./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 --- 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 18:25:27,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:25:27,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:25:27,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:25:27,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:25:27,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:25:27,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:25:27,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:25:27,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:25:27,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:25:27,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:25:27,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:25:27,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:25:27,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:25:27,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:25:27,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:25:27,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:25:27,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:25:27,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:25:27,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:25:27,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:25:27,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:25:27,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:25:27,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:25:27,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:25:27,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:25:27,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:25:27,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:25:27,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:25:27,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:25:27,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:25:27,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:25:27,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:25:27,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:25:27,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:25:27,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:25:27,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:25:27,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:25:27,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:25:27,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:25:27,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:25:27,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 18:25:27,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:25:27,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:25:27,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:25:27,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:25:27,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:25:27,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:25:27,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:25:27,403 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:25:27,403 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:25:27,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:25:27,405 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:25:27,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:25:27,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:25:27,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:25:27,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:25:27,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:25:27,406 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:25:27,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:25:27,406 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:25:27,407 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:25:27,407 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:25:27,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:25:27,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:25:27,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:25:27,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:25:27,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:25:27,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:25:27,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:25:27,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:25:27,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:25:27,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:25:27,410 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:25:27,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:25:27,411 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_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 [2022-11-25 18:25:27,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:25:27,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:25:27,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:25:27,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:25:27,752 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:25:27,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-11-25 18:25:30,906 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:25:31,350 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:25:31,350 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-11-25 18:25:31,377 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data/27a55a39e/914212f5c6aa4412a2c74e42a5c29e19/FLAG9dba97d61 [2022-11-25 18:25:31,399 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data/27a55a39e/914212f5c6aa4412a2c74e42a5c29e19 [2022-11-25 18:25:31,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:25:31,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:25:31,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:25:31,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:25:31,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:25:31,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:31" (1/1) ... [2022-11-25 18:25:31,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fe270b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:31, skipping insertion in model container [2022-11-25 18:25:31,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:31" (1/1) ... [2022-11-25 18:25:31,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:25:31,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:25:31,927 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:25:32,397 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:25:32,406 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:32,410 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:32,422 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:32,423 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:32,460 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:25:32,469 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:25:32,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:25:32,500 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:25:32,534 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:25:32,616 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:25:32,622 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:32,623 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:32,628 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:32,629 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:32,642 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:25:32,643 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:25:32,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:25:32,817 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:25:32,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32 WrapperNode [2022-11-25 18:25:32,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:25:32,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:25:32,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:25:32,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:25:32,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,874 INFO L138 Inliner]: procedures = 504, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2022-11-25 18:25:32,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:25:32,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:25:32,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:25:32,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:25:32,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:25:32,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:25:32,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:25:32,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:25:32,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (1/1) ... [2022-11-25 18:25:32,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:25:32,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:25:32,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:25:32,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:25:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 18:25:32,973 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 18:25:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 18:25:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:25:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 18:25:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:25:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:25:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:25:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:25:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 18:25:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:25:33,128 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:25:33,130 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:25:33,343 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:25:33,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:25:33,350 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:25:33,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:33 BoogieIcfgContainer [2022-11-25 18:25:33,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:25:33,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:25:33,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:25:33,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:25:33,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:25:31" (1/3) ... [2022-11-25 18:25:33,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac5ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:33, skipping insertion in model container [2022-11-25 18:25:33,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:32" (2/3) ... [2022-11-25 18:25:33,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac5ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:33, skipping insertion in model container [2022-11-25 18:25:33,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:33" (3/3) ... [2022-11-25 18:25:33,363 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-11-25 18:25:33,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:25:33,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 18:25:33,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:25:33,446 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;@7b4f3df3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:25:33,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 18:25:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 18:25:33,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:25:33,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:33,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:33,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:25:33,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:33,469 INFO L85 PathProgramCache]: Analyzing trace with hash 972561618, now seen corresponding path program 1 times [2022-11-25 18:25:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:33,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819502740] [2022-11-25 18:25:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 18:25:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:34,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:34,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:25:34,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819502740] [2022-11-25 18:25:34,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819502740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:34,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:34,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:25:34,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474973730] [2022-11-25 18:25:34,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:34,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:25:34,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:25:34,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:25:34,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:25:34,207 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:25:34,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:34,280 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-25 18:25:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:25:34,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 18:25:34,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:34,299 INFO L225 Difference]: With dead ends: 26 [2022-11-25 18:25:34,300 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 18:25:34,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:25:34,315 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:34,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 58 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:25:34,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 18:25:34,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 18:25:34,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:25:34,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-25 18:25:34,358 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-25 18:25:34,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:34,359 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-25 18:25:34,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:25:34,360 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-25 18:25:34,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 18:25:34,362 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:34,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:34,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:25:34,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:25:34,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:34,364 INFO L85 PathProgramCache]: Analyzing trace with hash 84639140, now seen corresponding path program 1 times [2022-11-25 18:25:34,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:25:34,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481849123] [2022-11-25 18:25:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:34,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:25:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:25:34,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:25:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:25:34,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 18:25:34,432 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:25:34,434 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 18:25:34,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 18:25:34,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:25:34,441 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 18:25:34,445 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:25:34,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:25:34 BoogieIcfgContainer [2022-11-25 18:25:34,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:25:34,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:25:34,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:25:34,489 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:25:34,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:33" (3/4) ... [2022-11-25 18:25:34,493 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:25:34,493 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:25:34,494 INFO L158 Benchmark]: Toolchain (without parser) took 3087.99ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 114.5MB in the beginning and 113.3MB in the end (delta: 1.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,495 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 95.5MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:25:34,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1408.28ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 114.5MB in the beginning and 177.3MB in the end (delta: -62.8MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.28ms. Allocated memory is still 213.9MB. Free memory was 177.3MB in the beginning and 174.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,497 INFO L158 Benchmark]: Boogie Preprocessor took 27.38ms. Allocated memory is still 213.9MB. Free memory was 174.1MB in the beginning and 172.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,498 INFO L158 Benchmark]: RCFGBuilder took 449.25ms. Allocated memory is still 213.9MB. Free memory was 172.0MB in the beginning and 158.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,498 INFO L158 Benchmark]: TraceAbstraction took 1132.25ms. Allocated memory is still 213.9MB. Free memory was 158.4MB in the beginning and 114.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 18:25:34,499 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 213.9MB. Free memory was 114.4MB in the beginning and 113.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:25:34,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 95.5MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1408.28ms. Allocated memory was 151.0MB in the beginning and 213.9MB in the end (delta: 62.9MB). Free memory was 114.5MB in the beginning and 177.3MB in the end (delta: -62.8MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.28ms. Allocated memory is still 213.9MB. Free memory was 177.3MB in the beginning and 174.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.38ms. Allocated memory is still 213.9MB. Free memory was 174.1MB in the beginning and 172.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.25ms. Allocated memory is still 213.9MB. Free memory was 172.0MB in the beginning and 158.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1132.25ms. Allocated memory is still 213.9MB. Free memory was 158.4MB in the beginning and 114.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 213.9MB. Free memory was 114.4MB in the beginning and 113.3MB 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483652, argc=2147483652, argv={2147483649:2147483654}, argv={2147483649:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_54b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_54c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_postinc_54d_badSink(data) [L1587] CALL CWE190_Integer_Overflow__int_fgets_postinc_54e_badSink(data) [L1592] data++ VAL [\old(data)=2147483647, data=2147483647, data++=2147483647, 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: 1592]: 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, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 24 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 18:25:34,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 --- 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 18:25:37,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:25:37,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:25:37,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:25:37,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:25:37,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:25:37,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:25:37,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:25:37,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:25:37,086 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:25:37,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:25:37,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:25:37,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:25:37,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:25:37,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:25:37,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:25:37,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:25:37,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:25:37,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:25:37,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:25:37,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:25:37,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:25:37,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:25:37,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:25:37,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:25:37,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:25:37,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:25:37,125 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:25:37,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:25:37,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:25:37,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:25:37,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:25:37,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:25:37,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:25:37,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:25:37,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:25:37,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:25:37,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:25:37,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:25:37,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:25:37,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:25:37,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 18:25:37,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:25:37,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:25:37,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:25:37,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:25:37,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:25:37,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:25:37,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:25:37,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:25:37,218 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:25:37,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:25:37,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:25:37,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:25:37,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:25:37,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:25:37,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:25:37,221 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:25:37,222 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 18:25:37,222 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 18:25:37,222 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 18:25:37,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:25:37,222 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:25:37,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:25:37,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:25:37,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:25:37,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:25:37,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:25:37,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:25:37,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:25:37,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:25:37,224 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 18:25:37,225 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 18:25:37,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:25:37,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:25:37,225 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:25:37,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:25:37,226 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 18:25:37,226 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_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 [2022-11-25 18:25:37,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:25:37,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:25:37,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:25:37,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:25:37,670 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:25:37,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-11-25 18:25:41,001 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:25:41,412 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:25:41,413 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-11-25 18:25:41,441 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data/054ccace2/2240b8ad3369468a875b17b1c39f6aa3/FLAG4d7500894 [2022-11-25 18:25:41,473 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/data/054ccace2/2240b8ad3369468a875b17b1c39f6aa3 [2022-11-25 18:25:41,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:25:41,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:25:41,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:25:41,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:25:41,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:25:41,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:41" (1/1) ... [2022-11-25 18:25:41,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f55dde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:41, skipping insertion in model container [2022-11-25 18:25:41,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:41" (1/1) ... [2022-11-25 18:25:41,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:25:41,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:25:42,142 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:25:42,563 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:25:42,571 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:42,572 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:42,583 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:42,584 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:42,624 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:25:42,627 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:25:42,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:25:42,648 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:25:42,667 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 18:25:42,741 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 18:25:42,743 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:42,744 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 18:25:42,746 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:42,747 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 18:25:42,758 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 18:25:42,763 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 18:25:42,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:25:42,923 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:25:42,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42 WrapperNode [2022-11-25 18:25:42,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:25:42,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:25:42,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:25:42,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:25:42,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:42,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,021 INFO L138 Inliner]: procedures = 509, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2022-11-25 18:25:43,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:25:43,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:25:43,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:25:43,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:25:43,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,054 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:25:43,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:25:43,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:25:43,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:25:43,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (1/1) ... [2022-11-25 18:25:43,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:25:43,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:25:43,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:25:43,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:25:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 18:25:43,138 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 18:25:43,139 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 18:25:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:25:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 18:25:43,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:25:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:25:43,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:25:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:25:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 18:25:43,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 18:25:43,304 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:25:43,306 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:25:43,474 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:25:43,480 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:25:43,480 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:25:43,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:43 BoogieIcfgContainer [2022-11-25 18:25:43,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:25:43,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:25:43,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:25:43,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:25:43,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:25:41" (1/3) ... [2022-11-25 