./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_02_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_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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 53bad581b7b35373c4d80090e0a3e21e910c9a8bc5aac20882d7709aaf2b2638 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:26:40,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:26:40,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-23 18:26:40,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:26:40,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:26:40,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:26:40,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:26:40,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:26:40,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:26:40,508 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:26:40,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:26:40,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:26:40,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:26:40,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:26:40,508 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:26:40,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:26:40,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:26:40,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:26:40,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:26:40,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:26:40,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:26:40,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:26:40,510 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 18:26:40,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:26:40,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:26:40,510 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:26:40,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:26:40,511 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:26:40,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:40,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:40,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:40,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:40,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:26:40,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:40,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:40,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:40,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:40,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:26:40,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:26:40,512 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:26:40,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:26:40,513 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:26:40,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:26:40,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:26:40,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:26:40,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:26:40,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:26:40,513 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_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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 -> 53bad581b7b35373c4d80090e0a3e21e910c9a8bc5aac20882d7709aaf2b2638 [2024-11-23 18:26:40,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:26:40,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:26:40,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:26:40,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:26:40,798 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:26:40,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_02_bad.i [2024-11-23 18:26:43,952 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/d111211a5/7a967be90c454cb38e9cd01f9d4675b5/FLAG65dd2d846 [2024-11-23 18:26:44,545 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:26:44,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_02_bad.i [2024-11-23 18:26:44,592 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/d111211a5/7a967be90c454cb38e9cd01f9d4675b5/FLAG65dd2d846 [2024-11-23 18:26:45,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/d111211a5/7a967be90c454cb38e9cd01f9d4675b5 [2024-11-23 18:26:45,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:26:45,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:26:45,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:45,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:26:45,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:26:45,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:45" (1/1) ... [2024-11-23 18:26:45,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6927d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:45, skipping insertion in model container [2024-11-23 18:26:45,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:45" (1/1) ... [2024-11-23 18:26:45,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:26:46,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:46,915 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:26:47,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:47,379 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:26:47,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47 WrapperNode [2024-11-23 18:26:47,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:47,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:47,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:26:47,381 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:26:47,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,413 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,439 INFO L138 Inliner]: procedures = 936, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-11-23 18:26:47,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:47,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:26:47,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:26:47,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:26:47,451 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,468 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]. [2024-11-23 18:26:47,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,473 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,477 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:26:47,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:26:47,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:26:47,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:26:47,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (1/1) ... [2024-11-23 18:26:47,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:47,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:47,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:26:47,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:26:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:26:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:26:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:26:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 18:26:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 18:26:47,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:26:47,729 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:26:47,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:26:47,867 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-23 18:26:47,867 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:26:47,878 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:26:47,878 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:26:47,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:47 BoogieIcfgContainer [2024-11-23 18:26:47,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:26:47,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:26:47,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:26:47,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:26:47,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:26:45" (1/3) ... [2024-11-23 18:26:47,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439b845b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:47, skipping insertion in model container [2024-11-23 18:26:47,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:47" (2/3) ... [2024-11-23 18:26:47,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@439b845b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:26:47, skipping insertion in model container [2024-11-23 18:26:47,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:47" (3/3) ... [2024-11-23 18:26:47,891 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_02_bad.i [2024-11-23 18:26:47,909 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:26:47,911 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_02_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-23 18:26:47,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:26:47,984 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;@1a02aa1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:26:47,985 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 18:26:47,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-11-23 18:26:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-23 18:26:47,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:47,998 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:47,998 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 18:26:48,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:48,005 INFO L85 PathProgramCache]: Analyzing trace with hash -500819106, now seen corresponding path program 1 times [2024-11-23 18:26:48,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:48,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925733062] [2024-11-23 18:26:48,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:48,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:26:48,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:26:48,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:26:48,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925733062] [2024-11-23 18:26:48,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925733062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:26:48,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:26:48,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:26:48,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670271729] [2024-11-23 18:26:48,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:26:48,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:26:48,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:26:48,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:26:48,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:48,303 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 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, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 18:26:48,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:26:48,322 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2024-11-23 18:26:48,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:26:48,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2024-11-23 18:26:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:26:48,331 INFO L225 Difference]: With dead ends: 37 [2024-11-23 18:26:48,333 INFO L226 Difference]: Without dead ends: 15 [2024-11-23 18:26:48,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:26:48,344 INFO L435 NwaCegarLoop]: 25 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, 25 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 [2024-11-23 18:26:48,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:26:48,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-23 18:26:48,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-23 18:26:48,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2024-11-23 18:26:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-11-23 18:26:48,389 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2024-11-23 18:26:48,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:26:48,392 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-11-23 18:26:48,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 18:26:48,393 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-23 18:26:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-23 18:26:48,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:26:48,395 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:26:48,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:26:48,396 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 18:26:48,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:26:48,397 INFO L85 PathProgramCache]: Analyzing trace with hash 804859611, now seen corresponding path program 1 times [2024-11-23 18:26:48,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:26:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309981239] [2024-11-23 18:26:48,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:48,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:26:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 18:26:48,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869052017] [2024-11-23 18:26:48,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:26:48,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:26:48,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:48,469 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:26:48,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:26:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:26:48,638 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:26:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:26:48,689 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:26:48,690 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:26:48,692 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 18:26:48,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 18:26:48,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 18:26:48,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-23 18:26:48,899 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 18:26:48,922 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:26:48,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:26:48 BoogieIcfgContainer [2024-11-23 18:26:48,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:26:48,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:26:48,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:26:48,928 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:26:48,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:26:47" (3/4) ... [2024-11-23 18:26:48,932 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:26:48,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:26:48,934 INFO L158 Benchmark]: Toolchain (without parser) took 3918.23ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 89.2MB in the beginning and 224.8MB in the end (delta: -135.6MB). Peak memory consumption was 103.6MB. Max. memory is 16.1GB. [2024-11-23 18:26:48,935 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:26:48,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2362.35ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 88.9MB in the beginning and 281.4MB in the end (delta: -192.6MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2024-11-23 18:26:48,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.55ms. Allocated memory is still 352.3MB. Free memory was 281.4MB in the beginning and 278.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:26:48,936 INFO L158 Benchmark]: Boogie Preprocessor took 41.47ms. Allocated memory is still 352.3MB. Free memory was 278.0MB in the beginning and 276.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:26:48,936 INFO L158 Benchmark]: RCFGBuilder took 396.18ms. Allocated memory is still 352.3MB. Free memory was 276.4MB in the beginning and 261.2MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:26:48,937 INFO L158 Benchmark]: TraceAbstraction took 1045.30ms. Allocated memory is still 352.3MB. Free memory was 260.8MB in the beginning and 224.8MB in the end (delta: 36.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-23 18:26:48,937 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 352.3MB. Free memory is still 224.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:26:48,939 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2362.35ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 88.9MB in the beginning and 281.4MB in the end (delta: -192.6MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.55ms. Allocated memory is still 352.3MB. Free memory was 281.4MB in the beginning and 278.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.47ms. Allocated memory is still 352.3MB. Free memory was 278.0MB in the beginning and 276.4MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 396.18ms. Allocated memory is still 352.3MB. Free memory was 276.4MB in the beginning and 261.2MB in the end (delta: 15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1045.30ms. Allocated memory is still 352.3MB. Free memory was 260.8MB in the beginning and 224.8MB in the end (delta: 36.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 352.3MB. Free memory is still 224.8MB. 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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842, overapproximation of fgets at line 1840. 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] [L1861] 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) [L1861] 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] [L1862] CALL CWE190_Integer_Overflow__int_fgets_square_02_bad() [L1834] int data; [L1835] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1839] 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] [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1853] 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: 1853]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 25 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, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2024-11-23 18:26:48,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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 53bad581b7b35373c4d80090e0a3e21e910c9a8bc5aac20882d7709aaf2b2638 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:26:51,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:26:52,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-23 18:26:52,115 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:26:52,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:26:52,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-23 18:26:52,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:26:52,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:26:52,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:26:52,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:26:52,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:26:52,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:26:52,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:26:52,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:26:52,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:26:52,164 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:26:52,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:26:52,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:26:52,166 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:26:52,166 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:26:52,166 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:26:52,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:52,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:52,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:52,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:52,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:26:52,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:26:52,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:26:52,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:26:52,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:52,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:26:52,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:26:52,168 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:26:52,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:26:52,169 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 18:26:52,169 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 18:26:52,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:26:52,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:26:52,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:26:52,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:26:52,170 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_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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 -> 53bad581b7b35373c4d80090e0a3e21e910c9a8bc5aac20882d7709aaf2b2638 [2024-11-23 18:26:52,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:26:52,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:26:52,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:26:52,552 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:26:52,552 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:26:52,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_02_bad.i [2024-11-23 18:26:55,773 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/60265d379/86b40055a8df4b3e98c714ed0a113201/FLAG3342b5d5a [2024-11-23 18:26:56,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:26:56,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_02_bad.i [2024-11-23 18:26:56,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/60265d379/86b40055a8df4b3e98c714ed0a113201/FLAG3342b5d5a [2024-11-23 18:26:56,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/data/60265d379/86b40055a8df4b3e98c714ed0a113201 [2024-11-23 18:26:56,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:26:56,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:26:56,295 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:56,295 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:26:56,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:26:56,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:56" (1/1) ... [2024-11-23 18:26:56,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1adf6643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:56, skipping insertion in model container [2024-11-23 18:26:56,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:26:56" (1/1) ... [2024-11-23 18:26:56,366 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:26:58,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:58,243 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:26:58,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:26:58,855 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:26:58,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58 WrapperNode [2024-11-23 18:26:58,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:26:58,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:58,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:26:58,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:26:58,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,942 INFO L138 Inliner]: procedures = 941, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-23 18:26:58,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:26:58,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:26:58,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:26:58,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:26:58,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,972 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]. [2024-11-23 18:26:58,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,981 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:58,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:26:58,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:26:58,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:26:58,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:26:58,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (1/1) ... [2024-11-23 18:26:59,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:26:59,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:26:59,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:26:59,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:26:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:26:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:26:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:26:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 18:26:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 18:26:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 18:26:59,241 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:26:59,243 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:27:00,914 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-23 18:27:00,914 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:27:00,925 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:27:00,925 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:27:00,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:00 BoogieIcfgContainer [2024-11-23 18:27:00,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:27:00,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:27:00,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:27:00,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:27:00,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:26:56" (1/3) ... [2024-11-23 18:27:00,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69965c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:27:00, skipping insertion in model container [2024-11-23 18:27:00,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:26:58" (2/3) ... [2024-11-23 18:27:00,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69965c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:27:00, skipping insertion in model container [2024-11-23 18:27:00,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:00" (3/3) ... [2024-11-23 18:27:00,938 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_02_bad.i [2024-11-23 18:27:00,957 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:27:00,959 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_02_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-23 18:27:01,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:27:01,035 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;@547d816f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:27:01,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 18:27:01,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 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) [2024-11-23 18:27:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-23 18:27:01,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:01,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:01,050 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 18:27:01,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:01,056 INFO L85 PathProgramCache]: Analyzing trace with hash -500819106, now seen corresponding path program 1 times [2024-11-23 18:27:01,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:27:01,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61672309] [2024-11-23 18:27:01,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:01,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:01,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:01,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:27:01,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:27:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:27:01,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:27:01,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:27:01,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:27:01,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:27:01,244 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:27:01,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61672309] [2024-11-23 18:27:01,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61672309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:27:01,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:27:01,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:27:01,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933251468] [2024-11-23 18:27:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:27:01,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:27:01,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:27:01,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:27:01,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:27:01,279 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 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, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 18:27:01,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:27:01,295 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2024-11-23 18:27:01,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:27:01,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2024-11-23 18:27:01,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:27:01,303 INFO L225 Difference]: With dead ends: 38 [2024-11-23 18:27:01,303 INFO L226 Difference]: Without dead ends: 16 [2024-11-23 18:27:01,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:27:01,309 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 [2024-11-23 18:27:01,310 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] [2024-11-23 18:27:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-23 18:27:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-23 18:27:01,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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) [2024-11-23 18:27:01,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-23 18:27:01,347 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2024-11-23 18:27:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:27:01,348 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-23 18:27:01,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-23 18:27:01,349 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-23 18:27:01,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 18:27:01,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:27:01,350 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:27:01,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:27:01,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:01,551 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 18:27:01,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:27:01,552 INFO L85 PathProgramCache]: Analyzing trace with hash -251131453, now seen corresponding path program 1 times [2024-11-23 18:27:01,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:27:01,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1800769877] [2024-11-23 18:27:01,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:27:01,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:01,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:27:01,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:27:01,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:27:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:04,540 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:27:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:27:06,257 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-23 18:27:06,257 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:27:06,259 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 18:27:06,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 18:27:06,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:27:06,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:27:06,465 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 18:27:06,487 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:27:06,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:27:06 BoogieIcfgContainer [2024-11-23 18:27:06,491 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:27:06,492 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:27:06,492 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:27:06,492 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:27:06,493 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:27:00" (3/4) ... [2024-11-23 18:27:06,496 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:27:06,497 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:27:06,497 INFO L158 Benchmark]: Toolchain (without parser) took 10204.74ms. Allocated memory was 83.9MB in the beginning and 167.8MB in the end (delta: 83.9MB). Free memory was 55.4MB in the beginning and 80.0MB in the end (delta: -24.6MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2024-11-23 18:27:06,498 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:27:06,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2562.00ms. Allocated memory was 83.9MB in the beginning and 167.8MB in the end (delta: 83.9MB). Free memory was 55.4MB in the beginning and 131.8MB in the end (delta: -76.4MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2024-11-23 18:27:06,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.59ms. Allocated memory is still 167.8MB. Free memory was 131.8MB in the beginning and 128.1MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:27:06,499 INFO L158 Benchmark]: Boogie Preprocessor took 48.65ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 126.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:27:06,499 INFO L158 Benchmark]: RCFGBuilder took 1933.30ms. Allocated memory is still 167.8MB. Free memory was 126.2MB in the beginning and 110.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:27:06,500 INFO L158 Benchmark]: TraceAbstraction took 5562.02ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 80.0MB in the end (delta: 29.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 18:27:06,500 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 167.8MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:27:06,506 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2562.00ms. Allocated memory was 83.9MB in the beginning and 167.8MB in the end (delta: 83.9MB). Free memory was 55.4MB in the beginning and 131.8MB in the end (delta: -76.4MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.59ms. Allocated memory is still 167.8MB. Free memory was 131.8MB in the beginning and 128.1MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.65ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 126.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1933.30ms. Allocated memory is still 167.8MB. Free memory was 126.2MB in the beginning and 110.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5562.02ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 80.0MB in the end (delta: 29.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 167.8MB. Free memory is still 80.0MB. 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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842, overapproximation of fgets at line 1840. 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] [L1861] 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) [L1861] 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] [L1862] CALL CWE190_Integer_Overflow__int_fgets_square_02_bad() [L1834] int data; [L1835] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1839] 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] [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1853] 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: 1853]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, 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, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 2.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 1 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 [2024-11-23 18:27:06,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3f9b2cd-e92c-462a-9773-1550bbc2d130/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