./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme --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 e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:06:32,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:06:32,310 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 12:06:32,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:06:32,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:06:32,359 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:06:32,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:06:32,360 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:06:32,362 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:06:32,367 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:06:32,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:06:32,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:06:32,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:06:32,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:06:32,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:06:32,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:06:32,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:06:32,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:06:32,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:06:32,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:06:32,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:06:32,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:06:32,377 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:06:32,377 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:06:32,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:06:32,378 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:06:32,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:06:32,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:06:32,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:06:32,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:06:32,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:32,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:06:32,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:06:32,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:06:32,397 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:06:32,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:06:32,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:06:32,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:06:32,399 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:06:32,399 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:06:32,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:06:32,400 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 [2023-11-26 12:06:32,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:06:32,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:06:32,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:06:32,772 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:06:32,772 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:06:32,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2023-11-26 12:06:35,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:06:36,415 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:06:36,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2023-11-26 12:06:36,468 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data/b8ae53760/b11bb47f5cc5410cb410364bf8f5f67d/FLAG6cee3fd2e [2023-11-26 12:06:36,491 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data/b8ae53760/b11bb47f5cc5410cb410364bf8f5f67d [2023-11-26 12:06:36,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:06:36,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:06:36,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:36,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:06:36,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:06:36,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:36" (1/1) ... [2023-11-26 12:06:36,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecc09d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:36, skipping insertion in model container [2023-11-26 12:06:36,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:36" (1/1) ... [2023-11-26 12:06:36,616 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:38,731 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:38,746 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:06:38,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:39,386 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:39,386 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:39,386 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:39,386 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:39,387 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:39,395 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:06:39,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39 WrapperNode [2023-11-26 12:06:39,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:39,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:39,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:06:39,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:06:39,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,451 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,494 INFO L138 Inliner]: procedures = 937, calls = 67, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-11-26 12:06:39,495 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:39,496 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:06:39,496 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:06:39,496 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:06:39,507 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,511 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,542 INFO L175 MemorySlicer]: Split 6 memory accesses to 4 slices as follows [1, 1, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0, 0]. The 3 writes are split as follows [0, 0, 1, 2]. [2023-11-26 12:06:39,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:06:39,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:06:39,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:06:39,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:06:39,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (1/1) ... [2023-11-26 12:06:39,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:39,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:39,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:06:39,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:06:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:06:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:06:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:06:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:06:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:06:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:06:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:06:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:06:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 12:06:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:06:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:06:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:06:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:06:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-26 12:06:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 12:06:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 12:06:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:06:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 12:06:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 12:06:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 12:06:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 12:06:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:06:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:06:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:06:39,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:06:39,854 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:06:39,856 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:06:40,036 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:06:40,069 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:06:40,070 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:06:40,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:40 BoogieIcfgContainer [2023-11-26 12:06:40,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:06:40,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:06:40,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:06:40,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:06:40,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:06:36" (1/3) ... [2023-11-26 12:06:40,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a60f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:40, skipping insertion in model container [2023-11-26 12:06:40,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:39" (2/3) ... [2023-11-26 12:06:40,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a60f2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:40, skipping insertion in model container [2023-11-26 12:06:40,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:40" (3/3) ... [2023-11-26 12:06:40,080 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2023-11-26 12:06:40,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:06:40,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:06:40,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:06:40,159 INFO L357 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, mHoare=true, 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;@3f871456, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:06:40,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:06:40,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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) [2023-11-26 12:06:40,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:06:40,173 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:40,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:40,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 12:06:40,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:40,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1695413602, now seen corresponding path program 1 times [2023-11-26 12:06:40,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:40,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252635340] [2023-11-26 12:06:40,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:40,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:06:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:06:40,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:06:40,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:06:40,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252635340] [2023-11-26 12:06:40,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252635340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:06:40,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:06:40,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:06:40,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089126256] [2023-11-26 12:06:40,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:06:40,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:06:40,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:06:40,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:06:40,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:06:40,631 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-26 12:06:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:06:40,661 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2023-11-26 12:06:40,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:06:40,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2023-11-26 12:06:40,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:06:40,672 INFO L225 Difference]: With dead ends: 18 [2023-11-26 12:06:40,672 INFO L226 Difference]: Without dead ends: 14 [2023-11-26 12:06:40,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:06:40,680 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:06:40,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:06:40,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-26 12:06:40,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-26 12:06:40,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 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) [2023-11-26 12:06:40,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-11-26 12:06:40,723 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2023-11-26 12:06:40,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:06:40,725 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-11-26 12:06:40,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-26 12:06:40,726 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-26 12:06:40,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:06:40,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:40,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:40,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:06:40,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 12:06:40,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1018214055, now seen corresponding path program 1 times [2023-11-26 12:06:40,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:06:40,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569811944] [2023-11-26 12:06:40,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:40,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:06:40,777 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:06:40,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397981428] [2023-11-26 12:06:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:40,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:40,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:06:40,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:06:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:06:40,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:06:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:06:41,052 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:06:41,053 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:06:41,056 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 12:06:41,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 12:06:41,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:06:41,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:06:41,274 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 12:06:41,277 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:06:41,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet187 [2023-11-26 12:06:41,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:06:41 BoogieIcfgContainer [2023-11-26 12:06:41,317 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:06:41,317 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:06:41,317 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:06:41,318 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:06:41,318 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:40" (3/4) ... [2023-11-26 12:06:41,320 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:06:41,322 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:06:41,323 INFO L158 Benchmark]: Toolchain (without parser) took 4820.51ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 96.9MB in the beginning and 60.7MB in the end (delta: 36.2MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2023-11-26 12:06:41,323 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:06:41,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2890.52ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 96.9MB in the beginning and 127.9MB in the end (delta: -30.9MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. [2023-11-26 12:06:41,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.97ms. Allocated memory is still 197.1MB. Free memory was 127.9MB in the beginning and 123.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:06:41,325 INFO L158 Benchmark]: Boogie Preprocessor took 86.38ms. Allocated memory is still 197.1MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:06:41,325 INFO L158 Benchmark]: RCFGBuilder took 487.36ms. Allocated memory is still 197.1MB. Free memory was 120.5MB in the beginning and 104.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 12:06:41,326 INFO L158 Benchmark]: TraceAbstraction took 1243.95ms. Allocated memory is still 197.1MB. Free memory was 103.7MB in the beginning and 61.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-26 12:06:41,326 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 197.1MB. Free memory was 61.8MB in the beginning and 60.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:06:41,330 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 117.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2890.52ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 96.9MB in the beginning and 127.9MB in the end (delta: -30.9MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.97ms. Allocated memory is still 197.1MB. Free memory was 127.9MB in the beginning and 123.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.38ms. Allocated memory is still 197.1MB. Free memory was 123.7MB in the beginning and 121.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.36ms. Allocated memory is still 197.1MB. Free memory was 120.5MB in the beginning and 104.8MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.95ms. Allocated memory is still 197.1MB. Free memory was 103.7MB in the beginning and 61.8MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 197.1MB. Free memory was 61.8MB in the beginning and 60.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet187 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1857]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1846, overapproximation of large string literal at line 1865. 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); [L1865] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1865] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=36, argc=36, argv={35:37}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1866] CALL CWE190_Integer_Overflow__int_fgets_square_34_bad() [L1839] int data; [L1840] CWE190_Integer_Overflow__int_fgets_square_34_unionType myUnion; [L1841] data = 0 [L1843] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1843] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1843] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1844] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1846] EXPR data = atoi(inputBuffer) [L1843] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1842-L1852] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1853] myUnion.unionFirst = data [L1855] EXPR myUnion.unionSecond [L1855] int data = myUnion.unionSecond; [L1857] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-357913941, data=-357913941, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={6:0}] - UnprovableResult [Line: 1857]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, 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, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-26 12:06:41,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme --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 e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:06:44,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:06:44,236 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 12:06:44,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:06:44,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:06:44,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 12:06:44,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:06:44,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:06:44,304 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:06:44,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:06:44,310 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:06:44,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:06:44,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:06:44,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:06:44,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:06:44,314 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:06:44,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:06:44,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:06:44,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:06:44,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:06:44,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:06:44,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:06:44,318 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:06:44,319 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:06:44,319 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:06:44,320 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:06:44,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:06:44,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:06:44,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:06:44,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:06:44,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:06:44,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:06:44,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:06:44,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:44,324 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:06:44,324 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:06:44,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:06:44,326 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:06:44,326 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:06:44,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:06:44,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:06:44,327 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:06:44,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:06:44,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:06:44,328 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:06:44,328 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 [2023-11-26 12:06:44,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:06:44,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:06:44,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:06:44,777 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:06:44,781 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:06:44,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2023-11-26 12:06:48,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:06:48,686 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:06:48,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2023-11-26 12:06:48,732 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data/0a3924062/3b69d3b60819459483c445054948d2ff/FLAG313f39972 [2023-11-26 12:06:48,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/data/0a3924062/3b69d3b60819459483c445054948d2ff [2023-11-26 12:06:48,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:06:48,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:06:48,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:48,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:06:48,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:06:48,776 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:48" (1/1) ... [2023-11-26 12:06:48,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfe9d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:48, skipping insertion in model container [2023-11-26 12:06:48,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:06:48" (1/1) ... [2023-11-26 12:06:48,883 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:06:50,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:50,938 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:06:51,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:06:51,525 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:51,525 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:51,525 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:51,526 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:51,526 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:06:51,534 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:06:51,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51 WrapperNode [2023-11-26 12:06:51,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:06:51,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:51,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:06:51,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:06:51,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,584 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,617 INFO L138 Inliner]: procedures = 942, calls = 67, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-11-26 12:06:51,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:06:51,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:06:51,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:06:51,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:06:51,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,668 INFO L175 MemorySlicer]: Split 6 memory accesses to 4 slices as follows [1, 1, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0, 0]. The 3 writes are split as follows [0, 0, 1, 2]. [2023-11-26 12:06:51,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,707 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:06:51,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:06:51,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:06:51,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:06:51,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (1/1) ... [2023-11-26 12:06:51,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:06:51,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:06:51,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:06:51,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:06:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:06:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:06:51,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:06:51,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:06:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 12:06:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2023-11-26 12:06:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2023-11-26 12:06:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2023-11-26 12:06:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2023-11-26 12:06:51,828 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-26 12:06:51,829 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 12:06:51,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 12:06:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:06:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:06:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:06:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 12:06:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 12:06:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 12:06:51,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 12:06:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 12:06:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 12:06:51,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:06:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:06:51,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 12:06:51,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 12:06:52,025 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:06:52,027 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:06:54,448 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:06:54,496 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:06:54,496 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:06:54,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:54 BoogieIcfgContainer [2023-11-26 12:06:54,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:06:54,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:06:54,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:06:54,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:06:54,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:06:48" (1/3) ... [2023-11-26 12:06:54,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7b0012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:54, skipping insertion in model container [2023-11-26 12:06:54,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:06:51" (2/3) ... [2023-11-26 12:06:54,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7b0012 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:06:54, skipping insertion in model container [2023-11-26 12:06:54,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:06:54" (3/3) ... [2023-11-26 12:06:54,506 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2023-11-26 12:06:54,525 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:06:54,526 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:06:54,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:06:54,579 INFO L357 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, mHoare=true, 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;@60431054, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:06:54,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:06:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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) [2023-11-26 12:06:54,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 12:06:54,592 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:06:54,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:06:54,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 12:06:54,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:06:54,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1695413602, now seen corresponding path program 1 times [2023-11-26 12:06:54,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:06:54,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763093616] [2023-11-26 12:06:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:06:54,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 12:06:54,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:06:54,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-26 12:06:54,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38408e54-7181-40d7-87d0-b20adab297a1/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-26 12:06:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:06:54,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.