./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_52_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC --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 3135e8c6758499d8c104b4505b2fe7ef12fcc55aa500301327caff1a32dcb551 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:07:57,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:07:57,737 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 02:07:57,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:07:57,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:07:57,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:07:57,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:07:57,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:07:57,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:07:57,787 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:07:57,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:07:57,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:07:57,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:07:57,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:07:57,789 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:07:57,790 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:07:57,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:07:57,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:07:57,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:07:57,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:07:57,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:07:57,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:07:57,791 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 02:07:57,791 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 02:07:57,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:07:57,792 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:07:57,792 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:07:57,792 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:07:57,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:07:57,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:07:57,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:07:57,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:07:57,793 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:07:57,794 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:07:57,794 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:07:57,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:07:57,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:07:57,794 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:07:57,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:07:57,795 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_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC 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 -> 3135e8c6758499d8c104b4505b2fe7ef12fcc55aa500301327caff1a32dcb551 [2024-11-24 02:07:58,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:07:58,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:07:58,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:07:58,175 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:07:58,175 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:07:58,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_52_bad.i [2024-11-24 02:08:01,196 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/bfaeaf574/5d889399af7742a4a241d864d6861f66/FLAGc2be4757b [2024-11-24 02:08:01,757 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:08:01,761 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_52_bad.i [2024-11-24 02:08:01,802 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/bfaeaf574/5d889399af7742a4a241d864d6861f66/FLAGc2be4757b [2024-11-24 02:08:01,818 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/bfaeaf574/5d889399af7742a4a241d864d6861f66 [2024-11-24 02:08:01,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:08:01,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:08:01,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:08:01,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:08:01,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:08:01,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:08:01" (1/1) ... [2024-11-24 02:08:01,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f32b08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:01, skipping insertion in model container [2024-11-24 02:08:01,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:08:01" (1/1) ... [2024-11-24 02:08:01,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:08:03,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:08:03,835 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:08:03,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:08:04,258 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:08:04,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04 WrapperNode [2024-11-24 02:08:04,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:08:04,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:08:04,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:08:04,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:08:04,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,319 INFO L138 Inliner]: procedures = 938, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 62 [2024-11-24 02:08:04,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:08:04,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:08:04,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:08:04,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:08:04,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,333 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,347 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]. [2024-11-24 02:08:04,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,353 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,356 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:08:04,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:08:04,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:08:04,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:08:04,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (1/1) ... [2024-11-24 02:08:04,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:08:04,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:08:04,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:08:04,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:08:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:08:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:08:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:08:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 02:08:04,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 02:08:04,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:08:04,559 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:08:04,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:08:04,698 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-24 02:08:04,699 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:08:04,709 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:08:04,709 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 02:08:04,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:04 BoogieIcfgContainer [2024-11-24 02:08:04,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:08:04,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:08:04,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:08:04,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:08:04,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:08:01" (1/3) ... [2024-11-24 02:08:04,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2b5b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:08:04, skipping insertion in model container [2024-11-24 02:08:04,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:04" (2/3) ... [2024-11-24 02:08:04,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b2b5b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:08:04, skipping insertion in model container [2024-11-24 02:08:04,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:04" (3/3) ... [2024-11-24 02:08:04,722 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_52_bad.i [2024-11-24 02:08:04,741 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:08:04,742 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_52_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-24 02:08:04,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:08:04,816 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;@7247344, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:08:04,816 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 02:08:04,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) [2024-11-24 02:08:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 02:08:04,827 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:04,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:04,829 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 02:08:04,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:04,834 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2024-11-24 02:08:04,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:04,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469219861] [2024-11-24 02:08:04,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:04,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:08:05,091 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 02:08:05,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:08:05,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469219861] [2024-11-24 02:08:05,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469219861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:08:05,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:08:05,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 02:08:05,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940505334] [2024-11-24 02:08:05,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:08:05,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:08:05,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:08:05,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:08:05,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:08:05,143 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) [2024-11-24 02:08:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:08:05,157 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-24 02:08:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:08:05,159 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 [2024-11-24 02:08:05,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:08:05,167 INFO L225 Difference]: With dead ends: 24 [2024-11-24 02:08:05,168 INFO L226 Difference]: Without dead ends: 14 [2024-11-24 02:08:05,172 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 [2024-11-24 02:08:05,178 INFO L435 NwaCegarLoop]: 26 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, 26 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 [2024-11-24 02:08:05,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:08:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-24 02:08:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-24 02:08:05,216 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) [2024-11-24 02:08:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-11-24 02:08:05,222 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2024-11-24 02:08:05,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:08:05,225 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-24 02:08:05,225 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) [2024-11-24 02:08:05,226 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-24 02:08:05,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 02:08:05,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:05,230 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:05,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 02:08:05,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 02:08:05,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:05,231 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2024-11-24 02:08:05,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:08:05,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481265776] [2024-11-24 02:08:05,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:05,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:08:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 02:08:05,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1233903174] [2024-11-24 02:08:05,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:05,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:08:05,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:08:05,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:08:05,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:08:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:08:05,526 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:08:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:08:05,582 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 02:08:05,582 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:08:05,584 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 02:08:05,587 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 02:08:05,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:08:05,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:08:05,794 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 02:08:05,814 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:08:05,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:08:05 BoogieIcfgContainer [2024-11-24 02:08:05,818 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:08:05,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:08:05,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:08:05,819 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:08:05,820 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:04" (3/4) ... [2024-11-24 02:08:05,822 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 02:08:05,823 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:08:05,825 INFO L158 Benchmark]: Toolchain (without parser) took 4002.06ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 89.5MB in the beginning and 225.2MB in the end (delta: -135.7MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2024-11-24 02:08:05,825 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:08:05,826 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2435.93ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 89.1MB in the beginning and 283.9MB in the end (delta: -194.8MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2024-11-24 02:08:05,826 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.56ms. Allocated memory is still 352.3MB. Free memory was 283.9MB in the beginning and 280.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:08:05,826 INFO L158 Benchmark]: Boogie Preprocessor took 40.62ms. Allocated memory is still 352.3MB. Free memory was 280.5MB in the beginning and 278.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:08:05,827 INFO L158 Benchmark]: RCFGBuilder took 347.74ms. Allocated memory is still 352.3MB. Free memory was 278.8MB in the beginning and 263.7MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 02:08:05,827 INFO L158 Benchmark]: TraceAbstraction took 1105.24ms. Allocated memory is still 352.3MB. Free memory was 263.1MB in the beginning and 225.2MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-24 02:08:05,828 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 352.3MB. Free memory is still 225.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:08:05,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2435.93ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 89.1MB in the beginning and 283.9MB in the end (delta: -194.8MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.56ms. Allocated memory is still 352.3MB. Free memory was 283.9MB in the beginning and 280.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.62ms. Allocated memory is still 352.3MB. Free memory was 280.5MB in the beginning and 278.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 347.74ms. Allocated memory is still 352.3MB. Free memory was 278.8MB in the beginning and 263.7MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1105.24ms. Allocated memory is still 352.3MB. Free memory was 263.1MB in the beginning and 225.2MB in the end (delta: 38.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 352.3MB. Free memory is still 225.2MB. 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: 1866]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1841, overapproximation of fgets at line 1839. 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] [L1853] 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) [L1853] 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] [L1854] CALL CWE190_Integer_Overflow__int_fgets_square_52_bad() [L1835] int data; [L1836] data = 0 [L1838] 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] [L1839] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1841] data = atoi(inputBuffer) [L1848] CALL CWE190_Integer_Overflow__int_fgets_square_52b_badSink(data) [L1861] CALL CWE190_Integer_Overflow__int_fgets_square_52c_badSink(data) [L1866] 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: 1866]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 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, 26 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=24occurred 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 [2024-11-24 02:08:05,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/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_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC --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 3135e8c6758499d8c104b4505b2fe7ef12fcc55aa500301327caff1a32dcb551 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:08:08,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:08:08,781 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-24 02:08:08,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:08:08,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:08:08,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-24 02:08:08,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:08:08,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:08:08,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:08:08,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:08:08,864 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:08:08,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:08:08,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:08:08,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:08:08,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:08:08,865 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:08:08,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:08:08,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:08:08,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:08:08,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:08:08,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:08:08,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:08:08,869 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 02:08:08,869 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 02:08:08,869 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 02:08:08,869 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 02:08:08,870 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 02:08:08,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:08:08,870 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:08:08,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:08:08,870 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:08:08,870 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:08:08,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:08:08,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:08:08,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:08:08,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:08:08,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:08:08,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:08:08,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:08:08,871 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:08:08,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:08:08,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:08:08,872 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:08:08,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:08:08,872 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 02:08:08,872 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 02:08:08,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:08:08,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:08:08,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:08:08,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:08:08,875 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_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC 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 -> 3135e8c6758499d8c104b4505b2fe7ef12fcc55aa500301327caff1a32dcb551 [2024-11-24 02:08:09,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:08:09,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:08:09,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:08:09,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:08:09,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:08:09,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_52_bad.i [2024-11-24 02:08:12,515 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/4c9580144/94bf3103ab234860b14bb3842495127b/FLAGbbbc6bbbb [2024-11-24 02:08:13,126 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:08:13,127 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_52_bad.i [2024-11-24 02:08:13,176 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/4c9580144/94bf3103ab234860b14bb3842495127b/FLAGbbbc6bbbb [2024-11-24 02:08:13,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/data/4c9580144/94bf3103ab234860b14bb3842495127b [2024-11-24 02:08:13,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:08:13,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:08:13,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:08:13,638 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:08:13,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:08:13,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:08:13" (1/1) ... [2024-11-24 02:08:13,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5682ed71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:13, skipping insertion in model container [2024-11-24 02:08:13,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:08:13" (1/1) ... [2024-11-24 02:08:13,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:08:15,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:08:15,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:08:15,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:08:16,185 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:08:16,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16 WrapperNode [2024-11-24 02:08:16,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:08:16,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:08:16,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:08:16,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:08:16,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,266 INFO L138 Inliner]: procedures = 943, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2024-11-24 02:08:16,266 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:08:16,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:08:16,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:08:16,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:08:16,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,286 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,300 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]. [2024-11-24 02:08:16,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,322 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:08:16,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:08:16,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:08:16,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:08:16,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (1/1) ... [2024-11-24 02:08:16,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:08:16,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:08:16,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:08:16,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:08:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:08:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:08:16,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:08:16,425 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 02:08:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 02:08:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 02:08:16,611 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:08:16,613 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:08:18,172 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-24 02:08:18,173 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:08:18,184 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:08:18,184 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 02:08:18,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:18 BoogieIcfgContainer [2024-11-24 02:08:18,184 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:08:18,186 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:08:18,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:08:18,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:08:18,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:08:13" (1/3) ... [2024-11-24 02:08:18,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfcbc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:08:18, skipping insertion in model container [2024-11-24 02:08:18,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:08:16" (2/3) ... [2024-11-24 02:08:18,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cfcbc6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:08:18, skipping insertion in model container [2024-11-24 02:08:18,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:18" (3/3) ... [2024-11-24 02:08:18,195 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_52_bad.i [2024-11-24 02:08:18,211 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:08:18,213 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_52_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-24 02:08:18,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:08:18,278 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;@26ba9457, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:08:18,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 02:08:18,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) [2024-11-24 02:08:18,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 02:08:18,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:08:18,289 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:08:18,290 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 02:08:18,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:08:18,295 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2024-11-24 02:08:18,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:08:18,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163820857] [2024-11-24 02:08:18,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:08:18,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:08:18,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:08:18,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:08:18,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:08:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:08:18,832 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 02:08:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 02:08:20,422 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-24 02:08:20,424 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 02:08:20,425 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 02:08:20,427 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 02:08:20,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:08:20,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:08:20,633 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 02:08:20,659 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 02:08:20,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 02:08:20 BoogieIcfgContainer [2024-11-24 02:08:20,666 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 02:08:20,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 02:08:20,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 02:08:20,667 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 02:08:20,667 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:08:18" (3/4) ... [2024-11-24 02:08:20,670 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 02:08:20,671 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 02:08:20,672 INFO L158 Benchmark]: Toolchain (without parser) took 7036.49ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 41.2MB in the end (delta: 48.3MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2024-11-24 02:08:20,673 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 83.9MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:08:20,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2549.26ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 79.5MB in the end (delta: 9.9MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2024-11-24 02:08:20,673 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.84ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 75.7MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 02:08:20,674 INFO L158 Benchmark]: Boogie Preprocessor took 73.57ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:08:20,675 INFO L158 Benchmark]: RCFGBuilder took 1842.75ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 59.6MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 02:08:20,675 INFO L158 Benchmark]: TraceAbstraction took 2479.31ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 41.9MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 02:08:20,676 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 117.4MB. Free memory was 41.9MB in the beginning and 41.2MB in the end (delta: 674.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 02:08:20,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 83.9MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2549.26ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 79.5MB in the end (delta: 9.9MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.84ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 75.7MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.57ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1842.75ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 59.6MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2479.31ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 41.9MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 117.4MB. Free memory was 41.9MB in the beginning and 41.2MB in the end (delta: 674.1kB). 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: 1866]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1841, overapproximation of fgets at line 1839. 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] [L1853] 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) [L1853] 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] [L1854] CALL CWE190_Integer_Overflow__int_fgets_square_52_bad() [L1835] int data; [L1836] data = 0 [L1838] 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] [L1839] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1841] data = atoi(inputBuffer) [L1848] CALL CWE190_Integer_Overflow__int_fgets_square_52b_badSink(data) [L1861] CALL CWE190_Integer_Overflow__int_fgets_square_52c_badSink(data) [L1866] 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: 1866]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, 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=24occurred 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, 0.4s 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 [2024-11-24 02:08:20,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c7a6546-beb3-458a-a19d-344e38ff8418/bin/uautomizer-verify-LYvppIcaGC/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