./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_07_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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 83253af13c7a22629a2345dc350e3cb0c9e31eda5718aa85a92be64de51f2867 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:19:16,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:19:16,960 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:19:16,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:19:16,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:19:16,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:19:16,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:19:16,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:19:17,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:19:17,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:19:17,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:19:17,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:19:17,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:19:17,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:19:17,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:19:17,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:19:17,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:19:17,005 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:19:17,005 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:19:17,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:19:17,006 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:19:17,007 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:19:17,007 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:19:17,007 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:19:17,008 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:19:17,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:19:17,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:19:17,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:19:17,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:19:17,010 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:19:17,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:19:17,011 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:19:17,012 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_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83253af13c7a22629a2345dc350e3cb0c9e31eda5718aa85a92be64de51f2867 [2023-12-03 03:19:17,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:19:17,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:19:17,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:19:17,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:19:17,249 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:19:17,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_07_bad.i [2023-12-03 03:19:20,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:19:20,461 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:19:20,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_07_bad.i [2023-12-03 03:19:20,488 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data/7dfb92ac1/c1060b1d9dce4649a40026567aecfe81/FLAGb3646efdd [2023-12-03 03:19:20,504 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data/7dfb92ac1/c1060b1d9dce4649a40026567aecfe81 [2023-12-03 03:19:20,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:19:20,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:19:20,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:19:20,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:19:20,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:19:20,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:19:20" (1/1) ... [2023-12-03 03:19:20,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3582e8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:20, skipping insertion in model container [2023-12-03 03:19:20,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:19:20" (1/1) ... [2023-12-03 03:19:20,589 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:19:21,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:19:21,409 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:19:21,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:19:21,712 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:21,712 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:21,713 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:21,713 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:21,713 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:21,722 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:19:21,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21 WrapperNode [2023-12-03 03:19:21,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:19:21,724 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:19:21,724 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:19:21,724 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:19:21,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,791 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-12-03 03:19:21,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:19:21,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:19:21,792 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:19:21,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:19:21,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,813 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:19:21,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:19:21,825 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:19:21,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:19:21,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:21" (1/1) ... [2023-12-03 03:19:21,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:19:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:19:21,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:19:21,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:19:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:19:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:19:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:19:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:19:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 03:19:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:19:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:19:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:19:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:19:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:19:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:19:22,067 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:19:22,069 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:19:22,215 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:19:22,263 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:19:22,263 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:19:22,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:19:22 BoogieIcfgContainer [2023-12-03 03:19:22,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:19:22,267 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:19:22,267 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:19:22,277 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:19:22,278 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:19:22" (1/1) ... [2023-12-03 03:19:22,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:19:22,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:19:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-12-03 03:19:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-03 03:19:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:19:22,350 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:19:22,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:19:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:19:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:19:22,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:19:22,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 22 transitions. [2023-12-03 03:19:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-12-03 03:19:22,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:19:22,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:19:22,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:19:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:22,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:19:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:22,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:19:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:22,809 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 03:19:22,830 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 03:19:22,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:19:22 ImpRootNode [2023-12-03 03:19:22,836 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:19:22,836 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:19:22,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:19:22,837 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:19:22,837 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:19:22" (3/4) ... [2023-12-03 03:19:22,839 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:19:22,840 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:19:22,841 INFO L158 Benchmark]: Toolchain (without parser) took 2331.48ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 87.8MB in the beginning and 87.8MB in the end (delta: 7.9kB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-12-03 03:19:22,841 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 132.1MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:19:22,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1212.15ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 87.4MB in the beginning and 134.1MB in the end (delta: -46.7MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2023-12-03 03:19:22,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.58ms. Allocated memory is still 184.5MB. Free memory was 134.1MB in the beginning and 130.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:19:22,843 INFO L158 Benchmark]: Boogie Preprocessor took 31.87ms. Allocated memory is still 184.5MB. Free memory was 130.9MB in the beginning and 129.9MB in the end (delta: 951.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:19:22,844 INFO L158 Benchmark]: RCFGBuilder took 441.15ms. Allocated memory is still 184.5MB. Free memory was 129.7MB in the beginning and 114.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 03:19:22,845 INFO L158 Benchmark]: CodeCheck took 569.38ms. Allocated memory is still 184.5MB. Free memory was 114.1MB in the beginning and 87.8MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-03 03:19:22,845 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 184.5MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:19:22,848 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of large string literal at line 1579. 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 staticFive = 5; [L1579] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={19:18}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1580] CALL CWE191_Integer_Underflow__int_fgets_predec_07_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1567] COND TRUE staticFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1570] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 132.1MB. Free memory was 96.8MB in the beginning and 96.7MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1212.15ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 87.4MB in the beginning and 134.1MB in the end (delta: -46.7MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.58ms. Allocated memory is still 184.5MB. Free memory was 134.1MB in the beginning and 130.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.87ms. Allocated memory is still 184.5MB. Free memory was 130.9MB in the beginning and 129.9MB in the end (delta: 951.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.15ms. Allocated memory is still 184.5MB. Free memory was 129.7MB in the beginning and 114.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 569.38ms. Allocated memory is still 184.5MB. Free memory was 114.1MB in the beginning and 87.8MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 184.5MB. Free memory is still 87.8MB. 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~nondet103 - 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 03:19:22,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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 83253af13c7a22629a2345dc350e3cb0c9e31eda5718aa85a92be64de51f2867 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:19:24,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:19:25,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 03:19:25,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:19:25,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:19:25,095 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:19:25,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:19:25,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:19:25,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:19:25,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:19:25,099 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:19:25,100 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:19:25,100 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:19:25,101 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:19:25,101 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:19:25,102 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:19:25,103 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:19:25,103 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:19:25,104 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:19:25,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:19:25,105 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:19:25,106 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:19:25,106 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:19:25,107 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:19:25,107 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:19:25,108 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:19:25,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:19:25,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:19:25,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:19:25,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:19:25,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:19:25,111 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:19:25,111 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:19:25,112 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:19:25,112 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:19:25,112 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:19:25,112 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_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83253af13c7a22629a2345dc350e3cb0c9e31eda5718aa85a92be64de51f2867 [2023-12-03 03:19:25,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:19:25,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:19:25,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:19:25,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:19:25,457 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:19:25,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_07_bad.i [2023-12-03 03:19:28,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:19:28,720 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:19:28,721 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_07_bad.i [2023-12-03 03:19:28,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data/71e4a3445/fd37873babe941869829b0f90a5a4a5e/FLAGf73e1dde4 [2023-12-03 03:19:28,764 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/data/71e4a3445/fd37873babe941869829b0f90a5a4a5e [2023-12-03 03:19:28,767 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:19:28,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:19:28,770 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:19:28,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:19:28,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:19:28,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:19:28" (1/1) ... [2023-12-03 03:19:28,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627cc39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:28, skipping insertion in model container [2023-12-03 03:19:28,777 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:19:28" (1/1) ... [2023-12-03 03:19:28,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:19:29,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:19:29,703 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:19:29,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:19:29,942 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:29,943 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:29,943 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:29,943 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:29,943 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:19:29,949 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:19:29,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29 WrapperNode [2023-12-03 03:19:29,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:19:29,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:19:29,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:19:29,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:19:29,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:29,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,009 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-12-03 03:19:30,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:19:30,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:19:30,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:19:30,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:19:30,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:19:30,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:19:30,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:19:30,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:19:30,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:19:29" (1/1) ... [2023-12-03 03:19:30,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:19:30,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:19:30,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:19:30,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:19:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:19:30,116 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:19:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:19:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:19:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:19:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:19:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:19:30,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:19:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:19:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:19:30,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 03:19:30,277 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:19:30,279 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:19:30,434 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:19:30,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:19:30,480 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 03:19:30,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:19:30 BoogieIcfgContainer [2023-12-03 03:19:30,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:19:30,483 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:19:30,483 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:19:30,494 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:19:30,495 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:19:30" (1/1) ... [2023-12-03 03:19:30,505 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:19:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:19:30,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-12-03 03:19:30,565 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-03 03:19:30,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:19:30,570 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:19:30,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:19:30,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:19:30,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:19:30,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:19:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:19:30,702 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:19:30,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:19:30,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 03:19:30,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:19:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:19:30,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:19:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:19:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 27 transitions. [2023-12-03 03:19:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-03 03:19:30,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:19:30,862 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:19:30,863 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:19:30,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:19:30,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:19:30,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 03:19:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:31,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:19:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:31,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:19:31,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:19:31,325 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 03:19:31,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 03:19:31,329 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 03:19:31,358 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-03 03:19:31,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:19:31 ImpRootNode [2023-12-03 03:19:31,365 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:19:31,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:19:31,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:19:31,366 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:19:31,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:19:30" (3/4) ... [2023-12-03 03:19:31,369 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:19:31,370 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:19:31,371 INFO L158 Benchmark]: Toolchain (without parser) took 2602.78ms. Allocated memory was 71.3MB in the beginning and 113.2MB in the end (delta: 41.9MB). Free memory was 38.1MB in the beginning and 48.1MB in the end (delta: -10.0MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2023-12-03 03:19:31,372 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:19:31,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1179.71ms. Allocated memory was 71.3MB in the beginning and 113.2MB in the end (delta: 41.9MB). Free memory was 37.9MB in the beginning and 60.7MB in the end (delta: -22.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-12-03 03:19:31,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.33ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 57.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:19:31,374 INFO L158 Benchmark]: Boogie Preprocessor took 38.42ms. Allocated memory is still 113.2MB. Free memory was 57.9MB in the beginning and 55.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:19:31,375 INFO L158 Benchmark]: RCFGBuilder took 432.81ms. Allocated memory is still 113.2MB. Free memory was 55.8MB in the beginning and 78.2MB in the end (delta: -22.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-12-03 03:19:31,376 INFO L158 Benchmark]: CodeCheck took 882.26ms. Allocated memory is still 113.2MB. Free memory was 78.2MB in the beginning and 48.8MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-12-03 03:19:31,376 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 113.2MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:19:31,380 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of large string literal at line 1579. 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 staticFive = 5; [L1579] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] 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, staticFive=5] [L1580] CALL CWE191_Integer_Underflow__int_fgets_predec_07_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1567] COND TRUE staticFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1570] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1179.71ms. Allocated memory was 71.3MB in the beginning and 113.2MB in the end (delta: 41.9MB). Free memory was 37.9MB in the beginning and 60.7MB in the end (delta: -22.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.33ms. Allocated memory is still 113.2MB. Free memory was 60.7MB in the beginning and 57.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.42ms. Allocated memory is still 113.2MB. Free memory was 57.9MB in the beginning and 55.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 432.81ms. Allocated memory is still 113.2MB. Free memory was 55.8MB in the beginning and 78.2MB in the end (delta: -22.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * CodeCheck took 882.26ms. Allocated memory is still 113.2MB. Free memory was 78.2MB in the beginning and 48.8MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 113.2MB. Free memory is still 48.1MB. 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~nondet101 - 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 03:19:31,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b6f503-f3f1-46b5-a02e-82c3a827c10f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample