./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL --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 5137f016fed61787eb11067a9e12ad08c1daf02beb358bf1108b62ffafc24ad0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:03:06,725 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:03:06,841 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 04:03:06,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:03:06,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:03:06,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:03:06,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:03:06,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:03:06,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:03:06,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:03:06,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:03:06,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:03:06,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:03:06,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:03:06,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:03:06,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:03:06,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:03:06,906 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:03:06,907 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:03:06,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:03:06,908 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:03:06,908 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:03:06,909 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:03:06,909 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:03:06,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:03:06,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:06,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:03:06,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:03:06,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:03:06,912 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:03:06,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:03:06,914 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:03:06,914 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_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5137f016fed61787eb11067a9e12ad08c1daf02beb358bf1108b62ffafc24ad0 [2023-11-19 04:03:07,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:03:07,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:03:07,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:03:07,259 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:03:07,259 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:03:07,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_bad.i [2023-11-19 04:03:10,376 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:03:10,882 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:03:10,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_bad.i [2023-11-19 04:03:10,911 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data/4e191629b/1be531669c1a43f5945b714f0c71859b/FLAGcf49884dc [2023-11-19 04:03:10,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data/4e191629b/1be531669c1a43f5945b714f0c71859b [2023-11-19 04:03:10,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:03:10,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:03:10,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:10,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:03:10,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:03:10,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:10" (1/1) ... [2023-11-19 04:03:10,946 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a17c421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:10, skipping insertion in model container [2023-11-19 04:03:10,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:10" (1/1) ... [2023-11-19 04:03:11,024 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:03:11,407 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:11,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:12,007 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:03:12,029 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:12,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:12,298 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:12,298 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:12,298 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:12,298 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:12,299 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:12,299 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:12,307 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:03:12,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12 WrapperNode [2023-11-19 04:03:12,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:12,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:12,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:03:12,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:03:12,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,409 INFO L138 Inliner]: procedures = 500, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-11-19 04:03:12,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:12,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:03:12,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:03:12,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:03:12,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,440 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,451 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:03:12,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:03:12,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:03:12,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:03:12,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:12,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:03:12,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:03:12,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:03:12,561 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:03:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:03:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:03:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2023-11-19 04:03:12,562 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2023-11-19 04:03:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:03:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:03:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:03:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:03:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:03:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:03:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:03:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:03:12,727 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:03:12,729 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:03:12,864 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:03:12,902 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:03:12,902 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:03:12,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:12 BoogieIcfgContainer [2023-11-19 04:03:12,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:03:12,908 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:03:12,908 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:03:12,920 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:03:12,920 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:12" (1/1) ... [2023-11-19 04:03:12,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:03:12,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:12,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2023-11-19 04:03:12,992 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-11-19 04:03:12,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:03:12,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:12,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:03:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:03:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 04:03:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-11-19 04:03:13,526 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-19 04:03:13,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:03:13,546 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:13,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:03:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:13,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:13,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:13,749 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 04:03:13,785 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-11-19 04:03:13,787 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret101 could not be translated [2023-11-19 04:03:13,788 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated [2023-11-19 04:03:13,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:03:13 ImpRootNode [2023-11-19 04:03:13,793 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:03:13,794 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:03:13,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:03:13,795 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:03:13,795 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:12" (3/4) ... [2023-11-19 04:03:13,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:03:13,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:03:13,800 INFO L158 Benchmark]: Toolchain (without parser) took 2869.07ms. Allocated memory is still 146.8MB. Free memory was 99.1MB in the beginning and 103.2MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:13,801 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 146.8MB. Free memory was 120.8MB in the beginning and 120.6MB in the end (delta: 251.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:13,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1375.10ms. Allocated memory is still 146.8MB. Free memory was 99.1MB in the beginning and 93.8MB in the end (delta: 5.3MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2023-11-19 04:03:13,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.01ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 90.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:13,803 INFO L158 Benchmark]: Boogie Preprocessor took 45.49ms. Allocated memory is still 146.8MB. Free memory was 90.8MB in the beginning and 88.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:13,804 INFO L158 Benchmark]: RCFGBuilder took 450.25ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 73.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:03:13,804 INFO L158 Benchmark]: CodeCheck took 885.38ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 103.2MB in the end (delta: -29.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:13,805 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 146.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:13,809 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 20 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, 20 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 101 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:19}, argv={13:19}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_11_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1566] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1569] data-- 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 0.35ms. Allocated memory is still 146.8MB. Free memory was 120.8MB in the beginning and 120.6MB in the end (delta: 251.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1375.10ms. Allocated memory is still 146.8MB. Free memory was 99.1MB in the beginning and 93.8MB in the end (delta: 5.3MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.01ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 90.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.49ms. Allocated memory is still 146.8MB. Free memory was 90.8MB in the beginning and 88.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 450.25ms. Allocated memory is still 146.8MB. Free memory was 88.9MB in the beginning and 73.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 885.38ms. Allocated memory is still 146.8MB. Free memory was 73.5MB in the beginning and 103.2MB in the end (delta: -29.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 146.8MB. Free memory is still 103.2MB. 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 Unfinished Backtranslation: IdentifierExpression #t~post102 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 [2023-11-19 04:03:13,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/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_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL --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 5137f016fed61787eb11067a9e12ad08c1daf02beb358bf1108b62ffafc24ad0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:03:16,608 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:03:16,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 04:03:16,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:03:16,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:03:16,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:03:16,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:03:16,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:03:16,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:03:16,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:03:16,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:03:16,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:03:16,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:03:16,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:03:16,763 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:03:16,764 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:03:16,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:03:16,765 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:03:16,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:03:16,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:03:16,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:03:16,768 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:03:16,769 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:03:16,770 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:03:16,770 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:03:16,771 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:03:16,772 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:03:16,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:16,773 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:03:16,773 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:03:16,774 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:03:16,774 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:03:16,775 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:03:16,776 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:03:16,776 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:03:16,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:03:16,777 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_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5137f016fed61787eb11067a9e12ad08c1daf02beb358bf1108b62ffafc24ad0 [2023-11-19 04:03:17,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:03:17,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:03:17,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:03:17,278 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:03:17,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:03:17,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_bad.i [2023-11-19 04:03:20,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:03:21,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:03:21,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_11_bad.i [2023-11-19 04:03:21,329 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data/221df0371/8704f664749846a1bde29b78e1b756e9/FLAGa8172610a [2023-11-19 04:03:21,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/data/221df0371/8704f664749846a1bde29b78e1b756e9 [2023-11-19 04:03:21,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:03:21,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:03:21,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:21,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:03:21,368 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:03:21,369 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:21" (1/1) ... [2023-11-19 04:03:21,370 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196e57ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:21, skipping insertion in model container [2023-11-19 04:03:21,370 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:03:21" (1/1) ... [2023-11-19 04:03:21,454 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:03:22,001 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:22,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:22,678 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:03:22,697 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:03:22,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:03:22,940 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:22,940 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:22,941 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:22,941 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:22,941 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:22,941 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:03:22,949 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:03:22,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22 WrapperNode [2023-11-19 04:03:22,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:03:22,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:22,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:03:22,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:03:22,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,033 INFO L138 Inliner]: procedures = 505, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-11-19 04:03:23,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:03:23,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:03:23,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:03:23,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:03:23,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,085 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,087 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:03:23,093 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:03:23,093 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:03:23,093 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:03:23,094 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:03:22" (1/1) ... [2023-11-19 04:03:23,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:03:23,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:03:23,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:03:23,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:03:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 04:03:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:03:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:03:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2023-11-19 04:03:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2023-11-19 04:03:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:03:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:03:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:03:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:03:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:03:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:03:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:03:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 04:03:23,349 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:03:23,352 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:03:23,532 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:03:23,590 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:03:23,590 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:03:23,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:23 BoogieIcfgContainer [2023-11-19 04:03:23,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:03:23,595 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:03:23,596 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:03:23,606 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:03:23,606 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:23" (1/1) ... [2023-11-19 04:03:23,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:03:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2023-11-19 04:03:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-19 04:03:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:03:23,681 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:23,681 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:03:23,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:03:23,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:03:23,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:03:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:03:23,827 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:03:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:03:23,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:03:23,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:03:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:03:23,931 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:03:23,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:03:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:03:24,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 22 states and 26 transitions. [2023-11-19 04:03:24,049 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-11-19 04:03:24,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:03:24,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:03:24,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:03:24,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:03:24,053 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:03:24,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 04:03:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:24,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:24,463 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:03:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:03:24,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:03:24,562 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 04:03:24,599 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-11-19 04:03:24,600 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret99 could not be translated [2023-11-19 04:03:24,601 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-19 04:03:24,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:03:24 ImpRootNode [2023-11-19 04:03:24,607 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:03:24,607 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:03:24,608 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:03:24,608 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:03:24,608 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:03:23" (3/4) ... [2023-11-19 04:03:24,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:03:24,612 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:03:24,613 INFO L158 Benchmark]: Toolchain (without parser) took 3253.99ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 56.9MB in the beginning and 78.9MB in the end (delta: -22.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-19 04:03:24,614 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 59.4MB in the end (delta: 148.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:24,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1588.50ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 56.7MB in the beginning and 64.0MB in the end (delta: -7.2MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:24,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.13ms. Allocated memory is still 113.2MB. Free memory was 64.0MB in the beginning and 60.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:03:24,616 INFO L158 Benchmark]: Boogie Preprocessor took 57.32ms. Allocated memory is still 113.2MB. Free memory was 60.8MB in the beginning and 58.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:03:24,617 INFO L158 Benchmark]: RCFGBuilder took 501.71ms. Allocated memory is still 113.2MB. Free memory was 58.7MB in the beginning and 73.8MB in the end (delta: -15.1MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-19 04:03:24,617 INFO L158 Benchmark]: CodeCheck took 1011.27ms. Allocated memory is still 113.2MB. Free memory was 73.8MB in the beginning and 79.6MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:24,618 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 113.2MB. Free memory was 79.6MB in the beginning and 78.9MB in the end (delta: 706.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:03:24,621 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 3 procedures, 22 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, 31 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 19 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, 19 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 98 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, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 55 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] 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) [L1578] 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}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_11_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1552] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; [L1566] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1569] data-- 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 0.77ms. Allocated memory is still 83.9MB. Free memory was 59.6MB in the beginning and 59.4MB in the end (delta: 148.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1588.50ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 56.7MB in the beginning and 64.0MB in the end (delta: -7.2MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.13ms. Allocated memory is still 113.2MB. Free memory was 64.0MB in the beginning and 60.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.32ms. Allocated memory is still 113.2MB. Free memory was 60.8MB in the beginning and 58.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.71ms. Allocated memory is still 113.2MB. Free memory was 58.7MB in the beginning and 73.8MB in the end (delta: -15.1MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * CodeCheck took 1011.27ms. Allocated memory is still 113.2MB. Free memory was 73.8MB in the beginning and 79.6MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 113.2MB. Free memory was 79.6MB in the beginning and 78.9MB in the end (delta: 706.0kB). 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 Unfinished Backtranslation: IdentifierExpression #t~post100 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 [2023-11-19 04:03:24,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_babe2b9b-b572-4e38-8a55-cdef80e570d7/bin/ukojak-verify-G8NBE6pJGL/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