./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a --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 addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 --- 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-b5237d8 [2022-11-21 17:00:36,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:00:36,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:00:36,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:00:36,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:00:36,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:00:36,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:00:36,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:00:36,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:00:36,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:00:36,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:00:36,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:00:36,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:00:36,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:00:36,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:00:36,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:00:36,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:00:36,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:00:36,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:00:36,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:00:36,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:00:36,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:00:36,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:00:36,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:00:36,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:00:36,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:00:36,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:00:36,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:00:36,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:00:36,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:00:36,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:00:36,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:00:36,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:00:36,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:00:36,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:00:36,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:00:36,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:00:36,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:00:36,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:00:36,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:00:36,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:00:36,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 17:00:37,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:00:37,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:00:37,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:00:37,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:00:37,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:00:37,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:00:37,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:00:37,058 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:00:37,058 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:00:37,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:00:37,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:00:37,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:00:37,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:00:37,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:00:37,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:00:37,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:00:37,060 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:00:37,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:00:37,063 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:00:37,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:00:37,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:00:37,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:00:37,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:00:37,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:00:37,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:00:37,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:00:37,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:00:37,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:00:37,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:00:37,066 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:00:37,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:00:37,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:00:37,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 [2022-11-21 17:00:37,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:00:37,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:00:37,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:00:37,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:00:37,386 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:00:37,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2022-11-21 17:00:40,491 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:00:40,910 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:00:40,911 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2022-11-21 17:00:40,940 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data/cd741f021/70a44e6a1b73483fa1d5b9cc57c5d447/FLAG2a07b84d2 [2022-11-21 17:00:40,955 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data/cd741f021/70a44e6a1b73483fa1d5b9cc57c5d447 [2022-11-21 17:00:40,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:00:40,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:00:40,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:00:40,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:00:40,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:00:40,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:00:40" (1/1) ... [2022-11-21 17:00:40,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586fa4f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:40, skipping insertion in model container [2022-11-21 17:00:40,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:00:40" (1/1) ... [2022-11-21 17:00:40,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:00:41,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:00:41,422 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:00:41,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:00:41,950 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:00:41,972 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:00:42,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:00:42,206 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:00:42,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42 WrapperNode [2022-11-21 17:00:42,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:00:42,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:00:42,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:00:42,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:00:42,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,304 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 60 [2022-11-21 17:00:42,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:00:42,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:00:42,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:00:42,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:00:42,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,360 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:00:42,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:00:42,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:00:42,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:00:42,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (1/1) ... [2022-11-21 17:00:42,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:00:42,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:00:42,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:00:42,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:00:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 17:00:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:00:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:00:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:00:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 17:00:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:00:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:00:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:00:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:00:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:00:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:00:42,617 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:00:42,619 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:00:42,746 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:00:42,753 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:00:42,753 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:00:42,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:42 BoogieIcfgContainer [2022-11-21 17:00:42,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:00:42,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:00:42,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:00:42,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:00:42,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:00:40" (1/3) ... [2022-11-21 17:00:42,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ecdb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:00:42, skipping insertion in model container [2022-11-21 17:00:42,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:42" (2/3) ... [2022-11-21 17:00:42,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ecdb6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:00:42, skipping insertion in model container [2022-11-21 17:00:42,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:42" (3/3) ... [2022-11-21 17:00:42,769 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2022-11-21 17:00:42,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:00:42,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 17:00:42,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:00:42,874 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;@4a1ab483, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:00:42,875 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 17:00:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-11-21 17:00:42,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 17:00:42,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:42,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:42,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:00:42,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-11-21 17:00:42,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:42,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213528936] [2022-11-21 17:00:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:42,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:00:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:43,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:00:43,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:43,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213528936] [2022-11-21 17:00:43,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213528936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:43,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:43,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:00:43,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906194888] [2022-11-21 17:00:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:43,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:00:43,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:43,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:00:43,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:00:43,523 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-11-21 17:00:43,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:43,570 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-11-21 17:00:43,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:00:43,573 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 [2022-11-21 17:00:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:43,580 INFO L225 Difference]: With dead ends: 24 [2022-11-21 17:00:43,581 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 17:00:43,584 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 [2022-11-21 17:00:43,587 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 14 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 54 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 [2022-11-21 17:00:43,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 54 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:00:43,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 17:00:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-21 17:00:43,625 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) [2022-11-21 17:00:43,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-21 17:00:43,627 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-21 17:00:43,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:43,629 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-21 17:00:43,629 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) [2022-11-21 17:00:43,630 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-21 17:00:43,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:00:43,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:43,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:43,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:00:43,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:00:43,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:43,633 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-11-21 17:00:43,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:43,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468953607] [2022-11-21 17:00:43,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:43,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:00:43,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:00:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:00:43,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:00:43,706 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:00:43,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-21 17:00:43,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-21 17:00:43,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:00:43,715 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 17:00:43,720 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:00:43,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:00:43 BoogieIcfgContainer [2022-11-21 17:00:43,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:00:43,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:00:43,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:00:43,772 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:00:43,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:42" (3/4) ... [2022-11-21 17:00:43,776 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:00:43,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:00:43,777 INFO L158 Benchmark]: Toolchain (without parser) took 2818.24ms. Allocated memory is still 176.2MB. Free memory was 144.4MB in the beginning and 77.6MB in the end (delta: 66.8MB). Peak memory consumption was 65.8MB. Max. memory is 16.1GB. [2022-11-21 17:00:43,778 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 77.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:00:43,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1256.80ms. Allocated memory is still 176.2MB. Free memory was 144.4MB in the beginning and 137.3MB in the end (delta: 7.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-21 17:00:43,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.26ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 134.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:00:43,780 INFO L158 Benchmark]: Boogie Preprocessor took 56.94ms. Allocated memory is still 176.2MB. Free memory was 134.2MB in the beginning and 133.3MB in the end (delta: 958.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:00:43,783 INFO L158 Benchmark]: RCFGBuilder took 390.66ms. Allocated memory is still 176.2MB. Free memory was 133.3MB in the beginning and 119.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:00:43,783 INFO L158 Benchmark]: TraceAbstraction took 1013.40ms. Allocated memory is still 176.2MB. Free memory was 118.6MB in the beginning and 77.6MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-21 17:00:43,784 INFO L158 Benchmark]: Witness Printer took 5.08ms. Allocated memory is still 176.2MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:00:43,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 77.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1256.80ms. Allocated memory is still 176.2MB. Free memory was 144.4MB in the beginning and 137.3MB in the end (delta: 7.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.26ms. Allocated memory is still 176.2MB. Free memory was 137.3MB in the beginning and 134.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.94ms. Allocated memory is still 176.2MB. Free memory was 134.2MB in the beginning and 133.3MB in the end (delta: 958.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 390.66ms. Allocated memory is still 176.2MB. Free memory was 133.3MB in the beginning and 119.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1013.40ms. Allocated memory is still 176.2MB. Free memory was 118.6MB in the beginning and 77.6MB in the end (delta: 41.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 5.08ms. Allocated memory is still 176.2MB. Free memory is still 77.6MB. 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [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 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) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741828:1073741831}, argv={1073741828:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE191_Integer_Underflow__int_fgets_postdec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_postdec_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CALL funcPtr(data) [L1578] data-- VAL [\old(data)=-2147483648, data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1578]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 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=24occurred 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, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 [2022-11-21 17:00:43,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a --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 addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 --- 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-b5237d8 [2022-11-21 17:00:46,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:00:46,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:00:46,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:00:46,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:00:46,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:00:46,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:00:46,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:00:46,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:00:46,438 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:00:46,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:00:46,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:00:46,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:00:46,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:00:46,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:00:46,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:00:46,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:00:46,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:00:46,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:00:46,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:00:46,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:00:46,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:00:46,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:00:46,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:00:46,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:00:46,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:00:46,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:00:46,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:00:46,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:00:46,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:00:46,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:00:46,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:00:46,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:00:46,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:00:46,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:00:46,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:00:46,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:00:46,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:00:46,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:00:46,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:00:46,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:00:46,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-21 17:00:46,536 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:00:46,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:00:46,538 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:00:46,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:00:46,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:00:46,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:00:46,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:00:46,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:00:46,541 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:00:46,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:00:46,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:00:46,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:00:46,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:00:46,542 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:00:46,543 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:00:46,543 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:00:46,543 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:00:46,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:00:46,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:00:46,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:00:46,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:00:46,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:00:46,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:00:46,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:00:46,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:00:46,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:00:46,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:00:46,546 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:00:46,546 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:00:46,546 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:00:46,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:00:46,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:00:46,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:00:46,547 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 [2022-11-21 17:00:46,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:00:46,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:00:46,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:00:46,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:00:46,962 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:00:46,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2022-11-21 17:00:50,195 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:00:50,629 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:00:50,629 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2022-11-21 17:00:50,652 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data/d4dab11b0/9125cbf8bcb54f03b28b4b2fd8fd41a5/FLAGbcd6a1a43 [2022-11-21 17:00:50,673 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/data/d4dab11b0/9125cbf8bcb54f03b28b4b2fd8fd41a5 [2022-11-21 17:00:50,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:00:50,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:00:50,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:00:50,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:00:50,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:00:50,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:00:50" (1/1) ... [2022-11-21 17:00:50,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400ebd7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:50, skipping insertion in model container [2022-11-21 17:00:50,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:00:50" (1/1) ... [2022-11-21 17:00:50,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:00:50,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:00:51,228 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:00:51,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:00:51,913 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:00:51,935 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:00:52,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:00:52,189 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:00:52,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52 WrapperNode [2022-11-21 17:00:52,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:00:52,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:00:52,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:00:52,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:00:52,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,255 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2022-11-21 17:00:52,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:00:52,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:00:52,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:00:52,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:00:52,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,271 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:00:52,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:00:52,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:00:52,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:00:52,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (1/1) ... [2022-11-21 17:00:52,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:00:52,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:00:52,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:00:52,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:00:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 17:00:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:00:52,384 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:00:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:00:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 17:00:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:00:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:00:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:00:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:00:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:00:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 17:00:52,606 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:00:52,608 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:00:52,817 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:00:52,823 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:00:52,831 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:00:52,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:52 BoogieIcfgContainer [2022-11-21 17:00:52,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:00:52,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:00:52,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:00:52,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:00:52,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:00:50" (1/3) ... [2022-11-21 17:00:52,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bcf6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:00:52, skipping insertion in model container [2022-11-21 17:00:52,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:00:52" (2/3) ... [2022-11-21 17:00:52,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bcf6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:00:52, skipping insertion in model container [2022-11-21 17:00:52,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:52" (3/3) ... [2022-11-21 17:00:52,847 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2022-11-21 17:00:52,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:00:52,868 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-21 17:00:52,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bcf6e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:00:52, skipping insertion in model container [2022-11-21 17:00:52,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:00:52,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:00:52,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:00:52,871 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:00:52,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:00:52" (3/3) ... [2022-11-21 17:00:52,875 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:00:52,883 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 17:00:52,889 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-21 17:00:52,889 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-21 17:00:52,890 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 17:00:52,890 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:00:52,943 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:00:52,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:00:52,948 INFO L158 Benchmark]: Toolchain (without parser) took 2268.67ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 62.3MB in the beginning and 71.1MB in the end (delta: -8.9MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-11-21 17:00:52,952 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 82.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:00:52,953 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1511.94ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 62.0MB in the beginning and 96.0MB in the end (delta: -33.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-11-21 17:00:52,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.17ms. Allocated memory is still 130.0MB. Free memory was 96.0MB in the beginning and 92.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:00:52,953 INFO L158 Benchmark]: Boogie Preprocessor took 34.22ms. Allocated memory is still 130.0MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:00:52,954 INFO L158 Benchmark]: RCFGBuilder took 542.35ms. Allocated memory is still 130.0MB. Free memory was 90.6MB in the beginning and 76.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:00:52,954 INFO L158 Benchmark]: TraceAbstraction took 33.70ms. Allocated memory is still 130.0MB. Free memory was 75.9MB in the beginning and 73.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:00:52,955 INFO L158 Benchmark]: Witness Printer took 74.29ms. Allocated memory is still 130.0MB. Free memory was 73.6MB in the beginning and 71.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:00:52,957 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 88.1MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 82.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1511.94ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 62.0MB in the beginning and 96.0MB in the end (delta: -33.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.17ms. Allocated memory is still 130.0MB. Free memory was 96.0MB in the beginning and 92.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.22ms. Allocated memory is still 130.0MB. Free memory was 92.7MB in the beginning and 90.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.35ms. Allocated memory is still 130.0MB. Free memory was 90.6MB in the beginning and 76.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 33.70ms. Allocated memory is still 130.0MB. Free memory was 75.9MB in the beginning and 73.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 74.29ms. Allocated memory is still 130.0MB. Free memory was 73.6MB in the beginning and 71.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-21 17:00:52,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98c89256-78a1-4c8f-ac0a-7f6c4b2967e4/bin/uautomizer-vX5HgA9Q3a/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: TRUE