./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 fddf3942d8c27d3f9f9616a5c13c43706e15c6798bb90bf6d90fc97163b13e56 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:16,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:16,356 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 12:04:16,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:16,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:16,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:16,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:16,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:16,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:16,428 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:16,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:16,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:16,430 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:16,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:16,432 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:16,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:16,433 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:04:16,433 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:16,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:16,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:04:16,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:16,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:04:16,435 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:04:16,436 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:16,436 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:16,437 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:16,437 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:16,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:16,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:16,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:16,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:16,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:16,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:16,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:04:16,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:16,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:04:16,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:16,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:16,441 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:04:16,442 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:16,442 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:16,442 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_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddf3942d8c27d3f9f9616a5c13c43706e15c6798bb90bf6d90fc97163b13e56 [2023-11-26 12:04:16,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:16,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:16,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:16,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:16,811 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:16,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i [2023-11-26 12:04:20,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:20,417 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:20,419 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i [2023-11-26 12:04:20,457 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data/32e12f00d/bda8aeb22442424aab30194087e21719/FLAGe014bffe7 [2023-11-26 12:04:20,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data/32e12f00d/bda8aeb22442424aab30194087e21719 [2023-11-26 12:04:20,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:20,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:20,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:20,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:20,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:20,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:20" (1/1) ... [2023-11-26 12:04:20,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ffbeef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:20, skipping insertion in model container [2023-11-26 12:04:20,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:20" (1/1) ... [2023-11-26 12:04:20,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:21,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:21,769 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:21,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:22,082 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:22,083 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:22,083 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:22,083 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:22,083 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:22,092 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:22,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22 WrapperNode [2023-11-26 12:04:22,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:22,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:22,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:22,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:22,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,178 INFO L138 Inliner]: procedures = 500, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2023-11-26 12:04:22,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:22,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:22,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:22,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:22,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,214 INFO L175 MemorySlicer]: Split 7 memory accesses to 4 slices as follows [1, 1, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0, 0]. The 4 writes are split as follows [0, 0, 2, 2]. [2023-11-26 12:04:22,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,228 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,230 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:22,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:22,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:22,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:22,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (1/1) ... [2023-11-26 12:04:22,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:22,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:22,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:22,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-26 12:04:22,325 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 12:04:22,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 12:04:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:04:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 12:04:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 12:04:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 12:04:22,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 12:04:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:04:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:04:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:04:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:04:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:22,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:22,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:04:22,328 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 12:04:22,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:04:22,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:04:22,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:04:22,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:04:22,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:04:22,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:04:22,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:04:22,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:04:22,527 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:22,531 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:22,741 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:22,781 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:22,789 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:04:22,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:22 BoogieIcfgContainer [2023-11-26 12:04:22,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:22,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:04:22,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:04:22,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:04:22,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:20" (1/3) ... [2023-11-26 12:04:22,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d5f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:22, skipping insertion in model container [2023-11-26 12:04:22,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:22" (2/3) ... [2023-11-26 12:04:22,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d0d5f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:22, skipping insertion in model container [2023-11-26 12:04:22,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:22" (3/3) ... [2023-11-26 12:04:22,812 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i [2023-11-26 12:04:22,828 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:04:22,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:04:22,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:04:22,888 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;@732d090b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:04:22,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:04:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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 12:04:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:04:22,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:22,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:22,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 12:04:22,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:22,909 INFO L85 PathProgramCache]: Analyzing trace with hash 610853811, now seen corresponding path program 1 times [2023-11-26 12:04:22,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:22,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818346828] [2023-11-26 12:04:22,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:22,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:23,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:04:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:23,312 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 12:04:23,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:23,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818346828] [2023-11-26 12:04:23,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818346828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:23,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:23,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:23,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409496351] [2023-11-26 12:04:23,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:23,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:23,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:23,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:23,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:23,358 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-11-26 12:04:23,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:23,418 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-11-26 12:04:23,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:23,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2023-11-26 12:04:23,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:23,428 INFO L225 Difference]: With dead ends: 21 [2023-11-26 12:04:23,429 INFO L226 Difference]: Without dead ends: 15 [2023-11-26 12:04:23,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:23,439 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:23,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:23,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-26 12:04:23,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-26 12:04:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:04:23,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-26 12:04:23,482 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2023-11-26 12:04:23,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:23,484 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-26 12:04:23,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-11-26 12:04:23,485 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-26 12:04:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 12:04:23,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:23,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:23,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:04:23,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 12:04:23,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1756599015, now seen corresponding path program 1 times [2023-11-26 12:04:23,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997296511] [2023-11-26 12:04:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:23,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:23,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:23,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:23,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:04:23,617 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:04:23,619 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 12:04:23,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 12:04:23,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:04:23,625 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 12:04:23,629 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:04:23,647 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-26 12:04:23,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:23 BoogieIcfgContainer [2023-11-26 12:04:23,658 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:04:23,658 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:23,658 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:23,659 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:23,659 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:22" (3/4) ... [2023-11-26 12:04:23,661 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:04:23,663 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:23,664 INFO L158 Benchmark]: Toolchain (without parser) took 3178.50ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 62.3MB in the beginning and 88.1MB in the end (delta: -25.9MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:23,664 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:23,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1605.82ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 62.0MB in the beginning and 94.5MB in the end (delta: -32.4MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:23,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.05ms. Allocated memory is still 163.6MB. Free memory was 93.9MB in the beginning and 91.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:04:23,666 INFO L158 Benchmark]: Boogie Preprocessor took 55.49ms. Allocated memory is still 163.6MB. Free memory was 91.0MB in the beginning and 88.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:23,667 INFO L158 Benchmark]: RCFGBuilder took 554.28ms. Allocated memory is still 163.6MB. Free memory was 88.2MB in the beginning and 128.0MB in the end (delta: -39.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-11-26 12:04:23,667 INFO L158 Benchmark]: TraceAbstraction took 865.05ms. Allocated memory is still 163.6MB. Free memory was 126.9MB in the beginning and 88.1MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:23,668 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 163.6MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:23,671 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1605.82ms. Allocated memory was 104.9MB in the beginning and 163.6MB in the end (delta: 58.7MB). Free memory was 62.0MB in the beginning and 94.5MB in the end (delta: -32.4MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.05ms. Allocated memory is still 163.6MB. Free memory was 93.9MB in the beginning and 91.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.49ms. Allocated memory is still 163.6MB. Free memory was 91.0MB in the beginning and 88.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.28ms. Allocated memory is still 163.6MB. Free memory was 88.2MB in the beginning and 128.0MB in the end (delta: -39.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 865.05ms. Allocated memory is still 163.6MB. Free memory was 126.9MB in the beginning and 88.1MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 163.6MB. Free memory is still 88.1MB. 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~nondet102 - 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741827, argc=1073741827, argv={1073741829:1073741828}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1578] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, dataPtr={7:0}, dataVoidPtr={7:0}, dataVoidPtr={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, dataPtr={7:0}, dataVoidPtr={7:0}, dataVoidPtr={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1580]: 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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 12:04:23,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 fddf3942d8c27d3f9f9616a5c13c43706e15c6798bb90bf6d90fc97163b13e56 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:26,532 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:26,656 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-26 12:04:26,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:26,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:26,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-26 12:04:26,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:26,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:26,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:26,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:26,726 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:26,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:26,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:26,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:26,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:26,730 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:26,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:26,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:04:26,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:26,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:04:26,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:26,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:04:26,734 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 12:04:26,735 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 12:04:26,735 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:04:26,736 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 12:04:26,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:04:26,736 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:26,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:26,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:26,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:26,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:26,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:26,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:26,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:26,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:26,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:04:26,741 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 12:04:26,742 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 12:04:26,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:26,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:26,742 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:04:26,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:26,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:26,743 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 12:04:26,744 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_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddf3942d8c27d3f9f9616a5c13c43706e15c6798bb90bf6d90fc97163b13e56 [2023-11-26 12:04:27,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:27,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:27,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:27,230 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:27,231 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:27,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i [2023-11-26 12:04:30,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:30,940 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:30,941 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i [2023-11-26 12:04:30,977 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data/2ca2bf6c5/7bcf79a0d2614a04a8ba7de158e6333d/FLAG385248405 [2023-11-26 12:04:30,997 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/data/2ca2bf6c5/7bcf79a0d2614a04a8ba7de158e6333d [2023-11-26 12:04:31,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:31,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:31,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:31,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:31,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:31,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:30" (1/1) ... [2023-11-26 12:04:31,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63aa3054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:31, skipping insertion in model container [2023-11-26 12:04:31,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:30" (1/1) ... [2023-11-26 12:04:31,101 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:32,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:32,089 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 12:04:32,110 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:32,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:32,214 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:32,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:32,499 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:32,499 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:32,499 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:32,499 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:32,499 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:04:32,508 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:32,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32 WrapperNode [2023-11-26 12:04:32,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:32,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:32,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:32,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:32,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,604 INFO L138 Inliner]: procedures = 505, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2023-11-26 12:04:32,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:32,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:32,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:32,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:32,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,638 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,665 INFO L175 MemorySlicer]: Split 7 memory accesses to 4 slices as follows [1, 1, 3, 2]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1, 0, 0]. The 4 writes are split as follows [0, 0, 2, 2]. [2023-11-26 12:04:32,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,710 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:32,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:32,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:32,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:32,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (1/1) ... [2023-11-26 12:04:32,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:32,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:32,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:32,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-26 12:04:32,848 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 12:04:32,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 12:04:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:04:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 12:04:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-26 12:04:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-26 12:04:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-26 12:04:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:32,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-26 12:04:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-26 12:04:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-26 12:04:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-26 12:04:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:04:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-26 12:04:32,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-26 12:04:32,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-26 12:04:32,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-26 12:04:32,854 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 12:04:32,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2023-11-26 12:04:32,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2023-11-26 12:04:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2023-11-26 12:04:32,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2023-11-26 12:04:33,119 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:33,121 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:33,437 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:33,494 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:33,494 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:04:33,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:33 BoogieIcfgContainer [2023-11-26 12:04:33,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:33,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:04:33,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:04:33,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:04:33,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:30" (1/3) ... [2023-11-26 12:04:33,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48875746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:33, skipping insertion in model container [2023-11-26 12:04:33,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:32" (2/3) ... [2023-11-26 12:04:33,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48875746 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:33, skipping insertion in model container [2023-11-26 12:04:33,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:33" (3/3) ... [2023-11-26 12:04:33,507 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_64_bad.i [2023-11-26 12:04:33,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:04:33,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-26 12:04:33,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:04:33,600 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;@2036a935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:04:33,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-26 12:04:33,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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 12:04:33,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:04:33,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:33,637 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 12:04:33,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:33,646 INFO L85 PathProgramCache]: Analyzing trace with hash 610853811, now seen corresponding path program 1 times [2023-11-26 12:04:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:33,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22527442] [2023-11-26 12:04:33,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:33,670 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 12:04:33,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:33,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 12:04:33,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 12:04:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:04:33,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:34,011 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 12:04:34,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:34,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 12:04:34,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22527442] [2023-11-26 12:04:34,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22527442] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:34,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:34,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:34,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567175514] [2023-11-26 12:04:34,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:34,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:34,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 12:04:34,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:34,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:34,061 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-11-26 12:04:34,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:34,132 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-11-26 12:04:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:34,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2023-11-26 12:04:34,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:34,143 INFO L225 Difference]: With dead ends: 21 [2023-11-26 12:04:34,144 INFO L226 Difference]: Without dead ends: 15 [2023-11-26 12:04:34,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:34,151 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:34,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:34,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-26 12:04:34,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-26 12:04:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:04:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-26 12:04:34,191 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2023-11-26 12:04:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:34,193 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-26 12:04:34,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-11-26 12:04:34,194 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-26 12:04:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 12:04:34,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:34,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:34,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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)] Ended with exit code 0 [2023-11-26 12:04:34,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 [2023-11-26 12:04:34,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-26 12:04:34,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1756599015, now seen corresponding path program 1 times [2023-11-26 12:04:34,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 12:04:34,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223221765] [2023-11-26 12:04:34,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,404 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 12:04:34,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 12:04:34,405 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 12:04:34,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 (3)] Waiting until timeout for monitored process [2023-11-26 12:04:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:04:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:04:34,853 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-26 12:04:34,854 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:04:34,856 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-26 12:04:34,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-26 12:04:34,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:35,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/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 [2023-11-26 12:04:35,063 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 12:04:35,066 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:04:35,085 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-11-26 12:04:35,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:35 BoogieIcfgContainer [2023-11-26 12:04:35,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:04:35,102 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:35,102 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:35,103 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:35,104 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:33" (3/4) ... [2023-11-26 12:04:35,107 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:04:35,108 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:35,114 INFO L158 Benchmark]: Toolchain (without parser) took 4105.35ms. Allocated memory was 73.4MB in the beginning and 109.1MB in the end (delta: 35.7MB). Free memory was 45.8MB in the beginning and 75.3MB in the end (delta: -29.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:35,116 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 78.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:35,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1502.04ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 45.6MB in the beginning and 45.6MB in the end (delta: 16.1kB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-26 12:04:35,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.40ms. Allocated memory is still 90.2MB. Free memory was 45.6MB in the beginning and 42.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:04:35,120 INFO L158 Benchmark]: Boogie Preprocessor took 134.34ms. Allocated memory is still 90.2MB. Free memory was 42.7MB in the beginning and 39.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:35,120 INFO L158 Benchmark]: RCFGBuilder took 754.17ms. Allocated memory is still 90.2MB. Free memory was 38.9MB in the beginning and 44.1MB in the end (delta: -5.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2023-11-26 12:04:35,122 INFO L158 Benchmark]: TraceAbstraction took 1602.11ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 43.1MB in the beginning and 75.9MB in the end (delta: -32.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2023-11-26 12:04:35,122 INFO L158 Benchmark]: Witness Printer took 6.15ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 75.3MB in the end (delta: 638.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:35,124 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 73.4MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 78.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1502.04ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 45.6MB in the beginning and 45.6MB in the end (delta: 16.1kB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.40ms. Allocated memory is still 90.2MB. Free memory was 45.6MB in the beginning and 42.7MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 134.34ms. Allocated memory is still 90.2MB. Free memory was 42.7MB in the beginning and 39.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 754.17ms. Allocated memory is still 90.2MB. Free memory was 38.9MB in the beginning and 44.1MB in the end (delta: -5.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1602.11ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 43.1MB in the beginning and 75.9MB in the end (delta: -32.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 6.15ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 75.3MB in the end (delta: 638.4kB). 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~nondet100 - 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569. 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); [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] EXPR data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553-L1563] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1578] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, dataPtr={7:0}, dataVoidPtr={7:0}, dataVoidPtr={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, dataPtr={7:0}, dataVoidPtr={7:0}, dataVoidPtr={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1580]: 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 2 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 12:04:35,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ff352-f155-4d2c-998c-6b4d84f7ea1b/bin/uautomizer-verify-VRDe98Ueme/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