./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_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_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/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_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/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_421f9357-671d-4ebd-b33d-5d037203cc18/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 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:21:55,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:21:55,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 02:21:55,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:21:55,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:21:55,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:21:55,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:21:55,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:21:55,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:21:55,679 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:21:55,680 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:21:55,680 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:21:55,681 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:21:55,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:21:55,682 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:21:55,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:21:55,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:21:55,683 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:21:55,684 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:21:55,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:21:55,685 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:21:55,685 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:21:55,686 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:21:55,686 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:21:55,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:21:55,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:21:55,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:21:55,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:21:55,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:21:55,688 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:21:55,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:21:55,689 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:21:55,689 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_421f9357-671d-4ebd-b33d-5d037203cc18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 [2023-12-03 02:21:55,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:21:55,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:21:55,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:21:55,913 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:21:55,913 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:21:55,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2023-12-03 02:21:58,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:21:58,966 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:21:58,967 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2023-12-03 02:21:58,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data/f453ba670/bd313bb7bf97459c99524ba4d7a77616/FLAGce798ddb7 [2023-12-03 02:21:59,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data/f453ba670/bd313bb7bf97459c99524ba4d7a77616 [2023-12-03 02:21:59,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:21:59,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:21:59,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:21:59,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:21:59,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:21:59,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:21:59" (1/1) ... [2023-12-03 02:21:59,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f423e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:21:59, skipping insertion in model container [2023-12-03 02:21:59,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:21:59" (1/1) ... [2023-12-03 02:21:59,305 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:22:00,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:22:00,084 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:22:00,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:22:00,368 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:00,369 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:00,369 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:00,369 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:00,369 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:00,376 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:22:00,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00 WrapperNode [2023-12-03 02:22:00,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:22:00,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:22:00,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:22:00,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:22:00,385 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,416 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,445 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-12-03 02:22:00,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:22:00,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:22:00,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:22:00,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:22:00,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:22:00,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:22:00,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:22:00,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:22:00,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:22:00,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:22:00,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:22:00,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:22:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 02:22:00,570 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 02:22:00,571 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 02:22:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 02:22:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 02:22:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:22:00,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:22:00,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:22:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 02:22:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 02:22:00,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 02:22:00,750 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:22:00,753 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:22:00,875 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:22:00,909 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:22:00,909 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 02:22:00,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:22:00 BoogieIcfgContainer [2023-12-03 02:22:00,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:22:00,912 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:22:00,912 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:22:00,921 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:22:00,921 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:22:00" (1/1) ... [2023-12-03 02:22:00,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:22:00,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:22:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-12-03 02:22:00,983 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-03 02:22:00,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 02:22:00,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:22:00,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:22:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:22:01,200 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 02:22:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:22:01,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 24 transitions. [2023-12-03 02:22:01,239 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-12-03 02:22:01,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 02:22:01,240 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:22:01,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:22:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:01,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:22:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:01,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:01,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:22:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:01,403 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 02:22:01,426 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-03 02:22:01,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:22:01 ImpRootNode [2023-12-03 02:22:01,432 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:22:01,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:22:01,432 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:22:01,433 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:22:01,433 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:22:00" (3/4) ... [2023-12-03 02:22:01,434 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 02:22:01,435 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:22:01,436 INFO L158 Benchmark]: Toolchain (without parser) took 2197.58ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 96.2MB in the beginning and 82.7MB in the end (delta: 13.6MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2023-12-03 02:22:01,437 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:22:01,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1138.23ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 95.9MB in the beginning and 128.8MB in the end (delta: -32.9MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2023-12-03 02:22:01,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.23ms. Allocated memory is still 197.1MB. Free memory was 128.8MB in the beginning and 125.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:22:01,439 INFO L158 Benchmark]: Boogie Preprocessor took 33.80ms. Allocated memory is still 197.1MB. Free memory was 125.7MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:22:01,440 INFO L158 Benchmark]: RCFGBuilder took 429.96ms. Allocated memory is still 197.1MB. Free memory was 123.6MB in the beginning and 108.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 02:22:01,440 INFO L158 Benchmark]: CodeCheck took 520.05ms. Allocated memory is still 197.1MB. Free memory was 108.9MB in the beginning and 82.7MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-03 02:22:01,441 INFO L158 Benchmark]: Witness Printer took 3.09ms. Allocated memory is still 197.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:22:01,444 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, 20 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, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 19 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, 17 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 69 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 1558, overapproximation of large string literal at line 1578. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:32}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_14_bad() [L1550] int data; [L1551] 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] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { 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=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalFive==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, 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 0.28ms. Allocated memory is still 96.5MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1138.23ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 95.9MB in the beginning and 128.8MB in the end (delta: -32.9MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.23ms. Allocated memory is still 197.1MB. Free memory was 128.8MB in the beginning and 125.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.80ms. Allocated memory is still 197.1MB. Free memory was 125.7MB in the beginning and 123.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.96ms. Allocated memory is still 197.1MB. Free memory was 123.6MB in the beginning and 108.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 520.05ms. Allocated memory is still 197.1MB. Free memory was 108.9MB in the beginning and 82.7MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.09ms. Allocated memory is still 197.1MB. Free memory is still 82.7MB. 