./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:05:45,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:05:45,340 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-01 23:05:45,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:05:45,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:05:45,368 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:05:45,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:05:45,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:05:45,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:05:45,369 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:05:45,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:05:45,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:05:45,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:05:45,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:05:45,370 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:05:45,371 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:05:45,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:45,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:45,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:05:45,372 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:05:45,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:05:45,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:05:45,373 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:05:45,373 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:05:45,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:05:45,373 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_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c [2024-12-01 23:05:45,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:05:45,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:05:45,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:05:45,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:05:45,617 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:05:45,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-12-01 23:05:48,302 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/fd639696e/4035601f33824a6988599cf62b6a9bd4/FLAG3fa45a8dd [2024-12-01 23:05:48,611 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:05:48,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-12-01 23:05:48,636 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/fd639696e/4035601f33824a6988599cf62b6a9bd4/FLAG3fa45a8dd [2024-12-01 23:05:48,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/fd639696e/4035601f33824a6988599cf62b6a9bd4 [2024-12-01 23:05:48,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:05:48,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:05:48,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:05:48,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:05:48,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:05:48,664 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:05:48" (1/1) ... [2024-12-01 23:05:48,665 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f0e0af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:48, skipping insertion in model container [2024-12-01 23:05:48,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:05:48" (1/1) ... [2024-12-01 23:05:48,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:05:49,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:05:49,463 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:05:49,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:05:49,646 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:05:49,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49 WrapperNode [2024-12-01 23:05:49,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:05:49,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:05:49,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:05:49,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:05:49,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,684 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,704 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-12-01 23:05:49,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:05:49,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:05:49,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:05:49,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:05:49,713 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,715 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,727 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]. [2024-12-01 23:05:49,727 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,727 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,730 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:05:49,736 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:05:49,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:05:49,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:05:49,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (1/1) ... [2024-12-01 23:05:49,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:49,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:05:49,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:05:49,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:05:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-01 23:05:49,794 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-01 23:05:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:05:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:05:49,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:05:49,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:05:49,916 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:05:49,918 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:05:50,031 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-01 23:05:50,031 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:05:50,042 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:05:50,042 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-01 23:05:50,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:50 BoogieIcfgContainer [2024-12-01 23:05:50,043 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:05:50,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:05:50,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:05:50,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:05:50,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:05:48" (1/3) ... [2024-12-01 23:05:50,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbe01b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:05:50, skipping insertion in model container [2024-12-01 23:05:50,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:49" (2/3) ... [2024-12-01 23:05:50,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbe01b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:05:50, skipping insertion in model container [2024-12-01 23:05:50,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:50" (3/3) ... [2024-12-01 23:05:50,054 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-12-01 23:05:50,072 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:05:50,074 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-01 23:05:50,133 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:05:50,147 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;@815d7dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:05:50,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-01 23:05:50,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-01 23:05:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-01 23:05:50,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:50,159 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:50,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-01 23:05:50,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:50,166 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2024-12-01 23:05:50,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:05:50,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404869048] [2024-12-01 23:05:50,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:50,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:05:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:05:50,303 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 23:05:50,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:05:50,344 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 23:05:50,348 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 23:05:50,349 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-01 23:05:50,351 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-01 23:05:50,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:05:50,355 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-01 23:05:50,377 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 23:05:50,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:05:50 BoogieIcfgContainer [2024-12-01 23:05:50,381 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 23:05:50,382 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 23:05:50,382 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 23:05:50,382 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 23:05:50,383 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:50" (3/4) ... [2024-12-01 23:05:50,385 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-01 23:05:50,386 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 23:05:50,387 INFO L158 Benchmark]: Toolchain (without parser) took 1729.79ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 80.6MB in the end (delta: 33.1MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-12-01 23:05:50,387 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:50,388 INFO L158 Benchmark]: CACSL2BoogieTranslator took 988.32ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 53.9MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-01 23:05:50,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.96ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 112.4MB in the end (delta: -58.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-12-01 23:05:50,389 INFO L158 Benchmark]: Boogie Preprocessor took 30.02ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 111.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:50,389 INFO L158 Benchmark]: RCFGBuilder took 306.77ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 98.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 23:05:50,389 INFO L158 Benchmark]: TraceAbstraction took 334.76ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 80.6MB in the end (delta: 17.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 23:05:50,390 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:50,392 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 988.32ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 53.9MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.96ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 112.4MB in the end (delta: -58.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.02ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 111.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.77ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 98.4MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 334.76ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 80.6MB in the end (delta: 17.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 142.6MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-01 23:05:50,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/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_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:05:52,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:05:52,569 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-12-01 23:05:52,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:05:52,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:05:52,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-12-01 23:05:52,600 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:05:52,600 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:05:52,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:05:52,601 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:05:52,601 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:05:52,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:05:52,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:05:52,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:05:52,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 23:05:52,602 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:05:52,603 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:05:52,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:52,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:52,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-01 23:05:52,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:05:52,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:05:52,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:05:52,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:05:52,605 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_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23cf0ffb9f962a6694e05d9cf94d91f079ea00e3188ad6187a3f8468cfb1f91c [2024-12-01 23:05:52,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:05:52,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:05:52,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:05:52,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:05:52,891 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:05:52,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-12-01 23:05:55,628 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/8347a608f/c91206e9fbfc45938d54bd34365e4df9/FLAG4013c93dd [2024-12-01 23:05:55,912 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:05:55,913 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-12-01 23:05:55,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/8347a608f/c91206e9fbfc45938d54bd34365e4df9/FLAG4013c93dd [2024-12-01 23:05:55,949 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/data/8347a608f/c91206e9fbfc45938d54bd34365e4df9 [2024-12-01 23:05:55,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:05:55,952 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:05:55,954 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:05:55,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:05:55,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:05:55,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e154ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:55, skipping insertion in model container [2024-12-01 23:05:55,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:05:55" (1/1) ... [2024-12-01 23:05:55,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:05:56,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:05:56,751 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:05:56,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:05:56,956 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:05:56,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56 WrapperNode [2024-12-01 23:05:56,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:05:56,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:05:56,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:05:56,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:05:56,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:56,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,002 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-12-01 23:05:57,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:05:57,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:05:57,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:05:57,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:05:57,013 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,016 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,030 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]. [2024-12-01 23:05:57,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,037 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,042 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:05:57,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:05:57,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:05:57,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:05:57,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (1/1) ... [2024-12-01 23:05:57,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:05:57,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:05:57,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:05:57,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:05:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-01 23:05:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-01 23:05:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-01 23:05:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:05:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:05:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:05:57,226 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:05:57,227 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:05:57,350 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-01 23:05:57,351 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:05:57,359 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:05:57,359 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-01 23:05:57,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:57 BoogieIcfgContainer [2024-12-01 23:05:57,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:05:57,362 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:05:57,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:05:57,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:05:57,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:05:55" (1/3) ... [2024-12-01 23:05:57,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b420655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:05:57, skipping insertion in model container [2024-12-01 23:05:57,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:05:56" (2/3) ... [2024-12-01 23:05:57,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b420655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:05:57, skipping insertion in model container [2024-12-01 23:05:57,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:57" (3/3) ... [2024-12-01 23:05:57,369 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i [2024-12-01 23:05:57,381 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:05:57,382 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_31_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-01 23:05:57,426 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:05:57,438 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;@3d3b2074, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:05:57,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-01 23:05:57,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-01 23:05:57,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-01 23:05:57,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:05:57,448 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:05:57,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-01 23:05:57,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:05:57,453 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2024-12-01 23:05:57,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 23:05:57,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [530014810] [2024-12-01 23:05:57,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:05:57,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:05:57,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:05:57,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:05:57,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 23:05:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:05:57,602 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 23:05:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:05:57,649 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-01 23:05:57,651 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 23:05:57,652 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-01 23:05:57,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-01 23:05:57,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 23:05:57,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:05:57,859 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-01 23:05:57,879 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 23:05:57,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:05:57 BoogieIcfgContainer [2024-12-01 23:05:57,883 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 23:05:57,883 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 23:05:57,883 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 23:05:57,884 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 23:05:57,884 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:05:57" (3/4) ... [2024-12-01 23:05:57,887 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-01 23:05:57,887 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 23:05:57,888 INFO L158 Benchmark]: Toolchain (without parser) took 1935.93ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 66.6MB in the beginning and 106.6MB in the end (delta: -40.0MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-12-01 23:05:57,888 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:57,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1003.81ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.3MB in the end (delta: 4.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-01 23:05:57,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.66ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:57,889 INFO L158 Benchmark]: Boogie Preprocessor took 43.17ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:57,890 INFO L158 Benchmark]: RCFGBuilder took 312.73ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 43.9MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 23:05:57,890 INFO L158 Benchmark]: TraceAbstraction took 521.07ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 43.5MB in the beginning and 107.1MB in the end (delta: -63.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:57,891 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 106.6MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:05:57,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1003.81ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.3MB in the end (delta: 4.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.66ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.17ms. Allocated memory is still 92.3MB. Free memory was 59.6MB in the beginning and 57.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.73ms. Allocated memory is still 92.3MB. Free memory was 57.4MB in the beginning and 43.9MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 521.07ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 43.5MB in the beginning and 107.1MB in the end (delta: -63.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 106.6MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-01 23:05:57,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11eadba7-6f2b-487e-a89a-4a74baceb2fd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample