./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya --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 3309e44f23d49754e728b1f66d70c06fad732fdba11503df3369de99d08907e6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:03:08,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:03:08,432 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 02:03:08,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:03:08,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:03:08,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:03:08,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:03:08,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:03:08,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:03:08,464 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:03:08,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:03:08,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:03:08,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:03:08,466 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:03:08,467 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:03:08,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:03:08,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:03:08,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:03:08,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:03:08,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:03:08,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:03:08,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:03:08,471 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:03:08,472 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:03:08,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:03:08,472 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:03:08,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:03:08,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:03:08,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:03:08,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:03:08,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:03:08,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:03:08,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:03:08,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:03:08,476 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:03:08,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:03:08,476 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:03:08,476 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:03:08,477 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:03:08,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:03:08,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:03:08,477 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3309e44f23d49754e728b1f66d70c06fad732fdba11503df3369de99d08907e6 [2023-11-29 02:03:08,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:03:08,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:03:08,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:03:08,740 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:03:08,741 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:03:08,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i [2023-11-29 02:03:11,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:03:11,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:03:11,778 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i [2023-11-29 02:03:11,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data/f67ff0cc7/78b96c697e9f46aeb359eccde4e22dc9/FLAGe5cf19b26 [2023-11-29 02:03:11,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data/f67ff0cc7/78b96c697e9f46aeb359eccde4e22dc9 [2023-11-29 02:03:11,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:03:11,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:03:11,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:03:11,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:03:11,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:03:11,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:03:11" (1/1) ... [2023-11-29 02:03:11,828 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf73b88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:11, skipping insertion in model container [2023-11-29 02:03:11,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:03:11" (1/1) ... [2023-11-29 02:03:11,895 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:03:12,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:03:12,615 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:03:12,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:03:12,835 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:12,836 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:12,836 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:12,836 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:12,844 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:03:12,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12 WrapperNode [2023-11-29 02:03:12,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:03:12,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:03:12,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:03:12,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:03:12,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,906 INFO L138 Inliner]: procedures = 498, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-11-29 02:03:12,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:03:12,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:03:12,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:03:12,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:03:12,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,924 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,940 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [1, 5]. 83 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 3 writes are split as follows [0, 3]. [2023-11-29 02:03:12,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,952 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:03:12,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:03:12,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:03:12,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:03:12,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (1/1) ... [2023-11-29 02:03:12,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:03:12,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:03:12,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:03:12,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:03:13,020 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 02:03:13,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 02:03:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:03:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 02:03:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 02:03:13,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:03:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:03:13,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:03:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:03:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 02:03:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 02:03:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 02:03:13,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:03:13,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:03:13,207 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:03:13,210 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:03:13,316 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:03:13,348 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:03:13,349 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:03:13,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:03:13 BoogieIcfgContainer [2023-11-29 02:03:13,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:03:13,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:03:13,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:03:13,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:03:13,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:03:11" (1/3) ... [2023-11-29 02:03:13,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd7e2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:03:13, skipping insertion in model container [2023-11-29 02:03:13,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:12" (2/3) ... [2023-11-29 02:03:13,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd7e2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:03:13, skipping insertion in model container [2023-11-29 02:03:13,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:03:13" (3/3) ... [2023-11-29 02:03:13,360 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i [2023-11-29 02:03:13,380 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:03:13,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 02:03:13,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:03:13,433 INFO L357 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, mHoare=true, 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;@1b7e273c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:03:13,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 02:03:13,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-11-29 02:03:13,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 02:03:13,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:13,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:03:13,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 02:03:13,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:13,453 INFO L85 PathProgramCache]: Analyzing trace with hash 540512693, now seen corresponding path program 1 times [2023-11-29 02:03:13,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:03:13,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091524634] [2023-11-29 02:03:13,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:13,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:03:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:03:13,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:03:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:03:13,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:03:13,666 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:03:13,667 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 02:03:13,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 02:03:13,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:03:13,675 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 02:03:13,679 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:03:13,693 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-11-29 02:03:13,694 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-29 02:03:13,695 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-29 02:03:13,697 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 02:03:13,697 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated [2023-11-29 02:03:13,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:03:13 BoogieIcfgContainer [2023-11-29 02:03:13,705 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:03:13,706 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:03:13,706 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:03:13,706 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:03:13,707 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:03:13" (3/4) ... [2023-11-29 02:03:13,710 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:03:13,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:03:13,713 INFO L158 Benchmark]: Toolchain (without parser) took 1892.89ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 142.2MB in the beginning and 175.9MB in the end (delta: -33.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-29 02:03:13,713 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 150.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:03:13,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1024.00ms. Allocated memory is still 180.4MB. Free memory was 142.2MB in the beginning and 79.6MB in the end (delta: 62.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-29 02:03:13,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.83ms. Allocated memory is still 180.4MB. Free memory was 79.6MB in the beginning and 76.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:03:13,715 INFO L158 Benchmark]: Boogie Preprocessor took 46.99ms. Allocated memory is still 180.4MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:03:13,716 INFO L158 Benchmark]: RCFGBuilder took 394.12ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 74.4MB in the beginning and 194.1MB in the end (delta: -119.7MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-29 02:03:13,716 INFO L158 Benchmark]: TraceAbstraction took 352.57ms. Allocated memory is still 234.9MB. Free memory was 194.1MB in the beginning and 176.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 02:03:13,717 INFO L158 Benchmark]: Witness Printer took 5.26ms. Allocated memory is still 234.9MB. Free memory was 176.3MB in the beginning and 175.9MB in the end (delta: 402.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:03:13,720 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 150.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1024.00ms. Allocated memory is still 180.4MB. Free memory was 142.2MB in the beginning and 79.6MB in the end (delta: 62.6MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.83ms. Allocated memory is still 180.4MB. Free memory was 79.6MB in the beginning and 76.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.99ms. Allocated memory is still 180.4MB. Free memory was 76.5MB in the beginning and 74.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.12ms. Allocated memory was 180.4MB in the beginning and 234.9MB in the end (delta: 54.5MB). Free memory was 74.4MB in the beginning and 194.1MB in the end (delta: -119.7MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 352.57ms. Allocated memory is still 234.9MB. Free memory was 194.1MB in the beginning and 176.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.26ms. Allocated memory is still 234.9MB. Free memory was 176.3MB in the beginning and 175.9MB in the end (delta: 402.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem100 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1562. 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); [L1562] CALL 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, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741828:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_fscanf_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR \read(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] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1554]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 02:03:13,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya --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 3309e44f23d49754e728b1f66d70c06fad732fdba11503df3369de99d08907e6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:03:15,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:03:15,802 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 02:03:15,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:03:15,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:03:15,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 02:03:15,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:03:15,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:03:15,837 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:03:15,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:03:15,838 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:03:15,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:03:15,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:03:15,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:03:15,841 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:03:15,841 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:03:15,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:03:15,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:03:15,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:03:15,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:03:15,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:03:15,844 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:03:15,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 02:03:15,845 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 02:03:15,845 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 02:03:15,846 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 02:03:15,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:03:15,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:03:15,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:03:15,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:03:15,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:03:15,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:03:15,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:03:15,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:03:15,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:03:15,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:03:15,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:03:15,849 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 02:03:15,850 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 02:03:15,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:03:15,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:03:15,850 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:03:15,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:03:15,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:03:15,851 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 02:03:15,851 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3309e44f23d49754e728b1f66d70c06fad732fdba11503df3369de99d08907e6 [2023-11-29 02:03:16,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:03:16,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:03:16,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:03:16,160 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:03:16,160 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:03:16,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i [2023-11-29 02:03:18,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:03:19,312 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:03:19,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i [2023-11-29 02:03:19,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data/2608d57aa/33d288d50c224375b550af156ec8866d/FLAG602a9ca80 [2023-11-29 02:03:19,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/data/2608d57aa/33d288d50c224375b550af156ec8866d [2023-11-29 02:03:19,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:03:19,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:03:19,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:03:19,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:03:19,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:03:19,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:03:19" (1/1) ... [2023-11-29 02:03:19,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:19, skipping insertion in model container [2023-11-29 02:03:19,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:03:19" (1/1) ... [2023-11-29 02:03:19,404 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:03:20,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:03:20,139 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:03:20,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:03:20,362 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:20,363 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:20,363 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:20,363 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 02:03:20,371 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:03:20,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20 WrapperNode [2023-11-29 02:03:20,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:03:20,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:03:20,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:03:20,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:03:20,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,434 INFO L138 Inliner]: procedures = 503, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2023-11-29 02:03:20,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:03:20,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:03:20,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:03:20,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:03:20,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,468 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [1, 5]. 83 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 3 writes are split as follows [0, 3]. [2023-11-29 02:03:20,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:03:20,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:03:20,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:03:20,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:03:20,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (1/1) ... [2023-11-29 02:03:20,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:03:20,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:03:20,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:03:20,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:03:20,561 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 02:03:20,562 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 02:03:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:03:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 02:03:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 02:03:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:03:20,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:03:20,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:03:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 02:03:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 02:03:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:03:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 02:03:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 02:03:20,563 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 02:03:20,724 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:03:20,727 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:03:20,882 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:03:20,918 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:03:20,918 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 02:03:20,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:03:20 BoogieIcfgContainer [2023-11-29 02:03:20,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:03:20,922 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:03:20,922 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:03:20,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:03:20,926 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:03:19" (1/3) ... [2023-11-29 02:03:20,926 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6417f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:03:20, skipping insertion in model container [2023-11-29 02:03:20,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:03:20" (2/3) ... [2023-11-29 02:03:20,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6417f71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:03:20, skipping insertion in model container [2023-11-29 02:03:20,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:03:20" (3/3) ... [2023-11-29 02:03:20,928 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_01_bad.i [2023-11-29 02:03:20,949 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:03:20,949 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 02:03:20,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:03:21,005 INFO L357 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, mHoare=true, 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;@24304057, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:03:21,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 02:03:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2023-11-29 02:03:21,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 02:03:21,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:03:21,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:03:21,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 02:03:21,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:03:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash 540512693, now seen corresponding path program 1 times [2023-11-29 02:03:21,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 02:03:21,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478643083] [2023-11-29 02:03:21,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:03:21,042 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:03:21,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 02:03:21,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-29 02:03:21,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-29 02:03:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:03:21,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:03:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:03:21,258 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 02:03:21,260 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 02:03:21,261 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 02:03:21,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 02:03:21,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:03:21,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 02:03:21,468 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 02:03:21,472 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:03:21,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-29 02:03:21,488 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argc [2023-11-29 02:03:21,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-29 02:03:21,493 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #in~argv [2023-11-29 02:03:21,494 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem98 could not be translated [2023-11-29 02:03:21,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:03:21 BoogieIcfgContainer [2023-11-29 02:03:21,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:03:21,502 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:03:21,502 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:03:21,502 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:03:21,503 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:03:20" (3/4) ... [2023-11-29 02:03:21,505 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 02:03:21,506 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:03:21,507 INFO L158 Benchmark]: Toolchain (without parser) took 2156.42ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 50.2MB in the beginning and 74.3MB in the end (delta: -24.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-29 02:03:21,508 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:03:21,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1020.91ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 49.9MB in the beginning and 84.4MB in the end (delta: -34.5MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-11-29 02:03:21,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.66ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 81.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:03:21,510 INFO L158 Benchmark]: Boogie Preprocessor took 55.84ms. Allocated memory is still 113.2MB. Free memory was 81.1MB in the beginning and 78.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:03:21,510 INFO L158 Benchmark]: RCFGBuilder took 426.55ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 62.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 02:03:21,511 INFO L158 Benchmark]: TraceAbstraction took 579.40ms. Allocated memory is still 113.2MB. Free memory was 61.3MB in the beginning and 74.3MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:03:21,511 INFO L158 Benchmark]: Witness Printer took 4.23ms. Allocated memory is still 113.2MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:03:21,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1020.91ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 49.9MB in the beginning and 84.4MB in the end (delta: -34.5MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.66ms. Allocated memory is still 113.2MB. Free memory was 84.4MB in the beginning and 81.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.84ms. Allocated memory is still 113.2MB. Free memory was 81.1MB in the beginning and 78.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 426.55ms. Allocated memory is still 113.2MB. Free memory was 78.5MB in the beginning and 62.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 579.40ms. Allocated memory is still 113.2MB. Free memory was 61.3MB in the beginning and 74.3MB in the end (delta: -13.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.23ms. Allocated memory is still 113.2MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argc - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #in~argc has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #in~argv - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem98 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1562. 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); [L1562] CALL 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, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_fscanf_predec_01_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR \read(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] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1554]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 02:03:21,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_132e0be9-4a0e-40c0-b820-fb396e296190/bin/uautomizer-verify-BQ2R08f2Ya/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