./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_11_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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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 6397ae842c5189f360cc6277d874e9b8dba8f11c29e6bed19a6a6af70190e6bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:08:32,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:08:32,946 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 07:08:32,951 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:08:32,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:08:32,974 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:08:32,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:08:32,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:08:32,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:08:32,975 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:08:32,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:08:32,975 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:08:32,976 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:08:32,976 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:08:32,976 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:08:32,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:08:32,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:08:32,976 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:08:32,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:08:32,978 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:08:32,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:08:32,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:08:32,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:08:32,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:08:32,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:08:32,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:08:32,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:08:32,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:08:32,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:08:32,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:08:32,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:08:32,979 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:08:32,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:08:32,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:08:32,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:08:32,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:08:32,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:08:32,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:08:32,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:08:32,980 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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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 -> 6397ae842c5189f360cc6277d874e9b8dba8f11c29e6bed19a6a6af70190e6bc [2024-12-02 07:08:33,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:08:33,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:08:33,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:08:33,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:08:33,239 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:08:33,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i [2024-12-02 07:08:35,873 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/8a412c649/4e488cc76d4842309d374f76e5ac2f93/FLAG7f3e1b7df [2024-12-02 07:08:36,212 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:08:36,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i [2024-12-02 07:08:36,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/8a412c649/4e488cc76d4842309d374f76e5ac2f93/FLAG7f3e1b7df [2024-12-02 07:08:36,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/8a412c649/4e488cc76d4842309d374f76e5ac2f93 [2024-12-02 07:08:36,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:08:36,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:08:36,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:08:36,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:08:36,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:08:36,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:08:36" (1/1) ... [2024-12-02 07:08:36,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36200891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:36, skipping insertion in model container [2024-12-02 07:08:36,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:08:36" (1/1) ... [2024-12-02 07:08:36,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:08:37,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:08:37,093 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:08:37,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:08:37,266 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:08:37,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37 WrapperNode [2024-12-02 07:08:37,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:08:37,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:08:37,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:08:37,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:08:37,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,308 INFO L138 Inliner]: procedures = 498, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-12-02 07:08:37,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:08:37,309 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:08:37,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:08:37,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:08:37,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,332 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 07:08:37,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,336 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:08:37,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:08:37,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:08:37,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:08:37,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (1/1) ... [2024-12-02 07:08:37,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:08:37,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:08:37,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:08:37,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:08:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 07:08:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 07:08:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2024-12-02 07:08:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2024-12-02 07:08:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:08:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:08:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:08:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:08:37,510 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:08:37,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:08:37,612 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-02 07:08:37,612 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:08:37,620 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:08:37,620 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:08:37,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:37 BoogieIcfgContainer [2024-12-02 07:08:37,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:08:37,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:08:37,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:08:37,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:08:37,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:08:36" (1/3) ... [2024-12-02 07:08:37,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c7302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:08:37, skipping insertion in model container [2024-12-02 07:08:37,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:37" (2/3) ... [2024-12-02 07:08:37,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281c7302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:08:37, skipping insertion in model container [2024-12-02 07:08:37,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:37" (3/3) ... [2024-12-02 07:08:37,629 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i [2024-12-02 07:08:37,643 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:08:37,644 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i that has 3 procedures, 31 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 07:08:37,693 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:08:37,704 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;@5286b6db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:08:37,705 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:08:37,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 07:08:37,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 07:08:37,714 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:37,714 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:08:37,715 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:08:37,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:37,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1996056410, now seen corresponding path program 1 times [2024-12-02 07:08:37,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:08:37,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425446690] [2024-12-02 07:08:37,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:37,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:08:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 07:08:37,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:08:37,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425446690] [2024-12-02 07:08:37,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425446690] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:08:37,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306282131] [2024-12-02 07:08:37,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:37,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:37,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:08:37,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:08:37,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:08:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:38,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:08:38,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:08:38,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:08:38,114 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:08:38,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306282131] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:08:38,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:08:38,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 07:08:38,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128075752] [2024-12-02 07:08:38,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:08:38,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:08:38,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:08:38,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:08:38,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:08:38,139 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:08:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:08:38,167 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2024-12-02 07:08:38,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:08:38,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-12-02 07:08:38,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:08:38,172 INFO L225 Difference]: With dead ends: 52 [2024-12-02 07:08:38,173 INFO L226 Difference]: Without dead ends: 24 [2024-12-02 07:08:38,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:08:38,178 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:08:38,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:08:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-12-02 07:08:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-12-02 07:08:38,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 07:08:38,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-12-02 07:08:38,201 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 21 [2024-12-02 07:08:38,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:08:38,202 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-12-02 07:08:38,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:08:38,202 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-12-02 07:08:38,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-02 07:08:38,203 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:38,203 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:08:38,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:08:38,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:08:38,404 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:08:38,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:38,404 INFO L85 PathProgramCache]: Analyzing trace with hash 268010891, now seen corresponding path program 1 times [2024-12-02 07:08:38,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:08:38,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063309300] [2024-12-02 07:08:38,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:38,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:08:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:38,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 07:08:38,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:08:38,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063309300] [2024-12-02 07:08:38,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063309300] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:08:38,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:08:38,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:08:38,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658607203] [2024-12-02 07:08:38,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:08:38,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:08:38,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:08:38,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:08:38,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:08:38,529 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:08:38,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:08:38,543 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-12-02 07:08:38,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:08:38,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-12-02 07:08:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:08:38,544 INFO L225 Difference]: With dead ends: 24 [2024-12-02 07:08:38,544 INFO L226 Difference]: Without dead ends: 23 [2024-12-02 07:08:38,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:08:38,545 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:08:38,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 58 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:08:38,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-12-02 07:08:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-12-02 07:08:38,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 07:08:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-12-02 07:08:38,549 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 23 [2024-12-02 07:08:38,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:08:38,549 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-12-02 07:08:38,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:08:38,549 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-12-02 07:08:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 07:08:38,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:38,550 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:08:38,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:08:38,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:08:38,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:38,551 INFO L85 PathProgramCache]: Analyzing trace with hash -281596904, now seen corresponding path program 1 times [2024-12-02 07:08:38,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:08:38,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286273443] [2024-12-02 07:08:38,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:38,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:08:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:08:38,573 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:08:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:08:38,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:08:38,599 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:08:38,600 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 07:08:38,602 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 07:08:38,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:08:38,605 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 07:08:38,626 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:08:38,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:08:38 BoogieIcfgContainer [2024-12-02 07:08:38,630 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:08:38,630 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:08:38,630 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:08:38,630 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:08:38,631 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:37" (3/4) ... [2024-12-02 07:08:38,633 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:08:38,634 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:08:38,634 INFO L158 Benchmark]: Toolchain (without parser) took 2176.23ms. Allocated memory is still 142.6MB. Free memory was 114.5MB in the beginning and 100.1MB in the end (delta: 14.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-12-02 07:08:38,635 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:08:38,635 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.18ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 54.3MB in the end (delta: 60.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-02 07:08:38,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.65ms. Allocated memory is still 142.6MB. Free memory was 54.3MB in the beginning and 113.6MB in the end (delta: -59.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-12-02 07:08:38,635 INFO L158 Benchmark]: Boogie Preprocessor took 34.00ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 111.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:08:38,636 INFO L158 Benchmark]: RCFGBuilder took 277.01ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:08:38,636 INFO L158 Benchmark]: TraceAbstraction took 1007.16ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 100.2MB in the end (delta: -1.7MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2024-12-02 07:08:38,636 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 100.1MB in the end (delta: 9.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:08:38,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.18ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 54.3MB in the end (delta: 60.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.65ms. Allocated memory is still 142.6MB. Free memory was 54.3MB in the beginning and 113.6MB in the end (delta: -59.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.00ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 111.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.01ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 99.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1007.16ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 100.2MB in the end (delta: -1.7MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 100.1MB in the end (delta: 9.0kB). 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: 1569]: 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] [L1578] 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) [L1578] 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] [L1579] CALL CWE190_Integer_Overflow__int_fgets_postinc_11_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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() 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] [L1552] COND TRUE globalReturnsTrue() [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) [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1569] 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: 1569]: 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 3 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 155 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 57 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 7/9 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 07:08:38,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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 6397ae842c5189f360cc6277d874e9b8dba8f11c29e6bed19a6a6af70190e6bc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:08:40,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:08:40,636 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-12-02 07:08:40,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:08:40,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:08:40,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-12-02 07:08:40,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:08:40,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:08:40,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:08:40,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:08:40,668 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:08:40,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:08:40,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:08:40,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:08:40,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:08:40,668 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:08:40,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:08:40,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:08:40,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:08:40,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:08:40,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:08:40,669 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:08:40,669 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:08:40,670 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:08:40,670 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:08:40,670 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:08:40,670 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:08:40,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:08:40,670 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:08:40,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:08:40,670 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:08:40,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:08:40,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:08:40,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:08:40,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:08:40,672 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:08:40,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:08:40,672 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:08:40,672 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:08:40,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:08:40,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:08:40,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:08:40,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:08:40,673 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_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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 -> 6397ae842c5189f360cc6277d874e9b8dba8f11c29e6bed19a6a6af70190e6bc [2024-12-02 07:08:40,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:08:40,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:08:40,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:08:40,917 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:08:40,918 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:08:40,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i [2024-12-02 07:08:43,711 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/b7b44d642/ddad56378a344d618ca2dd199320def5/FLAG6d3610299 [2024-12-02 07:08:43,982 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:08:43,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i [2024-12-02 07:08:44,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/b7b44d642/ddad56378a344d618ca2dd199320def5/FLAG6d3610299 [2024-12-02 07:08:44,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/data/b7b44d642/ddad56378a344d618ca2dd199320def5 [2024-12-02 07:08:44,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:08:44,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:08:44,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:08:44,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:08:44,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:08:44,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:08:44" (1/1) ... [2024-12-02 07:08:44,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58241cb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:44, skipping insertion in model container [2024-12-02 07:08:44,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:08:44" (1/1) ... [2024-12-02 07:08:44,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:08:44,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:08:44,908 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:08:45,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:08:45,108 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:08:45,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45 WrapperNode [2024-12-02 07:08:45,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:08:45,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:08:45,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:08:45,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:08:45,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,153 INFO L138 Inliner]: procedures = 503, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-12-02 07:08:45,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:08:45,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:08:45,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:08:45,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:08:45,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,174 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 07:08:45,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,180 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:08:45,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:08:45,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:08:45,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:08:45,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (1/1) ... [2024-12-02 07:08:45,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:08:45,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:08:45,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:08:45,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:08:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 07:08:45,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 07:08:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2024-12-02 07:08:45,238 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2024-12-02 07:08:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:08:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:08:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:08:45,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:08:45,358 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:08:45,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:08:45,468 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-02 07:08:45,468 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:08:45,476 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:08:45,477 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 07:08:45,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:45 BoogieIcfgContainer [2024-12-02 07:08:45,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:08:45,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:08:45,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:08:45,483 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:08:45,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:08:44" (1/3) ... [2024-12-02 07:08:45,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e967d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:08:45, skipping insertion in model container [2024-12-02 07:08:45,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:45" (2/3) ... [2024-12-02 07:08:45,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e967d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:08:45, skipping insertion in model container [2024-12-02 07:08:45,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:45" (3/3) ... [2024-12-02 07:08:45,485 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i [2024-12-02 07:08:45,499 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:08:45,500 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_postinc_11_bad.i that has 3 procedures, 29 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 07:08:45,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:08:45,551 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;@f2049e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:08:45,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 07:08:45,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 07:08:45,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 07:08:45,561 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:45,561 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:08:45,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:08:45,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:45,566 INFO L85 PathProgramCache]: Analyzing trace with hash -918563445, now seen corresponding path program 1 times [2024-12-02 07:08:45,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:08:45,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336526412] [2024-12-02 07:08:45,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:45,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:45,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:08:45,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:08:45,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:08:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:45,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:08:45,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:08:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 07:08:45,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:08:45,704 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:08:45,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336526412] [2024-12-02 07:08:45,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336526412] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:08:45,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:08:45,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 07:08:45,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358327789] [2024-12-02 07:08:45,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:08:45,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:08:45,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:08:45,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:08:45,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:08:45,733 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 07:08:45,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:08:45,744 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2024-12-02 07:08:45,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:08:45,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2024-12-02 07:08:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:08:45,750 INFO L225 Difference]: With dead ends: 29 [2024-12-02 07:08:45,750 INFO L226 Difference]: Without dead ends: 21 [2024-12-02 07:08:45,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 07:08:45,755 INFO L435 NwaCegarLoop]: 34 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, 34 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 07:08:45,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:08:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-12-02 07:08:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-12-02 07:08:45,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 07:08:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-12-02 07:08:45,781 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 19 [2024-12-02 07:08:45,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:08:45,782 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-12-02 07:08:45,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 07:08:45,782 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-12-02 07:08:45,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 07:08:45,784 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:45,784 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:08:45,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:08:45,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:45,984 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:08:45,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1589304342, now seen corresponding path program 1 times [2024-12-02 07:08:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:08:45,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575051639] [2024-12-02 07:08:45,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:45,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:45,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:08:45,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:08:45,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:08:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:08:46,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:08:46,063 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:08:46,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:08:46,103 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:08:46,103 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 07:08:46,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575051639] [2024-12-02 07:08:46,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575051639] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:08:46,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:08:46,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:08:46,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892551650] [2024-12-02 07:08:46,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:08:46,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:08:46,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 07:08:46,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:08:46,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:08:46,105 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:08:46,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:08:46,116 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2024-12-02 07:08:46,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:08:46,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-12-02 07:08:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:08:46,117 INFO L225 Difference]: With dead ends: 29 [2024-12-02 07:08:46,117 INFO L226 Difference]: Without dead ends: 21 [2024-12-02 07:08:46,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:08:46,118 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:08:46,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:08:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-12-02 07:08:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-12-02 07:08:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 07:08:46,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-12-02 07:08:46,124 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 20 [2024-12-02 07:08:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:08:46,124 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-12-02 07:08:46,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-12-02 07:08:46,124 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-12-02 07:08:46,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-02 07:08:46,125 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:08:46,125 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:08:46,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:08:46,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:46,326 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 07:08:46,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:08:46,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1168448859, now seen corresponding path program 1 times [2024-12-02 07:08:46,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 07:08:46,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278042023] [2024-12-02 07:08:46,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:08:46,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:46,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:08:46,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:08:46,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:08:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:08:46,419 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:08:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:08:46,465 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 07:08:46,466 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:08:46,467 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 07:08:46,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 07:08:46,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:08:46,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:08:46,671 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 07:08:46,692 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 07:08:46,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:08:46 BoogieIcfgContainer [2024-12-02 07:08:46,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 07:08:46,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:08:46,695 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:08:46,695 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:08:46,696 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:45" (3/4) ... [2024-12-02 07:08:46,698 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 07:08:46,698 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:08:46,699 INFO L158 Benchmark]: Toolchain (without parser) took 2437.65ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 66.3MB in the beginning and 79.1MB in the end (delta: -12.8MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2024-12-02 07:08:46,699 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:08:46,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.98ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 63.1MB in the end (delta: 3.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-02 07:08:46,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.26ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 60.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:08:46,700 INFO L158 Benchmark]: Boogie Preprocessor took 33.07ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 58.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:08:46,700 INFO L158 Benchmark]: RCFGBuilder took 288.83ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 44.1MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:08:46,701 INFO L158 Benchmark]: TraceAbstraction took 1215.75ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 43.6MB in the beginning and 79.6MB in the end (delta: -36.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-12-02 07:08:46,701 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 134.2MB. Free memory was 79.1MB in the beginning and 79.1MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:08:46,703 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 846.98ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 63.1MB in the end (delta: 3.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.26ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 60.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.07ms. Allocated memory is still 92.3MB. Free memory was 60.4MB in the beginning and 58.1MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 288.83ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 44.1MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1215.75ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 43.6MB in the beginning and 79.6MB in the end (delta: -36.0MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 134.2MB. Free memory was 79.1MB in the beginning and 79.1MB 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: 1569]: 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] [L1578] 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) [L1578] 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] [L1579] CALL CWE190_Integer_Overflow__int_fgets_postinc_11_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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() 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] [L1552] COND TRUE globalReturnsTrue() [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) [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] RET globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1569] 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: 1569]: 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 3 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 57 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 107 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 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 07:08:46,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4018b8f9-976c-4b2e-a551-7f75b2187fa2/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