./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB --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 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:11:38,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:11:38,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-28 03:11:38,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:11:38,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:11:38,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:11:38,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:11:38,397 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:11:38,397 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:11:38,397 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:11:38,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:11:38,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:11:38,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:11:38,398 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:11:38,398 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:11:38,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:11:38,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:11:38,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:11:38,400 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:38,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:11:38,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:38,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:11:38,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:11:38,401 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:11:38,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:11:38,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:11:38,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:11:38,401 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:11:38,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:11:38,402 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:11:38,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:11:38,402 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c [2024-11-28 03:11:38,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:11:38,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:11:38,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:11:38,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:11:38,724 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:11:38,725 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-11-28 03:11:41,668 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/27685ee78/aa95b963956e4a90af62d949550725d8/FLAGecd9e2a35 [2024-11-28 03:11:42,223 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:11:42,224 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-11-28 03:11:42,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/27685ee78/aa95b963956e4a90af62d949550725d8/FLAGecd9e2a35 [2024-11-28 03:11:42,285 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/27685ee78/aa95b963956e4a90af62d949550725d8 [2024-11-28 03:11:42,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:11:42,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:11:42,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:42,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:11:42,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:11:42,300 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:42" (1/1) ... [2024-11-28 03:11:42,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db8ded1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:42, skipping insertion in model container [2024-11-28 03:11:42,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:42" (1/1) ... [2024-11-28 03:11:42,371 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:11:43,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:43,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:11:43,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:43,812 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:11:43,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43 WrapperNode [2024-11-28 03:11:43,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:43,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:43,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:11:43,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:11:43,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,875 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-11-28 03:11:43,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:43,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:11:43,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:11:43,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:11:43,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,905 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-28 03:11:43,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,917 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:11:43,933 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:11:43,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:11:43,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:11:43,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (1/1) ... [2024-11-28 03:11:43,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:43,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:43,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:11:43,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:11:44,012 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-28 03:11:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-28 03:11:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:11:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:11:44,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:11:44,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:11:44,193 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:11:44,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:11:44,383 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-28 03:11:44,383 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:11:44,400 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:11:44,401 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:11:44,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:44 BoogieIcfgContainer [2024-11-28 03:11:44,401 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:11:44,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:11:44,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:11:44,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:11:44,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:42" (1/3) ... [2024-11-28 03:11:44,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfb35a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:44, skipping insertion in model container [2024-11-28 03:11:44,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:43" (2/3) ... [2024-11-28 03:11:44,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65dfb35a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:44, skipping insertion in model container [2024-11-28 03:11:44,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:44" (3/3) ... [2024-11-28 03:11:44,415 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-11-28 03:11:44,435 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:11:44,437 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 03:11:44,518 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:11:44,539 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;@5b3cd8a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:11:44,539 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:11:44,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:11:44,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:11:44,555 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:44,555 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:44,556 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 03:11:44,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:44,563 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2024-11-28 03:11:44,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:44,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765002438] [2024-11-28 03:11:44,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:44,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:44,760 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:44,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:11:44,827 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:11:44,829 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-28 03:11:44,831 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-28 03:11:44,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:11:44,840 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 03:11:44,871 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:11:44,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:44 BoogieIcfgContainer [2024-11-28 03:11:44,877 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:11:44,880 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:11:44,880 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:11:44,880 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:11:44,881 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:44" (3/4) ... [2024-11-28 03:11:44,884 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:11:44,885 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:11:44,887 INFO L158 Benchmark]: Toolchain (without parser) took 2595.28ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 47.5MB in the end (delta: 43.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-28 03:11:44,887 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:44,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1520.48ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 81.8MB in the end (delta: 8.3MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-28 03:11:44,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.49ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:44,889 INFO L158 Benchmark]: Boogie Preprocessor took 56.77ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 77.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:11:44,889 INFO L158 Benchmark]: RCFGBuilder took 467.90ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 65.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:11:44,890 INFO L158 Benchmark]: TraceAbstraction took 473.50ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 48.1MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:11:44,890 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 117.4MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:44,895 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1520.48ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 81.8MB in the end (delta: 8.3MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.49ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.77ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 77.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 467.90ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 65.2MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 473.50ms. Allocated memory is still 117.4MB. Free memory was 64.6MB in the beginning and 48.1MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 117.4MB. Free memory is still 47.5MB. 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_31_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 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: 1568]: 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: 0.3s, 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=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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:11:44,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB --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 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:11:47,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:11:47,967 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-28 03:11:47,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:11:47,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:11:47,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-28 03:11:48,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:11:48,017 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:11:48,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:11:48,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:11:48,019 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:11:48,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:11:48,019 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:11:48,019 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:11:48,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:11:48,020 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:11:48,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:11:48,021 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:11:48,022 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:48,022 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:11:48,022 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:48,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:11:48,023 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:11:48,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:11:48,024 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c [2024-11-28 03:11:48,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:11:48,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:11:48,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:11:48,430 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:11:48,430 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:11:48,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-11-28 03:11:51,589 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/93e735acc/fc14a7bce2014cd5bdaa97d683946323/FLAG890eba6a2 [2024-11-28 03:11:52,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:11:52,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-11-28 03:11:52,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/93e735acc/fc14a7bce2014cd5bdaa97d683946323/FLAG890eba6a2 [2024-11-28 03:11:52,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/data/93e735acc/fc14a7bce2014cd5bdaa97d683946323 [2024-11-28 03:11:52,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:11:52,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:11:52,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:52,184 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:11:52,189 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:11:52,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:52" (1/1) ... [2024-11-28 03:11:52,192 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e63c267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:52, skipping insertion in model container [2024-11-28 03:11:52,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:52" (1/1) ... [2024-11-28 03:11:52,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:11:53,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:53,512 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:11:53,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:53,835 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:11:53,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53 WrapperNode [2024-11-28 03:11:53,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:53,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:53,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:11:53,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:11:53,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,900 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-11-28 03:11:53,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:53,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:11:53,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:11:53,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:11:53,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,939 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-28 03:11:53,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,952 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,953 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:11:53,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:11:53,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:11:53,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:11:53,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (1/1) ... [2024-11-28 03:11:53,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:54,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:54,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:11:54,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:11:54,047 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-28 03:11:54,047 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-28 03:11:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:11:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:11:54,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:11:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:11:54,257 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:11:54,259 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:11:54,476 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-28 03:11:54,476 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:11:54,490 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:11:54,490 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:11:54,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:54 BoogieIcfgContainer [2024-11-28 03:11:54,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:11:54,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:11:54,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:11:54,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:11:54,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:52" (1/3) ... [2024-11-28 03:11:54,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48da89b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:54, skipping insertion in model container [2024-11-28 03:11:54,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:53" (2/3) ... [2024-11-28 03:11:54,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48da89b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:54, skipping insertion in model container [2024-11-28 03:11:54,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:54" (3/3) ... [2024-11-28 03:11:54,503 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-11-28 03:11:54,521 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:11:54,523 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 03:11:54,587 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:11:54,603 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;@48e97579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:11:54,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:11:54,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:11:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:11:54,612 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:54,613 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:54,613 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 03:11:54,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2024-11-28 03:11:54,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:54,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425512926] [2024-11-28 03:11:54,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:54,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:54,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:54,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:54,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:11:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:54,814 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:11:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:11:54,882 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 03:11:54,884 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:11:54,886 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-28 03:11:54,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-28 03:11:54,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:11:55,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:55,097 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-28 03:11:55,126 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:11:55,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:11:55 BoogieIcfgContainer [2024-11-28 03:11:55,134 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:11:55,135 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:11:55,135 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:11:55,135 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:11:55,135 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:54" (3/4) ... [2024-11-28 03:11:55,140 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:11:55,141 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:11:55,143 INFO L158 Benchmark]: Toolchain (without parser) took 2961.44ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 57.4MB in the end (delta: 24.2MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2024-11-28 03:11:55,143 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 83.9MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:55,144 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1653.55ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 61.6MB in the end (delta: 19.9MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-11-28 03:11:55,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.91ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 59.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:55,145 INFO L158 Benchmark]: Boogie Preprocessor took 62.77ms. Allocated memory is still 109.1MB. Free memory was 59.0MB in the beginning and 57.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:55,146 INFO L158 Benchmark]: RCFGBuilder took 520.86ms. Allocated memory is still 109.1MB. Free memory was 57.0MB in the beginning and 74.8MB in the end (delta: -17.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-11-28 03:11:55,146 INFO L158 Benchmark]: TraceAbstraction took 639.85ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 57.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:11:55,147 INFO L158 Benchmark]: Witness Printer took 7.02ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:11:55,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 83.9MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1653.55ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 61.6MB in the end (delta: 19.9MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.91ms. Allocated memory is still 109.1MB. Free memory was 61.6MB in the beginning and 59.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.77ms. Allocated memory is still 109.1MB. Free memory was 59.0MB in the beginning and 57.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 520.86ms. Allocated memory is still 109.1MB. Free memory was 57.0MB in the beginning and 74.8MB in the end (delta: -17.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * TraceAbstraction took 639.85ms. Allocated memory is still 109.1MB. Free memory was 74.3MB in the beginning and 57.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.02ms. Allocated memory is still 109.1MB. Free memory is still 57.4MB. 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_31_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 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: 1568]: 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: 0.5s, 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=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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:11:55,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c935856-5208-4f7a-9ca8-2e3c8708df29/bin/uautomizer-verify-aQ6SnzHsRB/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