./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 9a83bbe71d95f90bda7be75f87886bf3447de0fd6d22250a6029d14606d039a3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:24:45,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:24:45,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:24:45,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:24:45,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:24:45,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:24:45,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:24:45,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:24:45,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:24:45,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:24:45,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:24:45,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:24:45,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:24:45,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:24:45,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:24:45,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:24:45,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:24:45,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:24:45,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:24:45,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:24:45,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:24:45,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:24:45,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:24:45,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:24:45,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:24:45,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:24:45,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:24:45,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:24:45,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:24:45,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:24:45,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:24:45,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:24:45,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:24:45,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:24:45,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:24:45,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:24:45,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:24:45,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:24:45,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:24:45,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:24:45,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:24:45,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 22:24:45,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:24:45,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:24:45,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:24:45,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:24:45,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:24:45,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:24:45,082 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:24:45,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:24:45,083 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:24:45,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:24:45,083 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:24:45,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:24:45,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:24:45,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:24:45,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:24:45,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:24:45,084 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:24:45,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:24:45,085 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:24:45,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:24:45,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:24:45,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:24:45,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:24:45,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:24:45,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:24:45,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:24:45,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:24:45,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:24:45,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:24:45,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:24:45,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:24:45,087 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:24:45,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:24:45,092 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:24:45,092 INFO L138 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_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a83bbe71d95f90bda7be75f87886bf3447de0fd6d22250a6029d14606d039a3 [2022-12-13 22:24:45,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:24:45,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:24:45,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:24:45,293 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:24:45,293 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:24:45,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_15_bad.i [2022-12-13 22:24:47,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:24:48,117 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:24:48,118 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_15_bad.i [2022-12-13 22:24:48,134 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/data/1df5a86a5/18fabe266a92438090fb6dcfe65547f3/FLAG1006bdde6 [2022-12-13 22:24:48,413 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/data/1df5a86a5/18fabe266a92438090fb6dcfe65547f3 [2022-12-13 22:24:48,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:24:48,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:24:48,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:24:48,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:24:48,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:24:48,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:24:48" (1/1) ... [2022-12-13 22:24:48,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d63867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:48, skipping insertion in model container [2022-12-13 22:24:48,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:24:48" (1/1) ... [2022-12-13 22:24:48,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:24:48,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:24:48,732 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:24:49,009 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:24:49,014 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:24:49,015 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:24:49,017 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:24:49,018 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:24:49,036 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:24:49,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:24:49,045 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:24:49,060 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:24:49,093 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:24:49,094 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:24:49,095 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:24:49,096 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:24:49,097 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:24:49,100 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:24:49,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:24:49,169 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:24:49,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49 WrapperNode [2022-12-13 22:24:49,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:24:49,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:24:49,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:24:49,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:24:49,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,212 INFO L138 Inliner]: procedures = 499, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-12-13 22:24:49,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:24:49,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:24:49,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:24:49,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:24:49,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:24:49,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:24:49,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:24:49,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:24:49,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (1/1) ... [2022-12-13 22:24:49,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:24:49,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:24:49,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:24:49,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:24:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 22:24:49,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 22:24:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:24:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:24:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:24:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:24:49,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:24:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:24:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 22:24:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:24:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:24:49,386 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:24:49,387 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:24:49,489 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:24:49,493 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:24:49,493 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:24:49,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:24:49 BoogieIcfgContainer [2022-12-13 22:24:49,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:24:49,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:24:49,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:24:49,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:24:49,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:24:48" (1/3) ... [2022-12-13 22:24:49,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdaf6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:24:49, skipping insertion in model container [2022-12-13 22:24:49,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:24:49" (2/3) ... [2022-12-13 22:24:49,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cdaf6f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:24:49, skipping insertion in model container [2022-12-13 22:24:49,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:24:49" (3/3) ... [2022-12-13 22:24:49,500 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_15_bad.i [2022-12-13 22:24:49,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:24:49,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 22:24:49,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:24:49,550 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=LoopsAndPotentialCycles, 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;@19a48aea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:24:49,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 22:24:49,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.4) internal successors, (28), 24 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 22:24:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 22:24:49,559 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:24:49,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:24:49,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:24:49,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:24:49,563 INFO L85 PathProgramCache]: Analyzing trace with hash 957707381, now seen corresponding path program 1 times [2022-12-13 22:24:49,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:24:49,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913238699] [2022-12-13 22:24:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:24:49,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:24:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:24:49,662 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:24:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:24:49,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:24:49,695 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:24:49,696 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 22:24:49,697 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 22:24:49,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:24:49,701 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 22:24:49,704 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:24:49,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:24:49 BoogieIcfgContainer [2022-12-13 22:24:49,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:24:49,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:24:49,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:24:49,723 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:24:49,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:24:49" (3/4) ... [2022-12-13 22:24:49,725 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 22:24:49,751 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:24:49,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:24:49,752 INFO L158 Benchmark]: Toolchain (without parser) took 1335.60ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 89.9MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 22:24:49,752 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:24:49,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.30ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 74.4MB in the end (delta: 23.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-12-13 22:24:49,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.80ms. Allocated memory is still 151.0MB. Free memory was 74.4MB in the beginning and 71.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:24:49,753 INFO L158 Benchmark]: Boogie Preprocessor took 18.88ms. Allocated memory is still 151.0MB. Free memory was 71.5MB in the beginning and 70.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:24:49,753 INFO L158 Benchmark]: RCFGBuilder took 262.21ms. Allocated memory is still 151.0MB. Free memory was 70.3MB in the beginning and 109.7MB in the end (delta: -39.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 22:24:49,754 INFO L158 Benchmark]: TraceAbstraction took 226.39ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 92.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 22:24:49,754 INFO L158 Benchmark]: Witness Printer took 28.38ms. Allocated memory is still 151.0MB. Free memory was 92.0MB in the beginning and 89.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:24:49,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 113.2MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.30ms. Allocated memory is still 151.0MB. Free memory was 97.7MB in the beginning and 74.4MB in the end (delta: 23.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.80ms. Allocated memory is still 151.0MB. Free memory was 74.4MB in the beginning and 71.5MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.88ms. Allocated memory is still 151.0MB. Free memory was 71.5MB in the beginning and 70.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 262.21ms. Allocated memory is still 151.0MB. Free memory was 70.3MB in the beginning and 109.7MB in the end (delta: -39.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 226.39ms. Allocated memory is still 151.0MB. Free memory was 108.8MB in the beginning and 92.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 28.38ms. Allocated memory is still 151.0MB. Free memory was 92.0MB in the beginning and 89.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - 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 - CounterExampleResult [Line: 1566]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741828:1073741831}, argv={1073741828:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fscanf_multiply_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1563] case 7: [L1564] EXPR \read(data) VAL [\read(data)=-1073741825, data={6:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] COND TRUE data < 0 [L1566] EXPR \read(data) VAL [\read(data)=-1073741825, data={6:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] data * 2 VAL [\read(data)=-1073741825, data={6:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1566]: 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, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 22:24:49,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04285503-7809-4fbb-a6d3-cd44e87a1ed1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)