./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/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_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/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_f47b24b3-612b-4908-a41f-987e8807d738/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 7daf5f93fb423548f74816741fd44894a1bb8a4405cb2d0f5b1bdce1d257fd36 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:19:19,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:19:19,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:19:19,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:19:19,471 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:19:19,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:19:19,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:19:19,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:19:19,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:19:19,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:19:19,534 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:19:19,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:19:19,535 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:19:19,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:19:19,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:19:19,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:19:19,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:19:19,539 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:19:19,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:19:19,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:19:19,540 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:19:19,541 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:19:19,542 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:19:19,542 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:19:19,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:19:19,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:19,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:19:19,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:19:19,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:19:19,547 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:19:19,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:19:19,549 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:19:19,549 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_f47b24b3-612b-4908-a41f-987e8807d738/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7daf5f93fb423548f74816741fd44894a1bb8a4405cb2d0f5b1bdce1d257fd36 [2023-11-23 20:19:19,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:19:19,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:19:19,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:19:19,948 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:19:19,948 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:19:19,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_61_bad.i [2023-11-23 20:19:23,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:19:23,540 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:19:23,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_61_bad.i [2023-11-23 20:19:23,565 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data/8b5d56cd2/da819b8cf28a42dfaf706d64fc1bf9f5/FLAGdc7a2d7fb [2023-11-23 20:19:23,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data/8b5d56cd2/da819b8cf28a42dfaf706d64fc1bf9f5 [2023-11-23 20:19:23,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:19:23,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:19:23,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:23,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:19:23,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:19:23,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:23" (1/1) ... [2023-11-23 20:19:23,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1710403d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:23, skipping insertion in model container [2023-11-23 20:19:23,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:23" (1/1) ... [2023-11-23 20:19:23,675 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:19:24,142 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:24,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:24,770 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:19:24,809 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:24,887 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:25,133 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:25,134 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:25,134 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:25,134 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:25,135 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:25,135 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:25,144 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:19:25,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25 WrapperNode [2023-11-23 20:19:25,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:25,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:25,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:19:25,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:19:25,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,234 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-11-23 20:19:25,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:25,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:19:25,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:19:25,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:19:25,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:19:25,287 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:19:25,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:19:25,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:19:25,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:25,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:19:25,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:19:25,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:19:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:19:25,383 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:19:25,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:19:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:19:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:19:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:19:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:19:25,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:19:25,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:19:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:19:25,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:19:25,578 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:19:25,581 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:19:25,763 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:19:25,814 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:19:25,815 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:19:25,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:25 BoogieIcfgContainer [2023-11-23 20:19:25,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:19:25,818 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:19:25,818 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:19:25,835 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:19:25,836 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:25" (1/1) ... [2023-11-23 20:19:25,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:19:25,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:25,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:19:25,898 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:19:25,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:19:25,903 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:25,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:26,297 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 20:19:26,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:26,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-23 20:19:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-23 20:19:26,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:19:26,339 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:26,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:26,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:26,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:26,548 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:19:26,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated [2023-11-23 20:19:26,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:19:26 ImpRootNode [2023-11-23 20:19:26,601 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:19:26,602 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:19:26,603 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:19:26,603 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:19:26,603 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:25" (3/4) ... [2023-11-23 20:19:26,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:19:26,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:19:26,607 INFO L158 Benchmark]: Toolchain (without parser) took 3015.40ms. Allocated memory was 159.4MB in the beginning and 211.8MB in the end (delta: 52.4MB). Free memory was 108.1MB in the beginning and 103.8MB in the end (delta: 4.3MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2023-11-23 20:19:26,608 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 159.4MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:26,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1549.30ms. Allocated memory was 159.4MB in the beginning and 211.8MB in the end (delta: 52.4MB). Free memory was 108.1MB in the beginning and 155.1MB in the end (delta: -47.1MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. [2023-11-23 20:19:26,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.50ms. Allocated memory is still 211.8MB. Free memory was 155.1MB in the beginning and 152.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:19:26,610 INFO L158 Benchmark]: Boogie Preprocessor took 49.32ms. Allocated memory is still 211.8MB. Free memory was 152.0MB in the beginning and 150.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:19:26,611 INFO L158 Benchmark]: RCFGBuilder took 529.69ms. Allocated memory is still 211.8MB. Free memory was 150.9MB in the beginning and 135.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:19:26,611 INFO L158 Benchmark]: CodeCheck took 783.69ms. Allocated memory is still 211.8MB. Free memory was 135.2MB in the beginning and 104.5MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 20:19:26,612 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 211.8MB. Free memory was 104.5MB in the beginning and 103.8MB in the end (delta: 727.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:26,621 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 51 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574. 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); [L1563] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=28, argc=28, argv={29:27}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_postinc_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] EXPR data = atoi(inputBuffer) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1570-L1580] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1581] return data; [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_postinc_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_postinc_61b_badSource(data) [L1555] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, 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 0.33ms. Allocated memory is still 159.4MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1549.30ms. Allocated memory was 159.4MB in the beginning and 211.8MB in the end (delta: 52.4MB). Free memory was 108.1MB in the beginning and 155.1MB in the end (delta: -47.1MB). Peak memory consumption was 60.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.50ms. Allocated memory is still 211.8MB. Free memory was 155.1MB in the beginning and 152.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.32ms. Allocated memory is still 211.8MB. Free memory was 152.0MB in the beginning and 150.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.69ms. Allocated memory is still 211.8MB. Free memory was 150.9MB in the beginning and 135.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 783.69ms. Allocated memory is still 211.8MB. Free memory was 135.2MB in the beginning and 104.5MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 211.8MB. Free memory was 104.5MB in the beginning and 103.8MB in the end (delta: 727.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:19:26,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/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 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_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/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_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/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_f47b24b3-612b-4908-a41f-987e8807d738/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 7daf5f93fb423548f74816741fd44894a1bb8a4405cb2d0f5b1bdce1d257fd36 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:19:29,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:19:29,654 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:19:29,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:19:29,708 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:19:29,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:19:29,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:19:29,711 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:19:29,712 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:19:29,717 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:19:29,718 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:19:29,718 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:19:29,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:19:29,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:19:29,721 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:19:29,721 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:19:29,722 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:19:29,722 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:19:29,723 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:19:29,724 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:19:29,724 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:19:29,726 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:19:29,726 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:19:29,727 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:19:29,727 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:19:29,727 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:19:29,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:19:29,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:29,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:19:29,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:19:29,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:19:29,731 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:19:29,731 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:19:29,732 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:19:29,732 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:19:29,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:19:29,733 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_f47b24b3-612b-4908-a41f-987e8807d738/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7daf5f93fb423548f74816741fd44894a1bb8a4405cb2d0f5b1bdce1d257fd36 [2023-11-23 20:19:30,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:19:30,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:19:30,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:19:30,252 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:19:30,253 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:19:30,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_61_bad.i [2023-11-23 20:19:33,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:19:34,155 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:19:34,158 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_61_bad.i [2023-11-23 20:19:34,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data/470a9316f/b48d9217ad814ef8ae344a75ab20f5e0/FLAG92782672f [2023-11-23 20:19:34,213 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/data/470a9316f/b48d9217ad814ef8ae344a75ab20f5e0 [2023-11-23 20:19:34,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:19:34,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:19:34,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:34,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:19:34,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:19:34,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:34" (1/1) ... [2023-11-23 20:19:34,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de0bf2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:34, skipping insertion in model container [2023-11-23 20:19:34,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:34" (1/1) ... [2023-11-23 20:19:34,312 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:19:34,778 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:35,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:35,424 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:19:35,445 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:35,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:35,742 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:35,742 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:35,742 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:35,743 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:35,743 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:35,743 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:35,751 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:19:35,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35 WrapperNode [2023-11-23 20:19:35,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:35,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:35,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:19:35,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:19:35,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,848 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-23 20:19:35,849 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:35,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:19:35,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:19:35,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:19:35,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,876 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:19:35,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:19:35,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:19:35,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:19:35,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:35" (1/1) ... [2023-11-23 20:19:35,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:35,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:19:35,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:19:35,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:19:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:19:35,969 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:19:35,969 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:19:35,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:19:35,970 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:19:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:19:36,140 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:19:36,143 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:19:36,287 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:19:36,354 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:19:36,354 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:19:36,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:36 BoogieIcfgContainer [2023-11-23 20:19:36,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:19:36,357 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:19:36,357 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:19:36,368 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:19:36,369 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:36" (1/1) ... [2023-11-23 20:19:36,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:19:36,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:19:36,456 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:19:36,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:19:36,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:36,466 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:19:36,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:19:36,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:19:36,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:19:36,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:36,660 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:19:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:19:36,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:19:36,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:19:36,748 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 20:19:36,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:19:36,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:36,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-23 20:19:36,789 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-23 20:19:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:19:36,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:36,791 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:19:36,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:19:36,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:19:36,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:19:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:36,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:37,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:37,201 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:37,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:37,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:19:37,299 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:19:37,328 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated [2023-11-23 20:19:37,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:19:37 ImpRootNode [2023-11-23 20:19:37,333 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:19:37,334 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:19:37,334 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:19:37,335 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:19:37,335 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:36" (3/4) ... [2023-11-23 20:19:37,338 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:19:37,339 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:19:37,340 INFO L158 Benchmark]: Toolchain (without parser) took 3122.94ms. Allocated memory is still 104.9MB. Free memory was 77.3MB in the beginning and 56.5MB in the end (delta: 20.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2023-11-23 20:19:37,340 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 60.8MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:37,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1534.87ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 73.2MB in the end (delta: 3.8MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2023-11-23 20:19:37,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.10ms. Allocated memory is still 104.9MB. Free memory was 73.2MB in the beginning and 70.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:19:37,342 INFO L158 Benchmark]: Boogie Preprocessor took 37.54ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 68.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:19:37,343 INFO L158 Benchmark]: RCFGBuilder took 468.55ms. Allocated memory is still 104.9MB. Free memory was 68.3MB in the beginning and 50.7MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:19:37,344 INFO L158 Benchmark]: CodeCheck took 976.23ms. Allocated memory is still 104.9MB. Free memory was 50.7MB in the beginning and 57.1MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:37,344 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 104.9MB. Free memory was 57.1MB in the beginning and 56.5MB in the end (delta: 630.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:37,348 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, 15 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, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 1 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574. 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); [L1563] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_postinc_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] EXPR data = atoi(inputBuffer) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1570-L1580] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1581] return data; [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_postinc_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_postinc_61b_badSource(data) [L1555] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, 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 0.69ms. Allocated memory is still 60.8MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1534.87ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 73.2MB in the end (delta: 3.8MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.10ms. Allocated memory is still 104.9MB. Free memory was 73.2MB in the beginning and 70.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.54ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 68.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.55ms. Allocated memory is still 104.9MB. Free memory was 68.3MB in the beginning and 50.7MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 976.23ms. Allocated memory is still 104.9MB. Free memory was 50.7MB in the beginning and 57.1MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 104.9MB. Free memory was 57.1MB in the beginning and 56.5MB in the end (delta: 630.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post97 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:19:37,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f47b24b3-612b-4908-a41f-987e8807d738/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