18:25:43,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e1703f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:43, skipping insertion in model container [2022-11-25 18:25:43,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:42" (2/3) ... [2022-11-25 18:25:43,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e1703f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:43, skipping insertion in model container [2022-11-25 18:25:43,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:43" (3/3) ... [2022-11-25 18:25:43,492 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-11-25 18:25:43,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:25:43,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 18:25:43,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:25:43,588 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;@7cc5b929, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:25:43,589 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 18:25:43,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 18:25:43,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 18:25:43,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:43,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:43,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:25:43,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash 972561618, now seen corresponding path program 1 times [2022-11-25 18:25:43,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:25:43,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761016620] [2022-11-25 18:25:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:43,624 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 18:25:43,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:25:43,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 18:25:43,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 18:25:43,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:25:43,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 18:25:43,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 18:25:43,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:25:43,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 18:25:43,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 18:25:43,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761016620] [2022-11-25 18:25:43,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761016620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:25:43,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:25:43,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:25:43,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397528750] [2022-11-25 18:25:43,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:25:43,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:25:43,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 18:25:43,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:25:43,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:25:43,893 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:25:43,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:43,914 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-25 18:25:43,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:25:43,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 18:25:43,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:25:43,923 INFO L225 Difference]: With dead ends: 26 [2022-11-25 18:25:43,924 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 18:25:43,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:25:43,930 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:25:43,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 18:25:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 18:25:43,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 18:25:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 18:25:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-25 18:25:43,967 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-25 18:25:43,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:25:43,969 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-25 18:25:43,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 18:25:43,970 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-25 18:25:43,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 18:25:43,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:25:43,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:25:43,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 18:25:44,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 18:25:44,187 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 18:25:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:25:44,189 INFO L85 PathProgramCache]: Analyzing trace with hash 84639140, now seen corresponding path program 1 times [2022-11-25 18:25:44,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 18:25:44,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915143430] [2022-11-25 18:25:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:25:44,192 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 18:25:44,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 18:25:44,193 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 18:25:44,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 (3)] Waiting until timeout for monitored process [2022-11-25 18:25:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:25:44,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 18:25:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 18:25:44,461 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 18:25:44,461 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 18:25:44,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 18:25:44,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 18:25:44,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 (3)] Forceful destruction successful, exit code 0 [2022-11-25 18:25:44,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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 18:25:44,669 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 18:25:44,672 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:25:44,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:25:44 BoogieIcfgContainer [2022-11-25 18:25:44,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:25:44,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:25:44,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:25:44,732 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:25:44,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:43" (3/4) ... [2022-11-25 18:25:44,737 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 18:25:44,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:25:44,739 INFO L158 Benchmark]: Toolchain (without parser) took 3257.69ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 44.2MB in the beginning and 81.0MB in the end (delta: -36.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2022-11-25 18:25:44,746 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 90.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:25:44,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1438.57ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 43.9MB in the beginning and 96.6MB in the end (delta: -52.7MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-11-25 18:25:44,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.53ms. Allocated memory is still 130.0MB. Free memory was 96.6MB in the beginning and 93.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:25:44,749 INFO L158 Benchmark]: Boogie Preprocessor took 38.04ms. Allocated memory is still 130.0MB. Free memory was 93.0MB in the beginning and 90.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:25:44,749 INFO L158 Benchmark]: RCFGBuilder took 421.51ms. Allocated memory is still 130.0MB. Free memory was 90.9MB in the beginning and 77.1MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 18:25:44,750 INFO L158 Benchmark]: TraceAbstraction took 1243.18ms. Allocated memory is still 130.0MB. Free memory was 76.2MB in the beginning and 81.5MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:25:44,753 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 130.0MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:25:44,758 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 90.2MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1438.57ms. Allocated memory was 90.2MB in the beginning and 130.0MB in the end (delta: 39.8MB). Free memory was 43.9MB in the beginning and 96.6MB in the end (delta: -52.7MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.53ms. Allocated memory is still 130.0MB. Free memory was 96.6MB in the beginning and 93.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.04ms. Allocated memory is still 130.0MB. Free memory was 93.0MB in the beginning and 90.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.51ms. Allocated memory is still 130.0MB. Free memory was 90.9MB in the beginning and 77.1MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.18ms. Allocated memory is still 130.0MB. Free memory was 76.2MB in the beginning and 81.5MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.51ms. Allocated memory is still 130.0MB. Free memory is still 81.0MB. 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_54b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_54c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_postinc_54d_badSink(data) [L1587] CALL CWE190_Integer_Overflow__int_fgets_postinc_54e_badSink(data) [L1592] data++ VAL [\old(data)=2147483647, data=2147483647, data++=2147483647, 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: 1592]: 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, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 18:25:44,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e7b43c6-f511-4b76-841a-48961f4dfd3c/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