./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya --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 ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:18:05,990 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:18:06,051 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 05:18:06,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:18:06,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:18:06,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:18:06,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:18:06,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:18:06,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:18:06,084 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:18:06,084 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:18:06,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:18:06,086 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:18:06,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:18:06,087 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:18:06,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:18:06,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:18:06,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:18:06,089 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:18:06,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:18:06,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:18:06,091 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:18:06,091 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:18:06,091 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:18:06,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:18:06,092 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:18:06,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:18:06,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:18:06,094 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:18:06,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:18:06,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:18:06,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:18:06,095 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:18:06,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:18:06,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:18:06,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:18:06,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:18:06,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:18:06,096 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:18:06,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:18:06,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:18:06,097 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_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 [2023-11-29 05:18:06,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:18:06,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:18:06,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:18:06,322 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:18:06,322 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:18:06,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2023-11-29 05:18:09,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:18:09,397 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:18:09,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2023-11-29 05:18:09,424 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data/d4bf0e603/35e9e168170b4b0c8843071a811e9508/FLAG101056990 [2023-11-29 05:18:09,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data/d4bf0e603/35e9e168170b4b0c8843071a811e9508 [2023-11-29 05:18:09,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:18:09,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:18:09,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:18:09,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:18:09,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:18:09,447 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:18:09" (1/1) ... [2023-11-29 05:18:09,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2668d9e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:09, skipping insertion in model container [2023-11-29 05:18:09,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:18:09" (1/1) ... [2023-11-29 05:18:09,507 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:18:10,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:18:10,275 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:18:10,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:18:10,484 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:10,485 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:10,485 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:10,485 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:10,485 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:10,493 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:18:10,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10 WrapperNode [2023-11-29 05:18:10,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:18:10,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:18:10,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:18:10,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:18:10,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,560 INFO L138 Inliner]: procedures = 499, calls = 67, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-11-29 05:18:10,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:18:10,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:18:10,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:18:10,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:18:10,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,577 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,591 INFO L175 MemorySlicer]: Split 6 memory accesses to 4 slices as follows [1, 2, 1, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 0, 1, 0]. The 3 writes are split as follows [0, 2, 0, 1]. [2023-11-29 05:18:10,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,598 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,605 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:18:10,606 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:18:10,606 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:18:10,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:18:10,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (1/1) ... [2023-11-29 05:18:10,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:18:10,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:18:10,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:18:10,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:18:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-29 05:18:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 05:18:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 05:18:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 05:18:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 05:18:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:18:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:18:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:18:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:18:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 05:18:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 05:18:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 05:18:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 05:18:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 05:18:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:18:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 05:18:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 05:18:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 05:18:10,840 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:18:10,842 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:18:10,958 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:18:10,985 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:18:10,985 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:18:10,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:18:10 BoogieIcfgContainer [2023-11-29 05:18:10,986 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:18:10,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:18:10,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:18:10,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:18:10,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:18:09" (1/3) ... [2023-11-29 05:18:10,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1fc79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:18:10, skipping insertion in model container [2023-11-29 05:18:10,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:10" (2/3) ... [2023-11-29 05:18:10,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1fc79b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:18:10, skipping insertion in model container [2023-11-29 05:18:10,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:18:10" (3/3) ... [2023-11-29 05:18:10,994 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2023-11-29 05:18:11,012 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:18:11,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:18:11,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:18:11,060 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;@42277e51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:18:11,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:18:11,063 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) [2023-11-29 05:18:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 05:18:11,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:18:11,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:18:11,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:18:11,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:18:11,076 INFO L85 PathProgramCache]: Analyzing trace with hash 610853811, now seen corresponding path program 1 times [2023-11-29 05:18:11,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:18:11,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233890156] [2023-11-29 05:18:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:18:11,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:18:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:18:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 05:18:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:18:11,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:18:11,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:18:11,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233890156] [2023-11-29 05:18:11,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233890156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:18:11,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:18:11,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:18:11,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115817838] [2023-11-29 05:18:11,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:18:11,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:18:11,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:18:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:18:11,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:18:11,392 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) [2023-11-29 05:18:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:18:11,431 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-11-29 05:18:11,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:18:11,433 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 [2023-11-29 05:18:11,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:18:11,438 INFO L225 Difference]: With dead ends: 21 [2023-11-29 05:18:11,439 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 05:18:11,441 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 [2023-11-29 05:18:11,444 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:18:11,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:18:11,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 05:18:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 05:18:11,469 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) [2023-11-29 05:18:11,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-29 05:18:11,471 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2023-11-29 05:18:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:18:11,473 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-29 05:18:11,473 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) [2023-11-29 05:18:11,473 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-29 05:18:11,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:18:11,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:18:11,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:18:11,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:18:11,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:18:11,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:18:11,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1756599015, now seen corresponding path program 1 times [2023-11-29 05:18:11,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:18:11,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111782676] [2023-11-29 05:18:11,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:18:11,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:18:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:18:11,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:18:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:18:11,573 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 05:18:11,573 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:18:11,575 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 05:18:11,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 05:18:11,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:18:11,581 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 05:18:11,584 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:18:11,601 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-11-29 05:18:11,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:18:11 BoogieIcfgContainer [2023-11-29 05:18:11,611 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:18:11,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:18:11,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:18:11,611 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:18:11,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:18:10" (3/4) ... [2023-11-29 05:18:11,613 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:18:11,614 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:18:11,615 INFO L158 Benchmark]: Toolchain (without parser) took 2174.35ms. Allocated memory is still 132.1MB. Free memory was 76.9MB in the beginning and 94.5MB in the end (delta: -17.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:18:11,615 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:18:11,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1051.41ms. Allocated memory is still 132.1MB. Free memory was 76.7MB in the beginning and 56.7MB in the end (delta: 19.9MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2023-11-29 05:18:11,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.37ms. Allocated memory is still 132.1MB. Free memory was 56.7MB in the beginning and 100.6MB in the end (delta: -43.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-29 05:18:11,617 INFO L158 Benchmark]: Boogie Preprocessor took 43.77ms. Allocated memory is still 132.1MB. Free memory was 100.6MB in the beginning and 97.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:18:11,617 INFO L158 Benchmark]: RCFGBuilder took 380.28ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 82.4MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 05:18:11,617 INFO L158 Benchmark]: TraceAbstraction took 622.53ms. Allocated memory is still 132.1MB. Free memory was 81.7MB in the beginning and 95.3MB in the end (delta: -13.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:18:11,618 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 132.1MB. Free memory was 95.3MB in the beginning and 94.5MB in the end (delta: 883.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:18:11,621 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 102.8MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1051.41ms. Allocated memory is still 132.1MB. Free memory was 76.7MB in the beginning and 56.7MB in the end (delta: 19.9MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.37ms. Allocated memory is still 132.1MB. Free memory was 56.7MB in the beginning and 100.6MB in the end (delta: -43.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.77ms. Allocated memory is still 132.1MB. Free memory was 100.6MB in the beginning and 97.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.28ms. Allocated memory is still 132.1MB. Free memory was 97.9MB in the beginning and 82.4MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 622.53ms. Allocated memory is still 132.1MB. Free memory was 81.7MB in the beginning and 95.3MB in the end (delta: -13.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 132.1MB. Free memory was 95.3MB in the beginning and 94.5MB in the end (delta: 883.3kB). 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~nondet103 - 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: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1582. 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); [L1582] 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) [L1582] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] CALL CWE190_Integer_Overflow__int_fgets_multiply_34_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_multiply_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] EXPR data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558-L1568] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1572] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={6:0}] [L1574] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={6:0}] - UnprovableResult [Line: 1574]: 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: 0.5s, 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, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 14 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, 0.1s 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 [2023-11-29 05:18:11,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya --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 ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:18:13,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:18:13,619 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 05:18:13,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:18:13,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:18:13,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 05:18:13,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:18:13,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:18:13,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:18:13,663 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:18:13,663 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:18:13,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:18:13,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:18:13,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:18:13,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:18:13,666 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:18:13,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:18:13,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:18:13,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:18:13,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:18:13,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:18:13,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:18:13,670 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 05:18:13,671 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 05:18:13,671 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 05:18:13,672 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 05:18:13,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 05:18:13,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:18:13,673 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:18:13,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:18:13,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:18:13,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:18:13,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:18:13,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:18:13,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:18:13,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:18:13,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:18:13,676 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 05:18:13,676 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 05:18:13,676 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:18:13,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:18:13,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:18:13,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:18:13,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:18:13,677 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 05:18:13,678 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_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab7d49d335dcbabb383c2b5ef4ecb910d32bfd99157b6ef0c9783c8f6ed82420 [2023-11-29 05:18:13,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:18:13,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:18:13,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:18:13,984 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:18:13,984 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:18:13,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2023-11-29 05:18:16,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:18:17,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:18:17,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2023-11-29 05:18:17,083 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data/90f841ecc/2c5d2193f1874c2dbb564912b34a0f21/FLAGcc8e9adff [2023-11-29 05:18:17,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/data/90f841ecc/2c5d2193f1874c2dbb564912b34a0f21 [2023-11-29 05:18:17,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:18:17,103 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:18:17,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:18:17,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:18:17,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:18:17,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:18:17" (1/1) ... [2023-11-29 05:18:17,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb14abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:17, skipping insertion in model container [2023-11-29 05:18:17,112 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:18:17" (1/1) ... [2023-11-29 05:18:17,198 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:18:17,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:18:17,923 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:18:18,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:18:18,162 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:18,163 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:18,163 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:18,163 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:18,163 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 05:18:18,171 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:18:18,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18 WrapperNode [2023-11-29 05:18:18,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:18:18,173 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:18:18,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:18:18,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:18:18,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,233 INFO L138 Inliner]: procedures = 504, calls = 67, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-11-29 05:18:18,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:18:18,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:18:18,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:18:18,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:18:18,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,250 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,265 INFO L175 MemorySlicer]: Split 6 memory accesses to 4 slices as follows [1, 2, 1, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 0, 1, 0]. The 3 writes are split as follows [0, 2, 0, 1]. [2023-11-29 05:18:18,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,266 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:18:18,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:18:18,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:18:18,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:18:18,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (1/1) ... [2023-11-29 05:18:18,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:18:18,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:18:18,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:18:18,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:18:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-29 05:18:18,359 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 05:18:18,360 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 05:18:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 05:18:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 05:18:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 05:18:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 05:18:18,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 05:18:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:18:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:18:18,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:18:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 05:18:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 05:18:18,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 05:18:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 05:18:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 05:18:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 05:18:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 05:18:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 05:18:18,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 05:18:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 05:18:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2023-11-29 05:18:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2023-11-29 05:18:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2023-11-29 05:18:18,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2023-11-29 05:18:18,535 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:18:18,536 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:18:18,683 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:18:18,717 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:18:18,718 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 05:18:18,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:18:18 BoogieIcfgContainer [2023-11-29 05:18:18,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:18:18,721 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:18:18,721 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:18:18,725 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:18:18,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:18:17" (1/3) ... [2023-11-29 05:18:18,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488fff23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:18:18, skipping insertion in model container [2023-11-29 05:18:18,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:18:18" (2/3) ... [2023-11-29 05:18:18,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488fff23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:18:18, skipping insertion in model container [2023-11-29 05:18:18,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:18:18" (3/3) ... [2023-11-29 05:18:18,728 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_34_bad.i [2023-11-29 05:18:18,743 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:18:18,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:18:18,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:18:18,787 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;@fca4b7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:18:18,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:18:18,791 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) [2023-11-29 05:18:18,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 05:18:18,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:18:18,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:18:18,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:18:18,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:18:18,806 INFO L85 PathProgramCache]: Analyzing trace with hash 610853811, now seen corresponding path program 1 times [2023-11-29 05:18:18,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:18:18,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831049472] [2023-11-29 05:18:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:18:18,822 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 [2023-11-29 05:18:18,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:18:18,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:18:18,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:18:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:18:18,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:18:18,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:18:19,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:18:19,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:18:19,015 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 05:18:19,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831049472] [2023-11-29 05:18:19,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831049472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:18:19,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:18:19,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:18:19,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859174261] [2023-11-29 05:18:19,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:18:19,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:18:19,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 05:18:19,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:18:19,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:18:19,052 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) [2023-11-29 05:18:19,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:18:19,108 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-11-29 05:18:19,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:18:19,111 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 [2023-11-29 05:18:19,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:18:19,128 INFO L225 Difference]: With dead ends: 21 [2023-11-29 05:18:19,128 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 05:18:19,131 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 [2023-11-29 05:18:19,135 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:18:19,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 30 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:18:19,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 05:18:19,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 05:18:19,177 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) [2023-11-29 05:18:19,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2023-11-29 05:18:19,182 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2023-11-29 05:18:19,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:18:19,183 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2023-11-29 05:18:19,184 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) [2023-11-29 05:18:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2023-11-29 05:18:19,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 05:18:19,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:18:19,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:18:19,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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)] Forceful destruction successful, exit code 0 [2023-11-29 05:18:19,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:18:19,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 05:18:19,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:18:19,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1756599015, now seen corresponding path program 1 times [2023-11-29 05:18:19,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 05:18:19,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [110029865] [2023-11-29 05:18:19,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:18:19,399 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 [2023-11-29 05:18:19,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 05:18:19,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 05:18:19,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:18:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:18:19,552 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 05:18:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 05:18:19,645 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 05:18:19,645 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 05:18:19,647 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 05:18:19,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 05:18:19,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 05:18:19,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 05:18:19,854 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-29 05:18:19,857 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 05:18:19,874 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-11-29 05:18:19,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 05:18:19 BoogieIcfgContainer [2023-11-29 05:18:19,882 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 05:18:19,883 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 05:18:19,883 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 05:18:19,883 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 05:18:19,884 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:18:18" (3/4) ... [2023-11-29 05:18:19,886 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 05:18:19,887 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 05:18:19,888 INFO L158 Benchmark]: Toolchain (without parser) took 2785.01ms. Allocated memory was 62.9MB in the beginning and 111.1MB in the end (delta: 48.2MB). Free memory was 30.4MB in the beginning and 68.6MB in the end (delta: -38.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2023-11-29 05:18:19,888 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 62.9MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:18:19,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1067.85ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 30.3MB in the beginning and 57.1MB in the end (delta: -26.9MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2023-11-29 05:18:19,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.31ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 54.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 05:18:19,890 INFO L158 Benchmark]: Boogie Preprocessor took 54.85ms. Allocated memory is still 92.3MB. Free memory was 54.1MB in the beginning and 50.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 05:18:19,891 INFO L158 Benchmark]: RCFGBuilder took 429.37ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 58.6MB in the end (delta: -7.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 05:18:19,891 INFO L158 Benchmark]: TraceAbstraction took 1161.36ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.4MB in the beginning and 68.6MB in the end (delta: -11.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-29 05:18:19,892 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 111.1MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 05:18:19,895 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 62.9MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1067.85ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 30.3MB in the beginning and 57.1MB in the end (delta: -26.9MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.31ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 54.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.85ms. Allocated memory is still 92.3MB. Free memory was 54.1MB in the beginning and 50.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 429.37ms. Allocated memory is still 92.3MB. Free memory was 50.8MB in the beginning and 58.6MB in the end (delta: -7.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1161.36ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 57.4MB in the beginning and 68.6MB in the end (delta: -11.2MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 111.1MB. Free memory is still 68.6MB. 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~nondet101 - 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: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1582. 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); [L1582] 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) [L1582] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={18:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] CALL CWE190_Integer_Overflow__int_fgets_multiply_34_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_multiply_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] EXPR data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558-L1568] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1572] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={12:0}] [L1574] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={12:0}] - UnprovableResult [Line: 1574]: 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 14 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 81 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 [2023-11-29 05:18:19,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1778bce7-147c-4c98-957f-38d5b5522fb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample