14 21:52:59,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 21:52:59,534 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:52:59,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:52:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:52:59,859 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 21:52:59,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:52:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-12-14 21:52:59,886 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-12-14 21:52:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 21:52:59,887 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:52:59,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:52:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:52:59,989 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 21:53:00,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:53:00,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-12-14 21:53:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-12-14 21:53:00,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 21:53:00,021 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:53:00,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:53:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:53:00,059 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 21:53:00,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:53:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2022-12-14 21:53:00,084 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-12-14 21:53:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 21:53:00,085 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:53:00,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:53:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:53:00,360 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 21:53:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:53:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2022-12-14 21:53:00,446 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-12-14 21:53:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 21:53:00,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 21:53:00,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 21:53:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 21:53:00,664 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 21:53:00,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 21:53:00,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 23 states and 28 transitions. [2022-12-14 21:53:00,746 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-12-14 21:53:00,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 21:53:00,746 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-12-14 21:53:00,752 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 21:53:00,777 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 21:53:00,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 09:53:00 ImpRootNode [2022-12-14 21:53:00,781 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 21:53:00,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 21:53:00,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 21:53:00,782 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 21:53:00,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:52:59" (3/4) ... [2022-12-14 21:53:00,786 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 21:53:00,791 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 21:53:00,792 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 21:53:00,795 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 21:53:00,796 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 21:53:00,796 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 21:53:00,796 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 21:53:00,828 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 21:53:00,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 21:53:00,828 INFO L158 Benchmark]: Toolchain (without parser) took 2457.39ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 119.5MB in the beginning and 55.9MB in the end (delta: 63.6MB). Peak memory consumption was 98.0MB. Max. memory is 16.1GB. [2022-12-14 21:53:00,829 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 21:53:00,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.70ms. Allocated memory is still 161.5MB. Free memory was 119.2MB in the beginning and 100.5MB in the end (delta: 18.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2022-12-14 21:53:00,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.61ms. Allocated memory is still 161.5MB. Free memory was 100.5MB in the beginning and 97.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:53:00,829 INFO L158 Benchmark]: Boogie Preprocessor took 19.65ms. Allocated memory is still 161.5MB. Free memory was 97.6MB in the beginning and 96.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:53:00,830 INFO L158 Benchmark]: RCFGBuilder took 309.75ms. Allocated memory is still 161.5MB. Free memory was 96.2MB in the beginning and 78.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 21:53:00,830 INFO L158 Benchmark]: CodeCheck took 1304.66ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 78.7MB in the beginning and 59.1MB in the end (delta: 19.6MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2022-12-14 21:53:00,830 INFO L158 Benchmark]: Witness Printer took 46.13ms. Allocated memory is still 195.0MB. Free memory was 59.1MB in the beginning and 55.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 21:53:00,832 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: 1.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 84 mSDtfsCounter, 112 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 438 GetRequests, 412 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1604]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1604]: 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: 1588]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.70ms. Allocated memory is still 161.5MB. Free memory was 119.2MB in the beginning and 100.5MB in the end (delta: 18.6MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.61ms. Allocated memory is still 161.5MB. Free memory was 100.5MB in the beginning and 97.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.65ms. Allocated memory is still 161.5MB. Free memory was 97.6MB in the beginning and 96.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.75ms. Allocated memory is still 161.5MB. Free memory was 96.2MB in the beginning and 78.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1304.66ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 78.7MB in the beginning and 59.1MB in the end (delta: 19.6MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. * Witness Printer took 46.13ms. Allocated memory is still 195.0MB. Free memory was 59.1MB in the beginning and 55.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 21:53:00,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48ab395b-2280-4f4b-adb2-1458d7871943/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