./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC --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 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:29:32,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:29:32,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-24 00:29:32,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:29:32,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:29:32,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:29:32,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:29:32,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:29:32,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:29:32,472 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:29:32,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:29:32,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:29:32,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:29:32,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:29:32,474 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:29:32,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:29:32,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:29:32,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:29:32,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:29:32,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:29:32,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:29:32,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:29:32,475 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:29:32,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:29:32,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:29:32,477 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:29:32,477 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:29:32,477 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:29:32,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:32,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:29:32,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:32,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:32,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:29:32,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:32,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:29:32,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:32,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:29:32,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:29:32,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:29:32,480 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_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC 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 -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2024-11-24 00:29:32,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:29:32,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:29:32,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:29:32,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:29:32,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:29:32,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-11-24 00:29:35,997 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/987217436/04aea57235ec43cba3e84832087ff85b/FLAG6353a7357 [2024-11-24 00:29:36,609 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:29:36,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-11-24 00:29:36,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/987217436/04aea57235ec43cba3e84832087ff85b/FLAG6353a7357 [2024-11-24 00:29:36,675 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/987217436/04aea57235ec43cba3e84832087ff85b [2024-11-24 00:29:36,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:29:36,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:29:36,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:29:36,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:29:36,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:29:36,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:36" (1/1) ... [2024-11-24 00:29:36,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1709a9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:36, skipping insertion in model container [2024-11-24 00:29:36,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:36" (1/1) ... [2024-11-24 00:29:36,775 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:29:38,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:29:38,537 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:29:38,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:29:39,126 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:29:39,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39 WrapperNode [2024-11-24 00:29:39,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:29:39,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:29:39,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:29:39,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:29:39,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,217 INFO L138 Inliner]: procedures = 936, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-11-24 00:29:39,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:29:39,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:29:39,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:29:39,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:29:39,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,234 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,263 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-24 00:29:39,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:29:39,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:29:39,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:29:39,295 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:29:39,296 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (1/1) ... [2024-11-24 00:29:39,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:39,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:29:39,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:29:39,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:29:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:29:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:29:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:29:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 00:29:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 00:29:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:29:39,563 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:29:39,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:29:39,748 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-24 00:29:39,748 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:29:39,766 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:29:39,767 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:29:39,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:39 BoogieIcfgContainer [2024-11-24 00:29:39,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:29:39,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:29:39,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:29:39,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:29:39,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:29:36" (1/3) ... [2024-11-24 00:29:39,781 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab923fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:29:39, skipping insertion in model container [2024-11-24 00:29:39,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:39" (2/3) ... [2024-11-24 00:29:39,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab923fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:29:39, skipping insertion in model container [2024-11-24 00:29:39,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:39" (3/3) ... [2024-11-24 00:29:39,785 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-11-24 00:29:39,807 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:29:39,809 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-24 00:29:39,881 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:29:39,902 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;@1d540d4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:29:39,902 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:29:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:29:39,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 00:29:39,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:29:39,914 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:29:39,914 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:29:39,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:29:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2024-11-24 00:29:39,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:29:39,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846519833] [2024-11-24 00:29:39,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:29:39,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:29:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:29:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:29:40,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:29:40,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846519833] [2024-11-24 00:29:40,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846519833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:29:40,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:29:40,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 00:29:40,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588183833] [2024-11-24 00:29:40,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:29:40,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:29:40,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:29:40,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:29:40,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:29:40,257 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:29:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:29:40,275 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2024-11-24 00:29:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:29:40,278 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-24 00:29:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:29:40,286 INFO L225 Difference]: With dead ends: 22 [2024-11-24 00:29:40,286 INFO L226 Difference]: Without dead ends: 14 [2024-11-24 00:29:40,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:29:40,294 INFO L435 NwaCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:29:40,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:29:40,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-24 00:29:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-24 00:29:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-24 00:29:40,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-11-24 00:29:40,339 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2024-11-24 00:29:40,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:29:40,343 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-24 00:29:40,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-24 00:29:40,343 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-24 00:29:40,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-24 00:29:40,344 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:29:40,344 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:29:40,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:29:40,345 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:29:40,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:29:40,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2024-11-24 00:29:40,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:29:40,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212980220] [2024-11-24 00:29:40,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:29:40,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:29:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:29:40,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585734615] [2024-11-24 00:29:40,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:29:40,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:29:40,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:29:40,475 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:29:40,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:29:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:29:40,651 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:29:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:29:40,693 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:29:40,694 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:29:40,695 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 00:29:40,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 00:29:40,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:29:40,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:29:40,901 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:29:40,923 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:29:40,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:29:40 BoogieIcfgContainer [2024-11-24 00:29:40,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:29:40,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:29:40,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:29:40,928 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:29:40,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:39" (3/4) ... [2024-11-24 00:29:40,932 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:29:40,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:29:40,934 INFO L158 Benchmark]: Toolchain (without parser) took 4252.56ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 113.9MB in the beginning and 360.6MB in the end (delta: -246.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-24 00:29:40,934 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:40,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2445.14ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 75.5MB in the end (delta: 38.2MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2024-11-24 00:29:40,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.48ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 72.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:40,935 INFO L158 Benchmark]: Boogie Preprocessor took 72.00ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 70.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:40,935 INFO L158 Benchmark]: RCFGBuilder took 477.91ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 58.0MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:29:40,936 INFO L158 Benchmark]: TraceAbstraction took 1155.49ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 57.2MB in the beginning and 361.5MB in the end (delta: -304.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:40,936 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 427.8MB. Free memory was 361.5MB in the beginning and 360.6MB in the end (delta: 942.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:40,938 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 142.6MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2445.14ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 75.5MB in the end (delta: 38.2MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.48ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 72.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 72.00ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 70.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 477.91ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 58.0MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1155.49ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 57.2MB in the beginning and 361.5MB in the end (delta: -304.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 427.8MB. Free memory was 361.5MB in the beginning and 360.6MB in the end (delta: 942.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840, overapproximation of fgets at line 1838. 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] [L1859] 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) [L1859] 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] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] 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] [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1848] int dataCopy = data; [L1849] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=46341, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, 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, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:29:40,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/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_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC --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 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:29:43,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:29:44,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-24 00:29:44,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:29:44,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:29:44,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-24 00:29:44,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:29:44,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:29:44,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:29:44,091 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:29:44,091 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:29:44,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:29:44,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:29:44,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:29:44,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:29:44,092 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:29:44,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:29:44,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:29:44,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:29:44,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:29:44,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:29:44,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:29:44,093 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:29:44,093 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:29:44,093 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:29:44,098 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:29:44,099 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:29:44,099 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:29:44,099 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:29:44,099 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:29:44,099 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:29:44,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:44,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:29:44,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:44,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:44,100 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:29:44,100 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:29:44,100 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:29:44,100 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:29:44,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:44,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:29:44,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:29:44,100 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:29:44,101 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:29:44,101 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:29:44,101 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:29:44,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:29:44,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:29:44,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:29:44,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:29:44,101 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_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC 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 -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2024-11-24 00:29:44,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:29:44,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:29:44,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:29:44,507 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:29:44,507 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:29:44,509 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-11-24 00:29:47,659 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/f1a5a841f/2593070f9e61450aa40d0f3482fa0c42/FLAGd25fe2fd1 [2024-11-24 00:29:48,275 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:29:48,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-11-24 00:29:48,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/f1a5a841f/2593070f9e61450aa40d0f3482fa0c42/FLAGd25fe2fd1 [2024-11-24 00:29:48,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/data/f1a5a841f/2593070f9e61450aa40d0f3482fa0c42 [2024-11-24 00:29:48,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:29:48,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:29:48,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:29:48,358 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:29:48,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:29:48,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:48" (1/1) ... [2024-11-24 00:29:48,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dea6ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:48, skipping insertion in model container [2024-11-24 00:29:48,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:48" (1/1) ... [2024-11-24 00:29:48,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:29:50,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:29:50,482 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:29:50,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:29:50,999 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:29:50,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50 WrapperNode [2024-11-24 00:29:51,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:29:51,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:29:51,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:29:51,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:29:51,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,074 INFO L138 Inliner]: procedures = 941, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-11-24 00:29:51,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:29:51,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:29:51,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:29:51,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:29:51,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,117 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-24 00:29:51,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,118 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,125 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,126 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:29:51,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:29:51,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:29:51,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:29:51,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (1/1) ... [2024-11-24 00:29:51,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:29:51,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:29:51,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:29:51,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:29:51,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:29:51,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:29:51,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:29:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 00:29:51,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 00:29:51,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:29:51,468 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:29:51,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:29:53,870 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-24 00:29:53,871 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:29:53,881 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:29:53,881 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 00:29:53,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:53 BoogieIcfgContainer [2024-11-24 00:29:53,882 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:29:53,885 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:29:53,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:29:53,890 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:29:53,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:29:48" (1/3) ... [2024-11-24 00:29:53,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7223554d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:29:53, skipping insertion in model container [2024-11-24 00:29:53,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:50" (2/3) ... [2024-11-24 00:29:53,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7223554d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:29:53, skipping insertion in model container [2024-11-24 00:29:53,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:53" (3/3) ... [2024-11-24 00:29:53,893 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2024-11-24 00:29:53,909 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:29:53,911 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-24 00:29:53,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:29:53,979 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;@35e1af80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:29:53,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:29:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-24 00:29:53,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-24 00:29:53,988 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:29:53,989 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:29:53,989 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-24 00:29:53,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:29:53,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2024-11-24 00:29:54,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:29:54,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707811947] [2024-11-24 00:29:54,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:29:54,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:29:54,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:29:54,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:29:54,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:29:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:29:54,455 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:29:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:29:55,415 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-24 00:29:55,417 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:29:55,418 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-24 00:29:55,420 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-24 00:29:55,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:29:55,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:29:55,628 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-11-24 00:29:55,648 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:29:55,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:29:55 BoogieIcfgContainer [2024-11-24 00:29:55,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:29:55,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:29:55,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:29:55,652 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:29:55,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:29:53" (3/4) ... [2024-11-24 00:29:55,655 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:29:55,656 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:29:55,658 INFO L158 Benchmark]: Toolchain (without parser) took 7303.73ms. Allocated memory was 83.9MB in the beginning and 167.8MB in the end (delta: 83.9MB). Free memory was 56.9MB in the beginning and 119.5MB in the end (delta: -62.6MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-24 00:29:55,658 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:55,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2643.24ms. Allocated memory was 83.9MB in the beginning and 167.8MB in the end (delta: 83.9MB). Free memory was 56.8MB in the beginning and 77.7MB in the end (delta: -21.0MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2024-11-24 00:29:55,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.44ms. Allocated memory is still 167.8MB. Free memory was 77.7MB in the beginning and 74.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:29:55,659 INFO L158 Benchmark]: Boogie Preprocessor took 63.52ms. Allocated memory is still 167.8MB. Free memory was 74.2MB in the beginning and 72.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:55,660 INFO L158 Benchmark]: RCFGBuilder took 2741.83ms. Allocated memory is still 167.8MB. Free memory was 71.8MB in the beginning and 57.8MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:29:55,660 INFO L158 Benchmark]: TraceAbstraction took 1767.03ms. Allocated memory is still 167.8MB. Free memory was 57.0MB in the beginning and 121.0MB in the end (delta: -64.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:55,660 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 119.5MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:29:55,663 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2643.24ms. Allocated memory was 83.9MB in the beginning and 167.8MB in the end (delta: 83.9MB). Free memory was 56.8MB in the beginning and 77.7MB in the end (delta: -21.0MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.44ms. Allocated memory is still 167.8MB. Free memory was 77.7MB in the beginning and 74.2MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.52ms. Allocated memory is still 167.8MB. Free memory was 74.2MB in the beginning and 72.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2741.83ms. Allocated memory is still 167.8MB. Free memory was 71.8MB in the beginning and 57.8MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1767.03ms. Allocated memory is still 167.8MB. Free memory was 57.0MB in the beginning and 121.0MB in the end (delta: -64.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 167.8MB. Free memory was 119.5MB in the beginning and 119.5MB in the end (delta: 30.1kB). 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: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840, overapproximation of fgets at line 1838. 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] [L1859] 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) [L1859] 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] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] 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] [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1848] int dataCopy = data; [L1849] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:29:55,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73ed36a-a622-4fce-996b-ce149cfd9005/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample