./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:34:44,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:34:44,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-23 22:34:44,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:34:44,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:34:45,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:34:45,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:34:45,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:34:45,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:34:45,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:34:45,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:34:45,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:34:45,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:34:45,014 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:34:45,014 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:34:45,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:34:45,015 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:34:45,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:34:45,016 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:34:45,016 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:45,016 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:45,016 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:45,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:45,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:34:45,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:45,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:34:45,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:34:45,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:34:45,022 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_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 [2024-11-23 22:34:45,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:34:45,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:34:45,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:34:45,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:34:45,403 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:34:45,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2024-11-23 22:34:48,614 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/6451733a8/db224e0dfcc14f37a9ef2556ec13b411/FLAG231c47743 [2024-11-23 22:34:49,144 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:34:49,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2024-11-23 22:34:49,183 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/6451733a8/db224e0dfcc14f37a9ef2556ec13b411/FLAG231c47743 [2024-11-23 22:34:49,207 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/6451733a8/db224e0dfcc14f37a9ef2556ec13b411 [2024-11-23 22:34:49,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:34:49,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:34:49,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:49,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:34:49,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:34:49,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:49" (1/1) ... [2024-11-23 22:34:49,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618088f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:49, skipping insertion in model container [2024-11-23 22:34:49,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:49" (1/1) ... [2024-11-23 22:34:49,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:34:50,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:50,422 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:34:50,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:50,715 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:34:50,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50 WrapperNode [2024-11-23 22:34:50,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:50,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:50,718 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:34:50,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:34:50,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,791 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-23 22:34:50,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:50,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:34:50,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:34:50,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:34:50,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,826 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2024-11-23 22:34:50,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,838 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:34:50,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:34:50,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:34:50,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:34:50,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (1/1) ... [2024-11-23 22:34:50,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:50,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:50,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:50,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:34:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 22:34:50,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 22:34:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 22:34:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 22:34:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 22:34:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:34:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:34:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:34:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 22:34:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 22:34:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 22:34:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:34:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:34:51,032 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:34:51,033 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:34:51,150 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-23 22:34:51,150 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:34:51,159 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:34:51,159 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 22:34:51,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:51 BoogieIcfgContainer [2024-11-23 22:34:51,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:34:51,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:34:51,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:34:51,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:34:51,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:49" (1/3) ... [2024-11-23 22:34:51,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6981bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:51, skipping insertion in model container [2024-11-23 22:34:51,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:50" (2/3) ... [2024-11-23 22:34:51,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6981bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:51, skipping insertion in model container [2024-11-23 22:34:51,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:51" (3/3) ... [2024-11-23 22:34:51,168 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2024-11-23 22:34:51,183 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:34:51,184 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-23 22:34:51,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:34:51,248 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;@135d5056, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:34:51,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 22:34:51,253 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) [2024-11-23 22:34:51,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 22:34:51,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:34:51,260 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:34:51,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 22:34:51,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:34:51,266 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2024-11-23 22:34:51,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:34:51,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430567095] [2024-11-23 22:34:51,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:34:51,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:34:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,439 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:34:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:34:51,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:34:51,510 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:34:51,511 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 22:34:51,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 22:34:51,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:34:51,523 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 22:34:51,573 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:34:51,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:34:51 BoogieIcfgContainer [2024-11-23 22:34:51,577 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:34:51,579 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:34:51,579 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:34:51,579 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:34:51,580 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:51" (3/4) ... [2024-11-23 22:34:51,582 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:34:51,583 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:34:51,588 INFO L158 Benchmark]: Toolchain (without parser) took 2373.44ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 41.9MB in the end (delta: 49.0MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,588 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:51,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1503.63ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 79.6MB in the end (delta: 11.0MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.44ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:51,589 INFO L158 Benchmark]: Boogie Preprocessor took 53.60ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 74.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:51,589 INFO L158 Benchmark]: RCFGBuilder took 311.37ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 61.7MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,590 INFO L158 Benchmark]: TraceAbstraction took 415.65ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 41.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:34:51,590 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 117.4MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:34:51,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1503.63ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 79.6MB in the end (delta: 11.0MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.44ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 76.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.60ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 74.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 311.37ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 61.7MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 415.65ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 41.9MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 117.4MB. Free memory is still 41.9MB. 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={14:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1578] 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] [L1580] 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: 1580]: 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 [2024-11-23 22:34:51,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:34:54,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:34:54,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-23 22:34:54,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:34:54,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:34:54,737 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-23 22:34:54,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:34:54,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:34:54,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:34:54,788 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:34:54,789 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:34:54,789 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:34:54,789 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:34:54,790 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:34:54,790 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:34:54,790 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:34:54,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:34:54,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:34:54,792 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:34:54,792 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:34:54,792 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:34:54,793 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:34:54,793 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:34:54,794 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:34:54,794 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 22:34:54,794 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:34:54,794 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 22:34:54,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:34:54,794 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:34:54,794 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:34:54,794 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:34:54,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:54,795 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:54,795 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:54,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:54,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:34:54,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:54,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:54,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:54,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:54,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:34:54,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:34:54,797 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:34:54,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:34:54,797 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:34:54,798 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:34:54,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:34:54,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:34:54,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:34:54,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:34:54,799 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_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 [2024-11-23 22:34:55,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:34:55,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:34:55,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:34:55,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:34:55,216 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:34:55,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2024-11-23 22:34:58,782 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/db3f801cb/8d006152ec16437589c80311e78b2caf/FLAGf120cd0fe [2024-11-23 22:34:59,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:34:59,469 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2024-11-23 22:34:59,506 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/db3f801cb/8d006152ec16437589c80311e78b2caf/FLAGf120cd0fe [2024-11-23 22:34:59,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/data/db3f801cb/8d006152ec16437589c80311e78b2caf [2024-11-23 22:34:59,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:34:59,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:34:59,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:59,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:34:59,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:34:59,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:59" (1/1) ... [2024-11-23 22:34:59,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c46dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:59, skipping insertion in model container [2024-11-23 22:34:59,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:59" (1/1) ... [2024-11-23 22:34:59,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:35:01,114 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 22:35:01,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:35:01,138 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:35:01,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:35:01,448 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:35:01,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01 WrapperNode [2024-11-23 22:35:01,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:35:01,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:35:01,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:35:01,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:35:01,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,505 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,548 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-23 22:35:01,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:35:01,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:35:01,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:35:01,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:35:01,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,576 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,623 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [1, 3]. 75 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 2 writes are split as follows [0, 2]. [2024-11-23 22:35:01,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,644 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,652 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,653 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:35:01,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:35:01,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:35:01,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:35:01,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (1/1) ... [2024-11-23 22:35:01,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:01,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:01,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:35:01,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:35:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 22:35:01,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 22:35:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 22:35:01,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:35:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 22:35:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:35:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:35:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:35:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 22:35:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 22:35:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 22:35:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-23 22:35:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-23 22:35:01,979 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:35:01,981 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:35:02,190 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-23 22:35:02,190 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:35:02,203 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:35:02,203 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 22:35:02,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:02 BoogieIcfgContainer [2024-11-23 22:35:02,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:35:02,207 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:35:02,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:35:02,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:35:02,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:59" (1/3) ... [2024-11-23 22:35:02,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e31878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:02, skipping insertion in model container [2024-11-23 22:35:02,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:01" (2/3) ... [2024-11-23 22:35:02,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e31878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:02, skipping insertion in model container [2024-11-23 22:35:02,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:02" (3/3) ... [2024-11-23 22:35:02,215 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2024-11-23 22:35:02,228 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:35:02,229 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-23 22:35:02,292 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:35:02,311 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;@6914416f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:35:02,311 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 22:35:02,318 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) [2024-11-23 22:35:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-23 22:35:02,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:02,326 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:02,326 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 22:35:02,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2024-11-23 22:35:02,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:35:02,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1483921645] [2024-11-23 22:35:02,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:02,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:02,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:02,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:02,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:35:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:35:02,639 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:35:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:35:02,752 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-23 22:35:02,754 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:35:02,756 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 22:35:02,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 22:35:02,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:35:02,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:02,964 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 22:35:02,989 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:35:02,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:35:02 BoogieIcfgContainer [2024-11-23 22:35:02,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:35:02,997 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:35:02,997 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:35:02,998 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:35:02,998 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:02" (3/4) ... [2024-11-23 22:35:03,002 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:35:03,003 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:35:03,004 INFO L158 Benchmark]: Toolchain (without parser) took 3110.98ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 78.9MB in the end (delta: 9.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-23 22:35:03,004 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:35:03,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1554.92ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 69.0MB in the end (delta: 19.6MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. [2024-11-23 22:35:03,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.76ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 66.1MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:35:03,005 INFO L158 Benchmark]: Boogie Preprocessor took 109.55ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 63.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:35:03,006 INFO L158 Benchmark]: RCFGBuilder took 543.14ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 49.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:35:03,006 INFO L158 Benchmark]: TraceAbstraction took 789.52ms. Allocated memory is still 117.4MB. Free memory was 48.5MB in the beginning and 78.9MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:35:03,006 INFO L158 Benchmark]: Witness Printer took 5.80ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.9MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:35:03,008 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1554.92ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 69.0MB in the end (delta: 19.6MB). Peak memory consumption was 50.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.76ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 66.1MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 109.55ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 63.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 543.14ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 49.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 789.52ms. Allocated memory is still 117.4MB. Free memory was 48.5MB in the beginning and 78.9MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.80ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.9MB in the end (delta: 27.7kB). 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1578] 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] [L1580] 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: 1580]: 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: 0.7s, 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 [2024-11-23 22:35:03,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_737afc8b-cbb0-4fd3-bbe8-76a2a1877e22/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample