./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ --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 bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 --- 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-6b4ec56 [2022-11-20 16:56:12,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:56:12,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:56:12,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:56:12,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:56:12,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:56:12,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:56:12,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:56:12,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:56:12,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:56:12,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:56:12,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:56:12,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:56:12,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:56:12,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:56:12,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:56:12,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:56:12,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:56:12,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:56:12,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:56:12,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:56:12,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:56:12,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:56:12,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:56:12,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:56:12,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:56:12,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:56:12,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:56:12,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:56:12,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:56:12,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:56:12,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:56:12,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:56:12,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:56:12,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:56:12,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:56:12,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:56:12,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:56:12,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:56:12,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:56:12,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:56:12,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 16:56:13,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:56:13,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:56:13,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:56:13,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:56:13,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:56:13,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:56:13,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:56:13,004 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:56:13,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:56:13,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:56:13,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:56:13,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:56:13,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:56:13,006 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:56:13,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:56:13,006 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:56:13,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:56:13,007 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:56:13,007 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:56:13,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:56:13,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:56:13,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:56:13,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:56:13,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:56:13,008 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 16:56:13,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:56:13,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:56:13,009 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_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 [2022-11-20 16:56:13,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:56:13,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:56:13,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:56:13,269 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:56:13,270 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:56:13,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-20 16:56:16,270 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:56:16,721 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:56:16,723 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-20 16:56:16,749 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data/3e97069de/01a1923350df441b9ceccbead922ebb2/FLAG42686bcde [2022-11-20 16:56:16,767 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data/3e97069de/01a1923350df441b9ceccbead922ebb2 [2022-11-20 16:56:16,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:56:16,771 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:56:16,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:56:16,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:56:16,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:56:16,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:56:16" (1/1) ... [2022-11-20 16:56:16,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4abaf624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:16, skipping insertion in model container [2022-11-20 16:56:16,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:56:16" (1/1) ... [2022-11-20 16:56:16,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:56:16,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:56:17,256 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:56:17,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:56:17,774 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:56:17,796 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:56:17,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:56:18,063 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:56:18,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18 WrapperNode [2022-11-20 16:56:18,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:56:18,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:56:18,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:56:18,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:56:18,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,137 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-11-20 16:56:18,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:56:18,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:56:18,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:56:18,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:56:18,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:56:18,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:56:18,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:56:18,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:56:18,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:56:18,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 16:56:18,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 16:56:18,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 16:56:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 16:56:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 16:56:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 16:56:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:56:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 16:56:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:56:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:56:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:56:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:56:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 16:56:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:56:18,461 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:56:18,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:56:18,694 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:56:18,747 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:56:18,747 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 16:56:18,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:56:18 BoogieIcfgContainer [2022-11-20 16:56:18,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:56:18,751 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 16:56:18,751 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 16:56:18,761 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 16:56:18,761 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:56:18" (1/1) ... [2022-11-20 16:56:18,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:56:18,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:56:18,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2022-11-20 16:56:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-11-20 16:56:18,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 16:56:18,851 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:56:18,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:56:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:56:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:56:19,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:56:19,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-11-20 16:56:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-20 16:56:19,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 16:56:19,178 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:56:19,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:56:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:56:19,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:56:19,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:56:19,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2022-11-20 16:56:19,417 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-11-20 16:56:19,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 16:56:19,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:56:19,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:56:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:56:19,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:56:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:56:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2022-11-20 16:56:19,599 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-11-20 16:56:19,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 16:56:19,599 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:56:19,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:56:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:56:19,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 16:56:19,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:56:19,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2022-11-20 16:56:19,738 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-20 16:56:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 16:56:19,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:56:19,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:56:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:56:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:56:20,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:56:20,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2022-11-20 16:56:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2022-11-20 16:56:20,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 16:56:20,163 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:56:20,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:56:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:56:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:56:20,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:56:20,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2022-11-20 16:56:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2022-11-20 16:56:20,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 16:56:20,387 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:56:20,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:56:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:56:20,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:56:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:56:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:56:20,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:56:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:56:20,511 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2022-11-20 16:56:20,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:56:20 ImpRootNode [2022-11-20 16:56:20,555 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 16:56:20,556 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:56:20,556 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:56:20,558 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:56:20,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:56:18" (3/4) ... [2022-11-20 16:56:20,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 16:56:20,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:56:20,566 INFO L158 Benchmark]: Toolchain (without parser) took 3794.84ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 72.2MB in the end (delta: 67.6MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-11-20 16:56:20,567 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory was 61.8MB in the beginning and 61.7MB in the end (delta: 91.