./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_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_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:37:41,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:37:41,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 15:37:41,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:37:41,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:37:41,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:37:41,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:37:41,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:37:41,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:37:41,162 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:37:41,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:37:41,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:37:41,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:37:41,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:37:41,163 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:37:41,164 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:37:41,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:37:41,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:37:41,165 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:37:41,165 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2024-12-02 15:37:41,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:37:41,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:37:41,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:37:41,422 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:37:41,423 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:37:41,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-12-02 15:37:44,133 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/4bb3132c5/24979682fbbd49e18974e8b2a1c16477/FLAG6a3d05148 [2024-12-02 15:37:44,462 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:37:44,463 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-12-02 15:37:44,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/4bb3132c5/24979682fbbd49e18974e8b2a1c16477/FLAG6a3d05148 [2024-12-02 15:37:44,713 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/4bb3132c5/24979682fbbd49e18974e8b2a1c16477 [2024-12-02 15:37:44,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:37:44,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:37:44,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:37:44,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:37:44,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:37:44,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:37:44" (1/1) ... [2024-12-02 15:37:44,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36200891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:44, skipping insertion in model container [2024-12-02 15:37:44,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:37:44" (1/1) ... [2024-12-02 15:37:44,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:37:45,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:37:45,966 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:37:46,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:37:46,239 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:37:46,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46 WrapperNode [2024-12-02 15:37:46,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:37:46,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:37:46,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:37:46,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:37:46,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,265 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,283 INFO L138 Inliner]: procedures = 936, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-12-02 15:37:46,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:37:46,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:37:46,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:37:46,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:37:46,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,302 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-12-02 15:37:46,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,307 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:37:46,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:37:46,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:37:46,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:37:46,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (1/1) ... [2024-12-02 15:37:46,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:37:46,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:37:46,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:37:46,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:37:46,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:37:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:37:46,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:37:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 15:37:46,358 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 15:37:46,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:37:46,471 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:37:46,472 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:37:46,566 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-02 15:37:46,566 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:37:46,575 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:37:46,575 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 15:37:46,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:46 BoogieIcfgContainer [2024-12-02 15:37:46,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:37:46,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:37:46,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:37:46,582 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:37:46,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:37:44" (1/3) ... [2024-12-02 15:37:46,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36387247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:46, skipping insertion in model container [2024-12-02 15:37:46,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:46" (2/3) ... [2024-12-02 15:37:46,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36387247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:46, skipping insertion in model container [2024-12-02 15:37:46,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:46" (3/3) ... [2024-12-02 15:37:46,584 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-12-02 15:37:46,599 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:37:46,600 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 15:37:46,647 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:37:46,657 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6471f2c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:37:46,657 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 15:37:46,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 15:37:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 15:37:46,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:37:46,667 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:37:46,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 15:37:46,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:37:46,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2024-12-02 15:37:46,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:37:46,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112019066] [2024-12-02 15:37:46,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:37:46,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:37:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:37:46,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:37:46,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:37:46,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112019066] [2024-12-02 15:37:46,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112019066] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:37:46,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:37:46,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 15:37:46,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375653702] [2024-12-02 15:37:46,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:37:46,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:37:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:37:46,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:37:46,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:37:46,881 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 15:37:46,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:37:46,892 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2024-12-02 15:37:46,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:37:46,893 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-12-02 15:37:46,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:37:46,897 INFO L225 Difference]: With dead ends: 22 [2024-12-02 15:37:46,898 INFO L226 Difference]: Without dead ends: 14 [2024-12-02 15:37:46,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:37:46,902 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:37:46,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:37:46,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-12-02 15:37:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-12-02 15:37:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 15:37:46,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-12-02 15:37:46,928 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2024-12-02 15:37:46,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:37:46,936 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-12-02 15:37:46,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 15:37:46,936 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-02 15:37:46,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 15:37:46,937 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:37:46,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:37:46,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:37:46,938 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 15:37:46,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:37:46,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2024-12-02 15:37:46,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:37:46,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640083165] [2024-12-02 15:37:46,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:37:46,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:37:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 15:37:46,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863975434] [2024-12-02 15:37:46,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:37:46,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:37:46,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:37:46,992 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:37:46,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:37:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:37:47,098 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:37:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:37:47,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 15:37:47,133 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:37:47,134 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 15:37:47,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 15:37:47,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:37:47,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:37:47,339 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 15:37:47,358 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:37:47,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:37:47 BoogieIcfgContainer [2024-12-02 15:37:47,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:37:47,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:37:47,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:37:47,362 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:37:47,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:46" (3/4) ... [2024-12-02 15:37:47,365 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 15:37:47,366 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:37:47,366 INFO L158 Benchmark]: Toolchain (without parser) took 2649.79ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 92.0MB in the end (delta: 20.6MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2024-12-02 15:37:47,367 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:47,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1521.79ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 89.5MB in the end (delta: 23.1MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2024-12-02 15:37:47,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.65ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 86.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:47,368 INFO L158 Benchmark]: Boogie Preprocessor took 26.86ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 84.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:47,368 INFO L158 Benchmark]: RCFGBuilder took 263.80ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 72.0MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:37:47,368 INFO L158 Benchmark]: TraceAbstraction took 783.71ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 92.0MB in the end (delta: -20.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:47,369 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 9.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:47,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1521.79ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 89.5MB in the end (delta: 23.1MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.65ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 86.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.86ms. Allocated memory is still 142.6MB. Free memory was 85.8MB in the beginning and 84.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 263.80ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 72.0MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 783.71ms. Allocated memory is still 142.6MB. Free memory was 71.3MB in the beginning and 92.0MB in the end (delta: -20.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 92.0MB in the end (delta: 9.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840, overapproximation of fgets at line 1838. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1859] 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) [L1859] 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] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] 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] [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1848] int dataCopy = data; [L1849] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] data * 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] - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 15:37:47,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:37:49,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:37:49,521 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-12-02 15:37:49,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:37:49,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:37:49,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-12-02 15:37:49,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:37:49,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:37:49,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:37:49,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:37:49,554 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:37:49,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:37:49,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:37:49,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:37:49,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:37:49,555 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:37:49,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:37:49,555 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:37:49,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:37:49,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:37:49,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:37:49,556 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:37:49,556 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:37:49,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:37:49,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:37:49,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:37:49,558 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2024-12-02 15:37:49,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:37:49,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:37:49,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:37:49,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:37:49,823 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:37:49,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-12-02 15:37:52,584 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/4d0f98202/8fbd7dbb01b244148fb00d9e67bcc3a1/FLAG6d06038f8 [2024-12-02 15:37:52,905 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:37:52,905 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-12-02 15:37:52,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/4d0f98202/8fbd7dbb01b244148fb00d9e67bcc3a1/FLAG6d06038f8 [2024-12-02 15:37:52,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/data/4d0f98202/8fbd7dbb01b244148fb00d9e67bcc3a1 [2024-12-02 15:37:52,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:37:52,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:37:52,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:37:52,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:37:52,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:37:52,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:37:52" (1/1) ... [2024-12-02 15:37:52,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0f055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:52, skipping insertion in model container [2024-12-02 15:37:52,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:37:52" (1/1) ... [2024-12-02 15:37:52,999 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:37:54,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:37:54,260 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:37:54,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:37:54,560 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:37:54,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54 WrapperNode [2024-12-02 15:37:54,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:37:54,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:37:54,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:37:54,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:37:54,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,613 INFO L138 Inliner]: procedures = 941, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-12-02 15:37:54,613 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:37:54,613 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:37:54,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:37:54,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:37:54,623 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,626 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,640 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-12-02 15:37:54,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,640 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,648 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,651 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:37:54,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:37:54,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:37:54,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:37:54,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (1/1) ... [2024-12-02 15:37:54,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:37:54,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:37:54,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:37:54,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:37:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:37:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:37:54,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:37:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 15:37:54,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 15:37:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 15:37:54,873 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:37:54,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:37:56,905 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-02 15:37:56,906 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:37:56,915 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:37:56,915 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 15:37:56,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:56 BoogieIcfgContainer [2024-12-02 15:37:56,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:37:56,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:37:56,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:37:56,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:37:56,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:37:52" (1/3) ... [2024-12-02 15:37:56,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc129a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:56, skipping insertion in model container [2024-12-02 15:37:56,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:37:54" (2/3) ... [2024-12-02 15:37:56,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc129a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:56, skipping insertion in model container [2024-12-02 15:37:56,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:56" (3/3) ... [2024-12-02 15:37:56,927 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-12-02 15:37:56,944 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:37:56,945 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 15:37:56,995 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:37:57,004 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f4579ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:37:57,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 15:37:57,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 15:37:57,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 15:37:57,013 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:37:57,014 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:37:57,014 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 15:37:57,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:37:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2024-12-02 15:37:57,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 15:37:57,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164476996] [2024-12-02 15:37:57,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:37:57,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:37:57,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:37:57,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:37:57,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:37:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:37:57,460 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 15:37:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 15:37:58,378 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 15:37:58,380 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 15:37:58,381 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 15:37:58,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 15:37:58,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:37:58,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:37:58,587 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 15:37:58,607 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:37:58,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:37:58 BoogieIcfgContainer [2024-12-02 15:37:58,610 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:37:58,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:37:58,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:37:58,611 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:37:58,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:56" (3/4) ... [2024-12-02 15:37:58,614 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 15:37:58,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:37:58,616 INFO L158 Benchmark]: Toolchain (without parser) took 5666.04ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 65.2MB in the beginning and 81.6MB in the end (delta: -16.5MB). Peak memory consumption was 62.4MB. Max. memory is 16.1GB. [2024-12-02 15:37:58,616 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:58,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1610.05ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 64.9MB in the beginning and 121.8MB in the end (delta: -56.8MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2024-12-02 15:37:58,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.95ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 118.0MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:37:58,617 INFO L158 Benchmark]: Boogie Preprocessor took 44.30ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 115.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:58,618 INFO L158 Benchmark]: RCFGBuilder took 2257.41ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 100.6MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:37:58,618 INFO L158 Benchmark]: TraceAbstraction took 1690.91ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 81.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 15:37:58,618 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 167.8MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:37:58,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1610.05ms. Allocated memory was 92.3MB in the beginning and 167.8MB in the end (delta: 75.5MB). Free memory was 64.9MB in the beginning and 121.8MB in the end (delta: -56.8MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.95ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 118.0MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.30ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 115.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2257.41ms. Allocated memory is still 167.8MB. Free memory was 115.6MB in the beginning and 100.6MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1690.91ms. Allocated memory is still 167.8MB. Free memory was 100.1MB in the beginning and 81.6MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 167.8MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840, overapproximation of fgets at line 1838. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1859] 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) [L1859] 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] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] 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] [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1848] int dataCopy = data; [L1849] int data = dataCopy; 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] [L1851] data * 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] - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 15:37:58,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406f3912-ea38-4436-a200-cf455e5d1e74/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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