./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:07:38,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:07:38,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:07:38,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:07:38,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:07:38,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:07:38,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:07:38,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:07:38,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:07:38,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:07:38,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:07:38,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:07:38,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:07:38,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:07:38,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:07:38,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:07:38,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:07:38,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:07:38,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:07:38,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:07:38,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:07:38,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:07:38,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:07:38,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:07:38,418 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:07:38,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:07:38,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:07:38,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:07:38,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:07:38,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:07:38,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:07:38,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:07:38,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:07:38,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:07:38,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:07:38,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:07:38,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:07:38,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:07:38,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:07:38,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:07:38,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:07:38,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:07:38,483 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:07:38,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:07:38,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:07:38,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:07:38,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:07:38,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:07:38,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:07:38,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:07:38,486 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:07:38,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:07:38,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:07:38,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:07:38,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:07:38,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:07:38,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:07:38,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:07:38,488 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:07:38,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:07:38,489 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:07:38,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:07:38,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:07:38,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:07:38,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:07:38,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:38,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:07:38,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:07:38,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:07:38,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:07:38,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:07:38,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:07:38,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:07:38,492 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:07:38,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:07:38,492 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_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2022-11-25 17:07:38,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:07:38,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:07:38,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:07:38,839 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:07:38,840 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:07:38,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 17:07:42,019 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:07:42,463 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:07:42,467 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 17:07:42,500 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data/7b88dccf3/f2b219eba60f480bb441229e9ac32486/FLAG538587602 [2022-11-25 17:07:42,524 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data/7b88dccf3/f2b219eba60f480bb441229e9ac32486 [2022-11-25 17:07:42,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:07:42,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:07:42,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:42,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:07:42,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:07:42,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:42" (1/1) ... [2022-11-25 17:07:42,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de701cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:42, skipping insertion in model container [2022-11-25 17:07:42,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:42" (1/1) ... [2022-11-25 17:07:42,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:07:42,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:07:43,059 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:07:43,625 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:07:43,638 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:43,642 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:43,654 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:43,656 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:43,696 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:07:43,706 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:07:43,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:43,730 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:07:43,769 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:07:43,860 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:07:43,866 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:43,867 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:43,874 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:43,875 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:43,892 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:07:43,894 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:07:43,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:44,028 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:07:44,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44 WrapperNode [2022-11-25 17:07:44,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:44,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:44,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:07:44,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:07:44,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,064 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,102 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-11-25 17:07:44,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:44,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:07:44,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:07:44,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:07:44,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,134 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:07:44,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:07:44,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:07:44,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:07:44,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (1/1) ... [2022-11-25 17:07:44,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:44,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:44,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:07:44,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:07:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:07:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:07:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:07:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:07:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:07:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:07:44,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:07:44,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:07:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:07:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:07:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:07:44,416 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:07:44,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:07:44,615 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:07:44,622 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:07:44,622 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:07:44,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:44 BoogieIcfgContainer [2022-11-25 17:07:44,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:07:44,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:07:44,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:07:44,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:07:44,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:07:42" (1/3) ... [2022-11-25 17:07:44,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aa4cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:44, skipping insertion in model container [2022-11-25 17:07:44,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:44" (2/3) ... [2022-11-25 17:07:44,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78aa4cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:44, skipping insertion in model container [2022-11-25 17:07:44,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:44" (3/3) ... [2022-11-25 17:07:44,633 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 17:07:44,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:07:44,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:07:44,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:07:44,716 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;@35c7a623, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:07:44,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:07:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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) [2022-11-25 17:07:44,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:07:44,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:07:44,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:44,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:07:44,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:44,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1923423969, now seen corresponding path program 1 times [2022-11-25 17:07:44,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:07:44,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321787736] [2022-11-25 17:07:44,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:44,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:07:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:44,945 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:45,022 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:07:45,026 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:07:45,027 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:07:45,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:07:45,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:07:45,043 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:07:45,048 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:07:45,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:07:45 BoogieIcfgContainer [2022-11-25 17:07:45,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:07:45,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:07:45,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:07:45,096 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:07:45,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:44" (3/4) ... [2022-11-25 17:07:45,100 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:07:45,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:07:45,101 INFO L158 Benchmark]: Toolchain (without parser) took 2568.49ms. Allocated memory is still 153.1MB. Free memory was 120.0MB in the beginning and 108.6MB in the end (delta: 11.4MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-11-25 17:07:45,101 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 80.5MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:45,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1493.67ms. Allocated memory is still 153.1MB. Free memory was 119.5MB in the beginning and 103.6MB in the end (delta: 15.8MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-11-25 17:07:45,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.07ms. Allocated memory is still 153.1MB. Free memory was 103.6MB in the beginning and 101.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:07:45,104 INFO L158 Benchmark]: Boogie Preprocessor took 34.14ms. Allocated memory is still 153.1MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:07:45,104 INFO L158 Benchmark]: RCFGBuilder took 485.29ms. Allocated memory is still 153.1MB. Free memory was 99.5MB in the beginning and 86.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:07:45,105 INFO L158 Benchmark]: TraceAbstraction took 467.85ms. Allocated memory is still 153.1MB. Free memory was 85.6MB in the beginning and 109.6MB in the end (delta: -24.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:45,105 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 153.1MB. Free memory was 109.6MB in the beginning and 108.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:45,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory was 80.6MB in the beginning and 80.5MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1493.67ms. Allocated memory is still 153.1MB. Free memory was 119.5MB in the beginning and 103.6MB in the end (delta: 15.8MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.07ms. Allocated memory is still 153.1MB. Free memory was 103.6MB in the beginning and 101.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.14ms. Allocated memory is still 153.1MB. Free memory was 101.1MB in the beginning and 99.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 485.29ms. Allocated memory is still 153.1MB. Free memory was 99.5MB in the beginning and 86.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 467.85ms. Allocated memory is still 153.1MB. Free memory was 85.6MB in the beginning and 109.6MB in the end (delta: -24.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 153.1MB. Free memory was 109.6MB in the beginning and 108.6MB 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741825:1073741830}, argv={1073741825:1073741830}, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:07:45,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:07:47,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:07:47,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:07:47,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:07:47,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:07:47,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:07:47,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:07:47,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:07:47,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:07:47,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:07:47,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:07:47,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:07:47,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:07:47,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:07:47,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:07:47,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:07:47,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:07:47,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:07:47,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:07:47,929 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:07:47,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:07:47,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:07:47,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:07:47,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:07:47,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:07:47,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:07:47,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:07:47,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:07:47,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:07:47,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:07:47,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:07:47,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:07:47,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:07:47,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:07:47,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:07:47,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:07:47,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:07:47,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:07:47,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:07:47,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:07:47,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:07:47,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 17:07:47,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:07:47,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:07:47,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:07:48,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:07:48,001 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:07:48,001 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:07:48,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:07:48,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:07:48,002 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:07:48,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:07:48,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:07:48,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:07:48,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:07:48,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:07:48,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:07:48,004 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:07:48,005 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:07:48,005 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:07:48,005 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:07:48,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:07:48,006 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:07:48,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:07:48,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:07:48,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:07:48,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:07:48,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:48,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:07:48,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:07:48,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:07:48,008 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:07:48,009 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:07:48,009 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:07:48,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:07:48,009 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:07:48,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:07:48,010 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:07:48,010 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_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2022-11-25 17:07:48,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:07:48,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:07:48,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:07:48,487 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:07:48,490 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:07:48,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 17:07:51,965 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:07:52,359 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:07:52,360 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 17:07:52,383 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data/93ad39f6a/34b0d0c277ae45979198c44c60c600ad/FLAG9a54ff9af [2022-11-25 17:07:52,408 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/data/93ad39f6a/34b0d0c277ae45979198c44c60c600ad [2022-11-25 17:07:52,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:07:52,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:07:52,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:52,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:07:52,427 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:07:52,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:52" (1/1) ... [2022-11-25 17:07:52,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f4a8a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:52, skipping insertion in model container [2022-11-25 17:07:52,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:07:52" (1/1) ... [2022-11-25 17:07:52,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:07:52,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:07:52,936 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:07:53,514 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:07:53,521 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:53,523 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:53,525 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:53,526 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:53,550 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:07:53,553 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:07:53,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:53,574 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:07:53,596 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:07:53,663 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:07:53,664 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:53,666 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:07:53,668 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:53,669 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:07:53,673 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:07:53,675 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:07:53,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:07:53,849 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:07:53,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53 WrapperNode [2022-11-25 17:07:53,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:07:53,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:53,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:07:53,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:07:53,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:53,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:53,959 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-25 17:07:53,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:07:53,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:07:53,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:07:53,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:07:53,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:53,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:53,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:53,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:54,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:54,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:54,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:54,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:54,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:07:54,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:07:54,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:07:54,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:07:54,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (1/1) ... [2022-11-25 17:07:54,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:07:54,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:07:54,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:07:54,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:07:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:07:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:07:54,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:07:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:07:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:07:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:07:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:07:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:07:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:07:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:07:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 17:07:54,349 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:07:54,352 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:07:54,582 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:07:54,589 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:07:54,589 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:07:54,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:54 BoogieIcfgContainer [2022-11-25 17:07:54,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:07:54,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:07:54,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:07:54,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:07:54,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:07:52" (1/3) ... [2022-11-25 17:07:54,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b1f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:54, skipping insertion in model container [2022-11-25 17:07:54,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:07:53" (2/3) ... [2022-11-25 17:07:54,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@784b1f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:07:54, skipping insertion in model container [2022-11-25 17:07:54,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:54" (3/3) ... [2022-11-25 17:07:54,602 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2022-11-25 17:07:54,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:07:54,654 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:07:54,714 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:07:54,722 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;@227ee017, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:07:54,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:07:54,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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) [2022-11-25 17:07:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:07:54,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:07:54,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:07:54,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:07:54,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:07:54,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1923423969, now seen corresponding path program 1 times [2022-11-25 17:07:54,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:07:54,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823916485] [2022-11-25 17:07:54,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:07:54,774 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 [2022-11-25 17:07:54,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:07:54,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:07:54,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:07:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:55,040 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:07:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:07:55,124 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:07:55,129 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:07:55,131 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:07:55,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:07:55,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:07:55,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:07:55,353 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:07:55,362 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:07:55,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:07:55 BoogieIcfgContainer [2022-11-25 17:07:55,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:07:55,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:07:55,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:07:55,436 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:07:55,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:07:54" (3/4) ... [2022-11-25 17:07:55,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:07:55,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:07:55,445 INFO L158 Benchmark]: Toolchain (without parser) took 3029.74ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.7MB in the beginning and 63.3MB in the end (delta: -2.6MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-25 17:07:55,445 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 58.7MB. Free memory is still 37.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:55,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1431.12ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 36.3MB in the end (delta: 24.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2022-11-25 17:07:55,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.94ms. Allocated memory is still 83.9MB. Free memory was 36.3MB in the beginning and 57.9MB in the end (delta: -21.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-25 17:07:55,453 INFO L158 Benchmark]: Boogie Preprocessor took 80.63ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 55.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:07:55,455 INFO L158 Benchmark]: RCFGBuilder took 547.15ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 41.9MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:07:55,456 INFO L158 Benchmark]: TraceAbstraction took 837.68ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 63.7MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:55,457 INFO L158 Benchmark]: Witness Printer took 9.36ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 63.3MB in the end (delta: 396.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:07:55,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 58.7MB. Free memory is still 37.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1431.12ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 36.3MB in the end (delta: 24.2MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.94ms. Allocated memory is still 83.9MB. Free memory was 36.3MB in the beginning and 57.9MB in the end (delta: -21.6MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.63ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 55.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 547.15ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 41.9MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 837.68ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 63.7MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.36ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 63.3MB in the end (delta: 396.3kB). 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: 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: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:07:55,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50300aa0-194c-48d7-8959-ef525a055144/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample