./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_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_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/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_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/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_8a4cae77-1cd3-41d6-a278-169494915bf8/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 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 19:55:50,256 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 19:55:50,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 19:55:50,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 19:55:50,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 19:55:50,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 19:55:50,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 19:55:50,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 19:55:50,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 19:55:50,456 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 19:55:50,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 19:55:50,458 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 19:55:50,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 19:55:50,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 19:55:50,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 19:55:50,462 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 19:55:50,462 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 19:55:50,463 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 19:55:50,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 19:55:50,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 19:55:50,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 19:55:50,465 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 19:55:50,466 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 19:55:50,468 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 19:55:50,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 19:55:50,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:55:50,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 19:55:50,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 19:55:50,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 19:55:50,471 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 19:55:50,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 19:55:50,473 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 19:55:50,473 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_8a4cae77-1cd3-41d6-a278-169494915bf8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b [2023-11-23 19:55:50,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 19:55:50,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 19:55:50,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 19:55:50,877 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 19:55:50,877 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 19:55:50,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2023-11-23 19:55:54,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 19:55:55,191 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 19:55:55,192 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2023-11-23 19:55:55,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data/c282f72e3/a06f42284c1346898ee9b17edf0ec822/FLAG7868a9f70 [2023-11-23 19:55:55,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data/c282f72e3/a06f42284c1346898ee9b17edf0ec822 [2023-11-23 19:55:55,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 19:55:55,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 19:55:55,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 19:55:55,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 19:55:55,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 19:55:55,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:55:55" (1/1) ... [2023-11-23 19:55:55,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae68fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:55, skipping insertion in model container [2023-11-23 19:55:55,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:55:55" (1/1) ... [2023-11-23 19:55:55,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 19:55:55,852 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 19:55:56,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:55:56,661 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 19:55:56,702 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 19:55:56,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:55:57,111 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:57,112 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:57,112 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:57,112 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:57,113 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:57,113 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:55:57,123 INFO L206 MainTranslator]: Completed translation [2023-11-23 19:55:57,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57 WrapperNode [2023-11-23 19:55:57,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 19:55:57,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 19:55:57,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 19:55:57,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 19:55:57,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,212 INFO L138 Inliner]: procedures = 502, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-11-23 19:55:57,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 19:55:57,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 19:55:57,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 19:55:57,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 19:55:57,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,239 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,248 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 19:55:57,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 19:55:57,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 19:55:57,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 19:55:57,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:55:57,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 19:55:57,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 19:55:57,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 19:55:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 19:55:57,356 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 19:55:57,357 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 19:55:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 19:55:57,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 19:55:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 19:55:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 19:55:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 19:55:57,358 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-11-23 19:55:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-11-23 19:55:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 19:55:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 19:55:57,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 19:55:57,579 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 19:55:57,582 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 19:55:57,837 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 19:55:57,921 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 19:55:57,929 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 19:55:57,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:55:57 BoogieIcfgContainer [2023-11-23 19:55:57,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 19:55:57,933 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 19:55:57,935 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 19:55:57,948 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 19:55:57,948 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:55:57" (1/1) ... [2023-11-23 19:55:57,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 19:55:58,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:58,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2023-11-23 19:55:58,061 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2023-11-23 19:55:58,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 19:55:58,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:58,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:55:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 19:55:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:55:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2023-11-23 19:55:58,672 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-11-23 19:55:58,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 19:55:58,673 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:55:58,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 19:55:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:55:58,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 19:55:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:55:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:55:58,841 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 19:55:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:55:58,884 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 19:55:58,922 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-11-23 19:55:58,930 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret101 could not be translated [2023-11-23 19:55:58,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 07:55:58 ImpRootNode [2023-11-23 19:55:58,941 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 19:55:58,942 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 19:55:58,942 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 19:55:58,942 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 19:55:58,943 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:55:57" (3/4) ... [2023-11-23 19:55:58,946 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 19:55:58,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 19:55:58,949 INFO L158 Benchmark]: Toolchain (without parser) took 3700.02ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 90.6MB in the beginning and 73.4MB in the end (delta: 17.2MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2023-11-23 19:55:58,950 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 140.5MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:55:58,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1874.36ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 90.1MB in the beginning and 126.8MB in the end (delta: -36.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2023-11-23 19:55:58,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.73ms. Allocated memory is still 192.9MB. Free memory was 126.8MB in the beginning and 123.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 19:55:58,965 INFO L158 Benchmark]: Boogie Preprocessor took 45.37ms. Allocated memory is still 192.9MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 19:55:58,966 INFO L158 Benchmark]: RCFGBuilder took 673.08ms. Allocated memory is still 192.9MB. Free memory was 121.6MB in the beginning and 105.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 19:55:58,967 INFO L158 Benchmark]: CodeCheck took 1007.60ms. Allocated memory is still 192.9MB. Free memory was 105.9MB in the beginning and 73.4MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 19:55:58,968 INFO L158 Benchmark]: Witness Printer took 5.99ms. Allocated memory is still 192.9MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:55:58,972 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 3 procedures, 25 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, 38 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 22 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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); [L1586] 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) [L1586] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={18:30}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() 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] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] EXPR data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562-L1572] { 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=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1574] RET staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] COND TRUE staticReturnsTrue() [L1576] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, 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 0.48ms. Allocated memory is still 140.5MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1874.36ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 90.1MB in the beginning and 126.8MB in the end (delta: -36.7MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.73ms. Allocated memory is still 192.9MB. Free memory was 126.8MB in the beginning and 123.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.37ms. Allocated memory is still 192.9MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 673.08ms. Allocated memory is still 192.9MB. Free memory was 121.6MB in the beginning and 105.9MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1007.60ms. Allocated memory is still 192.9MB. Free memory was 105.9MB in the beginning and 73.4MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.99ms. Allocated memory is still 192.9MB. Free memory is still 73.4MB. 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~ret98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret101 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 19:55:59,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/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_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/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_8a4cae77-1cd3-41d6-a278-169494915bf8/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 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 19:56:02,256 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 19:56:02,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 19:56:02,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 19:56:02,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 19:56:02,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 19:56:02,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 19:56:02,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 19:56:02,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 19:56:02,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 19:56:02,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 19:56:02,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 19:56:02,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 19:56:02,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 19:56:02,488 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 19:56:02,489 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 19:56:02,489 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 19:56:02,490 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 19:56:02,490 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 19:56:02,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 19:56:02,492 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 19:56:02,493 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 19:56:02,494 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 19:56:02,495 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 19:56:02,495 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 19:56:02,496 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 19:56:02,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 19:56:02,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:56:02,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 19:56:02,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 19:56:02,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 19:56:02,500 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 19:56:02,500 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 19:56:02,500 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 19:56:02,501 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 19:56:02,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 19:56:02,501 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_8a4cae77-1cd3-41d6-a278-169494915bf8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b [2023-11-23 19:56:02,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 19:56:03,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 19:56:03,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 19:56:03,040 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 19:56:03,041 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 19:56:03,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2023-11-23 19:56:06,388 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 19:56:06,901 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 19:56:06,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2023-11-23 19:56:06,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data/2344b146e/2cde270cbba44ea8ab6bc60bc6cf7a23/FLAG8b25d4b8c [2023-11-23 19:56:06,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/data/2344b146e/2cde270cbba44ea8ab6bc60bc6cf7a23 [2023-11-23 19:56:06,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 19:56:06,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 19:56:06,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 19:56:06,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 19:56:06,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 19:56:06,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:56:06" (1/1) ... [2023-11-23 19:56:06,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535010f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:06, skipping insertion in model container [2023-11-23 19:56:06,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:56:06" (1/1) ... [2023-11-23 19:56:07,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 19:56:07,684 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 19:56:08,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:56:08,573 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 19:56:08,612 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 19:56:08,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 19:56:08,866 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:56:08,866 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:56:08,867 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:56:08,867 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:56:08,867 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:56:08,867 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 19:56:08,875 INFO L206 MainTranslator]: Completed translation [2023-11-23 19:56:08,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08 WrapperNode [2023-11-23 19:56:08,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 19:56:08,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 19:56:08,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 19:56:08,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 19:56:08,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:08,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:08,983 INFO L138 Inliner]: procedures = 507, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-11-23 19:56:08,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 19:56:08,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 19:56:08,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 19:56:08,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 19:56:08,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:08,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,026 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 19:56:09,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 19:56:09,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 19:56:09,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 19:56:09,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:56:08" (1/1) ... [2023-11-23 19:56:09,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 19:56:09,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 19:56:09,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 19:56:09,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 19:56:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 19:56:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 19:56:09,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 19:56:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 19:56:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 19:56:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 19:56:09,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 19:56:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 19:56:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-11-23 19:56:09,145 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-11-23 19:56:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 19:56:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 19:56:09,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 19:56:09,368 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 19:56:09,371 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 19:56:09,647 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 19:56:09,774 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 19:56:09,780 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 19:56:09,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:56:09 BoogieIcfgContainer [2023-11-23 19:56:09,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 19:56:09,784 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 19:56:09,786 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 19:56:09,799 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 19:56:09,799 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:56:09" (1/1) ... [2023-11-23 19:56:09,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 19:56:09,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:56:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-23 19:56:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-23 19:56:09,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 19:56:09,918 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:56:09,919 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:56:09,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:56:09,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:56:09,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 19:56:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:56:10,152 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 19:56:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 19:56:10,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 19:56:10,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 19:56:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 19:56:10,298 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 19:56:10,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 19:56:10,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 19:56:10,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2023-11-23 19:56:10,394 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-23 19:56:10,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 19:56:10,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 19:56:10,396 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 19:56:10,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 19:56:10,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 19:56:10,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 19:56:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:56:10,584 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 19:56:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:56:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:56:10,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 19:56:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 19:56:10,877 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 19:56:10,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 19:56:10,884 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 19:56:10,928 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-11-23 19:56:10,931 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret99 could not be translated [2023-11-23 19:56:10,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 07:56:10 ImpRootNode [2023-11-23 19:56:10,939 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 19:56:10,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 19:56:10,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 19:56:10,941 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 19:56:10,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:56:09" (3/4) ... [2023-11-23 19:56:10,944 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 19:56:10,945 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 19:56:10,946 INFO L158 Benchmark]: Toolchain (without parser) took 3981.84ms. Allocated memory is still 113.2MB. Free memory was 85.8MB in the beginning and 53.3MB in the end (delta: 32.6MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-11-23 19:56:10,947 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 79.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:56:10,948 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1908.17ms. Allocated memory is still 113.2MB. Free memory was 85.6MB in the beginning and 75.1MB in the end (delta: 10.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-11-23 19:56:10,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.44ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 71.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 19:56:10,950 INFO L158 Benchmark]: Boogie Preprocessor took 67.80ms. Allocated memory is still 113.2MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 19:56:10,958 INFO L158 Benchmark]: RCFGBuilder took 729.06ms. Allocated memory is still 113.2MB. Free memory was 69.8MB in the beginning and 84.1MB in the end (delta: -14.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2023-11-23 19:56:10,959 INFO L158 Benchmark]: CodeCheck took 1155.38ms. Allocated memory is still 113.2MB. Free memory was 84.1MB in the beginning and 53.3MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-23 19:56:10,959 INFO L158 Benchmark]: Witness Printer took 4.68ms. Allocated memory is still 113.2MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 19:56:10,968 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 3 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 21 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 4 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, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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); [L1586] 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) [L1586] 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] [L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() 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] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] EXPR data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562-L1572] { 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] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1574] RET staticReturnsTrue() 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] [L1574] COND TRUE staticReturnsTrue() [L1576] COND TRUE data < 0 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] [L1578] data * 2 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 0.84ms. Allocated memory is still 79.7MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1908.17ms. Allocated memory is still 113.2MB. Free memory was 85.6MB in the beginning and 75.1MB in the end (delta: 10.5MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.44ms. Allocated memory is still 113.2MB. Free memory was 75.1MB in the beginning and 71.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.80ms. Allocated memory is still 113.2MB. Free memory was 71.9MB in the beginning and 69.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 729.06ms. Allocated memory is still 113.2MB. Free memory was 69.8MB in the beginning and 84.1MB in the end (delta: -14.3MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * CodeCheck took 1155.38ms. Allocated memory is still 113.2MB. Free memory was 84.1MB in the beginning and 53.3MB in the end (delta: 30.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.68ms. Allocated memory is still 113.2MB. Free memory is still 53.3MB. 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~ret96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret99 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 19:56:11,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a4cae77-1cd3-41d6-a278-169494915bf8/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