./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2 --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 bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:41:04,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:41:04,655 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:41:04,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:41:04,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:41:04,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:41:04,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:41:04,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:41:04,697 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:41:04,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:41:04,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:41:04,699 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:41:04,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:41:04,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:41:04,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:41:04,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:41:04,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:41:04,704 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:41:04,704 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:41:04,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:41:04,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:41:04,707 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:41:04,708 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:41:04,708 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:41:04,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:41:04,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:41:04,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:41:04,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:41:04,712 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:41:04,713 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:41:04,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:41:04,714 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:41:04,715 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_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 [2023-11-21 18:41:05,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:41:05,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:41:05,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:41:05,073 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:41:05,074 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:41:05,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2023-11-21 18:41:08,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:41:09,029 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:41:09,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2023-11-21 18:41:09,074 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data/995ec0a9f/2b5b7f14505741c3af5c46be9d435995/FLAGeabc04a8c [2023-11-21 18:41:09,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data/995ec0a9f/2b5b7f14505741c3af5c46be9d435995 [2023-11-21 18:41:09,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:41:09,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:41:09,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:09,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:41:09,106 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:41:09,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:09" (1/1) ... [2023-11-21 18:41:09,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3340ca6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:09, skipping insertion in model container [2023-11-21 18:41:09,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:09" (1/1) ... [2023-11-21 18:41:09,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:41:09,711 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:41:10,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:10,635 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:41:10,673 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:41:10,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:10,974 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:10,975 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:10,975 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:10,975 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:10,975 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:10,976 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:10,986 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:41:10,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10 WrapperNode [2023-11-21 18:41:10,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:10,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:10,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:41:10,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:41:11,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,125 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2023-11-21 18:41:11,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:11,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:41:11,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:41:11,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:41:11,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,169 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:41:11,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:41:11,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:41:11,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:41:11,200 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:10" (1/1) ... [2023-11-21 18:41:11,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:41:11,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:41:11,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:41:11,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:41:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:41:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:41:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:41:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:41:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:41:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:41:11,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:41:11,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:41:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:41:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:41:11,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:41:11,508 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:41:11,510 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:41:11,664 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:41:11,723 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:41:11,724 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:41:11,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:11 BoogieIcfgContainer [2023-11-21 18:41:11,735 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:41:11,736 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:41:11,737 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:41:11,750 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:41:11,751 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:11" (1/1) ... [2023-11-21 18:41:11,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:41:11,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-21 18:41:11,882 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-21 18:41:11,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:41:11,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:11,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:41:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:12,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:41:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:12,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:12,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:41:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:12,286 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:41:12,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:41:12 ImpRootNode [2023-11-21 18:41:12,324 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:41:12,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:41:12,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:41:12,325 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:41:12,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:11" (3/4) ... [2023-11-21 18:41:12,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:41:12,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:41:12,332 INFO L158 Benchmark]: Toolchain (without parser) took 3232.84ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 72.3MB in the beginning and 101.6MB in the end (delta: -29.3MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2023-11-21 18:41:12,333 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 121.6MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:12,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1887.08ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 71.9MB in the beginning and 76.9MB in the end (delta: -5.0MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2023-11-21 18:41:12,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.24ms. Allocated memory is still 153.1MB. Free memory was 76.9MB in the beginning and 73.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:41:12,336 INFO L158 Benchmark]: Boogie Preprocessor took 70.48ms. Allocated memory is still 153.1MB. Free memory was 73.9MB in the beginning and 71.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:12,337 INFO L158 Benchmark]: RCFGBuilder took 537.27ms. Allocated memory is still 153.1MB. Free memory was 71.8MB in the beginning and 57.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:41:12,338 INFO L158 Benchmark]: CodeCheck took 587.53ms. Allocated memory is still 153.1MB. Free memory was 57.1MB in the beginning and 102.7MB in the end (delta: -45.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:12,339 INFO L158 Benchmark]: Witness Printer took 6.11ms. Allocated memory is still 153.1MB. Free memory was 102.7MB in the beginning and 101.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:12,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData; [L1550] int CWE191_Integer_Underflow__int_fgets_sub_68_goodB2GData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_sub_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1567] CWE191_Integer_Underflow__int_fgets_sub_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_sub_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_sub_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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] [L1585] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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 0.42ms. Allocated memory is still 121.6MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1887.08ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 71.9MB in the beginning and 76.9MB in the end (delta: -5.0MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.24ms. Allocated memory is still 153.1MB. Free memory was 76.9MB in the beginning and 73.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.48ms. Allocated memory is still 153.1MB. Free memory was 73.9MB in the beginning and 71.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 537.27ms. Allocated memory is still 153.1MB. Free memory was 71.8MB in the beginning and 57.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 587.53ms. Allocated memory is still 153.1MB. Free memory was 57.1MB in the beginning and 102.7MB in the end (delta: -45.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.11ms. Allocated memory is still 153.1MB. Free memory was 102.7MB in the beginning and 101.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:41:12,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2 --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 bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:41:15,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:41:15,809 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:41:15,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:41:15,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:41:15,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:41:15,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:41:15,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:41:15,880 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:41:15,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:41:15,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:41:15,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:41:15,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:41:15,890 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:41:15,891 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:41:15,891 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:41:15,892 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:41:15,892 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:41:15,893 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:41:15,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:41:15,895 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:41:15,896 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:41:15,897 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:41:15,897 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:41:15,898 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:41:15,898 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:41:15,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:41:15,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:41:15,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:41:15,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:41:15,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:41:15,902 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:41:15,903 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:41:15,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:41:15,903 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:41:15,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:41:15,904 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_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 [2023-11-21 18:41:16,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:41:16,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:41:16,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:41:16,481 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:41:16,486 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:41:16,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2023-11-21 18:41:20,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:41:20,909 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:41:20,910 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2023-11-21 18:41:20,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data/ff49d9023/c9e8e4ba974d4cd7bd6f8e48fe7c7e5a/FLAGd538108fa [2023-11-21 18:41:20,967 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/data/ff49d9023/c9e8e4ba974d4cd7bd6f8e48fe7c7e5a [2023-11-21 18:41:20,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:41:20,973 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:41:20,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:20,975 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:41:20,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:41:20,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:20" (1/1) ... [2023-11-21 18:41:20,987 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318a94d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:20, skipping insertion in model container [2023-11-21 18:41:20,987 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:41:20" (1/1) ... [2023-11-21 18:41:21,090 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:41:21,726 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:41:22,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:22,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:41:22,679 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:41:22,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:41:22,988 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:22,988 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:22,988 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:22,989 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:22,989 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:22,989 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:41:22,998 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:41:22,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22 WrapperNode [2023-11-21 18:41:22,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:41:23,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:23,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:41:23,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:41:23,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,090 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-21 18:41:23,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:41:23,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:41:23,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:41:23,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:41:23,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:41:23,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:41:23,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:41:23,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:41:23,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:41:22" (1/1) ... [2023-11-21 18:41:23,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:41:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:41:23,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:41:23,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:41:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:41:23,268 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:41:23,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:41:23,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:41:23,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:41:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:41:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:41:23,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:41:23,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:41:23,272 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:41:23,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:41:23,580 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:41:23,584 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:41:23,767 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:41:23,866 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:41:23,867 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:41:23,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:23 BoogieIcfgContainer [2023-11-21 18:41:23,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:41:23,870 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:41:23,870 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:41:23,900 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:41:23,900 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:23" (1/1) ... [2023-11-21 18:41:23,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:41:23,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:41:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-21 18:41:24,015 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-21 18:41:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:41:24,025 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:41:24,026 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:41:24,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:41:24,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:41:24,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:41:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:24,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:41:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:24,555 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:41:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:41:24,633 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:41:24,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:41:24,641 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:41:24,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:41:24 ImpRootNode [2023-11-21 18:41:24,674 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:41:24,675 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:41:24,675 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:41:24,675 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:41:24,676 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:41:23" (3/4) ... [2023-11-21 18:41:24,679 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:41:24,680 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:41:24,681 INFO L158 Benchmark]: Toolchain (without parser) took 3708.03ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 46.4MB in the beginning and 54.3MB in the end (delta: -7.9MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-21 18:41:24,682 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 73.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:24,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2024.89ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 46.3MB in the beginning and 68.9MB in the end (delta: -22.6MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2023-11-21 18:41:24,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.76ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 66.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:24,685 INFO L158 Benchmark]: Boogie Preprocessor took 47.59ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 63.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:41:24,685 INFO L158 Benchmark]: RCFGBuilder took 729.34ms. Allocated memory is still 96.5MB. Free memory was 63.7MB in the beginning and 46.3MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 18:41:24,686 INFO L158 Benchmark]: CodeCheck took 804.05ms. Allocated memory is still 96.5MB. Free memory was 46.3MB in the beginning and 54.8MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:24,687 INFO L158 Benchmark]: Witness Printer took 5.41ms. Allocated memory is still 96.5MB. Free memory was 54.8MB in the beginning and 54.3MB in the end (delta: 511.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:41:24,691 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_sub_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1567] CWE191_Integer_Underflow__int_fgets_sub_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_sub_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_sub_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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] [L1585] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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 0.97ms. Allocated memory is still 73.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2024.89ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 46.3MB in the beginning and 68.9MB in the end (delta: -22.6MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.76ms. Allocated memory is still 96.5MB. Free memory was 68.9MB in the beginning and 66.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.59ms. Allocated memory is still 96.5MB. Free memory was 65.7MB in the beginning and 63.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 729.34ms. Allocated memory is still 96.5MB. Free memory was 63.7MB in the beginning and 46.3MB in the end (delta: 17.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 804.05ms. Allocated memory is still 96.5MB. Free memory was 46.3MB in the beginning and 54.8MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.41ms. Allocated memory is still 96.5MB. Free memory was 54.8MB in the beginning and 54.3MB in the end (delta: 511.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:41:24,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a225aa34-aaaa-4e97-b233-ca2e25783582/bin/ukojak-verify-i0I2FZA1j2/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