./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:21:45,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:21:45,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 14:21:45,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:21:45,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:21:45,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:21:45,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:21:45,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:21:45,564 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:21:45,564 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:21:45,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:21:45,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:21:45,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:21:45,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:21:45,565 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:21:45,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:21:45,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:21:45,566 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:21:45,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:21:45,567 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:21:45,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:21:45,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:21:45,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:21:45,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:45,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:45,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:21:45,568 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:21:45,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:21:45,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:21:45,569 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:21:45,569 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:21:45,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:21:45,569 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_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 [2024-12-02 14:21:45,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:21:45,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:21:45,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:21:45,843 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:21:45,843 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:21:45,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2024-12-02 14:21:48,645 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/e0a6d0ec2/f4e3ffb729914be88355333981bf9601/FLAG0562f9b9f [2024-12-02 14:21:48,948 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:21:48,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2024-12-02 14:21:48,972 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/e0a6d0ec2/f4e3ffb729914be88355333981bf9601/FLAG0562f9b9f [2024-12-02 14:21:48,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/e0a6d0ec2/f4e3ffb729914be88355333981bf9601 [2024-12-02 14:21:48,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:21:48,993 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:21:48,994 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:21:48,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:21:48,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:21:49,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:48" (1/1) ... [2024-12-02 14:21:49,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e1d5cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49, skipping insertion in model container [2024-12-02 14:21:49,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:48" (1/1) ... [2024-12-02 14:21:49,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:21:49,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:21:49,748 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:21:49,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:21:49,913 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:21:49,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49 WrapperNode [2024-12-02 14:21:49,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:21:49,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:21:49,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:21:49,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:21:49,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,952 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-12-02 14:21:49,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:21:49,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:21:49,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:21:49,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:21:49,963 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,979 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-12-02 14:21:49,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,984 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:21:49,992 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:21:49,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:21:49,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:21:49,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (1/1) ... [2024-12-02 14:21:49,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:50,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:21:50,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:21:50,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:21:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 14:21:50,048 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 14:21:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:21:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:21:50,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:21:50,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:21:50,156 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:21:50,157 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:21:50,261 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-02 14:21:50,261 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:21:50,270 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:21:50,271 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 14:21:50,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:50 BoogieIcfgContainer [2024-12-02 14:21:50,271 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:21:50,273 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:21:50,273 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:21:50,278 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:21:50,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:21:48" (1/3) ... [2024-12-02 14:21:50,279 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f02ffcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:21:50, skipping insertion in model container [2024-12-02 14:21:50,279 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:49" (2/3) ... [2024-12-02 14:21:50,280 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f02ffcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:21:50, skipping insertion in model container [2024-12-02 14:21:50,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:50" (3/3) ... [2024-12-02 14:21:50,281 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2024-12-02 14:21:50,297 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:21:50,298 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 14:21:50,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:21:50,366 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;@26ce1da5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:21:50,366 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 14:21:50,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 14:21:50,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 14:21:50,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:50,376 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:21:50,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:21:50,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:50,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2024-12-02 14:21:50,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:50,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863675647] [2024-12-02 14:21:50,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:50,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:21:50,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:50,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863675647] [2024-12-02 14:21:50,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863675647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:50,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:50,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:21:50,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739227872] [2024-12-02 14:21:50,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:50,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:21:50,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:50,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:21:50,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:21:50,699 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 14:21:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:21:50,742 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-12-02 14:21:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:21:50,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-12-02 14:21:50,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:21:50,750 INFO L225 Difference]: With dead ends: 23 [2024-12-02 14:21:50,750 INFO L226 Difference]: Without dead ends: 14 [2024-12-02 14:21:50,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:21:50,756 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:21:50,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:21:50,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-12-02 14:21:50,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-12-02 14:21:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:21:50,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-12-02 14:21:50,792 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2024-12-02 14:21:50,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:21:50,793 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-12-02 14:21:50,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 14:21:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-02 14:21:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 14:21:50,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:50,794 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:21:50,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:21:50,795 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:21:50,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:50,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2024-12-02 14:21:50,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:50,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282130571] [2024-12-02 14:21:50,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:50,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:21:50,827 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:21:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:21:50,858 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 14:21:50,858 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:21:50,860 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 14:21:50,861 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 14:21:50,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:21:50,865 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 14:21:50,887 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:21:50,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:21:50 BoogieIcfgContainer [2024-12-02 14:21:50,891 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:21:50,892 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:21:50,892 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:21:50,892 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:21:50,893 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:50" (3/4) ... [2024-12-02 14:21:50,896 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 14:21:50,896 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:21:50,897 INFO L158 Benchmark]: Toolchain (without parser) took 1904.52ms. Allocated memory is still 142.6MB. Free memory was 115.0MB in the beginning and 51.6MB in the end (delta: 63.3MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-12-02 14:21:50,898 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 142.6MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:50,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 919.62ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 104.3MB in the end (delta: 10.4MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-12-02 14:21:50,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.54ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 102.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:50,899 INFO L158 Benchmark]: Boogie Preprocessor took 38.31ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:50,899 INFO L158 Benchmark]: RCFGBuilder took 279.09ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 87.5MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:21:50,899 INFO L158 Benchmark]: TraceAbstraction took 618.21ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 51.6MB in the end (delta: 35.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-02 14:21:50,900 INFO L158 Benchmark]: Witness Printer took 4.40ms. Allocated memory is still 142.6MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:50,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 142.6MB. Free memory is still 84.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 919.62ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 104.3MB in the end (delta: 10.4MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.54ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 102.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.31ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 100.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.09ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 87.5MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 618.21ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 51.6MB in the end (delta: 35.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.40ms. Allocated memory is still 142.6MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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); [L1548] static int CWE190_Integer_Overflow__int_fgets_preinc_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_preinc_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE190_Integer_Overflow__int_fgets_preinc_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_preinc_45_badData; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] ++data VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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: 1555]: 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 14:21:50,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:21:52,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:21:53,090 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-12-02 14:21:53,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:21:53,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:21:53,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-12-02 14:21:53,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:21:53,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:21:53,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:21:53,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:21:53,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:21:53,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:21:53,124 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:21:53,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:21:53,124 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:21:53,124 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:21:53,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:21:53,124 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:21:53,124 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:21:53,125 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:21:53,126 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:53,126 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:21:53,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:53,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:21:53,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:21:53,127 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_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb0c088805ce07eaa5e2b5a1c35a95750107dc8fb62b404e0de3a8ad72a7c169 [2024-12-02 14:21:53,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:21:53,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:21:53,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:21:53,411 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:21:53,411 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:21:53,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2024-12-02 14:21:56,143 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/1ee06ccfd/b69d3c0491934034b2c2118f600ef379/FLAG715d2f914 [2024-12-02 14:21:56,419 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:21:56,420 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2024-12-02 14:21:56,443 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/1ee06ccfd/b69d3c0491934034b2c2118f600ef379/FLAG715d2f914 [2024-12-02 14:21:56,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/data/1ee06ccfd/b69d3c0491934034b2c2118f600ef379 [2024-12-02 14:21:56,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:21:56,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:21:56,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:21:56,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:21:56,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:21:56,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:56" (1/1) ... [2024-12-02 14:21:56,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb9fc65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:56, skipping insertion in model container [2024-12-02 14:21:56,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:56" (1/1) ... [2024-12-02 14:21:56,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:21:57,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:21:57,217 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:21:57,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:21:57,444 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:21:57,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57 WrapperNode [2024-12-02 14:21:57,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:21:57,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:21:57,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:21:57,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:21:57,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,488 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-02 14:21:57,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:21:57,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:21:57,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:21:57,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:21:57,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,499 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,511 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-12-02 14:21:57,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,512 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,520 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:21:57,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:21:57,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:21:57,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:21:57,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (1/1) ... [2024-12-02 14:21:57,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:57,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:21:57,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:21:57,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:21:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 14:21:57,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 14:21:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 14:21:57,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:21:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:21:57,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:21:57,698 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:21:57,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:21:57,814 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 14:21:57,815 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:21:57,823 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:21:57,823 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 14:21:57,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:57 BoogieIcfgContainer [2024-12-02 14:21:57,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:21:57,826 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:21:57,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:21:57,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:21:57,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:21:56" (1/3) ... [2024-12-02 14:21:57,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45081648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:21:57, skipping insertion in model container [2024-12-02 14:21:57,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:57" (2/3) ... [2024-12-02 14:21:57,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45081648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:21:57, skipping insertion in model container [2024-12-02 14:21:57,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:57" (3/3) ... [2024-12-02 14:21:57,833 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i [2024-12-02 14:21:57,846 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:21:57,847 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_45_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 14:21:57,890 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:21:57,899 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;@59bd07b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:21:57,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 14:21:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 14:21:57,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 14:21:57,908 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:57,908 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:21:57,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:21:57,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:57,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2024-12-02 14:21:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:21:57,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1558421074] [2024-12-02 14:21:57,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:57,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:21:57,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:21:57,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:21:57,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:21:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:58,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:21:58,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:21:58,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:21:58,077 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:21:58,077 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:21:58,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558421074] [2024-12-02 14:21:58,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558421074] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:58,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:58,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 14:21:58,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001121990] [2024-12-02 14:21:58,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:58,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:21:58,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:21:58,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:21:58,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:21:58,099 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 14:21:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:21:58,109 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-12-02 14:21:58,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:21:58,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-12-02 14:21:58,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:21:58,117 INFO L225 Difference]: With dead ends: 23 [2024-12-02 14:21:58,117 INFO L226 Difference]: Without dead ends: 14 [2024-12-02 14:21:58,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:21:58,123 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 [2024-12-02 14:21:58,124 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] [2024-12-02 14:21:58,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-12-02 14:21:58,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-12-02 14:21:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 14:21:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-12-02 14:21:58,159 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2024-12-02 14:21:58,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:21:58,159 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-12-02 14:21:58,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 14:21:58,160 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-02 14:21:58,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 14:21:58,161 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:21:58,161 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:21:58,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:21:58,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:21:58,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 14:21:58,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:58,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2024-12-02 14:21:58,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:21:58,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1631182522] [2024-12-02 14:21:58,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:58,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:21:58,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:21:58,366 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:21:58,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:21:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:21:58,467 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:21:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:21:58,503 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 14:21:58,503 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:21:58,504 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 14:21:58,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 14:21:58,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 14:21:58,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:21:58,709 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 14:21:58,728 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:21:58,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:21:58 BoogieIcfgContainer [2024-12-02 14:21:58,731 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:21:58,732 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:21:58,732 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:21:58,732 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:21:58,733 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:57" (3/4) ... [2024-12-02 14:21:58,734 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 14:21:58,735 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:21:58,736 INFO L158 Benchmark]: Toolchain (without parser) took 2273.27ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 44.0MB in the end (delta: 22.9MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-12-02 14:21:58,736 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:58,736 INFO L158 Benchmark]: CACSL2BoogieTranslator took 980.70ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 62.4MB in the end (delta: 4.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-12-02 14:21:58,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.95ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:58,737 INFO L158 Benchmark]: Boogie Preprocessor took 40.12ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:58,737 INFO L158 Benchmark]: RCFGBuilder took 293.77ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 44.0MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:21:58,737 INFO L158 Benchmark]: TraceAbstraction took 905.21ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 44.6MB in the end (delta: -1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:58,738 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 92.3MB. Free memory was 44.6MB in the beginning and 44.0MB in the end (delta: 539.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:21:58,740 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 980.70ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 62.4MB in the end (delta: 4.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.95ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.12ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.77ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 44.0MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 905.21ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 44.6MB in the end (delta: -1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 92.3MB. Free memory was 44.6MB in the beginning and 44.0MB in the end (delta: 539.3kB). Peak memory consumption was 8.4MB. 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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); [L1548] static int CWE190_Integer_Overflow__int_fgets_preinc_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_preinc_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE190_Integer_Overflow__int_fgets_preinc_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_preinc_45_badData; VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] ++data VAL [CWE190_Integer_Overflow__int_fgets_preinc_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_preinc_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_preinc_45_goodG2BData=0, 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: 1555]: 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 10 GetRequests, 10 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, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 60 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 [2024-12-02 14:21:58,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_847ecab4-ffa0-493e-a2a5-223bf77858bf/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample