./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_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_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/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_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/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_33e27b64-7f93-4506-8f29-c5b43955277d/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 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 --- 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 12:39:35,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:39:35,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:39:35,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:39:35,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:39:35,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:39:35,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:39:35,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:39:35,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:39:35,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:39:35,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:39:35,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:39:35,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:39:35,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:39:35,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:39:35,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:39:35,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:39:35,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:39:35,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:39:35,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:39:35,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:39:35,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:39:35,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:39:35,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:39:35,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:39:35,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:39:35,442 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:39:35,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:39:35,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:39:35,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:39:35,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:39:35,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:39:35,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:39:35,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:39:35,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:39:35,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:39:35,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:39:35,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:39:35,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:39:35,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:39:35,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:39:35,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:39:35,469 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:39:35,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:39:35,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:39:35,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:39:35,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:39:35,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:39:35,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:39:35,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:39:35,472 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:39:35,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:39:35,472 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:39:35,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:39:35,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:39:35,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:39:35,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:39:35,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:39:35,473 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:39:35,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:39:35,473 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:39:35,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:39:35,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:39:35,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:39:35,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:39:35,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:39:35,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:39:35,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:39:35,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:39:35,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:39:35,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:39:35,476 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:39:35,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:39:35,476 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:39:35,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:39:35,476 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:39:35,477 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_33e27b64-7f93-4506-8f29-c5b43955277d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 [2022-12-13 12:39:35,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:39:35,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:39:35,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:39:35,705 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:39:35,705 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:39:35,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-12-13 12:39:38,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:39:38,502 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:39:38,502 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-12-13 12:39:38,521 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data/700ff3004/255c343930ee45deb775accf0f98f09e/FLAGfcad9fc7c [2022-12-13 12:39:38,758 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data/700ff3004/255c343930ee45deb775accf0f98f09e [2022-12-13 12:39:38,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:39:38,761 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:39:38,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:39:38,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:39:38,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:39:38,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:39:38" (1/1) ... [2022-12-13 12:39:38,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94d6afa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:38, skipping insertion in model container [2022-12-13 12:39:38,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:39:38" (1/1) ... [2022-12-13 12:39:38,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:39:38,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:39:39,025 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:39:39,313 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:39:39,317 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:39,318 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:39,320 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:39,320 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:39,336 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:39:39,340 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:39:39,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:39:39,349 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:39:39,363 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:39:39,407 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:39:39,409 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:39,410 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:39,412 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:39,413 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:39,417 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:39:39,419 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:39:39,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:39:39,519 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:39:39,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39 WrapperNode [2022-12-13 12:39:39,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:39:39,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:39:39,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:39:39,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:39:39,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,569 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-12-13 12:39:39,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:39:39,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:39:39,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:39:39,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:39:39,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:39:39,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:39:39,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:39:39,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:39:39,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (1/1) ... [2022-12-13 12:39:39,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:39:39,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:39:39,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:39:39,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:39:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:39:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:39:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:39:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:39:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 12:39:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:39:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:39:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:39:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:39:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:39:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:39:39,765 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:39:39,766 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:39:39,861 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:39:39,866 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:39:39,866 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:39:39,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:39 BoogieIcfgContainer [2022-12-13 12:39:39,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:39:39,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:39:39,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:39:39,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:39:39,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:39:38" (1/3) ... [2022-12-13 12:39:39,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfe97e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:39:39, skipping insertion in model container [2022-12-13 12:39:39,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:39" (2/3) ... [2022-12-13 12:39:39,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bfe97e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:39:39, skipping insertion in model container [2022-12-13 12:39:39,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:39" (3/3) ... [2022-12-13 12:39:39,874 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-12-13 12:39:39,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:39:39,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:39:39,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:39:39,932 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;@f5e63c3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:39:39,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:39:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:39:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:39:39,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:39:39,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:39:39,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:39:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:39,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-12-13 12:39:39,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:39:39,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399797361] [2022-12-13 12:39:39,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:39,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:39:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:40,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:39:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:40,188 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 12:39:40,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:39:40,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399797361] [2022-12-13 12:39:40,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399797361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:40,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:40,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:39:40,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110639860] [2022-12-13 12:39:40,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:40,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:39:40,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:39:40,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:39:40,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:39:40,217 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12:39:40,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:39:40,238 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-12-13 12:39:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:39:40,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-13 12:39:40,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:39:40,245 INFO L225 Difference]: With dead ends: 42 [2022-12-13 12:39:40,245 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 12:39:40,247 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 12:39:40,249 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 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 12:39:40,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:39:40,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 12:39:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 12:39:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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 12:39:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-13 12:39:40,272 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-12-13 12:39:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:39:40,273 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-13 12:39:40,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 12:39:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-13 12:39:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 12:39:40,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:39:40,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:39:40,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:39:40,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:39:40,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-12-13 12:39:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:39:40,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119959401] [2022-12-13 12:39:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:40,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:39:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:40,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:39:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:40,340 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 12:39:40,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:39:40,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119959401] [2022-12-13 12:39:40,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119959401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:40,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:40,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:39:40,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986707990] [2022-12-13 12:39:40,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:40,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:39:40,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:39:40,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:39:40,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:39:40,343 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 12:39:40,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:39:40,351 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-13 12:39:40,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:39:40,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) Word has length 14 [2022-12-13 12:39:40,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:39:40,353 INFO L225 Difference]: With dead ends: 18 [2022-12-13 12:39:40,353 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 12:39:40,353 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 12:39:40,354 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:39:40,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:39:40,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 12:39:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 12:39:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 12:39:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-13 12:39:40,357 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-12-13 12:39:40,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:39:40,357 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-13 12:39:40,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 12:39:40,358 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-13 12:39:40,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 12:39:40,358 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:39:40,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:39:40,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:39:40,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:39:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-12-13 12:39:40,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:39:40,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495709738] [2022-12-13 12:39:40,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:40,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:39:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:39:40,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:39:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:39:40,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:39:40,404 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:39:40,405 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:39:40,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:39:40,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:39:40,410 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 12:39:40,412 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:39:40,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:39:40 BoogieIcfgContainer [2022-12-13 12:39:40,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:39:40,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:39:40,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:39:40,431 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:39:40,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:39" (3/4) ... [2022-12-13 12:39:40,434 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:39:40,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:39:40,434 INFO L158 Benchmark]: Toolchain (without parser) took 1673.60ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 89.0MB in the beginning and 75.9MB in the end (delta: 13.1MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-12-13 12:39:40,435 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 95.9MB in the beginning and 95.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:39:40,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.61ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.6MB in the beginning and 89.8MB in the end (delta: -1.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-12-13 12:39:40,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.74ms. Allocated memory is still 146.8MB. Free memory was 89.8MB in the beginning and 87.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:39:40,436 INFO L158 Benchmark]: Boogie Preprocessor took 24.09ms. Allocated memory is still 146.8MB. Free memory was 87.1MB in the beginning and 85.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:39:40,436 INFO L158 Benchmark]: RCFGBuilder took 273.09ms. Allocated memory is still 146.8MB. Free memory was 85.6MB in the beginning and 72.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 12:39:40,437 INFO L158 Benchmark]: TraceAbstraction took 561.08ms. Allocated memory is still 146.8MB. Free memory was 71.7MB in the beginning and 76.9MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:39:40,437 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 146.8MB. Free memory was 76.9MB in the beginning and 75.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:39:40,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 95.9MB in the beginning and 95.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.61ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 88.6MB in the beginning and 89.8MB in the end (delta: -1.2MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.74ms. Allocated memory is still 146.8MB. Free memory was 89.8MB in the beginning and 87.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.09ms. Allocated memory is still 146.8MB. Free memory was 87.1MB in the beginning and 85.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 273.09ms. Allocated memory is still 146.8MB. Free memory was 85.6MB in the beginning and 72.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 561.08ms. Allocated memory is still 146.8MB. Free memory was 71.7MB in the beginning and 76.9MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 146.8MB. Free memory was 76.9MB in the beginning and 75.9MB in the end (delta: 1.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1580] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741827:1073741830}, argv={1073741827:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_multiply_04_bad() [L1552] int data; [L1553] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1570] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1572] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1572]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:39:40,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/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_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/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 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 --- 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 12:39:41,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:39:41,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:39:42,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:39:42,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:39:42,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:39:42,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:39:42,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:39:42,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:39:42,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:39:42,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:39:42,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:39:42,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:39:42,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:39:42,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:39:42,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:39:42,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:39:42,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:39:42,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:39:42,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:39:42,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:39:42,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:39:42,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:39:42,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:39:42,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:39:42,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:39:42,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:39:42,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:39:42,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:39:42,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:39:42,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:39:42,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:39:42,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:39:42,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:39:42,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:39:42,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:39:42,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:39:42,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:39:42,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:39:42,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:39:42,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:39:42,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 12:39:42,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:39:42,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:39:42,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:39:42,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:39:42,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:39:42,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:39:42,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:39:42,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:39:42,050 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:39:42,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:39:42,050 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:39:42,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:39:42,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:39:42,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:39:42,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:39:42,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:39:42,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:39:42,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:39:42,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:39:42,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:39:42,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:39:42,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:39:42,052 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:39:42,052 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:39:42,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:39:42,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:39:42,053 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:39:42,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:39:42,053 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:39:42,053 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:39:42,053 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_33e27b64-7f93-4506-8f29-c5b43955277d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9559b27db3126f817e39cf5fb1b89427d83249b605bbac6501c6e4936d8cb1c7 [2022-12-13 12:39:42,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:39:42,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:39:42,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:39:42,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:39:42,313 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:39:42,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-12-13 12:39:44,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:39:45,156 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:39:45,157 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-12-13 12:39:45,170 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data/cf9acd497/838c42ab8b9c4107824de8aa074ed66a/FLAG6cb4b20d0 [2022-12-13 12:39:45,181 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/data/cf9acd497/838c42ab8b9c4107824de8aa074ed66a [2022-12-13 12:39:45,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:39:45,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:39:45,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:39:45,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:39:45,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:39:45,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:45,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38763d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45, skipping insertion in model container [2022-12-13 12:39:45,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:45,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:39:45,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:39:45,469 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:39:45,772 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:39:45,775 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:45,776 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:45,778 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:45,778 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:45,792 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:39:45,796 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:39:45,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:39:45,807 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:39:45,821 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:39:45,855 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:39:45,856 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:45,857 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:39:45,859 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:45,859 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:39:45,863 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:39:45,864 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:39:45,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:39:45,990 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:39:45,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45 WrapperNode [2022-12-13 12:39:45,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:39:45,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:39:45,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:39:45,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:39:45,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,038 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-12-13 12:39:46,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:39:46,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:39:46,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:39:46,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:39:46,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,055 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:39:46,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:39:46,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:39:46,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:39:46,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (1/1) ... [2022-12-13 12:39:46,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:39:46,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:39:46,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:39:46,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:39:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:39:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:39:46,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:39:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:39:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:39:46,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:39:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:39:46,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:39:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:39:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:39:46,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 12:39:46,233 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:39:46,234 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:39:46,358 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:39:46,364 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:39:46,364 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:39:46,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:46 BoogieIcfgContainer [2022-12-13 12:39:46,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:39:46,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:39:46,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:39:46,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:39:46,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:39:45" (1/3) ... [2022-12-13 12:39:46,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172ddff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:39:46, skipping insertion in model container [2022-12-13 12:39:46,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:39:45" (2/3) ... [2022-12-13 12:39:46,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@172ddff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:39:46, skipping insertion in model container [2022-12-13 12:39:46,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:46" (3/3) ... [2022-12-13 12:39:46,374 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_04_bad.i [2022-12-13 12:39:46,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:39:46,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:39:46,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:39:46,431 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;@28b60ec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:39:46,431 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:39:46,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:39:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 12:39:46,442 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:39:46,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:39:46,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:39:46,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:46,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-12-13 12:39:46,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:39:46,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [728997257] [2022-12-13 12:39:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:46,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:39:46,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:39:46,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:39:46,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 12:39:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:46,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:39:46,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:39:46,633 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 12:39:46,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:39:46,633 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:39:46,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [728997257] [2022-12-13 12:39:46,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [728997257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:46,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:46,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:39:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157312414] [2022-12-13 12:39:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:46,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:39:46,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:39:46,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:39:46,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:39:46,661 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 12:39:46,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:39:46,685 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-12-13 12:39:46,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:39:46,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2022-12-13 12:39:46,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:39:46,692 INFO L225 Difference]: With dead ends: 42 [2022-12-13 12:39:46,692 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 12:39:46,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 12:39:46,696 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 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 12:39:46,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:39:46,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 12:39:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 12:39:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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 12:39:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-13 12:39:46,719 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-12-13 12:39:46,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:39:46,720 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-13 12:39:46,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 12:39:46,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-13 12:39:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 12:39:46,721 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:39:46,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:39:46,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:39:46,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:39:46,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:39:46,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-12-13 12:39:46,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:39:46,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183313170] [2022-12-13 12:39:46,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:46,930 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:39:46,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:39:46,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:39:46,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 12:39:47,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:39:47,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 12:39:47,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:39:47,104 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 12:39:47,104 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:39:47,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:39:47,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183313170] [2022-12-13 12:39:47,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183313170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:39:47,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:39:47,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:39:47,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446993967] [2022-12-13 12:39:47,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:39:47,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:39:47,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:39:47,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:39:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:39:47,108 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 12:39:47,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:39:47,120 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-13 12:39:47,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:39:47,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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) Word has length 14 [2022-12-13 12:39:47,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:39:47,121 INFO L225 Difference]: With dead ends: 18 [2022-12-13 12:39:47,121 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 12:39:47,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 12:39:47,122 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:39:47,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:39:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 12:39:47,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 12:39:47,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 12:39:47,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-13 12:39:47,127 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-12-13 12:39:47,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:39:47,127 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-13 12:39:47,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 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 12:39:47,128 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-13 12:39:47,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 12:39:47,128 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:39:47,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:39:47,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 12:39:47,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:39:47,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:39:47,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:39:47,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-12-13 12:39:47,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:39:47,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683021931] [2022-12-13 12:39:47,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:39:47,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:39:47,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:39:47,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:39:47,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 12:39:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:39:47,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:39:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:39:47,463 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:39:47,464 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:39:47,465 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:39:47,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:39:47,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 12:39:47,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:39:47,678 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 12:39:47,690 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:39:47,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:39:47 BoogieIcfgContainer [2022-12-13 12:39:47,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:39:47,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:39:47,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:39:47,739 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:39:47,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:39:46" (3/4) ... [2022-12-13 12:39:47,741 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:39:47,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:39:47,742 INFO L158 Benchmark]: Toolchain (without parser) took 2557.50ms. Allocated memory is still 81.8MB. Free memory was 57.1MB in the beginning and 44.5MB in the end (delta: 12.6MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-12-13 12:39:47,742 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:39:47,742 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.78ms. Allocated memory is still 81.8MB. Free memory was 56.9MB in the beginning and 33.0MB in the end (delta: 23.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-12-13 12:39:47,743 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.34ms. Allocated memory is still 81.8MB. Free memory was 33.0MB in the beginning and 54.9MB in the end (delta: -21.9MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-12-13 12:39:47,743 INFO L158 Benchmark]: Boogie Preprocessor took 19.96ms. Allocated memory is still 81.8MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:39:47,743 INFO L158 Benchmark]: RCFGBuilder took 306.65ms. Allocated memory is still 81.8MB. Free memory was 52.6MB in the beginning and 38.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:39:47,743 INFO L158 Benchmark]: TraceAbstraction took 1370.47ms. Allocated memory is still 81.8MB. Free memory was 37.9MB in the beginning and 44.5MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:39:47,744 INFO L158 Benchmark]: Witness Printer took 2.80ms. Allocated memory is still 81.8MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:39:47,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.78ms. Allocated memory is still 81.8MB. Free memory was 56.9MB in the beginning and 33.0MB in the end (delta: 23.9MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.34ms. Allocated memory is still 81.8MB. Free memory was 33.0MB in the beginning and 54.9MB in the end (delta: -21.9MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.96ms. Allocated memory is still 81.8MB. Free memory was 54.7MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.65ms. Allocated memory is still 81.8MB. Free memory was 52.6MB in the beginning and 38.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1370.47ms. Allocated memory is still 81.8MB. Free memory was 37.9MB in the beginning and 44.5MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.80ms. Allocated memory is still 81.8MB. Free memory is still 44.5MB. There was no memory consumed. 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 - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1580] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_multiply_04_bad() [L1552] int data; [L1553] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1570] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1572] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1572]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:39:47,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e27b64-7f93-4506-8f29-c5b43955277d/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 Result: UNKNOWN: Overapproximated counterexample