./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/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_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/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_5d21268a-9d48-4374-b749-aeab162d3bc4/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 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:36:44,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:36:44,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 01:36:44,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:36:44,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:36:44,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:36:44,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:36:44,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:36:44,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:36:44,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:36:44,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:36:44,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:36:44,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:36:44,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:36:44,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:36:44,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:36:44,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:36:44,111 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:36:44,111 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:36:44,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:36:44,112 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:36:44,113 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:36:44,114 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:36:44,114 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:36:44,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:36:44,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:36:44,115 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:36:44,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:36:44,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:36:44,117 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:36:44,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:36:44,117 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:36:44,118 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_5d21268a-9d48-4374-b749-aeab162d3bc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 [2023-12-03 01:36:44,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:36:44,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:36:44,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:36:44,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:36:44,378 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:36:44,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-12-03 01:36:47,063 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:36:47,374 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:36:47,375 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-12-03 01:36:47,398 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data/975026752/b435310010fb41739a80c0e3bd99b01b/FLAG4b8cdc748 [2023-12-03 01:36:47,410 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data/975026752/b435310010fb41739a80c0e3bd99b01b [2023-12-03 01:36:47,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:36:47,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:36:47,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:36:47,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:36:47,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:36:47,418 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:36:47" (1/1) ... [2023-12-03 01:36:47,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eff45ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:47, skipping insertion in model container [2023-12-03 01:36:47,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:36:47" (1/1) ... [2023-12-03 01:36:47,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:36:48,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:36:48,190 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:36:48,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:36:48,473 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:48,473 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:48,473 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:48,473 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:48,473 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:48,481 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:36:48,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48 WrapperNode [2023-12-03 01:36:48,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:36:48,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:36:48,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:36:48,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:36:48,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,546 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2023-12-03 01:36:48,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:36:48,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:36:48,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:36:48,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:36:48,558 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,572 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:36:48,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:36:48,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:36:48,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:36:48,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:36:48,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:36:48,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:36:48,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:36:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:36:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:36:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:36:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:36:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 01:36:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:36:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:36:48,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:36:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:36:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:36:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:36:48,778 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:36:48,780 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:36:48,891 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:36:48,923 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:36:48,924 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:36:48,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:36:48 BoogieIcfgContainer [2023-12-03 01:36:48,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:36:48,926 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:36:48,926 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:36:48,934 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:36:48,934 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:36:48" (1/1) ... [2023-12-03 01:36:48,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:36:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:36:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-12-03 01:36:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-03 01:36:48,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:36:48,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:36:48,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:36:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:36:49,193 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 01:36:49,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:36:49,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 22 transitions. [2023-12-03 01:36:49,234 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-12-03 01:36:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:36:49,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:36:49,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:36:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:49,283 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:36:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:49,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:36:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:49,407 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 01:36:49,431 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 01:36:49,435 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated [2023-12-03 01:36:49,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:36:49 ImpRootNode [2023-12-03 01:36:49,439 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:36:49,440 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:36:49,440 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:36:49,440 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:36:49,441 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:36:48" (3/4) ... [2023-12-03 01:36:49,443 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:36:49,444 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:36:49,445 INFO L158 Benchmark]: Toolchain (without parser) took 2031.62ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 108.5MB in the beginning and 113.0MB in the end (delta: -4.5MB). Peak memory consumption was 52.0MB. Max. memory is 16.1GB. [2023-12-03 01:36:49,446 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:36:49,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1067.99ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 108.3MB in the beginning and 159.1MB in the end (delta: -50.8MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. [2023-12-03 01:36:49,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.07ms. Allocated memory is still 205.5MB. Free memory was 159.1MB in the beginning and 155.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:36:49,448 INFO L158 Benchmark]: Boogie Preprocessor took 28.69ms. Allocated memory is still 205.5MB. Free memory was 155.9MB in the beginning and 153.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:36:49,448 INFO L158 Benchmark]: RCFGBuilder took 348.60ms. Allocated memory is still 205.5MB. Free memory was 153.9MB in the beginning and 139.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 01:36:49,449 INFO L158 Benchmark]: CodeCheck took 513.25ms. Allocated memory is still 205.5MB. Free memory was 139.2MB in the beginning and 113.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-03 01:36:49,449 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 205.5MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:36:49,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1569]: 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)=25, argc=25, argv={27:26}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_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 [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1067.99ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 108.3MB in the beginning and 159.1MB in the end (delta: -50.8MB). Peak memory consumption was 68.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.07ms. Allocated memory is still 205.5MB. Free memory was 159.1MB in the beginning and 155.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.69ms. Allocated memory is still 205.5MB. Free memory was 155.9MB in the beginning and 153.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.60ms. Allocated memory is still 205.5MB. Free memory was 153.9MB in the beginning and 139.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 513.25ms. Allocated memory is still 205.5MB. Free memory was 139.2MB in the beginning and 113.0MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 205.5MB. Free memory is still 113.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet103 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 01:36:49,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/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_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/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_5d21268a-9d48-4374-b749-aeab162d3bc4/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 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:36:51,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:36:51,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 01:36:51,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:36:51,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:36:51,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:36:51,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:36:51,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:36:51,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:36:51,518 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:36:51,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:36:51,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:36:51,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:36:51,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:36:51,520 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:36:51,521 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:36:51,521 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 01:36:51,522 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:36:51,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:36:51,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:36:51,523 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:36:51,524 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:36:51,525 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:36:51,525 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:36:51,526 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:36:51,526 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:36:51,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:36:51,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:36:51,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:36:51,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:36:51,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:36:51,529 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:36:51,529 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:36:51,529 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:36:51,530 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:36:51,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:36:51,530 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_5d21268a-9d48-4374-b749-aeab162d3bc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 [2023-12-03 01:36:51,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:36:51,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:36:51,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:36:51,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:36:51,828 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:36:51,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-12-03 01:36:54,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:36:54,934 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:36:54,934 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-12-03 01:36:54,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data/a8d73869a/230c452516774315b1592e7c9dc3abb7/FLAG85a797092 [2023-12-03 01:36:54,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/data/a8d73869a/230c452516774315b1592e7c9dc3abb7 [2023-12-03 01:36:54,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:36:54,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:36:54,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:36:54,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:36:54,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:36:54,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:36:54" (1/1) ... [2023-12-03 01:36:54,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b64d26e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:54, skipping insertion in model container [2023-12-03 01:36:54,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:36:54" (1/1) ... [2023-12-03 01:36:55,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:36:55,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:36:55,845 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:36:55,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:36:56,075 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:56,075 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:56,075 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:56,075 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:56,076 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:36:56,083 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:36:56,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56 WrapperNode [2023-12-03 01:36:56,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:36:56,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:36:56,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:36:56,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:36:56,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,152 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-12-03 01:36:56,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:36:56,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:36:56,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:36:56,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:36:56,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,165 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,165 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,181 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:36:56,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:36:56,189 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:36:56,189 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:36:56,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:36:56,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:36:56,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:36:56,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:36:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 01:36:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 01:36:56,258 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 01:36:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:36:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:36:56,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:36:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:36:56,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:36:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:36:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 01:36:56,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 01:36:56,409 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:36:56,410 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:36:56,542 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:36:56,583 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:36:56,583 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 01:36:56,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:36:56 BoogieIcfgContainer [2023-12-03 01:36:56,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:36:56,586 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:36:56,586 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:36:56,593 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:36:56,593 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:36:56" (1/1) ... [2023-12-03 01:36:56,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:36:56,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:36:56,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-12-03 01:36:56,653 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-03 01:36:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:36:56,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:36:56,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:36:56,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:36:56,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:36:56,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:36:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:36:56,785 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:36:56,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:36:56,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 01:36:56,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:36:56,857 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 01:36:56,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:36:56,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:36:56,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 27 transitions. [2023-12-03 01:36:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-03 01:36:56,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:36:56,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:36:56,931 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:36:56,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:36:56,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:36:56,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:36:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:57,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:36:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:57,266 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 01:36:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 01:36:57,311 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:36:57,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:36:57,313 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 01:36:57,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-03 01:36:57,338 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated [2023-12-03 01:36:57,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:36:57 ImpRootNode [2023-12-03 01:36:57,342 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:36:57,342 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:36:57,342 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:36:57,342 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:36:57,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:36:56" (3/4) ... [2023-12-03 01:36:57,344 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 01:36:57,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:36:57,346 INFO L158 Benchmark]: Toolchain (without parser) took 2369.35ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 59.2MB in the end (delta: 14.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-12-03 01:36:57,346 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:36:57,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1106.12ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 39.3MB in the end (delta: 34.2MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2023-12-03 01:36:57,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.26ms. Allocated memory is still 100.7MB. Free memory was 39.3MB in the beginning and 72.2MB in the end (delta: -32.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-12-03 01:36:57,348 INFO L158 Benchmark]: Boogie Preprocessor took 35.58ms. Allocated memory is still 100.7MB. Free memory was 72.2MB in the beginning and 70.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:36:57,349 INFO L158 Benchmark]: RCFGBuilder took 396.03ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 52.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 01:36:57,349 INFO L158 Benchmark]: CodeCheck took 756.02ms. Allocated memory is still 100.7MB. Free memory was 52.9MB in the beginning and 59.9MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:36:57,350 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 100.7MB. Free memory was 59.9MB in the beginning and 59.2MB in the end (delta: 726.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:36:57,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1569]: 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_postdec_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 [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1106.12ms. Allocated memory is still 100.7MB. Free memory was 73.5MB in the beginning and 39.3MB in the end (delta: 34.2MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.26ms. Allocated memory is still 100.7MB. Free memory was 39.3MB in the beginning and 72.2MB in the end (delta: -32.8MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.58ms. Allocated memory is still 100.7MB. Free memory was 72.2MB in the beginning and 70.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.03ms. Allocated memory is still 100.7MB. Free memory was 70.1MB in the beginning and 52.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 756.02ms. Allocated memory is still 100.7MB. Free memory was 52.9MB in the beginning and 59.9MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 100.7MB. Free memory was 59.9MB in the beginning and 59.2MB in the end (delta: 726.7kB). 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~nondet101 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 01:36:57,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d21268a-9d48-4374-b749-aeab162d3bc4/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