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:56:20,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1293.09ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 128.3MB in the end (delta: 11.5MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2022-11-20 16:56:20,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.79ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 124.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 16:56:20,570 INFO L158 Benchmark]: Boogie Preprocessor took 27.95ms. Allocated memory is still 172.0MB. Free memory was 124.9MB in the beginning and 123.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:56:20,571 INFO L158 Benchmark]: RCFGBuilder took 582.92ms. Allocated memory is still 172.0MB. Free memory was 123.6MB in the beginning and 107.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 16:56:20,573 INFO L158 Benchmark]: CodeCheck took 1804.62ms. Allocated memory is still 172.0MB. Free memory was 107.4MB in the beginning and 72.2MB in the end (delta: 35.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 16:56:20,573 INFO L158 Benchmark]: Witness Printer took 9.24ms. Allocated memory is still 172.0MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:56:20,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 198 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 122 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 92 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 504 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 6/7 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 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [\old(argc)=31, argc=31, argv={30:29}, argv={30:29}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL CWE191_Integer_Underflow__int_fgets_postdec_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553] i++ VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1567] COND TRUE j < 1 [L1570] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory was 61.8MB in the beginning and 61.7MB in the end (delta: 91.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1293.09ms. Allocated memory is still 172.0MB. Free memory was 139.8MB in the beginning and 128.3MB in the end (delta: 11.5MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.79ms. Allocated memory is still 172.0MB. Free memory was 128.3MB in the beginning and 124.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.95ms. Allocated memory is still 172.0MB. Free memory was 124.9MB in the beginning and 123.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 582.92ms. Allocated memory is still 172.0MB. Free memory was 123.6MB in the beginning and 107.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1804.62ms. Allocated memory is still 172.0MB. Free memory was 107.4MB in the beginning and 72.2MB in the end (delta: 35.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 9.24ms. Allocated memory is still 172.0MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 16:56:20,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ --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 bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 --- 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-6b4ec56 [2022-11-20 16:56:23,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:56:23,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:56:23,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:56:23,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:56:23,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:56:23,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:56:23,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:56:23,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:56:23,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:56:23,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:56:23,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:56:23,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:56:23,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:56:23,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:56:23,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:56:23,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:56:23,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:56:23,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:56:23,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:56:23,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:56:23,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:56:23,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:56:23,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:56:23,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:56:23,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:56:23,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:56:23,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:56:23,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:56:23,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:56:23,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:56:23,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:56:23,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:56:23,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:56:23,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:56:23,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:56:23,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:56:23,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:56:23,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:56:23,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:56:23,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:56:23,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2022-11-20 16:56:23,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:56:23,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:56:23,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:56:23,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:56:23,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:56:23,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:56:23,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:56:23,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:56:23,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:56:23,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:56:23,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:56:23,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:56:23,306 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 16:56:23,306 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 16:56:23,306 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:56:23,307 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 16:56:23,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:56:23,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:56:23,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:56:23,307 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:56:23,308 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:56:23,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:56:23,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:56:23,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:56:23,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:56:23,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:56:23,309 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 16:56:23,309 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 16:56:23,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:56:23,309 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-20 16:56:23,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 16:56:23,310 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 [2022-11-20 16:56:23,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:56:23,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:56:23,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:56:23,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:56:23,752 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:56:23,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-20 16:56:26,803 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:56:27,230 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:56:27,231 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-20 16:56:27,257 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data/c88430cfa/96738c43a83943988d85b36fb60ba522/FLAG3f0ee39c4 [2022-11-20 16:56:27,277 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb43bf0-b5d8-48e1-9ace-0150a037f522/bin/ukojak-pZX7IvK2PQ/data/c88430cfa/96738c43a83943988d85b36fb60ba522 [2022-11-20 16:56:27,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:56:27,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:56:27,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:56:27,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:56:27,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:56:27,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:56:27" (1/1) ... [2022-11-20 16:56:27,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ca794b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:56:27, skipping insertion in model container [2022-11-20 16:56:27,291 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:56:27" (1/1) ... [2022-11-20 16:56:27,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:56:27,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:56:27,694 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:56:27,957 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.TypeHandler.visit(TypeHandler.java:357) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-20 16:56:27,963 INFO L158 Benchmark]: Toolchain (without parser) took 680.24ms. Allocated memory is still 69.2MB. Free memory was 40.0MB in the beginning and 39.6MB in the end (delta: 394.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 16:56:27,963 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 52.4MB. Free memory is still 29.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:56:27,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 675.91ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 39.6MB in the end (delta: 241.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 16:56:27,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 52.4MB. Free memory is still 29.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 675.91ms. Allocated memory is still 69.2MB. Free memory was 39.8MB in the beginning and 39.6MB in the end (delta: 241.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.