./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:04:18,188 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:04:18,279 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 16:04:18,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:04:18,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:04:18,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:04:18,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:04:18,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:04:18,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:04:18,323 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:04:18,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:04:18,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:04:18,325 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:04:18,325 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:04:18,327 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:04:18,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:04:18,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:04:18,332 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:04:18,332 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:04:18,332 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:04:18,333 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:04:18,333 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:04:18,333 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:04:18,334 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:04:18,334 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:04:18,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:04:18,335 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:04:18,335 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:04:18,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:04:18,336 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:04:18,336 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:04:18,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:18,339 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:04:18,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:04:18,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:04:18,339 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:04:18,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:04:18,340 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:04:18,340 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:04:18,340 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:04:18,341 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:04:18,342 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2024-11-08 16:04:18,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:04:18,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:04:18,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:04:18,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:04:18,660 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:04:18,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i Unable to find full path for "g++" [2024-11-08 16:04:20,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:04:21,138 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:04:21,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-08 16:04:21,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data/1695dbe3c/c6286fccc08c48379cf9569549eeb4bc/FLAGa8f207a76 [2024-11-08 16:04:21,185 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data/1695dbe3c/c6286fccc08c48379cf9569549eeb4bc [2024-11-08 16:04:21,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:04:21,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:04:21,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:21,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:04:21,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:04:21,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7817ca52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:21, skipping insertion in model container [2024-11-08 16:04:21,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:21" (1/1) ... [2024-11-08 16:04:21,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:04:22,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:22,448 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:04:22,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:22,795 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:04:22,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22 WrapperNode [2024-11-08 16:04:22,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:22,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:22,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:04:22,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:04:22,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,876 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2024-11-08 16:04:22,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:22,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:04:22,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:04:22,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:04:22,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,893 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,910 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]. [2024-11-08 16:04:22,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,911 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:04:22,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:04:22,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:04:22,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:04:22,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (1/1) ... [2024-11-08 16:04:22,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:22,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:04:22,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:04:22,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 16:04:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 16:04:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:04:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:04:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:04:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:04:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:04:23,161 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:04:23,163 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:04:23,311 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 16:04:23,311 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:04:23,331 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:04:23,334 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:04:23,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:23 BoogieIcfgContainer [2024-11-08 16:04:23,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:04:23,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:04:23,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:04:23,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:04:23,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:04:21" (1/3) ... [2024-11-08 16:04:23,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cbc544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:23, skipping insertion in model container [2024-11-08 16:04:23,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:22" (2/3) ... [2024-11-08 16:04:23,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25cbc544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:23, skipping insertion in model container [2024-11-08 16:04:23,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:23" (3/3) ... [2024-11-08 16:04:23,355 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-08 16:04:23,373 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:04:23,374 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:04:23,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:04:23,449 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;@2b9bd755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:04:23,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:04:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:04:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 16:04:23,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:23,462 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:23,462 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 16:04:23,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:23,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 16:04:23,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:23,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377378110] [2024-11-08 16:04:23,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:23,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:04:23,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:04:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:04:23,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:04:23,846 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:04:23,850 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 16:04:23,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 16:04:23,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:04:23,863 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:04:23,906 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:04:23,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:04:23 BoogieIcfgContainer [2024-11-08 16:04:23,912 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:04:23,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:04:23,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:04:23,914 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:04:23,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:23" (3/4) ... [2024-11-08 16:04:23,918 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:04:23,919 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:04:23,921 INFO L158 Benchmark]: Toolchain (without parser) took 2729.65ms. Allocated memory was 169.9MB in the beginning and 222.3MB in the end (delta: 52.4MB). Free memory was 126.9MB in the beginning and 139.2MB in the end (delta: -12.3MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-11-08 16:04:23,922 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:04:23,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1602.49ms. Allocated memory was 169.9MB in the beginning and 222.3MB in the end (delta: 52.4MB). Free memory was 126.3MB in the beginning and 181.2MB in the end (delta: -54.9MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. [2024-11-08 16:04:23,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.26ms. Allocated memory is still 222.3MB. Free memory was 181.2MB in the beginning and 178.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:04:23,924 INFO L158 Benchmark]: Boogie Preprocessor took 51.73ms. Allocated memory is still 222.3MB. Free memory was 178.0MB in the beginning and 175.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:04:23,925 INFO L158 Benchmark]: RCFGBuilder took 405.33ms. Allocated memory is still 222.3MB. Free memory was 175.9MB in the beginning and 161.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 16:04:23,926 INFO L158 Benchmark]: TraceAbstraction took 573.90ms. Allocated memory is still 222.3MB. Free memory was 160.2MB in the beginning and 139.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 16:04:23,928 INFO L158 Benchmark]: Witness Printer took 5.82ms. Allocated memory is still 222.3MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:04:23,934 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 96.5MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1602.49ms. Allocated memory was 169.9MB in the beginning and 222.3MB in the end (delta: 52.4MB). Free memory was 126.3MB in the beginning and 181.2MB in the end (delta: -54.9MB). Peak memory consumption was 77.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.26ms. Allocated memory is still 222.3MB. Free memory was 181.2MB in the beginning and 178.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.73ms. Allocated memory is still 222.3MB. Free memory was 178.0MB in the beginning and 175.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.33ms. Allocated memory is still 222.3MB. Free memory was 175.9MB in the beginning and 161.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 573.90ms. Allocated memory is still 222.3MB. Free memory was 160.2MB in the beginning and 139.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.82ms. Allocated memory is still 222.3MB. Free memory is still 139.2MB. 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: 1579]: 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 large string literal at line 1569, 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_postdec_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_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:04:23,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:04:26,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:04:26,997 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 16:04:27,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:04:27,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:04:27,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 16:04:27,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:04:27,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:04:27,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:04:27,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:04:27,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:04:27,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:04:27,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:04:27,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:04:27,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:04:27,052 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:04:27,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:04:27,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:04:27,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:04:27,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:04:27,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:04:27,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:04:27,056 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:04:27,056 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:04:27,056 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:04:27,057 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:04:27,057 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:04:27,057 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:04:27,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:04:27,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:04:27,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:04:27,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:04:27,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:04:27,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:04:27,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:27,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:04:27,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:04:27,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:04:27,061 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:04:27,062 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:04:27,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:04:27,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:04:27,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:04:27,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:04:27,073 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d974245eab3df2f35460010efb4b040318bb30179282ebcb7b5719dec2a7c23b [2024-11-08 16:04:27,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:04:27,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:04:27,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:04:27,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:04:27,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:04:27,600 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i Unable to find full path for "g++" [2024-11-08 16:04:29,722 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:04:30,141 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:04:30,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-08 16:04:30,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data/e896fcea9/3a9c55a838094db3adae2758a9603366/FLAG14a6fb0d5 [2024-11-08 16:04:30,197 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/data/e896fcea9/3a9c55a838094db3adae2758a9603366 [2024-11-08 16:04:30,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:04:30,202 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:04:30,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:30,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:04:30,211 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:04:30,212 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:30" (1/1) ... [2024-11-08 16:04:30,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e3196e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:30, skipping insertion in model container [2024-11-08 16:04:30,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:30" (1/1) ... [2024-11-08 16:04:30,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:04:31,373 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 16:04:31,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:31,394 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:04:31,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:31,649 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:04:31,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31 WrapperNode [2024-11-08 16:04:31,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:31,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:31,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:04:31,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:04:31,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,717 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-08 16:04:31,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:31,718 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:04:31,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:04:31,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:04:31,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,738 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,765 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]. [2024-11-08 16:04:31,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,782 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,799 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:04:31,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:04:31,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:04:31,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:04:31,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (1/1) ... [2024-11-08 16:04:31,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:31,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:04:31,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:04:31,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:04:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 16:04:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 16:04:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:04:31,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 16:04:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 16:04:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:04:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:04:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:04:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 16:04:31,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 16:04:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:04:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 16:04:31,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 16:04:32,099 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:04:32,102 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:04:32,330 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 16:04:32,330 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:04:32,349 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:04:32,351 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:04:32,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:32 BoogieIcfgContainer [2024-11-08 16:04:32,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:04:32,354 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:04:32,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:04:32,358 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:04:32,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:04:30" (1/3) ... [2024-11-08 16:04:32,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8d09f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:32, skipping insertion in model container [2024-11-08 16:04:32,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:31" (2/3) ... [2024-11-08 16:04:32,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e8d09f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:32, skipping insertion in model container [2024-11-08 16:04:32,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:32" (3/3) ... [2024-11-08 16:04:32,363 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_64_bad.i [2024-11-08 16:04:32,381 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:04:32,381 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:04:32,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:04:32,461 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;@4a964691, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:04:32,461 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:04:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:04:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 16:04:32,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:32,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:32,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 16:04:32,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:32,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 16:04:32,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:04:32,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [217776092] [2024-11-08 16:04:32,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:32,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:04:32,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:04:32,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:04:32,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:04:32,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:04:32,788 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:04:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:04:32,905 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 16:04:32,907 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:04:32,909 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 16:04:32,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 16:04:32,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:04:33,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:04:33,121 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:04:33,159 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:04:33,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:04:33 BoogieIcfgContainer [2024-11-08 16:04:33,168 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:04:33,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:04:33,172 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:04:33,172 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:04:33,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:32" (3/4) ... [2024-11-08 16:04:33,182 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:04:33,184 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:04:33,188 INFO L158 Benchmark]: Toolchain (without parser) took 2986.04ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 54.8MB in the beginning and 73.1MB in the end (delta: -18.3MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-11-08 16:04:33,189 INFO L158 Benchmark]: CDTParser took 4.28ms. Allocated memory is still 79.7MB. Free memory was 56.3MB in the beginning and 56.2MB in the end (delta: 148.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:04:33,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1446.70ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 54.8MB in the beginning and 59.1MB in the end (delta: -4.2MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2024-11-08 16:04:33,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.56ms. Allocated memory is still 107.0MB. Free memory was 59.1MB in the beginning and 55.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 16:04:33,191 INFO L158 Benchmark]: Boogie Preprocessor took 85.09ms. Allocated memory is still 107.0MB. Free memory was 55.9MB in the beginning and 52.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:04:33,192 INFO L158 Benchmark]: RCFGBuilder took 548.01ms. Allocated memory is still 107.0MB. Free memory was 52.8MB in the beginning and 66.3MB in the end (delta: -13.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-11-08 16:04:33,193 INFO L158 Benchmark]: TraceAbstraction took 814.12ms. Allocated memory is still 107.0MB. Free memory was 65.9MB in the beginning and 73.7MB in the end (delta: -7.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 16:04:33,193 INFO L158 Benchmark]: Witness Printer took 13.37ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 73.1MB in the end (delta: 596.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:04:33,197 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.28ms. Allocated memory is still 79.7MB. Free memory was 56.3MB in the beginning and 56.2MB in the end (delta: 148.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1446.70ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 54.8MB in the beginning and 59.1MB in the end (delta: -4.2MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.56ms. Allocated memory is still 107.0MB. Free memory was 59.1MB in the beginning and 55.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.09ms. Allocated memory is still 107.0MB. Free memory was 55.9MB in the beginning and 52.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.01ms. Allocated memory is still 107.0MB. Free memory was 52.8MB in the beginning and 66.3MB in the end (delta: -13.5MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 814.12ms. Allocated memory is still 107.0MB. Free memory was 65.9MB in the beginning and 73.7MB in the end (delta: -7.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 13.37ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 73.1MB in the end (delta: 596.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1579]: 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 large string literal at line 1569, 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_postdec_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_postdec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1579]: 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, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:04:33,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e487e538-0e73-4d1f-9d00-bcf0d39fb7dc/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample