./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_67_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX --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 4db615e9042bc9d15216f1a564797da59c8921232edbe2f047b3390e1f375ad2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:25:52,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:25:53,002 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 18:25:53,012 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:25:53,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:25:53,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:25:53,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:25:53,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:25:53,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:25:53,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:25:53,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:25:53,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:25:53,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:25:53,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:25:53,058 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:25:53,059 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:25:53,059 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:25:53,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:25:53,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:25:53,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:25:53,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:25:53,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:25:53,065 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:25:53,066 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:25:53,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:25:53,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:25:53,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:25:53,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:25:53,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:25:53,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:25:53,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:25:53,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:25:53,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:25:53,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:25:53,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:25:53,083 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:25:53,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:25:53,084 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:25:53,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:25:53,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:25:53,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:25:53,085 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_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4db615e9042bc9d15216f1a564797da59c8921232edbe2f047b3390e1f375ad2 [2024-11-08 18:25:53,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:25:53,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:25:53,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:25:53,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:25:53,461 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:25:53,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_67_bad.i Unable to find full path for "g++" [2024-11-08 18:25:55,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:25:55,919 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:25:55,919 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_67_bad.i [2024-11-08 18:25:55,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data/7e8098f60/25c04ced888d4162bc43f1c04fad4705/FLAG8f96747d7 [2024-11-08 18:25:55,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data/7e8098f60/25c04ced888d4162bc43f1c04fad4705 [2024-11-08 18:25:55,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:25:55,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:25:55,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:25:55,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:25:55,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:25:55,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:25:55" (1/1) ... [2024-11-08 18:25:55,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107721ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:55, skipping insertion in model container [2024-11-08 18:25:55,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:25:55" (1/1) ... [2024-11-08 18:25:56,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:25:57,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:25:57,197 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:25:57,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:25:57,469 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:25:57,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57 WrapperNode [2024-11-08 18:25:57,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:25:57,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:25:57,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:25:57,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:25:57,479 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,536 INFO L138 Inliner]: procedures = 499, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2024-11-08 18:25:57,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:25:57,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:25:57,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:25:57,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:25:57,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,596 INFO L175 MemorySlicer]: Split 5 memory accesses to 3 slices as follows [1, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-08 18:25:57,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:25:57,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:25:57,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:25:57,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:25:57,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (1/1) ... [2024-11-08 18:25:57,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:25:57,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:25:57,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:25:57,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:25:57,724 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:25:57,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:25:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:25:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:25:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:25:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:25:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:25:57,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:25:57,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:25:57,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:25:57,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:25:57,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:25:57,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:25:57,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:25:57,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:25:57,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:25:57,920 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:25:57,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:25:58,092 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 18:25:58,093 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:25:58,116 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:25:58,116 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:25:58,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:58 BoogieIcfgContainer [2024-11-08 18:25:58,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:25:58,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:25:58,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:25:58,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:25:58,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:25:55" (1/3) ... [2024-11-08 18:25:58,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adad296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:25:58, skipping insertion in model container [2024-11-08 18:25:58,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:57" (2/3) ... [2024-11-08 18:25:58,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3adad296 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:25:58, skipping insertion in model container [2024-11-08 18:25:58,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:58" (3/3) ... [2024-11-08 18:25:58,133 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_67_bad.i [2024-11-08 18:25:58,158 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:25:58,158 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:25:58,215 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:25:58,220 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;@4fac14a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:25:58,220 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:25:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:25:58,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:25:58,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:25:58,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:25:58,235 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:25:58,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:25:58,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:25:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:25:58,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553739135] [2024-11-08 18:25:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:25:58,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:25:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:25:58,453 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:25:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:25:58,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:25:58,557 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:25:58,559 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:25:58,561 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:25:58,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:25:58,569 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:25:58,607 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:25:58,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:25:58 BoogieIcfgContainer [2024-11-08 18:25:58,613 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:25:58,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:25:58,615 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:25:58,616 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:25:58,616 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:58" (3/4) ... [2024-11-08 18:25:58,620 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:25:58,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:25:58,623 INFO L158 Benchmark]: Toolchain (without parser) took 2644.23ms. Allocated memory was 172.0MB in the beginning and 222.3MB in the end (delta: 50.3MB). Free memory was 128.3MB in the beginning and 138.1MB in the end (delta: -9.8MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2024-11-08 18:25:58,623 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 172.0MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:25:58,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1489.59ms. Allocated memory was 172.0MB in the beginning and 222.3MB in the end (delta: 50.3MB). Free memory was 128.3MB in the beginning and 181.1MB in the end (delta: -52.8MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-11-08 18:25:58,626 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.37ms. Allocated memory is still 222.3MB. Free memory was 181.1MB in the beginning and 177.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:25:58,627 INFO L158 Benchmark]: Boogie Preprocessor took 89.53ms. Allocated memory is still 222.3MB. Free memory was 177.9MB in the beginning and 174.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:25:58,628 INFO L158 Benchmark]: RCFGBuilder took 488.79ms. Allocated memory is still 222.3MB. Free memory was 174.8MB in the beginning and 160.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:25:58,629 INFO L158 Benchmark]: TraceAbstraction took 490.97ms. Allocated memory is still 222.3MB. Free memory was 159.1MB in the beginning and 138.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 18:25:58,631 INFO L158 Benchmark]: Witness Printer took 6.40ms. Allocated memory is still 222.3MB. Free memory was 138.1MB in the beginning and 138.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:25:58,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 172.0MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1489.59ms. Allocated memory was 172.0MB in the beginning and 222.3MB in the end (delta: 50.3MB). Free memory was 128.3MB in the beginning and 181.1MB in the end (delta: -52.8MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.37ms. Allocated memory is still 222.3MB. Free memory was 181.1MB in the beginning and 177.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.53ms. Allocated memory is still 222.3MB. Free memory was 177.9MB in the beginning and 174.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 488.79ms. Allocated memory is still 222.3MB. Free memory was 174.8MB in the beginning and 160.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 490.97ms. Allocated memory is still 222.3MB. Free memory was 159.1MB in the beginning and 138.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 6.40ms. Allocated memory is still 222.3MB. Free memory was 138.1MB in the beginning and 138.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_sub_67_structType myStruct; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={18:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myStruct.structFirst = data [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:25:58,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX --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 4db615e9042bc9d15216f1a564797da59c8921232edbe2f047b3390e1f375ad2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:26:01,246 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:26:01,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 18:26:01,363 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:26:01,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:26:01,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 18:26:01,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:26:01,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:26:01,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:26:01,426 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:26:01,427 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:26:01,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:26:01,428 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:26:01,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:26:01,431 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:26:01,432 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:26:01,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:26:01,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:26:01,433 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:26:01,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:26:01,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:26:01,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:26:01,440 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:26:01,440 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:26:01,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:26:01,441 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:26:01,441 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:26:01,441 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:26:01,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:26:01,442 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:26:01,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:26:01,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:26:01,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:26:01,444 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:26:01,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:26:01,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:26:01,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:26:01,446 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:26:01,447 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:26:01,447 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:26:01,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:26:01,448 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:26:01,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:26:01,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:26:01,448 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_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4db615e9042bc9d15216f1a564797da59c8921232edbe2f047b3390e1f375ad2 [2024-11-08 18:26:01,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:26:01,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:26:01,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:26:01,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:26:01,887 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:26:01,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_67_bad.i Unable to find full path for "g++" [2024-11-08 18:26:03,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:26:04,497 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:26:04,498 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_67_bad.i [2024-11-08 18:26:04,534 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data/cb1bc03fa/33a52933044443738f18b29ee4a74f2f/FLAG01c51fe09 [2024-11-08 18:26:04,560 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/data/cb1bc03fa/33a52933044443738f18b29ee4a74f2f [2024-11-08 18:26:04,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:26:04,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:26:04,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:26:04,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:26:04,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:26:04,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:26:04" (1/1) ... [2024-11-08 18:26:04,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400d74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:04, skipping insertion in model container [2024-11-08 18:26:04,583 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:26:04" (1/1) ... [2024-11-08 18:26:04,672 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:26:05,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:26:05,848 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:26:05,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:26:06,163 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:26:06,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06 WrapperNode [2024-11-08 18:26:06,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:26:06,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:26:06,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:26:06,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:26:06,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,250 INFO L138 Inliner]: procedures = 504, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2024-11-08 18:26:06,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:26:06,253 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:26:06,254 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:26:06,254 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:26:06,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,273 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,302 INFO L175 MemorySlicer]: Split 5 memory accesses to 3 slices as follows [1, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-08 18:26:06,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:26:06,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:26:06,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:26:06,346 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:26:06,347 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (1/1) ... [2024-11-08 18:26:06,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:26:06,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:26:06,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:26:06,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:26:06,424 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:26:06,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:26:06,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:26:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:26:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:26:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:26:06,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:26:06,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:26:06,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:26:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:26:06,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:26:06,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:26:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:26:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:26:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:26:06,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:26:06,696 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:26:06,699 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:26:06,982 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-08 18:26:06,983 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:26:07,004 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:26:07,005 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:26:07,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:26:07 BoogieIcfgContainer [2024-11-08 18:26:07,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:26:07,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:26:07,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:26:07,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:26:07,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:26:04" (1/3) ... [2024-11-08 18:26:07,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243a157e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:26:07, skipping insertion in model container [2024-11-08 18:26:07,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:26:06" (2/3) ... [2024-11-08 18:26:07,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243a157e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:26:07, skipping insertion in model container [2024-11-08 18:26:07,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:26:07" (3/3) ... [2024-11-08 18:26:07,021 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_67_bad.i [2024-11-08 18:26:07,043 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:26:07,043 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:26:07,129 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:26:07,137 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;@b70b7f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:26:07,137 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:26:07,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:26:07,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:26:07,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:26:07,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:26:07,154 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:26:07,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:26:07,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:26:07,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:26:07,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545950052] [2024-11-08 18:26:07,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:26:07,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:26:07,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:26:07,201 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:26:07,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:26:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:26:07,493 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:26:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:26:07,728 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 18:26:07,734 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:26:07,739 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:26:07,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:26:07,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:26:07,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:26:07,952 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:26:07,976 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:26:07,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:26:07 BoogieIcfgContainer [2024-11-08 18:26:07,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:26:07,980 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:26:07,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:26:07,981 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:26:07,981 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:26:07" (3/4) ... [2024-11-08 18:26:07,988 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:26:07,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:26:07,991 INFO L158 Benchmark]: Toolchain (without parser) took 3420.26ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 45.7MB in the beginning and 61.7MB in the end (delta: -16.0MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-08 18:26:07,992 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:26:07,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1591.91ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 45.6MB in the beginning and 44.0MB in the end (delta: 1.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-08 18:26:07,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.91ms. Allocated memory is still 88.1MB. Free memory was 44.0MB in the beginning and 40.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:26:07,994 INFO L158 Benchmark]: Boogie Preprocessor took 92.05ms. Allocated memory is still 88.1MB. Free memory was 40.6MB in the beginning and 37.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:26:07,995 INFO L158 Benchmark]: RCFGBuilder took 660.19ms. Allocated memory is still 88.1MB. Free memory was 37.4MB in the beginning and 44.3MB in the end (delta: -7.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:26:07,996 INFO L158 Benchmark]: TraceAbstraction took 969.85ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 43.5MB in the beginning and 62.3MB in the end (delta: -18.7MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2024-11-08 18:26:07,996 INFO L158 Benchmark]: Witness Printer took 9.13ms. Allocated memory is still 107.0MB. Free memory was 62.3MB in the beginning and 61.7MB in the end (delta: 541.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:26:08,001 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 49.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1591.91ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 45.6MB in the beginning and 44.0MB in the end (delta: 1.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.91ms. Allocated memory is still 88.1MB. Free memory was 44.0MB in the beginning and 40.6MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.05ms. Allocated memory is still 88.1MB. Free memory was 40.6MB in the beginning and 37.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 660.19ms. Allocated memory is still 88.1MB. Free memory was 37.4MB in the beginning and 44.3MB in the end (delta: -7.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 969.85ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 43.5MB in the beginning and 62.3MB in the end (delta: -18.7MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 9.13ms. Allocated memory is still 107.0MB. Free memory was 62.3MB in the beginning and 61.7MB in the end (delta: 541.5kB). 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_sub_67_structType myStruct; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={7:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myStruct.structFirst = data [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:26:08,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53535e79-4bfd-48a7-be6a-0349ebace190/bin/uautomizer-verify-jihMAELWvX/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample