./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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 edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:37:16,403 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:37:16,533 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:37:16,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:37:16,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:37:16,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:37:16,586 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:37:16,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:37:16,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:37:16,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:37:16,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:37:16,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:37:16,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:37:16,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:37:16,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:37:16,597 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:37:16,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:37:16,598 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:37:16,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:37:16,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:37:16,599 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:37:16,601 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:37:16,601 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:37:16,602 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:37:16,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:37:16,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:16,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:37:16,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:37:16,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:37:16,604 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:37:16,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:37:16,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:37:16,606 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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 [2023-11-21 18:37:16,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:37:17,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:37:17,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:37:17,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:37:17,010 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:37:17,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2023-11-21 18:37:20,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:37:20,537 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:37:20,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2023-11-21 18:37:20,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data/9c260c036/276a80e1e53a4e30adc2986fd79f9048/FLAG9bc9231e9 [2023-11-21 18:37:20,591 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data/9c260c036/276a80e1e53a4e30adc2986fd79f9048 [2023-11-21 18:37:20,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:37:20,599 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:37:20,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:20,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:37:20,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:37:20,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:20" (1/1) ... [2023-11-21 18:37:20,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433f0012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:20, skipping insertion in model container [2023-11-21 18:37:20,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:20" (1/1) ... [2023-11-21 18:37:20,695 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:37:21,189 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:37:21,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:21,739 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:37:21,761 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:37:21,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:21,990 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:21,997 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:21,998 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:21,998 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:21,998 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:21,998 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:22,028 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:37:22,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22 WrapperNode [2023-11-21 18:37:22,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:22,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:22,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:37:22,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:37:22,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,147 INFO L138 Inliner]: procedures = 500, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2023-11-21 18:37:22,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:22,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:37:22,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:37:22,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:37:22,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,198 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:37:22,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:37:22,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:37:22,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:37:22,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:22,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:37:22,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:37:22,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:37:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:37:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:37:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:37:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:37:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:37:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:37:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:37:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:37:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:37:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:37:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:37:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:37:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:37:22,445 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:37:22,447 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:37:22,648 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:37:22,688 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:37:22,689 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:37:22,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:22 BoogieIcfgContainer [2023-11-21 18:37:22,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:37:22,691 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:37:22,691 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:37:22,702 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:37:22,702 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:22" (1/1) ... [2023-11-21 18:37:22,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:37:22,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-21 18:37:22,768 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-21 18:37:22,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:37:22,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:22,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:37:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:22,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:37:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:23,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:37:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:23,294 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:37:23,321 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post102 could not be translated [2023-11-21 18:37:23,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:37:23 ImpRootNode [2023-11-21 18:37:23,326 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:37:23,327 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:37:23,327 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:37:23,327 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:37:23,328 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:22" (3/4) ... [2023-11-21 18:37:23,330 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:37:23,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:37:23,332 INFO L158 Benchmark]: Toolchain (without parser) took 2733.18ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 78.4MB in the end (delta: 51.3MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2023-11-21 18:37:23,332 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:23,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1442.10ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 122.2MB in the end (delta: 7.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-21 18:37:23,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.86ms. Allocated memory is still 161.5MB. Free memory was 122.2MB in the beginning and 119.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:37:23,334 INFO L158 Benchmark]: Boogie Preprocessor took 49.69ms. Allocated memory is still 161.5MB. Free memory was 119.2MB in the beginning and 118.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:23,335 INFO L158 Benchmark]: RCFGBuilder took 491.77ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 101.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:37:23,336 INFO L158 Benchmark]: CodeCheck took 635.19ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 78.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 18:37:23,336 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 161.5MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:23,340 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: 0.6s, 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, 0.1s 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: 1572]: 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); [L1581] 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) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:80}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [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] EXPR *dataPtr1 = data [L1554-L1568] { int data = *dataPtr1; { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } *dataPtr1 = data; } [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={15086:0}, dataPtr1={15086:0}, dataPtr2={15086:0}, 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 0.23ms. Allocated memory is still 130.0MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1442.10ms. Allocated memory is still 161.5MB. Free memory was 129.7MB in the beginning and 122.2MB in the end (delta: 7.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.86ms. Allocated memory is still 161.5MB. Free memory was 122.2MB in the beginning and 119.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.69ms. Allocated memory is still 161.5MB. Free memory was 119.2MB in the beginning and 118.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 491.77ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 101.5MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 635.19ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 78.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 161.5MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~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 [2023-11-21 18:37:23,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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 edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:37:25,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:37:26,109 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:37:26,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:37:26,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:37:26,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:37:26,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:37:26,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:37:26,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:37:26,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:37:26,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:37:26,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:37:26,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:37:26,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:37:26,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:37:26,171 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:37:26,171 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:37:26,172 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:37:26,172 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:37:26,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:37:26,174 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:37:26,175 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:37:26,175 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:37:26,176 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:37:26,176 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:26,177 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:37:26,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:37:26,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:26,178 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:37:26,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:37:26,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:37:26,180 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:37:26,180 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:26,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:37:26,181 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:37:26,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:37:26,182 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_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 [2023-11-21 18:37:26,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:37:26,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:37:26,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:37:26,567 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:37:26,567 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:37:26,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2023-11-21 18:37:29,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:37:30,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:37:30,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2023-11-21 18:37:30,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data/0d5dd37c9/1c0edcd1939747718dedb3c903be25d9/FLAG4a73e119b [2023-11-21 18:37:30,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/data/0d5dd37c9/1c0edcd1939747718dedb3c903be25d9 [2023-11-21 18:37:30,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:37:30,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:37:30,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:30,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:37:30,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:37:30,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:30" (1/1) ... [2023-11-21 18:37:30,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b19c6a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:30, skipping insertion in model container [2023-11-21 18:37:30,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:37:30" (1/1) ... [2023-11-21 18:37:30,272 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:37:30,642 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:37:31,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:31,173 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:37:31,195 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:37:31,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:37:31,460 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:31,460 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:31,460 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:31,461 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:31,461 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:31,461 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:37:31,469 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:37:31,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31 WrapperNode [2023-11-21 18:37:31,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:37:31,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:31,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:37:31,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:37:31,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,533 INFO L138 Inliner]: procedures = 505, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-11-21 18:37:31,534 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:37:31,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:37:31,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:37:31,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:37:31,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,559 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:37:31,582 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:37:31,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:37:31,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:37:31,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:37:31" (1/1) ... [2023-11-21 18:37:31,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:37:31,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:37:31,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:37:31,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:37:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:37:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:37:31,687 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:37:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:37:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:37:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:37:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:37:31,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:37:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 18:37:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:37:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 18:37:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:37:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:37:31,906 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:37:31,908 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:37:32,179 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:37:32,246 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:37:32,246 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:37:32,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:32 BoogieIcfgContainer [2023-11-21 18:37:32,248 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:37:32,249 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:37:32,250 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:37:32,259 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:37:32,260 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:32" (1/1) ... [2023-11-21 18:37:32,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:37:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:37:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-21 18:37:32,341 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-21 18:37:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:37:32,346 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:37:32,347 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:37:32,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:37:32,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:37:32,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:37:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:32,666 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:37:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:33,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:37:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:37:33,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-21 18:37:33,246 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-21 18:37:33,290 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-21 18:37:33,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:37:33 ImpRootNode [2023-11-21 18:37:33,298 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:37:33,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:37:33,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:37:33,301 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:37:33,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:37:32" (3/4) ... [2023-11-21 18:37:33,303 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:37:33,305 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:37:33,306 INFO L158 Benchmark]: Toolchain (without parser) took 3133.35ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 61.8MB in the beginning and 62.7MB in the end (delta: -890.2kB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-21 18:37:33,307 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 92.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:33,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1292.93ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 61.6MB in the beginning and 74.2MB in the end (delta: -12.6MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-11-21 18:37:33,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.80ms. Allocated memory is still 119.5MB. Free memory was 74.2MB in the beginning and 71.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:37:33,310 INFO L158 Benchmark]: Boogie Preprocessor took 46.36ms. Allocated memory is still 119.5MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:37:33,311 INFO L158 Benchmark]: RCFGBuilder took 666.63ms. Allocated memory is still 119.5MB. Free memory was 68.9MB in the beginning and 84.3MB in the end (delta: -15.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-21 18:37:33,312 INFO L158 Benchmark]: CodeCheck took 1049.26ms. Allocated memory is still 119.5MB. Free memory was 84.3MB in the beginning and 63.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 18:37:33,316 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 119.5MB. Free memory was 63.4MB in the beginning and 62.7MB in the end (delta: 683.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:37:33,325 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: 1.0s, 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, 0.1s 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: 1572]: 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); [L1581] 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) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [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] EXPR *dataPtr1 = data [L1554-L1568] { int data = *dataPtr1; { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } *dataPtr1 = data; } [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, data={6:0}, dataPtr1={6:0}, dataPtr2={6:0}, 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 0.29ms. Allocated memory is still 90.2MB. Free memory was 65.5MB in the beginning and 65.4MB in the end (delta: 92.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1292.93ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 61.6MB in the beginning and 74.2MB in the end (delta: -12.6MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.80ms. Allocated memory is still 119.5MB. Free memory was 74.2MB in the beginning and 71.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.36ms. Allocated memory is still 119.5MB. Free memory was 71.0MB in the beginning and 68.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.63ms. Allocated memory is still 119.5MB. Free memory was 68.9MB in the beginning and 84.3MB in the end (delta: -15.4MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * CodeCheck took 1049.26ms. Allocated memory is still 119.5MB. Free memory was 84.3MB in the beginning and 63.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 119.5MB. Free memory was 63.4MB in the beginning and 62.7MB in the end (delta: 683.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~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 [2023-11-21 18:37:33,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8db9cc09-5b10-4934-9935-d9f5bbf8cddd/bin/ukojak-verify-i0I2FZA1j2/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample