./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_10_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 74fc76331e93b7cf9a1f3d8b0dd7e4bbaf91830d3621c225e9d08f93b4a5eb9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:42:32,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:42:32,785 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-28 03:42:32,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:42:32,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:42:32,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:42:32,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:42:32,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:42:32,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:42:32,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:42:32,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:42:32,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:42:32,836 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:42:32,836 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:42:32,836 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:42:32,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:42:32,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:42:32,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:42:32,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:42:32,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:42:32,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:42:32,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:42:32,840 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:42:32,840 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:42:32,840 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:42:32,840 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:42:32,840 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:42:32,840 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:42:32,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:42:32,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:42:32,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:42:32,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:32,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:42:32,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:32,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:42:32,842 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:42:32,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:42:32,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:42:32,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:42:32,844 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74fc76331e93b7cf9a1f3d8b0dd7e4bbaf91830d3621c225e9d08f93b4a5eb9a [2024-11-28 03:42:33,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:42:33,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:42:33,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:42:33,154 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:42:33,155 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:42:33,156 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_10_bad.i [2024-11-28 03:42:36,348 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/7bfbe56f5/a8e05a11ed8a42e899b238ccf51ef4ea/FLAGc7eb57077 [2024-11-28 03:42:36,822 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:42:36,823 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_10_bad.i [2024-11-28 03:42:36,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/7bfbe56f5/a8e05a11ed8a42e899b238ccf51ef4ea/FLAGc7eb57077 [2024-11-28 03:42:36,890 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/7bfbe56f5/a8e05a11ed8a42e899b238ccf51ef4ea [2024-11-28 03:42:36,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:42:36,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:42:36,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:42:36,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:42:36,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:42:36,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:36" (1/1) ... [2024-11-28 03:42:36,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7c6679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:36, skipping insertion in model container [2024-11-28 03:42:36,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:36" (1/1) ... [2024-11-28 03:42:36,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:42:38,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:42:38,952 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:42:39,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:42:39,374 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:42:39,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39 WrapperNode [2024-11-28 03:42:39,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:42:39,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:42:39,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:42:39,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:42:39,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,435 INFO L138 Inliner]: procedures = 936, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-11-28 03:42:39,435 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:42:39,436 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:42:39,436 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:42:39,436 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:42:39,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,480 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-28 03:42:39,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,492 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,498 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:42:39,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:42:39,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:42:39,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:42:39,512 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (1/1) ... [2024-11-28 03:42:39,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:39,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:39,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:42:39,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:42:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:42:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:42:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:42:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-28 03:42:39,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-28 03:42:39,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:42:39,731 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:42:39,732 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:42:39,862 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-28 03:42:39,862 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:42:39,879 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:42:39,879 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:42:39,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:39 BoogieIcfgContainer [2024-11-28 03:42:39,880 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:42:39,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:42:39,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:42:39,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:42:39,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:42:36" (1/3) ... [2024-11-28 03:42:39,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1715f21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:42:39, skipping insertion in model container [2024-11-28 03:42:39,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:39" (2/3) ... [2024-11-28 03:42:39,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1715f21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:42:39, skipping insertion in model container [2024-11-28 03:42:39,893 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:39" (3/3) ... [2024-11-28 03:42:39,894 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_10_bad.i [2024-11-28 03:42:39,910 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:42:39,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_10_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 03:42:39,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:42:39,996 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;@51add6f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:42:39,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:42:40,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:42:40,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 03:42:40,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:40,011 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:40,011 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 03:42:40,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:40,018 INFO L85 PathProgramCache]: Analyzing trace with hash -152054014, now seen corresponding path program 1 times [2024-11-28 03:42:40,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:40,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520062597] [2024-11-28 03:42:40,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:40,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:40,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:40,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520062597] [2024-11-28 03:42:40,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520062597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:40,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:40,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 03:42:40,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636086] [2024-11-28 03:42:40,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:40,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:42:40,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:40,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:42:40,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:42:40,251 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 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) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:42:40,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:42:40,268 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2024-11-28 03:42:40,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:42:40,270 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-28 03:42:40,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:42:40,274 INFO L225 Difference]: With dead ends: 24 [2024-11-28 03:42:40,275 INFO L226 Difference]: Without dead ends: 16 [2024-11-28 03:42:40,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:42:40,281 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:42:40,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:42:40,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-28 03:42:40,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-28 03:42:40,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:42:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2024-11-28 03:42:40,324 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2024-11-28 03:42:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:42:40,327 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2024-11-28 03:42:40,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:42:40,327 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-11-28 03:42:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:42:40,330 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:40,331 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:40,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:42:40,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 03:42:40,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:40,332 INFO L85 PathProgramCache]: Analyzing trace with hash -418707075, now seen corresponding path program 1 times [2024-11-28 03:42:40,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:40,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540257797] [2024-11-28 03:42:40,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:40,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:40,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:42:40,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540257797] [2024-11-28 03:42:40,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540257797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:40,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:40,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:42:40,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187149785] [2024-11-28 03:42:40,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:40,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:42:40,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:42:40,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:42:40,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:42:40,565 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:42:40,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:42:40,588 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-28 03:42:40,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:42:40,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-28 03:42:40,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:42:40,589 INFO L225 Difference]: With dead ends: 20 [2024-11-28 03:42:40,590 INFO L226 Difference]: Without dead ends: 16 [2024-11-28 03:42:40,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:42:40,591 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:42:40,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:42:40,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-28 03:42:40,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-28 03:42:40,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:42:40,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-28 03:42:40,599 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2024-11-28 03:42:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:42:40,599 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-28 03:42:40,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:42:40,599 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-28 03:42:40,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 03:42:40,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:40,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:40,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:42:40,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 03:42:40,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:40,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1052736290, now seen corresponding path program 1 times [2024-11-28 03:42:40,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:42:40,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800673888] [2024-11-28 03:42:40,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:40,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:42:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:42:40,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712376374] [2024-11-28 03:42:40,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:40,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:40,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:40,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:42:40,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:42:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:42:40,820 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:42:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:42:40,882 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:42:40,883 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:42:40,883 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-28 03:42:40,885 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-28 03:42:40,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:42:41,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:41,094 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 03:42:41,123 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:42:41,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:42:41 BoogieIcfgContainer [2024-11-28 03:42:41,127 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:42:41,128 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:42:41,128 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:42:41,128 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:42:41,129 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:39" (3/4) ... [2024-11-28 03:42:41,131 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:42:41,132 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:42:41,133 INFO L158 Benchmark]: Toolchain (without parser) took 4239.46ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 46.9MB in the end (delta: 41.0MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-28 03:42:41,134 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:41,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2477.61ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 57.0MB in the end (delta: 30.9MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2024-11-28 03:42:41,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.29ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 53.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:41,135 INFO L158 Benchmark]: Boogie Preprocessor took 70.95ms. Allocated memory is still 117.4MB. Free memory was 53.8MB in the beginning and 52.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:41,135 INFO L158 Benchmark]: RCFGBuilder took 372.47ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 40.3MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:42:41,136 INFO L158 Benchmark]: TraceAbstraction took 1243.45ms. Allocated memory is still 117.4MB. Free memory was 39.6MB in the beginning and 46.9MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:41,136 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 117.4MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:41,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2477.61ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 57.0MB in the end (delta: 30.9MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.29ms. Allocated memory is still 117.4MB. Free memory was 57.0MB in the beginning and 53.8MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.95ms. Allocated memory is still 117.4MB. Free memory was 53.8MB in the beginning and 52.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 372.47ms. Allocated memory is still 117.4MB. Free memory was 52.5MB in the beginning and 40.3MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.45ms. Allocated memory is still 117.4MB. Free memory was 39.6MB in the beginning and 46.9MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 117.4MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842, overapproximation of fgets at line 1840. 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] [L1861] 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) [L1861] 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] [L1862] CALL CWE190_Integer_Overflow__int_fgets_square_10_bad() [L1834] int data; [L1835] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1836] COND TRUE \read(globalTrue) [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1850] COND TRUE \read(globalTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1853] data * 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: 1853]: 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: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:42:41,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 74fc76331e93b7cf9a1f3d8b0dd7e4bbaf91830d3621c225e9d08f93b4a5eb9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:42:43,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:42:43,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-28 03:42:43,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:42:43,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:42:43,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-28 03:42:44,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:42:44,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:42:44,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:42:44,047 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:42:44,048 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:42:44,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:42:44,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:42:44,048 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:42:44,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:42:44,049 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:42:44,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:42:44,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:42:44,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:42:44,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:42:44,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:42:44,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:42:44,050 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:42:44,050 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:42:44,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:42:44,051 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:42:44,051 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:42:44,051 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:42:44,051 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:42:44,051 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:42:44,051 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:42:44,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:42:44,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:42:44,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:42:44,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:44,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:42:44,053 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:42:44,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:42:44,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:42:44,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:44,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:42:44,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:42:44,054 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:42:44,054 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:42:44,054 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:42:44,054 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:42:44,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:42:44,055 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:42:44,055 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:42:44,055 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:42:44,055 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74fc76331e93b7cf9a1f3d8b0dd7e4bbaf91830d3621c225e9d08f93b4a5eb9a [2024-11-28 03:42:44,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:42:44,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:42:44,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:42:44,400 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:42:44,400 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:42:44,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_10_bad.i [2024-11-28 03:42:47,457 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/784b1fde2/7795e05623f8464a896718190c2cfb2f/FLAG919f499ac [2024-11-28 03:42:48,097 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:42:48,099 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_10_bad.i [2024-11-28 03:42:48,143 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/784b1fde2/7795e05623f8464a896718190c2cfb2f/FLAG919f499ac [2024-11-28 03:42:48,164 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/data/784b1fde2/7795e05623f8464a896718190c2cfb2f [2024-11-28 03:42:48,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:42:48,171 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:42:48,174 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:42:48,174 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:42:48,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:42:48,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64fa04a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:48, skipping insertion in model container [2024-11-28 03:42:48,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:42:48" (1/1) ... [2024-11-28 03:42:48,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:42:50,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:42:50,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:42:50,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:42:50,887 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:42:50,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50 WrapperNode [2024-11-28 03:42:50,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:42:50,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:42:50,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:42:50,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:42:50,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:50,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:50,962 INFO L138 Inliner]: procedures = 941, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-11-28 03:42:50,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:42:50,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:42:50,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:42:50,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:42:50,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:50,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:50,978 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:50,992 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-28 03:42:50,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:50,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:51,004 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:51,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:51,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:51,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:51,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:51,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:42:51,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:42:51,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:42:51,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:42:51,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (1/1) ... [2024-11-28 03:42:51,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:42:51,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:51,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:42:51,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:42:51,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:42:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:42:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:42:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-28 03:42:51,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-28 03:42:51,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:42:51,308 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:42:51,311 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:42:56,605 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-28 03:42:56,605 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:42:56,617 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:42:56,620 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:42:56,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:56 BoogieIcfgContainer [2024-11-28 03:42:56,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:42:56,625 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:42:56,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:42:56,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:42:56,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:42:48" (1/3) ... [2024-11-28 03:42:56,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fe7d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:42:56, skipping insertion in model container [2024-11-28 03:42:56,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:42:50" (2/3) ... [2024-11-28 03:42:56,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34fe7d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:42:56, skipping insertion in model container [2024-11-28 03:42:56,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:56" (3/3) ... [2024-11-28 03:42:56,642 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_10_bad.i [2024-11-28 03:42:56,660 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:42:56,661 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_10_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-28 03:42:56,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:42:56,730 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;@6a6197e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:42:56,730 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 03:42:56,735 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:42:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 03:42:56,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:56,743 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:56,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 03:42:56,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash -152054014, now seen corresponding path program 1 times [2024-11-28 03:42:56,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:42:56,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [116265457] [2024-11-28 03:42:56,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:56,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:56,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:56,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:42:56,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:42:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:42:56,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:42:56,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:42:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:42:56,965 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:42:56,965 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:42:56,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116265457] [2024-11-28 03:42:56,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116265457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:42:56,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:42:56,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:42:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059795038] [2024-11-28 03:42:56,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:42:56,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:42:56,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:42:57,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:42:57,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:42:57,008 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 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) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:42:57,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:42:57,067 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2024-11-28 03:42:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:42:57,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-28 03:42:57,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:42:57,078 INFO L225 Difference]: With dead ends: 50 [2024-11-28 03:42:57,079 INFO L226 Difference]: Without dead ends: 17 [2024-11-28 03:42:57,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:42:57,088 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:42:57,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 56 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:42:57,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-28 03:42:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-28 03:42:57,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 03:42:57,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-28 03:42:57,137 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2024-11-28 03:42:57,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:42:57,139 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-28 03:42:57,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:42:57,140 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-28 03:42:57,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 03:42:57,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:42:57,141 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:42:57,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:42:57,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:57,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-28 03:42:57,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:42:57,343 INFO L85 PathProgramCache]: Analyzing trace with hash -104588099, now seen corresponding path program 1 times [2024-11-28 03:42:57,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:42:57,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730690295] [2024-11-28 03:42:57,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:42:57,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:57,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:42:57,350 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:42:57,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:42:57,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:42:57,942 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:42:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:42:59,737 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 03:42:59,737 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:42:59,739 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-28 03:42:59,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-28 03:42:59,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:42:59,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:42:59,944 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 03:42:59,967 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:42:59,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:42:59 BoogieIcfgContainer [2024-11-28 03:42:59,971 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:42:59,971 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:42:59,971 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:42:59,972 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:42:59,973 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:42:56" (3/4) ... [2024-11-28 03:42:59,975 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:42:59,976 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:42:59,977 INFO L158 Benchmark]: Toolchain (without parser) took 11806.62ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 87.5MB in the beginning and 133.4MB in the end (delta: -45.9MB). Peak memory consumption was 105.4MB. Max. memory is 16.1GB. [2024-11-28 03:42:59,977 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:59,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2716.24ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 87.4MB in the beginning and 188.0MB in the end (delta: -100.7MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2024-11-28 03:42:59,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.47ms. Allocated memory is still 268.4MB. Free memory was 188.0MB in the beginning and 184.0MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:59,978 INFO L158 Benchmark]: Boogie Preprocessor took 63.18ms. Allocated memory is still 268.4MB. Free memory was 184.0MB in the beginning and 182.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:59,979 INFO L158 Benchmark]: RCFGBuilder took 5593.07ms. Allocated memory is still 268.4MB. Free memory was 182.3MB in the beginning and 166.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:42:59,979 INFO L158 Benchmark]: TraceAbstraction took 3346.01ms. Allocated memory is still 268.4MB. Free memory was 166.0MB in the beginning and 134.1MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 03:42:59,979 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 268.4MB. Free memory was 134.1MB in the beginning and 133.4MB in the end (delta: 662.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:59,982 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2716.24ms. Allocated memory was 117.4MB in the beginning and 268.4MB in the end (delta: 151.0MB). Free memory was 87.4MB in the beginning and 188.0MB in the end (delta: -100.7MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.47ms. Allocated memory is still 268.4MB. Free memory was 188.0MB in the beginning and 184.0MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.18ms. Allocated memory is still 268.4MB. Free memory was 184.0MB in the beginning and 182.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 5593.07ms. Allocated memory is still 268.4MB. Free memory was 182.3MB in the beginning and 166.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3346.01ms. Allocated memory is still 268.4MB. Free memory was 166.0MB in the beginning and 134.1MB in the end (delta: 31.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 268.4MB. Free memory was 134.1MB in the beginning and 133.4MB in the end (delta: 662.3kB). 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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842, overapproximation of fgets at line 1840. 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] [L1861] 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) [L1861] 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] [L1862] CALL CWE190_Integer_Overflow__int_fgets_square_10_bad() [L1834] int data; [L1835] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1836] COND TRUE \read(globalTrue) [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1850] COND TRUE \read(globalTrue) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1853] data * 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: 1853]: 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: 3.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 32 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:43:00,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8981b8d8-ac7d-4024-aa97-bb7a63c70fd0/bin/uautomizer-verify-aQ6SnzHsRB/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