./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9 --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 d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:20:38,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:20:38,920 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:20:38,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:20:38,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:20:38,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:20:38,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:20:38,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:20:38,948 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:20:38,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:20:38,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:20:38,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:20:38,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:20:38,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:20:38,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:20:38,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:20:38,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:20:38,953 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:20:38,953 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:20:38,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:20:38,954 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:20:38,955 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:20:38,955 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:20:38,955 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:20:38,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:20:38,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:20:38,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:20:38,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:20:38,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:20:38,958 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:20:38,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:20:38,958 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:20:38,958 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_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2023-12-03 03:20:39,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:20:39,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:20:39,193 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:20:39,194 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:20:39,195 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:20:39,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2023-12-03 03:20:42,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:20:42,366 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:20:42,367 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2023-12-03 03:20:42,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data/93bc40c67/4bd6b727ef2c4e61a9e24e762f6a6a51/FLAGe8fc546c1 [2023-12-03 03:20:42,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data/93bc40c67/4bd6b727ef2c4e61a9e24e762f6a6a51 [2023-12-03 03:20:42,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:20:42,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:20:42,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:20:42,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:20:42,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:20:42,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:20:42" (1/1) ... [2023-12-03 03:20:42,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16eb9ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:42, skipping insertion in model container [2023-12-03 03:20:42,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:20:42" (1/1) ... [2023-12-03 03:20:42,485 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:20:43,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:20:43,369 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:20:43,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:20:43,628 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:43,628 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:43,628 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:43,628 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:43,628 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:43,636 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:20:43,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43 WrapperNode [2023-12-03 03:20:43,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:20:43,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:20:43,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:20:43,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:20:43,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,674 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,702 INFO L138 Inliner]: procedures = 500, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2023-12-03 03:20:43,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:20:43,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:20:43,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:20:43,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:20:43,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,718 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,725 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:20:43,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:20:43,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:20:43,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:20:43,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:43" (1/1) ... [2023-12-03 03:20:43,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:20:43,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:20:43,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:20:43,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:20:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:20:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:20:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:20:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:20:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 03:20:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 03:20:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:20:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:20:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:20:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:20:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:20:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 03:20:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:20:43,955 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:20:43,957 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:20:44,081 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:20:44,124 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:20:44,124 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:20:44,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:20:44 BoogieIcfgContainer [2023-12-03 03:20:44,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:20:44,127 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:20:44,127 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:20:44,137 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:20:44,138 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:20:44" (1/1) ... [2023-12-03 03:20:44,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:20:44,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:20:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 03:20:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 03:20:44,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:20:44,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:20:44,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:20:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:44,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:20:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:44,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:44,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:20:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:44,545 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 03:20:44,569 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-03 03:20:44,572 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post105 could not be translated [2023-12-03 03:20:44,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:20:44 ImpRootNode [2023-12-03 03:20:44,577 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:20:44,578 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:20:44,578 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:20:44,578 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:20:44,578 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:20:44" (3/4) ... [2023-12-03 03:20:44,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:20:44,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:20:44,583 INFO L158 Benchmark]: Toolchain (without parser) took 2170.41ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 102.8MB in the beginning and 88.7MB in the end (delta: 14.2MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2023-12-03 03:20:44,583 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 107.0MB. Free memory was 60.0MB in the beginning and 59.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:20:44,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1224.01ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 102.5MB in the beginning and 132.7MB in the end (delta: -30.2MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-12-03 03:20:44,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.81ms. Allocated memory is still 192.9MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:20:44,585 INFO L158 Benchmark]: Boogie Preprocessor took 31.25ms. Allocated memory is still 192.9MB. Free memory was 130.6MB in the beginning and 128.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:20:44,586 INFO L158 Benchmark]: RCFGBuilder took 391.29ms. Allocated memory is still 192.9MB. Free memory was 128.5MB in the beginning and 111.6MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 03:20:44,586 INFO L158 Benchmark]: CodeCheck took 449.65ms. Allocated memory is still 192.9MB. Free memory was 111.6MB in the beginning and 89.6MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-03 03:20:44,587 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 192.9MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 985.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:20:44,590 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:19}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={20978:0}, dataVoidPtr={20978:0}, dataVoidPtr={20978:0}, 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 0.16ms. Allocated memory is still 107.0MB. Free memory was 60.0MB in the beginning and 59.8MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1224.01ms. Allocated memory was 151.0MB in the beginning and 192.9MB in the end (delta: 41.9MB). Free memory was 102.5MB in the beginning and 132.7MB in the end (delta: -30.2MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.81ms. Allocated memory is still 192.9MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.25ms. Allocated memory is still 192.9MB. Free memory was 130.6MB in the beginning and 128.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 391.29ms. Allocated memory is still 192.9MB. Free memory was 128.5MB in the beginning and 111.6MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 449.65ms. Allocated memory is still 192.9MB. Free memory was 111.6MB in the beginning and 89.6MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 192.9MB. Free memory was 89.6MB in the beginning and 88.7MB in the end (delta: 985.3kB). 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: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post105 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 [2023-12-03 03:20:44,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9 --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 d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:20:46,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:20:46,564 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 03:20:46,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:20:46,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:20:46,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:20:46,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:20:46,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:20:46,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:20:46,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:20:46,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:20:46,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:20:46,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:20:46,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:20:46,604 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:20:46,605 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:20:46,605 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:20:46,606 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:20:46,606 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:20:46,606 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:20:46,607 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:20:46,608 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:20:46,608 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:20:46,608 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:20:46,609 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:20:46,609 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:20:46,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:20:46,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:20:46,610 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:20:46,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:20:46,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:20:46,611 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:20:46,612 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:20:46,612 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:20:46,612 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:20:46,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:20:46,613 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_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2023-12-03 03:20:46,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:20:46,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:20:46,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:20:46,922 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:20:46,922 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:20:46,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2023-12-03 03:20:49,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:20:50,038 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:20:50,039 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2023-12-03 03:20:50,063 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data/40e6abe97/4d0c58c5724744e6ad5b467dff0752eb/FLAG2b5aa0887 [2023-12-03 03:20:50,078 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/data/40e6abe97/4d0c58c5724744e6ad5b467dff0752eb [2023-12-03 03:20:50,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:20:50,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:20:50,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:20:50,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:20:50,089 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:20:50,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:20:50" (1/1) ... [2023-12-03 03:20:50,091 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11438c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:50, skipping insertion in model container [2023-12-03 03:20:50,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:20:50" (1/1) ... [2023-12-03 03:20:50,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:20:50,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:20:50,944 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 03:20:50,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:20:51,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:20:51,032 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:20:51,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:20:51,195 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:51,195 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:51,195 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:51,196 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:51,196 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:20:51,201 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:20:51,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51 WrapperNode [2023-12-03 03:20:51,202 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:20:51,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:20:51,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:20:51,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:20:51,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,261 INFO L138 Inliner]: procedures = 505, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2023-12-03 03:20:51,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:20:51,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:20:51,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:20:51,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:20:51,271 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:20:51,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:20:51,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:20:51,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:20:51,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:20:51,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:20:51,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:20:51,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:20:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:20:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:20:51,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:20:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:20:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:20:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:20:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:20:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:20:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 03:20:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:20:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 03:20:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:20:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 03:20:51,552 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:20:51,554 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:20:51,782 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:20:51,821 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:20:51,821 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:20:51,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:20:51 BoogieIcfgContainer [2023-12-03 03:20:51,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:20:51,824 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:20:51,824 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:20:51,834 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:20:51,834 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:20:51" (1/1) ... [2023-12-03 03:20:51,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:20:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:20:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-03 03:20:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-03 03:20:51,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:20:51,903 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:20:51,903 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:20:51,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:20:51,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:20:51,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:20:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:52,307 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:20:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:53,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:20:53,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:20:53,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:20:53,969 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 03:20:53,990 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-03 03:20:53,993 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post103 could not be translated [2023-12-03 03:20:53,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:20:53 ImpRootNode [2023-12-03 03:20:53,998 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:20:53,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:20:53,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:20:53,999 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:20:54,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:20:51" (3/4) ... [2023-12-03 03:20:54,002 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:20:54,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:20:54,003 INFO L158 Benchmark]: Toolchain (without parser) took 3920.40ms. Allocated memory is still 102.8MB. Free memory was 75.9MB in the beginning and 39.4MB in the end (delta: 36.5MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2023-12-03 03:20:54,004 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:20:54,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1117.78ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 54.6MB in the end (delta: 21.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-12-03 03:20:54,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.95ms. Allocated memory is still 102.8MB. Free memory was 54.6MB in the beginning and 51.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:20:54,005 INFO L158 Benchmark]: Boogie Preprocessor took 37.29ms. Allocated memory is still 102.8MB. Free memory was 50.9MB in the beginning and 48.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:20:54,006 INFO L158 Benchmark]: RCFGBuilder took 522.82ms. Allocated memory is still 102.8MB. Free memory was 48.8MB in the beginning and 67.3MB in the end (delta: -18.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-12-03 03:20:54,006 INFO L158 Benchmark]: CodeCheck took 2174.28ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 39.4MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-03 03:20:54,007 INFO L158 Benchmark]: Witness Printer took 3.85ms. Allocated memory is still 102.8MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:20:54,010 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, 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, 0.7s 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={-9223372036854775808:0}, dataVoidPtr={-9223372036854775808:0}, dataVoidPtr={-9223372036854775808:0}, 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 0.21ms. Allocated memory is still 69.2MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1117.78ms. Allocated memory is still 102.8MB. Free memory was 75.6MB in the beginning and 54.6MB in the end (delta: 21.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.95ms. Allocated memory is still 102.8MB. Free memory was 54.6MB in the beginning and 51.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.29ms. Allocated memory is still 102.8MB. Free memory was 50.9MB in the beginning and 48.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 522.82ms. Allocated memory is still 102.8MB. Free memory was 48.8MB in the beginning and 67.3MB in the end (delta: -18.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * CodeCheck took 2174.28ms. Allocated memory is still 102.8MB. Free memory was 67.3MB in the beginning and 39.4MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.85ms. Allocated memory is still 102.8MB. Free memory is still 39.4MB. 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: unknown boogie variable #t~nondet100 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post103 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 [2023-12-03 03:20:54,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a6f914-47df-45d2-aacc-29d0a165c319/bin/ukojak-verify-Qdu7aM0XO9/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