./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_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_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3 --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 dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:22:20,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:22:20,289 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-24 18:22:20,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:22:20,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:22:20,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:22:20,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:22:20,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:22:20,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:22:20,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:22:20,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:22:20,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:22:20,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:22:20,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:22:20,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:22:20,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:22:20,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:22:20,319 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:22:20,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:22:20,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:22:20,319 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:22:20,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:22:20,319 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:22:20,319 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:22:20,319 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:22:20,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:22:20,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:22:20,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:22:20,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:22:20,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:22:20,320 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:22:20,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:22:20,320 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_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3 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 -> dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e [2024-11-24 18:22:20,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:22:20,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:22:20,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:22:20,597 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:22:20,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:22:20,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-11-24 18:22:23,632 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/a9099ff62/141dadc128e44b0eb6c2525f24cb51f8/FLAG70fd4092e [2024-11-24 18:22:24,150 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:22:24,154 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-11-24 18:22:24,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/a9099ff62/141dadc128e44b0eb6c2525f24cb51f8/FLAG70fd4092e [2024-11-24 18:22:24,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/a9099ff62/141dadc128e44b0eb6c2525f24cb51f8 [2024-11-24 18:22:24,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:22:24,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:22:24,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:22:24,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:22:24,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:22:24,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:22:24" (1/1) ... [2024-11-24 18:22:24,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc67080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:24, skipping insertion in model container [2024-11-24 18:22:24,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:22:24" (1/1) ... [2024-11-24 18:22:24,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:22:25,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:22:25,352 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:22:25,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:22:25,571 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:22:25,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25 WrapperNode [2024-11-24 18:22:25,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:22:25,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:22:25,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:22:25,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:22:25,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,642 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-11-24 18:22:25,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:22:25,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:22:25,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:22:25,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:22:25,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,669 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:22:25,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:22:25,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:22:25,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:22:25,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:25" (1/1) ... [2024-11-24 18:22:25,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:22:25,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:22:25,732 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:22:25,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:22:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 18:22:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 18:22:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:22:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:22:25,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:22:25,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:22:25,909 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:22:25,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:22:26,047 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-24 18:22:26,047 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:22:26,100 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:22:26,100 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 18:22:26,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:26 BoogieIcfgContainer [2024-11-24 18:22:26,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:22:26,102 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:22:26,102 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:22:26,110 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:22:26,110 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:26" (1/1) ... [2024-11-24 18:22:26,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:22:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:22:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-11-24 18:22:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-24 18:22:26,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:22:26,167 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:22:26,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:22:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:22:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:22:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:22:26,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 21 transitions. [2024-11-24 18:22:26,405 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-24 18:22:26,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-24 18:22:26,406 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:22:26,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:22:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:26,462 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:22:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:26,593 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:22:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:26,631 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-24 18:22:26,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:22:26 ImpRootNode [2024-11-24 18:22:26,666 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:22:26,668 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:22:26,668 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:22:26,668 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:22:26,669 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:26" (3/4) ... [2024-11-24 18:22:26,671 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 18:22:26,672 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:22:26,673 INFO L158 Benchmark]: Toolchain (without parser) took 2463.56ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 40.0MB in the end (delta: 49.4MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-11-24 18:22:26,676 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:22:26,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1361.77ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 83.1MB in the end (delta: 6.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-24 18:22:26,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.45ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 80.2MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:22:26,677 INFO L158 Benchmark]: Boogie Preprocessor took 42.44ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.6MB in the end (delta: 581.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:22:26,678 INFO L158 Benchmark]: RCFGBuilder took 413.27ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 65.4MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:22:26,678 INFO L158 Benchmark]: CodeCheck took 565.24ms. Allocated memory is still 117.4MB. Free memory was 65.4MB in the beginning and 40.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 18:22:26,678 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:22:26,681 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, 18 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, ConComCheckerStatistics: 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 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); [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_predec_13_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 GLOBAL_CONST_FIVE==5 [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) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] --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 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1361.77ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 83.1MB in the end (delta: 6.1MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.45ms. Allocated memory is still 117.4MB. Free memory was 83.1MB in the beginning and 80.2MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.44ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 79.6MB in the end (delta: 581.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 413.27ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 65.4MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 565.24ms. Allocated memory is still 117.4MB. Free memory was 65.4MB in the beginning and 40.6MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 18:22:26,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/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_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3 --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 dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:22:29,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:22:29,918 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-24 18:22:29,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:22:29,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:22:29,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:22:29,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:22:29,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:22:29,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:22:29,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:22:29,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:22:29,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:22:29,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:22:29,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:22:29,979 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 18:22:29,979 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:22:29,980 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:22:29,980 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 18:22:29,981 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-24 18:22:29,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:22:29,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:22:29,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:22:29,981 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:22:29,981 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:22:29,981 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-24 18:22:29,981 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 18:22:29,981 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-24 18:22:29,982 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_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3 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 -> dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e [2024-11-24 18:22:30,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:22:30,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:22:30,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:22:30,389 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:22:30,389 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:22:30,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-11-24 18:22:33,949 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/8301a6b9d/e4cdf65b839e4f13b1e963ac7fcc190a/FLAG0bcfa0924 [2024-11-24 18:22:34,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:22:34,548 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-11-24 18:22:34,587 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/8301a6b9d/e4cdf65b839e4f13b1e963ac7fcc190a/FLAG0bcfa0924 [2024-11-24 18:22:34,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/data/8301a6b9d/e4cdf65b839e4f13b1e963ac7fcc190a [2024-11-24 18:22:34,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:22:34,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:22:34,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:22:34,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:22:34,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:22:34,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:22:34" (1/1) ... [2024-11-24 18:22:34,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645c1be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:34, skipping insertion in model container [2024-11-24 18:22:34,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:22:34" (1/1) ... [2024-11-24 18:22:34,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:22:35,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:22:35,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:22:36,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:22:36,435 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:22:36,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36 WrapperNode [2024-11-24 18:22:36,436 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:22:36,437 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:22:36,437 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:22:36,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:22:36,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,528 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-11-24 18:22:36,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:22:36,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:22:36,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:22:36,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:22:36,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,570 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,588 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:22:36,592 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:22:36,592 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:22:36,593 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:22:36,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:36" (1/1) ... [2024-11-24 18:22:36,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:22:36,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:22:36,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:22:36,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:22:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 18:22:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 18:22:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-24 18:22:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:22:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:22:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:22:36,959 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:22:36,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:22:37,178 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-24 18:22:37,178 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:22:37,227 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:22:37,228 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 18:22:37,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:37 BoogieIcfgContainer [2024-11-24 18:22:37,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:22:37,229 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:22:37,229 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:22:37,254 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:22:37,255 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:37" (1/1) ... [2024-11-24 18:22:37,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:22:37,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:22:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-11-24 18:22:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-24 18:22:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:22:37,336 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:22:37,341 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 18:22:37,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-24 18:22:37,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 18:22:37,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-24 18:22:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:22:37,531 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-24 18:22:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:22:37,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 18:22:37,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 18:22:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:22:37,642 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-24 18:22:37,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-24 18:22:37,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:22:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 26 transitions. [2024-11-24 18:22:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-11-24 18:22:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-24 18:22:37,729 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:22:37,730 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 18:22:37,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-24 18:22:37,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 18:22:37,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-24 18:22:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:37,935 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:22:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:38,076 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:22:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:22:38,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-24 18:22:38,132 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-24 18:22:38,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:22:38 ImpRootNode [2024-11-24 18:22:38,172 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:22:38,179 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:22:38,180 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:22:38,180 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:22:38,181 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:37" (3/4) ... [2024-11-24 18:22:38,184 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 18:22:38,185 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:22:38,189 INFO L158 Benchmark]: Toolchain (without parser) took 3560.92ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 52.2MB in the end (delta: 4.3MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-11-24 18:22:38,190 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:22:38,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1809.13ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 50.2MB in the end (delta: 6.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-11-24 18:22:38,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.26ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 47.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:22:38,191 INFO L158 Benchmark]: Boogie Preprocessor took 57.25ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 45.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:22:38,191 INFO L158 Benchmark]: RCFGBuilder took 636.24ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 29.6MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:22:38,195 INFO L158 Benchmark]: CodeCheck took 942.67ms. Allocated memory is still 83.9MB. Free memory was 29.6MB in the beginning and 28.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2024-11-24 18:22:38,196 INFO L158 Benchmark]: Witness Printer took 5.83ms. Allocated memory is still 83.9MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 6.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:22:38,198 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 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, ConComCheckerStatistics: 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 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); [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_predec_13_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 GLOBAL_CONST_FIVE==5 [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) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] --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 0.43ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1809.13ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 50.2MB in the end (delta: 6.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.26ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 47.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.25ms. Allocated memory is still 83.9MB. Free memory was 47.4MB in the beginning and 45.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 636.24ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 29.6MB in the end (delta: 16.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 942.67ms. Allocated memory is still 83.9MB. Free memory was 29.6MB in the beginning and 28.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 5.83ms. Allocated memory is still 83.9MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 6.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 18:22:38,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e50111b-f32a-4582-aee0-7769fbbe12e4/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample