./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:53:10,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:53:10,562 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 07:53:10,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:53:10,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:53:10,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:53:10,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:53:10,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:53:10,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:53:10,587 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:53:10,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:53:10,587 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:53:10,587 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:53:10,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:53:10,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:53:10,588 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:53:10,589 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:53:10,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:53:10,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:53:10,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:53:10,590 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:53:10,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:53:10,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:53:10,591 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:53:10,591 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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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 -> 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 [2024-12-02 07:53:10,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:53:10,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:53:10,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:53:10,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:53:10,806 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:53:10,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-12-02 07:53:13,425 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/270baf808/02c462e4bffe49bfb4a9dd231f4c218c/FLAGf58b94220 [2024-12-02 07:53:13,766 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:53:13,767 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-12-02 07:53:13,787 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/270baf808/02c462e4bffe49bfb4a9dd231f4c218c/FLAGf58b94220 [2024-12-02 07:53:14,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/270baf808/02c462e4bffe49bfb4a9dd231f4c218c [2024-12-02 07:53:14,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:53:14,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:53:14,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:53:14,032 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:53:14,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:53:14,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f08b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14, skipping insertion in model container [2024-12-02 07:53:14,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,076 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:53:14,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:53:14,724 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:53:14,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:53:14,905 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:53:14,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14 WrapperNode [2024-12-02 07:53:14,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:53:14,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:53:14,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:53:14,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:53:14,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,941 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2024-12-02 07:53:14,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:53:14,942 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:53:14,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:53:14,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:53:14,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,965 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]. [2024-12-02 07:53:14,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,970 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:53:14,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:53:14,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:53:14,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:53:14,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (1/1) ... [2024-12-02 07:53:14,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:53:14,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:53:15,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:53:15,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:53:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 07:53:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 07:53:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:53:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:53:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:53:15,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:53:15,125 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:53:15,126 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:53:15,210 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 07:53:15,211 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:53:15,219 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:53:15,220 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:53:15,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:53:15 BoogieIcfgContainer [2024-12-02 07:53:15,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:53:15,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:53:15,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:53:15,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:53:15,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:53:14" (1/3) ... [2024-12-02 07:53:15,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df5d186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:53:15, skipping insertion in model container [2024-12-02 07:53:15,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:14" (2/3) ... [2024-12-02 07:53:15,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df5d186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:53:15, skipping insertion in model container [2024-12-02 07:53:15,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:53:15" (3/3) ... [2024-12-02 07:53:15,229 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-12-02 07:53:15,239 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:53:15,241 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 07:53:15,284 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:53:15,295 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;@15b4e6a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:53:15,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:53:15,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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) [2024-12-02 07:53:15,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 07:53:15,305 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:15,305 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:15,306 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:53:15,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:15,311 INFO L85 PathProgramCache]: Analyzing trace with hash 924028237, now seen corresponding path program 1 times [2024-12-02 07:53:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:15,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64729561] [2024-12-02 07:53:15,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:15,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:53:15,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:53:15,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64729561] [2024-12-02 07:53:15,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64729561] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:15,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:15,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 07:53:15,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301264663] [2024-12-02 07:53:15,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:15,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:53:15,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:53:15,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:53:15,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:53:15,581 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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, 2 states have (on average 5.0) 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) [2024-12-02 07:53:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:15,613 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-12-02 07:53:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:53:15,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) 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 [2024-12-02 07:53:15,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:15,619 INFO L225 Difference]: With dead ends: 23 [2024-12-02 07:53:15,619 INFO L226 Difference]: Without dead ends: 15 [2024-12-02 07:53:15,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:53:15,623 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:53:15,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 37 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:53:15,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-12-02 07:53:15,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-12-02 07:53:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2024-12-02 07:53:15,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-12-02 07:53:15,650 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2024-12-02 07:53:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:15,651 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-12-02 07:53:15,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) 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) [2024-12-02 07:53:15,652 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-02 07:53:15,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 07:53:15,653 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:15,653 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:15,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:53:15,653 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:53:15,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:15,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1419895668, now seen corresponding path program 1 times [2024-12-02 07:53:15,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:53:15,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992468183] [2024-12-02 07:53:15,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:15,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:53:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:53:15,687 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:53:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:53:15,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:53:15,716 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:53:15,717 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 07:53:15,718 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 07:53:15,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:53:15,721 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 07:53:15,738 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:53:15,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:53:15 BoogieIcfgContainer [2024-12-02 07:53:15,741 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:53:15,742 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:53:15,742 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:53:15,742 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:53:15,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:53:15" (3/4) ... [2024-12-02 07:53:15,745 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:53:15,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:53:15,746 INFO L158 Benchmark]: Toolchain (without parser) took 1715.72ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 31.0MB in the end (delta: 57.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-12-02 07:53:15,746 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:15,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 874.64ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 80.4MB in the end (delta: 8.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-12-02 07:53:15,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.84ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:15,747 INFO L158 Benchmark]: Boogie Preprocessor took 34.15ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:15,747 INFO L158 Benchmark]: RCFGBuilder took 243.34ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 64.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:53:15,748 INFO L158 Benchmark]: TraceAbstraction took 519.69ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 31.0MB in the end (delta: 32.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 07:53:15,748 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 117.4MB. Free memory is still 31.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:15,750 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 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 874.64ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 80.4MB in the end (delta: 8.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.84ms. Allocated memory is still 117.4MB. Free memory was 80.4MB in the beginning and 77.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.15ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 243.34ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 64.2MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 519.69ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 31.0MB in the end (delta: 32.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 117.4MB. Free memory is still 31.0MB. 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 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [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 CWE190_Integer_Overflow__int_fgets_preinc_18_bad() [L1550] int data; [L1551] 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] [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] ++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: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 [2024-12-02 07:53:15,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:53:17,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:53:17,865 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-12-02 07:53:17,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:53:17,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:53:17,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-12-02 07:53:17,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:53:17,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:53:17,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:53:17,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:53:17,894 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:53:17,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:53:17,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:53:17,895 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:53:17,895 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:53:17,895 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:53:17,895 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:53:17,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:53:17,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:53:17,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:53:17,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:53:17,896 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:53:17,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:53:17,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:53:17,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:53:17,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:53:17,898 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_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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 -> 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 [2024-12-02 07:53:18,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:53:18,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:53:18,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:53:18,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:53:18,131 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:53:18,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-12-02 07:53:20,773 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/2bf8009a4/bad1353aa47f4293a5208f33015df418/FLAGcf5cab992 [2024-12-02 07:53:21,070 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:53:21,070 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-12-02 07:53:21,091 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/2bf8009a4/bad1353aa47f4293a5208f33015df418/FLAGcf5cab992 [2024-12-02 07:53:21,106 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/data/2bf8009a4/bad1353aa47f4293a5208f33015df418 [2024-12-02 07:53:21,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:53:21,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:53:21,111 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:53:21,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:53:21,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:53:21,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:21" (1/1) ... [2024-12-02 07:53:21,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e743079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:21, skipping insertion in model container [2024-12-02 07:53:21,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:21" (1/1) ... [2024-12-02 07:53:21,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:53:21,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:53:21,839 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:53:21,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:53:22,015 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:53:22,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22 WrapperNode [2024-12-02 07:53:22,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:53:22,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:53:22,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:53:22,016 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:53:22,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,057 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-12-02 07:53:22,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:53:22,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:53:22,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:53:22,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:53:22,066 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,069 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,081 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]. [2024-12-02 07:53:22,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,089 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:53:22,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:53:22,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:53:22,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:53:22,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (1/1) ... [2024-12-02 07:53:22,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:53:22,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:53:22,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:53:22,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:53:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 07:53:22,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 07:53:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:53:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:53:22,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:53:22,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:53:22,270 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:53:22,272 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:53:22,374 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-02 07:53:22,374 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:53:22,384 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:53:22,384 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:53:22,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:53:22 BoogieIcfgContainer [2024-12-02 07:53:22,385 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:53:22,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:53:22,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:53:22,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:53:22,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:53:21" (1/3) ... [2024-12-02 07:53:22,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2046cc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:53:22, skipping insertion in model container [2024-12-02 07:53:22,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:22" (2/3) ... [2024-12-02 07:53:22,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2046cc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:53:22, skipping insertion in model container [2024-12-02 07:53:22,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:53:22" (3/3) ... [2024-12-02 07:53:22,396 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2024-12-02 07:53:22,413 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:53:22,414 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 07:53:22,469 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:53:22,481 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;@1658a898, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:53:22,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:53:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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) [2024-12-02 07:53:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 07:53:22,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:22,493 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:22,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:53:22,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:22,499 INFO L85 PathProgramCache]: Analyzing trace with hash 924028237, now seen corresponding path program 1 times [2024-12-02 07:53:22,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:53:22,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273382364] [2024-12-02 07:53:22,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:22,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:22,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:53:22,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:53:22,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:53:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:53:22,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:53:22,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:53:22,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:53:22,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:53:22,663 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:53:22,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273382364] [2024-12-02 07:53:22,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273382364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:53:22,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:53:22,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:53:22,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476374545] [2024-12-02 07:53:22,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:53:22,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:53:22,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:53:22,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:53:22,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:53:22,689 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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 10.0) internal successors, (10), 2 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) [2024-12-02 07:53:22,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:53:22,699 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-12-02 07:53:22,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:53:22,700 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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 [2024-12-02 07:53:22,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:53:22,706 INFO L225 Difference]: With dead ends: 23 [2024-12-02 07:53:22,706 INFO L226 Difference]: Without dead ends: 15 [2024-12-02 07:53:22,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:53:22,711 INFO L435 NwaCegarLoop]: 25 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, 25 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 [2024-12-02 07:53:22,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:53:22,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-12-02 07:53:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-12-02 07:53:22,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2024-12-02 07:53:22,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-12-02 07:53:22,745 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2024-12-02 07:53:22,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:53:22,746 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-12-02 07:53:22,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 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) [2024-12-02 07:53:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-02 07:53:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 07:53:22,747 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:53:22,747 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:53:22,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:53:22,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:22,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:53:22,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:53:22,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1419895668, now seen corresponding path program 1 times [2024-12-02 07:53:22,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:53:22,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1659016560] [2024-12-02 07:53:22,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:53:22,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:22,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:53:22,951 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:53:22,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:53:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:53:23,034 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:53:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:53:23,070 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 07:53:23,071 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:53:23,072 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 07:53:23,073 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 07:53:23,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:53:23,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:53:23,276 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 07:53:23,293 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:53:23,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:53:23 BoogieIcfgContainer [2024-12-02 07:53:23,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:53:23,297 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:53:23,297 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:53:23,297 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:53:23,298 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:53:22" (3/4) ... [2024-12-02 07:53:23,300 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:53:23,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:53:23,301 INFO L158 Benchmark]: Toolchain (without parser) took 2191.52ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 45.2MB in the end (delta: 21.3MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-12-02 07:53:23,302 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:23,302 INFO L158 Benchmark]: CACSL2BoogieTranslator took 904.32ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.0MB in the end (delta: 4.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-02 07:53:23,302 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.77ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:23,302 INFO L158 Benchmark]: Boogie Preprocessor took 39.99ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:23,303 INFO L158 Benchmark]: RCFGBuilder took 285.53ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 43.9MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:53:23,303 INFO L158 Benchmark]: TraceAbstraction took 909.18ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 45.2MB in the end (delta: -1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:23,303 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 45.2MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:53:23,305 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 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 904.32ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.0MB in the end (delta: 4.2MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.77ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.99ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.53ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 43.9MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 909.18ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 45.2MB in the end (delta: -1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 45.2MB 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 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [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 CWE190_Integer_Overflow__int_fgets_preinc_18_bad() [L1550] int data; [L1551] 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] [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] ++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: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 1 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 [2024-12-02 07:53:23,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c52de8a-0a5c-4b3a-9709-3e1758152a85/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