./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_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_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/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_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/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_5fafc1c9-d015-49dd-8215-dff540a3a215/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 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:25:30,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:25:30,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 18:25:30,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:25:30,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:25:30,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:25:30,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:25:30,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:25:30,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:25:30,957 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:25:30,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:25:30,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:25:30,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:25:30,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:25:30,959 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:25:30,959 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:25:30,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:25:30,960 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:25:30,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:25:30,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:25:30,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:25:30,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:25:30,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:25:30,965 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:25:30,965 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:25:30,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:25:30,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:25:30,966 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:25:30,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:25:30,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:25:30,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:25:30,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:25:30,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:25:30,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:25:30,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:25:30,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:25:30,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:25:30,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:25:30,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:25:30,974 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:25:30,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:25:30,979 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_5fafc1c9-d015-49dd-8215-dff540a3a215/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 [2024-11-08 18:25:31,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:25:31,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:25:31,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:25:31,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:25:31,331 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:25:31,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i Unable to find full path for "g++" [2024-11-08 18:25:33,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:25:34,019 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:25:34,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-11-08 18:25:34,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data/762260ef0/ad9207912c1848ff83ab31ac0dd0b250/FLAGf65f1aaef [2024-11-08 18:25:34,116 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data/762260ef0/ad9207912c1848ff83ab31ac0dd0b250 [2024-11-08 18:25:34,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:25:34,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:25:34,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:25:34,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:25:34,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:25:34,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:25:34" (1/1) ... [2024-11-08 18:25:34,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8111d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:34, skipping insertion in model container [2024-11-08 18:25:34,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:25:34" (1/1) ... [2024-11-08 18:25:34,240 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:25:35,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:25:35,614 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:25:35,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:25:36,028 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:25:36,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36 WrapperNode [2024-11-08 18:25:36,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:25:36,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:25:36,031 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:25:36,031 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:25:36,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,128 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-08 18:25:36,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:25:36,130 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:25:36,130 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:25:36,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:25:36,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,171 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2024-11-08 18:25:36,172 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,172 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:25:36,192 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:25:36,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:25:36,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:25:36,193 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (1/1) ... [2024-11-08 18:25:36,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:25:36,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:25:36,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:25:36,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:25:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:25:36,310 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:25:36,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:25:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:25:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:25:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:25:36,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:25:36,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:25:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:25:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:25:36,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:25:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:25:36,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:25:36,587 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:25:36,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:25:36,802 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 18:25:36,802 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:25:36,819 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:25:36,820 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:25:36,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:36 BoogieIcfgContainer [2024-11-08 18:25:36,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:25:36,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:25:36,826 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:25:36,832 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:25:36,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:25:34" (1/3) ... [2024-11-08 18:25:36,834 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5d7aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:25:36, skipping insertion in model container [2024-11-08 18:25:36,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:36" (2/3) ... [2024-11-08 18:25:36,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5d7aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:25:36, skipping insertion in model container [2024-11-08 18:25:36,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:36" (3/3) ... [2024-11-08 18:25:36,839 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-11-08 18:25:36,863 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:25:36,863 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:25:36,975 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:25:36,983 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;@58e60bda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:25:36,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:25:36,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:25:37,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:25:37,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:25:37,006 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:25:37,007 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:25:37,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:25:37,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:25:37,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:25:37,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140403507] [2024-11-08 18:25:37,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:25:37,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:25:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:25:37,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:25:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:25:37,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:25:37,411 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:25:37,413 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:25:37,416 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:25:37,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:25:37,421 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:25:37,455 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:25:37,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:25:37 BoogieIcfgContainer [2024-11-08 18:25:37,459 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:25:37,460 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:25:37,460 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:25:37,460 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:25:37,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:36" (3/4) ... [2024-11-08 18:25:37,465 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:25:37,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:25:37,467 INFO L158 Benchmark]: Toolchain (without parser) took 3343.57ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 99.2MB in the beginning and 92.2MB in the end (delta: 7.0MB). Peak memory consumption was 72.1MB. Max. memory is 16.1GB. [2024-11-08 18:25:37,469 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 104.9MB. Free memory was 56.3MB in the beginning and 56.1MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:25:37,471 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1902.74ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 98.8MB in the beginning and 134.1MB in the end (delta: -35.3MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-11-08 18:25:37,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.77ms. Allocated memory is still 197.1MB. Free memory was 134.1MB in the beginning and 131.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:25:37,473 INFO L158 Benchmark]: Boogie Preprocessor took 60.77ms. Allocated memory is still 197.1MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:25:37,474 INFO L158 Benchmark]: RCFGBuilder took 628.73ms. Allocated memory is still 197.1MB. Free memory was 128.9MB in the beginning and 114.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:25:37,475 INFO L158 Benchmark]: TraceAbstraction took 633.71ms. Allocated memory is still 197.1MB. Free memory was 113.2MB in the beginning and 92.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 18:25:37,476 INFO L158 Benchmark]: Witness Printer took 6.20ms. Allocated memory is still 197.1MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:25:37,480 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 104.9MB. Free memory was 56.3MB in the beginning and 56.1MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1902.74ms. Allocated memory was 136.3MB in the beginning and 197.1MB in the end (delta: 60.8MB). Free memory was 98.8MB in the beginning and 134.1MB in the end (delta: -35.3MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.77ms. Allocated memory is still 197.1MB. Free memory was 134.1MB in the beginning and 131.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.77ms. Allocated memory is still 197.1MB. Free memory was 131.0MB in the beginning and 128.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.73ms. Allocated memory is still 197.1MB. Free memory was 128.9MB in the beginning and 114.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 633.71ms. Allocated memory is still 197.1MB. Free memory was 113.2MB in the beginning and 92.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 6.20ms. Allocated memory is still 197.1MB. Free memory is still 92.2MB. 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: 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 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. 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] [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={14:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_predec_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] --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: 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:25:37,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/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_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/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_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/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_5fafc1c9-d015-49dd-8215-dff540a3a215/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 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:25:40,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:25:40,612 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 18:25:40,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:25:40,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:25:40,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 18:25:40,689 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:25:40,690 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:25:40,691 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:25:40,692 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:25:40,692 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:25:40,693 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:25:40,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:25:40,696 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:25:40,697 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:25:40,701 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:25:40,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:25:40,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:25:40,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:25:40,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:25:40,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:25:40,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:25:40,707 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:25:40,707 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:25:40,708 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:25:40,708 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:25:40,708 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:25:40,709 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:25:40,709 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:25:40,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:25:40,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:25:40,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:25:40,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:25:40,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:25:40,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:25:40,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:25:40,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:25:40,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:25:40,714 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:25:40,714 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:25:40,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:25:40,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:25:40,717 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:25:40,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:25:40,718 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_5fafc1c9-d015-49dd-8215-dff540a3a215/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 [2024-11-08 18:25:41,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:25:41,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:25:41,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:25:41,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:25:41,261 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:25:41,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i Unable to find full path for "g++" [2024-11-08 18:25:43,890 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:25:44,427 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:25:44,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-11-08 18:25:44,468 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data/015f0a2bd/7f52cbf63f91473897221a83cbea0261/FLAG0ca4a5131 [2024-11-08 18:25:44,977 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/data/015f0a2bd/7f52cbf63f91473897221a83cbea0261 [2024-11-08 18:25:44,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:25:44,982 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:25:44,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:25:44,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:25:44,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:25:44,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:25:44" (1/1) ... [2024-11-08 18:25:44,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aaa876f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:44, skipping insertion in model container [2024-11-08 18:25:44,998 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:25:44" (1/1) ... [2024-11-08 18:25:45,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:25:46,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:25:46,658 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:25:46,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:25:46,958 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:25:46,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46 WrapperNode [2024-11-08 18:25:46,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:25:46,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:25:46,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:25:46,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:25:46,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,046 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2024-11-08 18:25:47,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:25:47,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:25:47,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:25:47,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:25:47,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,094 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2024-11-08 18:25:47,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:25:47,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:25:47,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:25:47,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:25:47,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (1/1) ... [2024-11-08 18:25:47,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:25:47,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:25:47,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:25:47,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:25:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:25:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:25:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:25:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:25:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:25:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:25:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:25:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:25:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:25:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:25:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:25:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:25:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:25:47,438 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:25:47,440 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:25:47,658 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 18:25:47,658 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:25:47,680 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:25:47,680 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:25:47,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:47 BoogieIcfgContainer [2024-11-08 18:25:47,681 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:25:47,683 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:25:47,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:25:47,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:25:47,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:25:44" (1/3) ... [2024-11-08 18:25:47,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73911260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:25:47, skipping insertion in model container [2024-11-08 18:25:47,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:25:46" (2/3) ... [2024-11-08 18:25:47,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73911260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:25:47, skipping insertion in model container [2024-11-08 18:25:47,692 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:47" (3/3) ... [2024-11-08 18:25:47,693 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-11-08 18:25:47,714 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:25:47,714 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:25:47,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:25:47,793 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;@7fd0a97a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:25:47,794 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:25:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:25:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:25:47,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:25:47,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:25:47,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:25:47,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:25:47,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:25:47,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:25:47,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689032012] [2024-11-08 18:25:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:25:47,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:25:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:25:47,827 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:25:47,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:25:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:25:48,095 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:25:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:25:48,223 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 18:25:48,226 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:25:48,228 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:25:48,231 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:25:48,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:25:48,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:25:48,442 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:25:48,484 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:25:48,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:25:48 BoogieIcfgContainer [2024-11-08 18:25:48,491 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:25:48,492 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:25:48,494 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:25:48,494 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:25:48,495 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:25:47" (3/4) ... [2024-11-08 18:25:48,500 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:25:48,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:25:48,503 INFO L158 Benchmark]: Toolchain (without parser) took 3520.52ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 59.3MB in the beginning and 72.3MB in the end (delta: -12.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-11-08 18:25:48,504 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 62.9MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:25:48,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1976.84ms. Allocated memory is still 88.1MB. Free memory was 59.1MB in the beginning and 42.8MB in the end (delta: 16.4MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2024-11-08 18:25:48,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.86ms. Allocated memory is still 88.1MB. Free memory was 42.8MB in the beginning and 39.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:25:48,506 INFO L158 Benchmark]: Boogie Preprocessor took 87.71ms. Allocated memory is still 88.1MB. Free memory was 39.4MB in the beginning and 36.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:25:48,507 INFO L158 Benchmark]: RCFGBuilder took 544.46ms. Allocated memory is still 88.1MB. Free memory was 36.5MB in the beginning and 46.8MB in the end (delta: -10.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-11-08 18:25:48,509 INFO L158 Benchmark]: TraceAbstraction took 808.43ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 45.8MB in the beginning and 73.0MB in the end (delta: -27.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 18:25:48,509 INFO L158 Benchmark]: Witness Printer took 9.49ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 72.3MB in the end (delta: 682.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:25:48,518 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 62.9MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1976.84ms. Allocated memory is still 88.1MB. Free memory was 59.1MB in the beginning and 42.8MB in the end (delta: 16.4MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.86ms. Allocated memory is still 88.1MB. Free memory was 42.8MB in the beginning and 39.4MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.71ms. Allocated memory is still 88.1MB. Free memory was 39.4MB in the beginning and 36.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 544.46ms. Allocated memory is still 88.1MB. Free memory was 36.5MB in the beginning and 46.8MB in the end (delta: -10.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * TraceAbstraction took 808.43ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 45.8MB in the beginning and 73.0MB in the end (delta: -27.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 9.49ms. Allocated memory is still 107.0MB. Free memory was 73.0MB in the beginning and 72.3MB in the end (delta: 682.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. 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] [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_predec_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] --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: 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, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:25:48,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fafc1c9-d015-49dd-8215-dff540a3a215/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