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 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 02:22:01,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/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_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/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_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/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_421f9357-671d-4ebd-b33d-5d037203cc18/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 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:22:03,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:22:03,416 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 02:22:03,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:22:03,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:22:03,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:22:03,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:22:03,449 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:22:03,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:22:03,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:22:03,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:22:03,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:22:03,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:22:03,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:22:03,452 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 02:22:03,453 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 02:22:03,453 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:22:03,454 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 02:22:03,454 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:22:03,455 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:22:03,455 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:22:03,456 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:22:03,456 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:22:03,457 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:22:03,457 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:22:03,458 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 02:22:03,458 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:22:03,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:22:03,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:22:03,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:22:03,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:22:03,460 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 02:22:03,460 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 02:22:03,460 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:22:03,461 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 02:22:03,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 02:22:03,461 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_421f9357-671d-4ebd-b33d-5d037203cc18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a2ffd715bb237e27de081f3fb509e4759707f61fe3957e5688adb5c1e28a582 [2023-12-03 02:22:03,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:22:03,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:22:03,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:22:03,780 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:22:03,780 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:22:03,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2023-12-03 02:22:06,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:22:06,857 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:22:06,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_14_bad.i [2023-12-03 02:22:06,880 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data/473dc0061/a032b5efd78249d299ff3feae4f3daed/FLAGcfebc4b3b [2023-12-03 02:22:06,895 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/data/473dc0061/a032b5efd78249d299ff3feae4f3daed [2023-12-03 02:22:06,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:22:06,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:22:06,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:22:06,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:22:06,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:22:06,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:22:06" (1/1) ... [2023-12-03 02:22:06,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3276be1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:06, skipping insertion in model container [2023-12-03 02:22:06,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:22:06" (1/1) ... [2023-12-03 02:22:06,967 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:22:07,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:22:07,737 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:22:07,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:22:07,960 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:07,960 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:07,960 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:07,960 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:07,961 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 02:22:07,966 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:22:07,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07 WrapperNode [2023-12-03 02:22:07,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:22:07,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:22:07,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:22:07,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:22:07,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,025 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-12-03 02:22:08,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:22:08,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:22:08,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:22:08,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:22:08,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,049 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,051 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:22:08,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:22:08,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:22:08,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:22:08,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:22:07" (1/1) ... [2023-12-03 02:22:08,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:22:08,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:22:08,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:22:08,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:22:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 02:22:08,123 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 02:22:08,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 02:22:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 02:22:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 02:22:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 02:22:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:22:08,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:22:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 02:22:08,124 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 02:22:08,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 02:22:08,300 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:22:08,303 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:22:08,448 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:22:08,494 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:22:08,495 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 02:22:08,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:22:08 BoogieIcfgContainer [2023-12-03 02:22:08,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:22:08,498 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:22:08,498 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:22:08,510 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:22:08,510 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:22:08" (1/1) ... [2023-12-03 02:22:08,520 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:22:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:22:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-12-03 02:22:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-03 02:22:08,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 02:22:08,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:22:08,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:22:08,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:22:08,612 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:22:08,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:22:08,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:22:08,754 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:22:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:22:08,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 02:22:08,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:22:08,831 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 02:22:08,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:22:08,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:22:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 29 transitions. [2023-12-03 02:22:08,904 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2023-12-03 02:22:08,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 02:22:08,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:22:08,906 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:22:08,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:22:08,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:22:08,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 02:22:09,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:09,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:22:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:09,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:22:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:22:09,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 02:22:09,339 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 02:22:09,340 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 02:22:09,365 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-03 02:22:09,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:22:09 ImpRootNode [2023-12-03 02:22:09,371 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:22:09,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:22:09,372 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:22:09,372 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:22:09,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:22:08" (3/4) ... [2023-12-03 02:22:09,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 02:22:09,375 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:22:09,376 INFO L158 Benchmark]: Toolchain (without parser) took 2477.30ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 42.2MB in the beginning and 71.1MB in the end (delta: -28.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-12-03 02:22:09,376 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 69.2MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:22:09,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1067.31ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 41.9MB in the beginning and 54.9MB in the end (delta: -13.0MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2023-12-03 02:22:09,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.20ms. Allocated memory is still 104.9MB. Free memory was 54.9MB in the beginning and 51.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:22:09,378 INFO L158 Benchmark]: Boogie Preprocessor took 35.86ms. Allocated memory is still 104.9MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:22:09,379 INFO L158 Benchmark]: RCFGBuilder took 433.89ms. Allocated memory is still 104.9MB. Free memory was 49.8MB in the beginning and 66.0MB in the end (delta: -16.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-12-03 02:22:09,380 INFO L158 Benchmark]: CodeCheck took 872.99ms. Allocated memory is still 104.9MB. Free memory was 65.4MB in the beginning and 71.1MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:22:09,380 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 104.9MB. Free memory is still 71.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:22:09,383 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, 20 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, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 25 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, 19 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 76 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, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 1558, overapproximation of large string literal at line 1578. 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_14_bad() [L1550] int data; [L1551] 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] [L1552] COND TRUE globalFive==5 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { 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] [L1566] COND TRUE globalFive==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] [L1568] COND TRUE data < 0 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] [L1570] data * 2 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] * 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 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1067.31ms. Allocated memory was 69.2MB in the beginning and 104.9MB in the end (delta: 35.7MB). Free memory was 41.9MB in the beginning and 54.9MB in the end (delta: -13.0MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.20ms. Allocated memory is still 104.9MB. Free memory was 54.9MB in the beginning and 51.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.86ms. Allocated memory is still 104.9MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.89ms. Allocated memory is still 104.9MB. Free memory was 49.8MB in the beginning and 66.0MB in the end (delta: -16.2MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * CodeCheck took 872.99ms. Allocated memory is still 104.9MB. Free memory was 65.4MB in the beginning and 71.1MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 104.9MB. Free memory is still 71.1MB. 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~nondet100 - 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 02:22:09,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421f9357-671d-4ebd-b33d-5d037203cc18/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