./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_12_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b --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 e73bf75f10180290498e6c1b39666c57ea963b55df36220002e3474ff808070b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:20:41,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:20:41,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 02:20:41,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 02:20:41,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 02:20:41,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:20:41,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:20:41,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:20:41,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:20:41,461 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:20:41,461 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:20:41,462 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:20:41,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:20:41,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:20:41,462 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:20:41,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:20:41,463 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 02:20:41,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 02:20:41,463 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b 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 -> e73bf75f10180290498e6c1b39666c57ea963b55df36220002e3474ff808070b [2024-12-06 02:20:41,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:20:41,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:20:41,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:20:41,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:20:41,702 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:20:41,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_12_bad.i [2024-12-06 02:20:44,317 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/6eef40c7a/0ce6610926f94e7aa847d02ca8ce0365/FLAG081fec0a0 [2024-12-06 02:20:44,655 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:20:44,656 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_12_bad.i [2024-12-06 02:20:44,673 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/6eef40c7a/0ce6610926f94e7aa847d02ca8ce0365/FLAG081fec0a0 [2024-12-06 02:20:44,909 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/6eef40c7a/0ce6610926f94e7aa847d02ca8ce0365 [2024-12-06 02:20:44,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:20:44,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:20:44,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:20:44,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:20:44,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:20:44,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:20:44" (1/1) ... [2024-12-06 02:20:44,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366b07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:44, skipping insertion in model container [2024-12-06 02:20:44,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:20:44" (1/1) ... [2024-12-06 02:20:44,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:20:45,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:20:45,540 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:20:45,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:20:45,697 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:20:45,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45 WrapperNode [2024-12-06 02:20:45,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:20:45,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:20:45,698 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:20:45,698 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:20:45,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,734 INFO L138 Inliner]: procedures = 498, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2024-12-06 02:20:45,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:20:45,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:20:45,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:20:45,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:20:45,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,743 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,747 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,752 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:20:45,753 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:20:45,753 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:20:45,753 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:20:45,754 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:45" (1/1) ... [2024-12-06 02:20:45,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:20:45,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:20:45,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:20:45,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:20:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-12-06 02:20:45,802 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-12-06 02:20:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2024-12-06 02:20:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2024-12-06 02:20:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 02:20:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 02:20:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:20:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:20:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:20:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 02:20:45,912 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:20:45,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:20:46,041 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 02:20:46,041 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:20:46,070 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:20:46,071 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 02:20:46,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:20:46 BoogieIcfgContainer [2024-12-06 02:20:46,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:20:46,072 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:20:46,072 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:20:46,081 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:20:46,081 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:20:46" (1/1) ... [2024-12-06 02:20:46,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:20:46,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:46,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 44 transitions. [2024-12-06 02:20:46,135 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-12-06 02:20:46,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 02:20:46,139 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:46,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:20:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:20:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 40 states and 51 transitions. [2024-12-06 02:20:46,417 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2024-12-06 02:20:46,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 02:20:46,418 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:46,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:20:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:46,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:20:46,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 59 transitions. [2024-12-06 02:20:46,579 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2024-12-06 02:20:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 02:20:46,580 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:20:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:20:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:46,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 47 states and 61 transitions. [2024-12-06 02:20:46,664 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2024-12-06 02:20:46,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 02:20:46,665 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:46,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 02:20:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:46,708 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:20:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:46,789 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:20:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:46,826 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-12-06 02:20:46,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:20:46 ImpRootNode [2024-12-06 02:20:46,852 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:20:46,852 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:20:46,852 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:20:46,852 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:20:46,853 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:20:46" (3/4) ... [2024-12-06 02:20:46,854 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 02:20:46,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:20:46,856 INFO L158 Benchmark]: Toolchain (without parser) took 1943.25ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 98.1MB in the end (delta: 15.4MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-12-06 02:20:46,856 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:46,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.71ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 110.5MB in the end (delta: 2.8MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2024-12-06 02:20:46,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.69ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 108.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:46,857 INFO L158 Benchmark]: Boogie Preprocessor took 17.61ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 107.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:46,858 INFO L158 Benchmark]: RCFGBuilder took 318.09ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 91.3MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 02:20:46,858 INFO L158 Benchmark]: CodeCheck took 779.75ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 98.1MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:46,858 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 98.1MB in the end (delta: 9.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:46,861 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 4 procedures, 36 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 86 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 341 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1573]: 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 fgets at line 1556. 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); [L1595] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1595] RET 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] [L1596] CALL CWE191_Integer_Underflow__int_fgets_predec_12_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] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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 globalReturnsTrueOrFalse() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() 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] COND TRUE globalReturnsTrueOrFalse() [L1573] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 783.71ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 110.5MB in the end (delta: 2.8MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.69ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 108.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.61ms. Allocated memory is still 142.6MB. Free memory was 108.2MB in the beginning and 107.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.09ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 91.3MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 779.75ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 98.1MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 98.1MB in the end (delta: 9.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 02:20:46,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b --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 e73bf75f10180290498e6c1b39666c57ea963b55df36220002e3474ff808070b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 02:20:48,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 02:20:48,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 02:20:49,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 02:20:49,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 02:20:49,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 02:20:49,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 02:20:49,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 02:20:49,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 02:20:49,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 02:20:49,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 02:20:49,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 02:20:49,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 02:20:49,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 02:20:49,011 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 02:20:49,012 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 02:20:49,012 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 02:20:49,012 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 02:20:49,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 02:20:49,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 02:20:49,012 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 02:20:49,012 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 02:20:49,013 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 02:20:49,013 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 02:20:49,013 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 02:20:49,013 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 02:20:49,013 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 02:20:49,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 02:20:49,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:20:49,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 02:20:49,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 02:20:49,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 02:20:49,014 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 02:20:49,014 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 02:20:49,014 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 02:20:49,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b 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 -> e73bf75f10180290498e6c1b39666c57ea963b55df36220002e3474ff808070b [2024-12-06 02:20:49,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 02:20:49,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 02:20:49,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 02:20:49,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 02:20:49,273 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 02:20:49,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_12_bad.i [2024-12-06 02:20:51,949 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/936266914/9f95e830196640418789eb5e771415b9/FLAG8bc32ac64 [2024-12-06 02:20:52,240 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 02:20:52,241 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_12_bad.i [2024-12-06 02:20:52,259 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/936266914/9f95e830196640418789eb5e771415b9/FLAG8bc32ac64 [2024-12-06 02:20:52,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/data/936266914/9f95e830196640418789eb5e771415b9 [2024-12-06 02:20:52,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 02:20:52,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 02:20:52,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 02:20:52,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 02:20:52,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 02:20:52,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:20:52" (1/1) ... [2024-12-06 02:20:52,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142803b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:52, skipping insertion in model container [2024-12-06 02:20:52,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 02:20:52" (1/1) ... [2024-12-06 02:20:52,316 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 02:20:53,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:20:53,053 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 02:20:53,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 02:20:53,251 INFO L204 MainTranslator]: Completed translation [2024-12-06 02:20:53,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53 WrapperNode [2024-12-06 02:20:53,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 02:20:53,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 02:20:53,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 02:20:53,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 02:20:53,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,278 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,297 INFO L138 Inliner]: procedures = 503, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2024-12-06 02:20:53,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 02:20:53,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 02:20:53,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 02:20:53,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 02:20:53,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,315 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,316 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,321 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 02:20:53,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 02:20:53,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 02:20:53,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 02:20:53,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 02:20:53,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 02:20:53,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 02:20:53,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 02:20:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-12-06 02:20:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-12-06 02:20:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2024-12-06 02:20:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2024-12-06 02:20:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 02:20:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 02:20:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 02:20:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 02:20:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 02:20:53,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 02:20:53,495 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 02:20:53,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 02:20:53,648 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-06 02:20:53,649 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 02:20:53,683 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 02:20:53,683 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 02:20:53,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:20:53 BoogieIcfgContainer [2024-12-06 02:20:53,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 02:20:53,684 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 02:20:53,684 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 02:20:53,692 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 02:20:53,692 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:20:53" (1/1) ... [2024-12-06 02:20:53,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 02:20:53,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-12-06 02:20:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-12-06 02:20:53,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 02:20:53,740 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:53,740 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 02:20:53,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 02:20:53,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 02:20:53,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 02:20:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:53,897 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 02:20:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:53,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 02:20:53,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:20:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:20:53,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 02:20:54,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:54,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2024-12-06 02:20:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2024-12-06 02:20:54,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 02:20:54,049 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:54,049 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 02:20:54,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 02:20:54,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 02:20:54,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 02:20:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:54,136 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 02:20:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:54,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-06 02:20:54,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:20:54,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:20:54,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 02:20:54,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:54,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 36 states and 47 transitions. [2024-12-06 02:20:54,177 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2024-12-06 02:20:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 02:20:54,178 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:54,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 02:20:54,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 02:20:54,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 02:20:54,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 02:20:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:54,301 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 02:20:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 02:20:54,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 02:20:54,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 02:20:54,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 02:20:54,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-06 02:20:54,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 02:20:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 38 states and 49 transitions. [2024-12-06 02:20:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2024-12-06 02:20:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 02:20:54,376 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 02:20:54,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 02:20:54,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 02:20:54,378 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 02:20:54,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 02:20:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:54,536 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:20:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:54,695 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 02:20:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 02:20:54,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-06 02:20:54,729 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-12-06 02:20:54,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 02:20:54 ImpRootNode [2024-12-06 02:20:54,756 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 02:20:54,757 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 02:20:54,757 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 02:20:54,757 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 02:20:54,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 02:20:53" (3/4) ... [2024-12-06 02:20:54,760 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 02:20:54,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 02:20:54,762 INFO L158 Benchmark]: Toolchain (without parser) took 2486.83ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 54.5MB in the end (delta: 12.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-12-06 02:20:54,763 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:54,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 975.52ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 60.1MB in the end (delta: 6.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2024-12-06 02:20:54,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.75ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 57.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:54,764 INFO L158 Benchmark]: Boogie Preprocessor took 28.13ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 55.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:54,764 INFO L158 Benchmark]: RCFGBuilder took 357.58ms. Allocated memory is still 92.3MB. Free memory was 55.6MB in the beginning and 38.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 02:20:54,765 INFO L158 Benchmark]: CodeCheck took 1071.74ms. Allocated memory is still 92.3MB. Free memory was 38.0MB in the beginning and 55.1MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:54,765 INFO L158 Benchmark]: Witness Printer took 4.68ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 54.5MB in the end (delta: 566.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 02:20:54,767 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 4 procedures, 34 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 71 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 332 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, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1573]: 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 fgets at line 1556. 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); [L1595] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1595] RET 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] [L1596] CALL CWE191_Integer_Underflow__int_fgets_predec_12_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] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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 globalReturnsTrueOrFalse() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() 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] COND TRUE globalReturnsTrueOrFalse() [L1573] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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 0.26ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 975.52ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 60.1MB in the end (delta: 6.2MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.75ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 57.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.13ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 55.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 357.58ms. Allocated memory is still 92.3MB. Free memory was 55.6MB in the beginning and 38.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1071.74ms. Allocated memory is still 92.3MB. Free memory was 38.0MB in the beginning and 55.1MB in the end (delta: -17.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.68ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 54.5MB in the end (delta: 566.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 02:20:54,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19358618-4237-4585-b4b9-5e1bbfa84068/bin/ukojak-verify-CZk0znPC7b/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