./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_13_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/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_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/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_bedf4212-625a-496b-a696-b41be9e45b16/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 fbdc6bd5b0e7433cf0a468ec233a0286358ba240a2ea85c7326613015494fa60 --- 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 16:25:37,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:25:37,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:25:37,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:25:37,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:25:37,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:25:37,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:25:37,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:25:37,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:25:37,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:25:37,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:25:37,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:25:37,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:25:37,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:25:37,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:25:37,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:25:37,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:25:37,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:25:37,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:25:37,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:25:37,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:25:37,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:25:37,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:25:37,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:25:37,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:25:37,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:25:37,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:25:37,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:25:37,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:25:37,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:25:37,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:25:37,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:25:37,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:25:37,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:25:37,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:25:37,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:25:37,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:25:37,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:25:37,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:25:37,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:25:37,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:25:37,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 16:25:37,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:25:37,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:25:37,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:25:37,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:25:37,450 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:25:37,451 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:25:37,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:25:37,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:25:37,452 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:25:37,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:25:37,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:25:37,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:25:37,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:25:37,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:25:37,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:25:37,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:25:37,453 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:25:37,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:25:37,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:25:37,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:25:37,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:25:37,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:25:37,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:25:37,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:25:37,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:25:37,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:25:37,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:25:37,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:25:37,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:25:37,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:25:37,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:25:37,456 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:25:37,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:25:37,456 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:25:37,456 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_bedf4212-625a-496b-a696-b41be9e45b16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbdc6bd5b0e7433cf0a468ec233a0286358ba240a2ea85c7326613015494fa60 [2022-12-13 16:25:37,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:25:37,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:25:37,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:25:37,663 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:25:37,664 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:25:37,664 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_13_bad.i [2022-12-13 16:25:40,309 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:25:40,519 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:25:40,519 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_13_bad.i [2022-12-13 16:25:40,533 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/data/30bc289f7/44a37843d079490bbc63c0511664aca7/FLAG45c49883b [2022-12-13 16:25:40,543 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/data/30bc289f7/44a37843d079490bbc63c0511664aca7 [2022-12-13 16:25:40,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:25:40,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:25:40,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:25:40,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:25:40,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:25:40,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:25:40" (1/1) ... [2022-12-13 16:25:40,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5586467f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:40, skipping insertion in model container [2022-12-13 16:25:40,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:25:40" (1/1) ... [2022-12-13 16:25:40,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:25:40,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:25:40,827 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:25:41,094 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:25:41,098 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:25:41,100 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:25:41,101 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:25:41,102 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:25:41,118 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:25:41,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:25:41,126 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:25:41,139 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:25:41,169 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:25:41,171 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:25:41,171 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:25:41,173 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:25:41,173 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:25:41,176 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:25:41,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:25:41,269 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:25:41,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41 WrapperNode [2022-12-13 16:25:41,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:25:41,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:25:41,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:25:41,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:25:41,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,304 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2022-12-13 16:25:41,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:25:41,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:25:41,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:25:41,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:25:41,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:25:41,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:25:41,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:25:41,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:25:41,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (1/1) ... [2022-12-13 16:25:41,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:25:41,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:25:41,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:25:41,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:25:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:25:41,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:25:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:25:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:25:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:25:41,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:25:41,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:25:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:25:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:25:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:25:41,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:25:41,484 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:25:41,486 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:25:41,584 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:25:41,589 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:25:41,590 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:25:41,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:25:41 BoogieIcfgContainer [2022-12-13 16:25:41,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:25:41,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:25:41,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:25:41,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:25:41,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:25:40" (1/3) ... [2022-12-13 16:25:41,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a90de7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:25:41, skipping insertion in model container [2022-12-13 16:25:41,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:25:41" (2/3) ... [2022-12-13 16:25:41,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a90de7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:25:41, skipping insertion in model container [2022-12-13 16:25:41,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:25:41" (3/3) ... [2022-12-13 16:25:41,598 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_13_bad.i [2022-12-13 16:25:41,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:25:41,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:25:41,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:25:41,658 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;@479f6d33, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:25:41,658 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:25:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 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) [2022-12-13 16:25:41,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:25:41,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:25:41,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:25:41,667 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:25:41,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:25:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash 2097189102, now seen corresponding path program 1 times [2022-12-13 16:25:41,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:25:41,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232090475] [2022-12-13 16:25:41,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:25:41,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:25:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:25:41,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:25:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:25:41,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:25:41,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:25:41,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232090475] [2022-12-13 16:25:41,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232090475] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:25:41,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:25:41,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:25:41,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698566852] [2022-12-13 16:25:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:25:41,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:25:41,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:25:41,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:25:41,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:25:41,913 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 18 states have internal predecessors, (21), 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) Second operand has 3 states, 3 states have (on average 3.0) 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) [2022-12-13 16:25:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:25:41,939 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-12-13 16:25:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:25:41,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) 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 [2022-12-13 16:25:41,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:25:41,946 INFO L225 Difference]: With dead ends: 39 [2022-12-13 16:25:41,946 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 16:25:41,948 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 [2022-12-13 16:25:41,950 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:25:41,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 21 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:25:41,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 16:25:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 16:25:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-12-13 16:25:41,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-12-13 16:25:41,974 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2022-12-13 16:25:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:25:41,974 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-12-13 16:25:41,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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) [2022-12-13 16:25:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-12-13 16:25:41,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:25:41,975 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:25:41,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:25:41,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:25:41,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:25:41,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:25:41,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times [2022-12-13 16:25:41,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:25:41,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023704892] [2022-12-13 16:25:41,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:25:41,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:25:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:25:42,009 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:25:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:25:42,045 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:25:42,046 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:25:42,047 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:25:42,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:25:42,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:25:42,053 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:25:42,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:25:42,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:25:42 BoogieIcfgContainer [2022-12-13 16:25:42,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:25:42,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:25:42,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:25:42,077 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:25:42,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:25:41" (3/4) ... [2022-12-13 16:25:42,079 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 16:25:42,106 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:25:42,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:25:42,107 INFO L158 Benchmark]: Toolchain (without parser) took 1560.50ms. Allocated memory is still 132.1MB. Free memory was 95.4MB in the beginning and 75.7MB in the end (delta: 19.7MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2022-12-13 16:25:42,107 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:25:42,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 722.69ms. Allocated memory is still 132.1MB. Free memory was 95.4MB in the beginning and 80.8MB in the end (delta: 14.6MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2022-12-13 16:25:42,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.33ms. Allocated memory is still 132.1MB. Free memory was 80.8MB in the beginning and 77.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:25:42,108 INFO L158 Benchmark]: Boogie Preprocessor took 17.52ms. Allocated memory is still 132.1MB. Free memory was 77.8MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:25:42,108 INFO L158 Benchmark]: RCFGBuilder took 269.13ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 64.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:25:42,109 INFO L158 Benchmark]: TraceAbstraction took 482.11ms. Allocated memory is still 132.1MB. Free memory was 63.2MB in the beginning and 77.9MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:25:42,109 INFO L158 Benchmark]: Witness Printer took 29.50ms. Allocated memory is still 132.1MB. Free memory was 77.9MB in the beginning and 75.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:25:42,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 722.69ms. Allocated memory is still 132.1MB. Free memory was 95.4MB in the beginning and 80.8MB in the end (delta: 14.6MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.33ms. Allocated memory is still 132.1MB. Free memory was 80.8MB in the beginning and 77.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.52ms. Allocated memory is still 132.1MB. Free memory was 77.8MB in the beginning and 76.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.13ms. Allocated memory is still 132.1MB. Free memory was 76.6MB in the beginning and 64.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 482.11ms. Allocated memory is still 132.1MB. Free memory was 63.2MB in the beginning and 77.9MB in the end (delta: -14.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.50ms. Allocated memory is still 132.1MB. Free memory was 77.9MB in the beginning and 75.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1559]: 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] [L1568] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741830}, argv={1073741826:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_fscanf_postdec_13_bad() [L1550] int data; [L1551] data = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1556] COND TRUE GLOBAL_CONST_FIVE==5 [L1559] EXPR \read(data) [L1559] data-- VAL [\read(data)=-2147483648, data={5:0}, data--=-2147483648, 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 2 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=22occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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 proved your program to be incorrect! [2022-12-13 16:25:42,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bedf4212-625a-496b-a696-b41be9e45b16/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)