./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R --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 a5c70f444a3bb6b30e83bffdf1e61714f8f2c3aa7bf7e3910c6ab80a1b5b19ac --- 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-38b53e6 [2022-11-25 17:27:26,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:27:26,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:27:26,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:27:26,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:27:26,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:27:26,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:27:26,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:27:26,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:27:26,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:27:26,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:27:26,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:27:26,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:27:26,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:27:26,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:27:26,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:27:26,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:27:26,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:27:26,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:27:26,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:27:26,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:27:26,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:27:26,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:27:26,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:27:26,716 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:27:26,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:27:26,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:27:26,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:27:26,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:27:26,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:27:26,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:27:26,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:27:26,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:27:26,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:27:26,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:27:26,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:27:26,745 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:27:26,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:27:26,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:27:26,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:27:26,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:27:26,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:27:26,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:27:26,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:27:26,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:27:26,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:27:26,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:27:26,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:27:26,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:27:26,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:27:26,797 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:27:26,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:27:26,798 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:27:26,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:27:26,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:27:26,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:27:26,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:27:26,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:27:26,799 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:27:26,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:27:26,800 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:27:26,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:27:26,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:27:26,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:27:26,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:27:26,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:27:26,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:27:26,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:27:26,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:27:26,802 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:27:26,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:27:26,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:27:26,803 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:27:26,803 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:27:26,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:27:26,804 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_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5c70f444a3bb6b30e83bffdf1e61714f8f2c3aa7bf7e3910c6ab80a1b5b19ac [2022-11-25 17:27:27,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:27:27,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:27:27,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:27:27,220 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:27:27,221 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:27:27,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i [2022-11-25 17:27:30,632 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:27:31,111 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:27:31,112 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i [2022-11-25 17:27:31,136 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/data/e52bbf2c1/f5f766a8f66c4dc9bd2a1efb250822b9/FLAG659bcd6d4 [2022-11-25 17:27:31,155 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/data/e52bbf2c1/f5f766a8f66c4dc9bd2a1efb250822b9 [2022-11-25 17:27:31,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:27:31,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:27:31,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:27:31,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:27:31,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:27:31,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:27:31" (1/1) ... [2022-11-25 17:27:31,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3090defd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:31, skipping insertion in model container [2022-11-25 17:27:31,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:27:31" (1/1) ... [2022-11-25 17:27:31,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:27:31,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:27:31,759 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:27:32,231 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:27:32,236 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:27:32,239 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:27:32,242 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:27:32,243 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:27:32,266 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:27:32,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:27:32,281 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:27:32,305 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:27:32,382 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:27:32,399 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:27:32,401 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:27:32,403 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:27:32,410 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:27:32,415 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:27:32,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:27:32,563 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:27:32,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32 WrapperNode [2022-11-25 17:27:32,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:27:32,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:27:32,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:27:32,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:27:32,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,652 INFO L138 Inliner]: procedures = 500, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-11-25 17:27:32,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:27:32,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:27:32,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:27:32,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:27:32,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,710 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:27:32,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:27:32,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:27:32,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:27:32,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (1/1) ... [2022-11-25 17:27:32,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:27:32,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:27:32,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:27:32,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:27:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:27:32,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:27:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:27:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:27:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:27:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:27:32,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:27:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:27:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:27:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:27:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:27:33,040 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:27:33,043 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:27:33,316 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:27:33,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:27:33,322 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:27:33,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:27:33 BoogieIcfgContainer [2022-11-25 17:27:33,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:27:33,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:27:33,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:27:33,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:27:33,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:27:31" (1/3) ... [2022-11-25 17:27:33,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244db958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:27:33, skipping insertion in model container [2022-11-25 17:27:33,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:27:32" (2/3) ... [2022-11-25 17:27:33,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244db958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:27:33, skipping insertion in model container [2022-11-25 17:27:33,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:27:33" (3/3) ... [2022-11-25 17:27:33,333 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_multiply_67_bad.i [2022-11-25 17:27:33,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:27:33,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:27:33,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:27:33,433 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;@47726d5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:27:33,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:27:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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) [2022-11-25 17:27:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 17:27:33,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:33,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:33,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:27:33,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:33,452 INFO L85 PathProgramCache]: Analyzing trace with hash 993488621, now seen corresponding path program 1 times [2022-11-25 17:27:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:33,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887051522] [2022-11-25 17:27:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:33,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:27:33,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:27:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:27:33,788 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:27:33,790 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:27:33,791 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:27:33,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:27:33,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:27:33,799 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:27:33,811 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:27:33,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:27:33 BoogieIcfgContainer [2022-11-25 17:27:33,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:27:33,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:27:33,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:27:33,841 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:27:33,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:27:33" (3/4) ... [2022-11-25 17:27:33,844 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:27:33,890 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:27:33,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:27:33,892 INFO L158 Benchmark]: Toolchain (without parser) took 2711.11ms. Allocated memory is still 184.5MB. Free memory was 154.9MB in the beginning and 122.6MB in the end (delta: 32.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-11-25 17:27:33,893 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:27:33,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1380.64ms. Allocated memory is still 184.5MB. Free memory was 154.9MB in the beginning and 93.1MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-25 17:27:33,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.64ms. Allocated memory is still 184.5MB. Free memory was 93.1MB in the beginning and 89.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:27:33,894 INFO L158 Benchmark]: Boogie Preprocessor took 60.08ms. Allocated memory is still 184.5MB. Free memory was 89.9MB in the beginning and 88.9MB in the end (delta: 999.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:27:33,895 INFO L158 Benchmark]: RCFGBuilder took 610.00ms. Allocated memory is still 184.5MB. Free memory was 88.8MB in the beginning and 145.7MB in the end (delta: -56.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:27:33,896 INFO L158 Benchmark]: TraceAbstraction took 513.56ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 125.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:27:33,896 INFO L158 Benchmark]: Witness Printer took 50.61ms. Allocated memory is still 184.5MB. Free memory was 125.8MB in the beginning and 122.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:27:33,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 134.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1380.64ms. Allocated memory is still 184.5MB. Free memory was 154.9MB in the beginning and 93.1MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.64ms. Allocated memory is still 184.5MB. Free memory was 93.1MB in the beginning and 89.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.08ms. Allocated memory is still 184.5MB. Free memory was 89.9MB in the beginning and 88.9MB in the end (delta: 999.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 610.00ms. Allocated memory is still 184.5MB. Free memory was 88.8MB in the beginning and 145.7MB in the end (delta: -56.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 513.56ms. Allocated memory is still 184.5MB. Free memory was 144.7MB in the beginning and 125.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 50.61ms. Allocated memory is still 184.5MB. Free memory was 125.8MB in the beginning and 122.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 1574]: 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] [L1565] 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) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=1073741832, argc=1073741832, argv={1073741828:1073741834}, argv={1073741828:1073741834}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_fscanf_multiply_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fscanf_multiply_67_structType myStruct; [L1557] data = 0 [L1559] EXPR \read(data) [L1559] myStruct.structFirst = data [L1560] CALL CWE191_Integer_Underflow__int_fscanf_multiply_67b_badSink(myStruct) [L1571] EXPR myStruct.structFirst [L1571] int data = myStruct.structFirst; [L1572] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}, unknown-#in~myStruct!structFirst-unknown=-1073741825] [L1574] data * 2 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={6:0}, unknown-#in~myStruct!structFirst-unknown=-1073741825] - 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=22occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 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! [2022-11-25 17:27:33,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53a400bb-4933-4e19-86a6-1e03c1408b2e/bin/uautomizer-ZsLfNo2U6R/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)