./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_10_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --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 9beaaa6b44742f9b3f29579736e350f96344f86f201275a167689697e4d9e346 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:24:22,571 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:24:22,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:24:22,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:24:22,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:24:22,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:24:22,792 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:24:22,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:24:22,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:24:22,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:24:22,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:24:22,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:24:22,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:24:22,805 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:24:22,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:24:22,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:24:22,807 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:24:22,807 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:24:22,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:24:22,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:24:22,809 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:24:22,810 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:24:22,811 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:24:22,813 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:24:22,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:24:22,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:22,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:24:22,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:24:22,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:24:22,816 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:24:22,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:24:22,818 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:24:22,819 INFO L153 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_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9beaaa6b44742f9b3f29579736e350f96344f86f201275a167689697e4d9e346 [2023-11-23 20:24:23,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:24:23,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:24:23,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:24:23,169 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:24:23,169 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:24:23,171 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_10_bad.i [2023-11-23 20:24:26,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:24:27,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:24:27,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_10_bad.i [2023-11-23 20:24:27,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data/28fc839db/0d8996fe899d41bd92e49405db48089c/FLAGf10887a62 [2023-11-23 20:24:27,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data/28fc839db/0d8996fe899d41bd92e49405db48089c [2023-11-23 20:24:27,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:24:27,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:24:27,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:27,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:24:27,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:24:27,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:27" (1/1) ... [2023-11-23 20:24:27,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4685c4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:27, skipping insertion in model container [2023-11-23 20:24:27,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:27" (1/1) ... [2023-11-23 20:24:27,247 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:24:27,732 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:28,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:28,388 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:24:28,452 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:28,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:28,747 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:28,748 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:28,748 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:28,748 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:28,749 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:28,749 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:28,756 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:24:28,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28 WrapperNode [2023-11-23 20:24:28,756 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:28,757 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:28,758 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:24:28,758 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:24:28,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,822 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-23 20:24:28,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:28,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:24:28,824 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:24:28,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:24:28,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:24:28,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:24:28,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:24:28,857 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:24:28,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:28" (1/1) ... [2023-11-23 20:24:28,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:28,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:24:28,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:24:28,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:24:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:24:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:24:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:24:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:24:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:24:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:24:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:24:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:24:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:24:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:24:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:24:29,106 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:24:29,108 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:24:29,235 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:24:29,286 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:24:29,286 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:24:29,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:29 BoogieIcfgContainer [2023-11-23 20:24:29,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:24:29,289 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:24:29,289 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:24:29,300 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:24:29,301 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:29" (1/1) ... [2023-11-23 20:24:29,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:24:29,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:29,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-23 20:24:29,376 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-23 20:24:29,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:24:29,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:24:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 21 transitions. [2023-11-23 20:24:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-23 20:24:29,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:24:29,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:29,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:24:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:29,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:24:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:30,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:24:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:30,095 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:24:30,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:24:30 ImpRootNode [2023-11-23 20:24:30,140 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:24:30,141 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:24:30,141 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:24:30,141 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:24:30,142 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:29" (3/4) ... [2023-11-23 20:24:30,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:24:30,145 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:24:30,149 INFO L158 Benchmark]: Toolchain (without parser) took 2982.51ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 76.8MB in the beginning and 96.6MB in the end (delta: -19.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-23 20:24:30,149 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 125.8MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:30,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1591.46ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 76.8MB in the beginning and 78.8MB in the end (delta: -2.0MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2023-11-23 20:24:30,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.32ms. Allocated memory is still 151.0MB. Free memory was 78.8MB in the beginning and 75.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:24:30,153 INFO L158 Benchmark]: Boogie Preprocessor took 32.62ms. Allocated memory is still 151.0MB. Free memory was 75.7MB in the beginning and 74.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:24:30,154 INFO L158 Benchmark]: RCFGBuilder took 431.44ms. Allocated memory is still 151.0MB. Free memory was 74.6MB in the beginning and 60.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:24:30,159 INFO L158 Benchmark]: CodeCheck took 851.27ms. Allocated memory is still 151.0MB. Free memory was 60.0MB in the beginning and 97.7MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:30,159 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 151.0MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:30,163 INFO L338 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={12:31}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_sub_10_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(globalTrue) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(globalTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 125.8MB. Free memory was 72.3MB in the beginning and 72.2MB in the end (delta: 97.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1591.46ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 76.8MB in the beginning and 78.8MB in the end (delta: -2.0MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.32ms. Allocated memory is still 151.0MB. Free memory was 78.8MB in the beginning and 75.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.62ms. Allocated memory is still 151.0MB. Free memory was 75.7MB in the beginning and 74.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.44ms. Allocated memory is still 151.0MB. Free memory was 74.6MB in the beginning and 60.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 851.27ms. Allocated memory is still 151.0MB. Free memory was 60.0MB in the beginning and 97.7MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 151.0MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:24:30,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --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 9beaaa6b44742f9b3f29579736e350f96344f86f201275a167689697e4d9e346 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:24:32,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:24:33,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:24:33,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:24:33,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:24:33,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:24:33,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:24:33,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:24:33,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:24:33,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:24:33,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:24:33,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:24:33,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:24:33,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:24:33,059 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:24:33,060 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:24:33,060 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:24:33,061 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:24:33,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:24:33,064 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:24:33,064 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:24:33,065 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:24:33,066 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:24:33,066 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:24:33,067 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:24:33,067 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:24:33,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:24:33,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:33,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:24:33,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:24:33,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:24:33,070 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:24:33,070 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:24:33,071 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:24:33,071 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:24:33,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:24:33,071 INFO L153 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_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9beaaa6b44742f9b3f29579736e350f96344f86f201275a167689697e4d9e346 [2023-11-23 20:24:33,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:24:33,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:24:33,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:24:33,473 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:24:33,474 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:24:33,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_10_bad.i [2023-11-23 20:24:36,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:24:37,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:24:37,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_10_bad.i [2023-11-23 20:24:37,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data/2fc6383a2/a2850e1187644dacbdaac7427ad507eb/FLAG85ddb1067 [2023-11-23 20:24:37,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/data/2fc6383a2/a2850e1187644dacbdaac7427ad507eb [2023-11-23 20:24:37,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:24:37,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:24:37,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:37,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:24:37,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:24:37,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:37" (1/1) ... [2023-11-23 20:24:37,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc6ecd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:37, skipping insertion in model container [2023-11-23 20:24:37,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:24:37" (1/1) ... [2023-11-23 20:24:37,444 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:24:37,878 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:38,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:38,442 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:24:38,484 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:24:38,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:24:38,780 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:38,780 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:38,781 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:38,781 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:38,781 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:38,781 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:24:38,790 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:24:38,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38 WrapperNode [2023-11-23 20:24:38,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:24:38,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:38,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:24:38,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:24:38,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,873 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-11-23 20:24:38,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:24:38,874 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:24:38,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:24:38,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:24:38,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:24:38,913 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:24:38,913 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:24:38,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:24:38,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:24:38" (1/1) ... [2023-11-23 20:24:38,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:24:38,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:24:38,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:24:38,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:24:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:24:39,005 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:24:39,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:24:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:24:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:24:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:24:39,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:24:39,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:24:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:24:39,007 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:24:39,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:24:39,206 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:24:39,209 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:24:39,454 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:24:39,546 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:24:39,547 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:24:39,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:39 BoogieIcfgContainer [2023-11-23 20:24:39,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:24:39,550 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:24:39,551 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:24:39,561 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:24:39,562 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:39" (1/1) ... [2023-11-23 20:24:39,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:24:39,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:39,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-23 20:24:39,664 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-23 20:24:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:24:39,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:39,674 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:24:39,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:24:39,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:24:39,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:24:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:39,862 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:24:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:24:39,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:24:39,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:24:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:24:39,954 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:24:39,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:24:40,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:24:40,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-23 20:24:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-23 20:24:40,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:24:40,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:24:40,011 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:24:40,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:24:40,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:24:40,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:24:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:40,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:24:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:40,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:24:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:24:40,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-23 20:24:40,495 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:24:40,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:24:40 ImpRootNode [2023-11-23 20:24:40,545 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:24:40,545 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:24:40,546 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:24:40,546 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:24:40,546 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:24:39" (3/4) ... [2023-11-23 20:24:40,549 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:24:40,550 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:24:40,551 INFO L158 Benchmark]: Toolchain (without parser) took 3197.61ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 74.1MB in the beginning and 87.7MB in the end (delta: -13.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-23 20:24:40,552 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 62.9MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:40,553 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1435.18ms. Allocated memory is still 96.5MB. Free memory was 74.1MB in the beginning and 57.5MB in the end (delta: 16.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2023-11-23 20:24:40,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.63ms. Allocated memory is still 96.5MB. Free memory was 57.5MB in the beginning and 54.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:24:40,555 INFO L158 Benchmark]: Boogie Preprocessor took 38.25ms. Allocated memory is still 96.5MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:24:40,561 INFO L158 Benchmark]: RCFGBuilder took 635.85ms. Allocated memory is still 96.5MB. Free memory was 52.2MB in the beginning and 62.5MB in the end (delta: -10.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 20:24:40,562 INFO L158 Benchmark]: CodeCheck took 994.37ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 62.5MB in the beginning and 87.7MB in the end (delta: -25.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 20:24:40,563 INFO L158 Benchmark]: Witness Printer took 5.12ms. Allocated memory is still 119.5MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:24:40,573 INFO L338 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_sub_10_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(globalTrue) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(globalTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 62.9MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1435.18ms. Allocated memory is still 96.5MB. Free memory was 74.1MB in the beginning and 57.5MB in the end (delta: 16.6MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.63ms. Allocated memory is still 96.5MB. Free memory was 57.5MB in the beginning and 54.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.25ms. Allocated memory is still 96.5MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 635.85ms. Allocated memory is still 96.5MB. Free memory was 52.2MB in the beginning and 62.5MB in the end (delta: -10.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 994.37ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 62.5MB in the beginning and 87.7MB in the end (delta: -25.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 5.12ms. Allocated memory is still 119.5MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:24:40,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_365d19bc-7c99-4da4-a5c5-8aaa6e199910/bin/ukojak-verify-1t5iHCbJaC/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: UNKNOWN: Overapproximated counterexample