./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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 e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:16:37,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:16:37,735 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 00:16:37,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:16:37,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:16:37,766 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:16:37,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:16:37,768 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:16:37,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:16:37,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:16:37,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:16:37,771 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:16:37,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:16:37,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:16:37,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:16:37,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:16:37,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:16:37,774 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:16:37,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:16:37,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:16:37,775 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:16:37,776 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:16:37,777 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:16:37,777 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:16:37,778 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:16:37,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:16:37,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:16:37,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:16:37,780 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:16:37,780 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:16:37,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:16:37,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:16:37,782 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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe [2023-12-03 00:16:38,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:16:38,059 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:16:38,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:16:38,063 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:16:38,063 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:16:38,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-12-03 00:16:40,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:16:41,278 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:16:41,279 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-12-03 00:16:41,303 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data/1ad63d0a5/043757ef061542ed980024d231afcc88/FLAGa3f363f34 [2023-12-03 00:16:41,318 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data/1ad63d0a5/043757ef061542ed980024d231afcc88 [2023-12-03 00:16:41,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:16:41,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:16:41,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:16:41,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:16:41,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:16:41,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:16:41" (1/1) ... [2023-12-03 00:16:41,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14874d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:41, skipping insertion in model container [2023-12-03 00:16:41,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:16:41" (1/1) ... [2023-12-03 00:16:41,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:16:42,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:16:42,236 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:16:42,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:16:42,469 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:42,469 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:42,469 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:42,469 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:42,469 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:42,477 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:16:42,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42 WrapperNode [2023-12-03 00:16:42,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:16:42,479 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:16:42,479 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:16:42,479 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:16:42,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,538 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2023-12-03 00:16:42,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:16:42,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:16:42,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:16:42,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:16:42,547 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:16:42,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:16:42,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:16:42,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:16:42,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:16:42,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:16:42,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:16:42,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:16:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 00:16:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 00:16:42,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 00:16:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:16:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 00:16:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:16:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:16:42,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:16:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:16:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 00:16:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:16:42,791 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:16:42,793 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:16:42,914 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:16:42,952 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:16:42,952 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:16:42,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:16:42 BoogieIcfgContainer [2023-12-03 00:16:42,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:16:42,955 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:16:42,955 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:16:42,966 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:16:42,967 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:16:42" (1/1) ... [2023-12-03 00:16:42,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:16:43,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:43,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-12-03 00:16:43,040 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-03 00:16:43,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:16:43,043 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:43,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:16:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:43,300 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 00:16:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:43,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 24 transitions. [2023-12-03 00:16:43,360 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-12-03 00:16:43,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 00:16:43,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:43,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:16:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:43,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:16:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:43,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:16:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:43,551 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 00:16:43,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-03 00:16:43,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:16:43 ImpRootNode [2023-12-03 00:16:43,586 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:16:43,587 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:16:43,587 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:16:43,587 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:16:43,587 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:16:42" (3/4) ... [2023-12-03 00:16:43,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 00:16:43,590 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:16:43,591 INFO L158 Benchmark]: Toolchain (without parser) took 2267.86ms. Allocated memory is still 148.9MB. Free memory was 110.8MB in the beginning and 100.4MB in the end (delta: 10.5MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2023-12-03 00:16:43,592 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:16:43,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1153.92ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 94.6MB in the end (delta: 15.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2023-12-03 00:16:43,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.68ms. Allocated memory is still 148.9MB. Free memory was 94.6MB in the beginning and 91.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:16:43,594 INFO L158 Benchmark]: Boogie Preprocessor took 26.13ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 89.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:16:43,594 INFO L158 Benchmark]: RCFGBuilder took 388.28ms. Allocated memory is still 148.9MB. Free memory was 89.7MB in the beginning and 75.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 00:16:43,595 INFO L158 Benchmark]: CodeCheck took 630.58ms. Allocated memory is still 148.9MB. Free memory was 75.0MB in the beginning and 100.7MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:16:43,596 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 148.9MB. Free memory was 100.7MB in the beginning and 100.4MB in the end (delta: 369.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:16:43,599 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: 0.6s, 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, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 17 mSDtfsCounter, 7 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, 0.1s 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)=13, argc=13, argv={18:31}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_10_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 \read(globalTrue) [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 \read(globalTrue) 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 0.16ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1153.92ms. Allocated memory is still 148.9MB. Free memory was 110.5MB in the beginning and 94.6MB in the end (delta: 15.9MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.68ms. Allocated memory is still 148.9MB. Free memory was 94.6MB in the beginning and 91.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.13ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 89.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.28ms. Allocated memory is still 148.9MB. Free memory was 89.7MB in the beginning and 75.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 630.58ms. Allocated memory is still 148.9MB. Free memory was 75.0MB in the beginning and 100.7MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 148.9MB. Free memory was 100.7MB in the beginning and 100.4MB in the end (delta: 369.7kB). 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 00:16:43,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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 e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:16:45,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:16:45,745 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 00:16:45,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:16:45,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:16:45,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:16:45,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:16:45,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:16:45,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:16:45,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:16:45,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:16:45,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:16:45,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:16:45,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:16:45,790 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:16:45,790 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:16:45,791 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:16:45,791 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:16:45,792 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:16:45,793 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:16:45,793 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:16:45,794 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:16:45,795 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:16:45,795 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:16:45,796 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:16:45,796 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:16:45,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:16:45,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:16:45,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:16:45,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:16:45,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:16:45,799 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:16:45,800 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:16:45,800 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:16:45,800 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:16:45,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:16:45,801 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_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6eb2df243d9c0b947249e9f29f314fc1d281e7e3424f2b455cd09857f0f0abe [2023-12-03 00:16:46,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:16:46,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:16:46,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:16:46,145 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:16:46,146 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:16:46,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-12-03 00:16:49,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:16:49,478 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:16:49,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_10_bad.i [2023-12-03 00:16:49,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data/e1ce79ffd/48434fbecaaf479882776167547e9f2b/FLAG493c4a507 [2023-12-03 00:16:49,517 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/data/e1ce79ffd/48434fbecaaf479882776167547e9f2b [2023-12-03 00:16:49,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:16:49,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:16:49,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:16:49,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:16:49,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:16:49,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:16:49" (1/1) ... [2023-12-03 00:16:49,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f7fc0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:49, skipping insertion in model container [2023-12-03 00:16:49,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:16:49" (1/1) ... [2023-12-03 00:16:49,593 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:16:50,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:16:50,411 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:16:50,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:16:50,648 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:50,649 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:50,649 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:50,649 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:50,649 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:16:50,657 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:16:50,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50 WrapperNode [2023-12-03 00:16:50,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:16:50,659 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:16:50,659 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:16:50,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:16:50,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,717 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2023-12-03 00:16:50,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:16:50,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:16:50,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:16:50,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:16:50,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:16:50,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:16:50,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:16:50,759 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:16:50,760 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:16:50" (1/1) ... [2023-12-03 00:16:50,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:16:50,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:16:50,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:16:50,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:16:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 00:16:50,840 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 00:16:50,840 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 00:16:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:16:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:16:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:16:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:16:50,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:16:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:16:50,841 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 00:16:50,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 00:16:51,020 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:16:51,022 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:16:51,184 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:16:51,240 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:16:51,240 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:16:51,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:16:51 BoogieIcfgContainer [2023-12-03 00:16:51,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:16:51,243 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:16:51,243 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:16:51,255 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:16:51,255 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:16:51" (1/1) ... [2023-12-03 00:16:51,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:16:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:51,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-12-03 00:16:51,333 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-12-03 00:16:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 00:16:51,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:51,339 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:16:51,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:16:51,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:16:51,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:16:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:51,501 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:16:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:16:51,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 00:16:51,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:16:51,577 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 00:16:51,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:16:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:16:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2023-12-03 00:16:51,629 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2023-12-03 00:16:51,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 00:16:51,630 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:16:51,630 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:16:51,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:16:51,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:16:51,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 00:16:51,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:51,840 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:16:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:52,070 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:16:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:16:52,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 00:16:52,139 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 00:16:52,141 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 00:16:52,165 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-03 00:16:52,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:16:52 ImpRootNode [2023-12-03 00:16:52,173 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:16:52,174 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:16:52,174 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:16:52,174 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:16:52,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:16:51" (3/4) ... [2023-12-03 00:16:52,176 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 00:16:52,177 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:16:52,178 INFO L158 Benchmark]: Toolchain (without parser) took 2657.51ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 41.2MB in the end (delta: 30.3MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2023-12-03 00:16:52,178 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 67.1MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:16:52,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1136.38ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 61.0MB in the end (delta: 10.1MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-12-03 00:16:52,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.00ms. Allocated memory is still 98.6MB. Free memory was 61.0MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:16:52,180 INFO L158 Benchmark]: Boogie Preprocessor took 39.53ms. Allocated memory is still 98.6MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:16:52,181 INFO L158 Benchmark]: RCFGBuilder took 483.69ms. Allocated memory is still 98.6MB. Free memory was 55.9MB in the beginning and 68.5MB in the end (delta: -12.6MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-12-03 00:16:52,181 INFO L158 Benchmark]: CodeCheck took 930.19ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 41.8MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-03 00:16:52,182 INFO L158 Benchmark]: Witness Printer took 3.48ms. Allocated memory is still 98.6MB. Free memory was 41.8MB in the beginning and 41.2MB in the end (delta: 562.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:16:52,186 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 66 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, 10 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_10_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 \read(globalTrue) [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 \read(globalTrue) 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 0.24ms. Allocated memory is still 67.1MB. Free memory is still 43.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1136.38ms. Allocated memory is still 98.6MB. Free memory was 71.1MB in the beginning and 61.0MB in the end (delta: 10.1MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.00ms. Allocated memory is still 98.6MB. Free memory was 61.0MB in the beginning and 58.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.53ms. Allocated memory is still 98.6MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.69ms. Allocated memory is still 98.6MB. Free memory was 55.9MB in the beginning and 68.5MB in the end (delta: -12.6MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * CodeCheck took 930.19ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 41.8MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.48ms. Allocated memory is still 98.6MB. Free memory was 41.8MB in the beginning and 41.2MB in the end (delta: 562.7kB). Peak memory consumption was 2.1MB. 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 00:16:52,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5acf96bd-23b2-4c1b-b6fc-5859048c2173/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