./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:19:00,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:19:00,611 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:19:00,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:19:00,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:19:00,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:19:00,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:19:00,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:19:00,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:19:00,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:19:00,652 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:19:00,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:19:00,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:19:00,654 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:19:00,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:19:00,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:19:00,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:19:00,657 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:19:00,657 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:19:00,658 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:19:00,658 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:19:00,659 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:19:00,660 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:19:00,660 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:19:00,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:19:00,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:00,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:19:00,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:19:00,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:19:00,663 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:19:00,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:19:00,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:19:00,665 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_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 [2023-11-23 20:19:00,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:19:01,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:19:01,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:19:01,035 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:19:01,036 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:19:01,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2023-11-23 20:19:04,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:19:04,737 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:19:04,738 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2023-11-23 20:19:04,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data/d31522390/177807fa7a794d279a52274e60243856/FLAG2e3eccc84 [2023-11-23 20:19:04,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data/d31522390/177807fa7a794d279a52274e60243856 [2023-11-23 20:19:04,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:19:04,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:19:04,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:04,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:19:04,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:19:04,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:04" (1/1) ... [2023-11-23 20:19:04,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2f6392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:04, skipping insertion in model container [2023-11-23 20:19:04,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:04" (1/1) ... [2023-11-23 20:19:04,889 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:19:05,332 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:06,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:06,086 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:19:06,107 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:06,172 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:06,388 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:06,388 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:06,389 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:06,389 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:06,389 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:06,389 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:06,398 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:19:06,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06 WrapperNode [2023-11-23 20:19:06,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:06,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:06,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:19:06,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:19:06,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,500 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2023-11-23 20:19:06,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:06,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:19:06,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:19:06,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:19:06,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:19:06,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:19:06,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:19:06,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:19:06,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:06" (1/1) ... [2023-11-23 20:19:06,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:06,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:19:06,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:19:06,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:19:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:19:06,627 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:19:06,627 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:19:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:19:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:19:06,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:19:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:19:06,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:19:06,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:19:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:19:06,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:19:06,804 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:19:06,807 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:19:06,941 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:19:07,024 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:19:07,025 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:19:07,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:07 BoogieIcfgContainer [2023-11-23 20:19:07,028 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:19:07,029 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:19:07,029 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:19:07,040 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:19:07,041 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:07" (1/1) ... [2023-11-23 20:19:07,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:19:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:19:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:19:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:19:07,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:07,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:19:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:07,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:07,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:07,544 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:19:07,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-11-23 20:19:07,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:19:07 ImpRootNode [2023-11-23 20:19:07,599 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:19:07,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:19:07,602 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:19:07,602 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:19:07,603 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:07" (3/4) ... [2023-11-23 20:19:07,607 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:19:07,609 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:19:07,611 INFO L158 Benchmark]: Toolchain (without parser) took 2812.13ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 108.2MB in the beginning and 118.1MB in the end (delta: -9.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-23 20:19:07,611 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 159.4MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:07,613 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1601.04ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 107.7MB in the beginning and 156.9MB in the end (delta: -49.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-23 20:19:07,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.01ms. Allocated memory is still 216.0MB. Free memory was 156.9MB in the beginning and 154.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:19:07,616 INFO L158 Benchmark]: Boogie Preprocessor took 33.57ms. Allocated memory is still 216.0MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:19:07,617 INFO L158 Benchmark]: RCFGBuilder took 491.96ms. Allocated memory is still 216.0MB. Free memory was 152.7MB in the beginning and 136.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:19:07,618 INFO L158 Benchmark]: CodeCheck took 570.42ms. Allocated memory is still 216.0MB. Free memory was 136.9MB in the beginning and 119.1MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:19:07,619 INFO L158 Benchmark]: Witness Printer took 7.55ms. Allocated memory is still 216.0MB. Free memory was 119.1MB in the beginning and 118.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:07,635 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. 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] static int CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=27, argc=27, argv={28:26}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] CWE191_Integer_Underflow__int_fgets_postdec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1555] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_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 0.37ms. Allocated memory is still 159.4MB. Free memory is still 106.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1601.04ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 107.7MB in the beginning and 156.9MB in the end (delta: -49.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.01ms. Allocated memory is still 216.0MB. Free memory was 156.9MB in the beginning and 154.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.57ms. Allocated memory is still 216.0MB. Free memory was 154.8MB in the beginning and 152.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.96ms. Allocated memory is still 216.0MB. Free memory was 152.7MB in the beginning and 136.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 570.42ms. Allocated memory is still 216.0MB. Free memory was 136.9MB in the beginning and 119.1MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 7.55ms. Allocated memory is still 216.0MB. Free memory was 119.1MB in the beginning and 118.1MB in the end (delta: 1.0MB). 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~post98 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:19:07,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:19:10,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:19:10,781 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:19:10,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:19:10,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:19:10,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:19:10,845 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:19:10,846 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:19:10,847 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:19:10,853 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:19:10,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:19:10,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:19:10,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:19:10,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:19:10,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:19:10,859 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:19:10,859 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:19:10,860 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:19:10,861 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:19:10,861 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:19:10,862 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:19:10,863 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:19:10,864 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:19:10,864 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:19:10,865 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:19:10,865 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:19:10,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:19:10,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:10,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:19:10,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:19:10,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:19:10,870 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:19:10,871 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:19:10,871 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:19:10,872 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:19:10,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:19:10,872 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_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 [2023-11-23 20:19:11,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:19:11,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:19:11,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:19:11,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:19:11,372 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:19:11,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2023-11-23 20:19:14,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:19:14,986 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:19:14,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2023-11-23 20:19:15,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data/69e4272d8/10fbefb75b69430c8e893487a524fbec/FLAG13d74c78f [2023-11-23 20:19:15,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/data/69e4272d8/10fbefb75b69430c8e893487a524fbec [2023-11-23 20:19:15,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:19:15,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:19:15,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:15,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:19:15,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:19:15,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:15" (1/1) ... [2023-11-23 20:19:15,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0dfd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:15, skipping insertion in model container [2023-11-23 20:19:15,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:19:15" (1/1) ... [2023-11-23 20:19:15,132 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:19:15,613 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:16,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:16,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:19:16,366 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:19:16,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:19:16,593 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:16,593 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:16,593 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:16,594 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:16,594 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:16,594 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:19:16,602 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:19:16,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16 WrapperNode [2023-11-23 20:19:16,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:19:16,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:16,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:19:16,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:19:16,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,673 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-23 20:19:16,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:19:16,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:19:16,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:19:16,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:19:16,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:19:16,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:19:16,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:19:16,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:19:16,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:19:16" (1/1) ... [2023-11-23 20:19:16,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:19:16,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:19:16,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:19:16,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:19:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:19:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:19:16,802 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:19:16,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:19:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:19:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:19:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:19:16,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:19:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:19:16,804 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:19:16,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:19:17,047 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:19:17,050 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:19:17,274 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:19:17,354 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:19:17,354 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:19:17,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:17 BoogieIcfgContainer [2023-11-23 20:19:17,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:19:17,358 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:19:17,358 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:19:17,369 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:19:17,370 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:17" (1/1) ... [2023-11-23 20:19:17,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:19:17,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:19:17,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2023-11-23 20:19:17,463 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-23 20:19:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:19:17,470 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:19:17,470 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:19:17,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:19:17,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:19:17,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:19:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:17,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:17,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:19:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:19:17,996 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:19:17,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-23 20:19:17,999 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-23 20:19:18,034 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post96 could not be translated [2023-11-23 20:19:18,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:19:18 ImpRootNode [2023-11-23 20:19:18,041 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:19:18,044 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:19:18,044 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:19:18,044 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:19:18,045 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:19:17" (3/4) ... [2023-11-23 20:19:18,047 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:19:18,049 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:19:18,050 INFO L158 Benchmark]: Toolchain (without parser) took 3011.52ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 58.2MB in the beginning and 57.5MB in the end (delta: 697.9kB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2023-11-23 20:19:18,051 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 86.0MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:18,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1564.01ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 58.0MB in the beginning and 66.2MB in the end (delta: -8.2MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2023-11-23 20:19:18,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.31ms. Allocated memory is still 115.3MB. Free memory was 66.2MB in the beginning and 63.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:19:18,054 INFO L158 Benchmark]: Boogie Preprocessor took 40.26ms. Allocated memory is still 115.3MB. Free memory was 63.1MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:19:18,054 INFO L158 Benchmark]: RCFGBuilder took 641.83ms. Allocated memory is still 115.3MB. Free memory was 61.0MB in the beginning and 75.8MB in the end (delta: -14.8MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-23 20:19:18,055 INFO L158 Benchmark]: CodeCheck took 683.40ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 58.1MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 20:19:18,056 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 115.3MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:19:18,059 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, 0.0s 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. 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] static int CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] CWE191_Integer_Underflow__int_fgets_postdec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1555] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_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 0.67ms. Allocated memory is still 86.0MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1564.01ms. Allocated memory was 86.0MB in the beginning and 115.3MB in the end (delta: 29.4MB). Free memory was 58.0MB in the beginning and 66.2MB in the end (delta: -8.2MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.31ms. Allocated memory is still 115.3MB. Free memory was 66.2MB in the beginning and 63.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.26ms. Allocated memory is still 115.3MB. Free memory was 63.1MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 641.83ms. Allocated memory is still 115.3MB. Free memory was 61.0MB in the beginning and 75.8MB in the end (delta: -14.8MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * CodeCheck took 683.40ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 58.1MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 115.3MB. Free memory is still 57.5MB. 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~post96 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:19:18,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e71a8100-ca1b-40ba-a4f9-1d9cbc9b7052/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample