./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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 a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 --- 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 17:14:19,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:14:19,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:14:19,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:14:19,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:14:19,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:14:19,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:14:19,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:14:19,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:14:19,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:14:19,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:14:19,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:14:19,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:14:19,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:14:19,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:14:19,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:14:19,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:14:19,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:14:19,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:14:19,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:14:19,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:14:19,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:14:19,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:14:19,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:14:19,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:14:19,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:14:19,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:14:19,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:14:19,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:14:19,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:14:19,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:14:19,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:14:19,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:14:19,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:14:19,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:14:19,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:14:19,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:14:19,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:14:19,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:14:19,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:14:19,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:14:19,851 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 17:14:19,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:14:19,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:14:19,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:14:19,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:14:19,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:14:19,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:14:19,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:14:19,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:14:19,895 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:14:19,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:14:19,896 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:14:19,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:14:19,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:14:19,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:14:19,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:14:19,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:14:19,898 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:14:19,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:14:19,898 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:14:19,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:14:19,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:14:19,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:14:19,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:14:19,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:14:19,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:14:19,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:14:19,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:14:19,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:14:19,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:14:19,902 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:14:19,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:14:19,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:14:19,903 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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 [2022-11-21 17:14:20,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:14:20,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:14:20,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:14:20,212 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:14:20,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:14:20,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-11-21 17:14:23,153 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:14:23,581 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:14:23,582 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-11-21 17:14:23,609 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data/d1277a1da/62b4864d771b41dab58a20fb856acd6f/FLAG7045e8953 [2022-11-21 17:14:23,624 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data/d1277a1da/62b4864d771b41dab58a20fb856acd6f [2022-11-21 17:14:23,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:14:23,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:14:23,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:14:23,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:14:23,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:14:23,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:14:23" (1/1) ... [2022-11-21 17:14:23,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345caa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:23, skipping insertion in model container [2022-11-21 17:14:23,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:14:23" (1/1) ... [2022-11-21 17:14:23,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:14:23,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:14:24,129 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:14:24,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:14:24,719 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:14:24,754 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:14:24,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:14:25,023 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:14:25,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25 WrapperNode [2022-11-21 17:14:25,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:14:25,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:14:25,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:14:25,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:14:25,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,115 INFO L138 Inliner]: procedures = 500, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-21 17:14:25,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:14:25,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:14:25,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:14:25,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:14:25,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,152 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:14:25,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:14:25,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:14:25,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:14:25,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (1/1) ... [2022-11-21 17:14:25,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:14:25,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:14:25,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:14:25,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:14:25,241 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 17:14:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:14:25,242 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:14:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:14:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 17:14:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:14:25,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:14:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:14:25,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:14:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:14:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:14:25,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:14:25,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:14:25,432 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:14:25,434 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:14:25,722 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:14:25,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:14:25,728 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:14:25,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:25 BoogieIcfgContainer [2022-11-21 17:14:25,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:14:25,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:14:25,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:14:25,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:14:25,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:14:23" (1/3) ... [2022-11-21 17:14:25,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc9f7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:14:25, skipping insertion in model container [2022-11-21 17:14:25,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:25" (2/3) ... [2022-11-21 17:14:25,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc9f7f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:14:25, skipping insertion in model container [2022-11-21 17:14:25,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:25" (3/3) ... [2022-11-21 17:14:25,739 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-11-21 17:14:25,758 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:14:25,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 17:14:25,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:14:25,829 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;@7b1aea60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:14:25,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 17:14:25,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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 17:14:25,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:14:25,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:14:25,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:14:25,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:14:25,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:14:25,854 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-21 17:14:25,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:14:25,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970338564] [2022-11-21 17:14:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:14:25,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:14:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:14:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:14:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:14:26,281 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 17:14:26,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:14:26,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970338564] [2022-11-21 17:14:26,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970338564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:14:26,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:14:26,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:14:26,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30821510] [2022-11-21 17:14:26,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:14:26,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:14:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:14:26,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:14:26,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:14:26,368 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:14:26,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:14:26,404 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-21 17:14:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:14:26,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-21 17:14:26,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:14:26,426 INFO L225 Difference]: With dead ends: 31 [2022-11-21 17:14:26,426 INFO L226 Difference]: Without dead ends: 15 [2022-11-21 17:14:26,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:14:26,435 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 9 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:14:26,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 51 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:14:26,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-21 17:14:26,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-21 17:14:26,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 17:14:26,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-21 17:14:26,474 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-21 17:14:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:14:26,476 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-21 17:14:26,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 17:14:26,476 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-21 17:14:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 17:14:26,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:14:26,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:14:26,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:14:26,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:14:26,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:14:26,481 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-11-21 17:14:26,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:14:26,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769569226] [2022-11-21 17:14:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:14:26,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:14:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:14:26,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:14:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:14:26,640 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:14:26,640 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:14:26,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-21 17:14:26,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-21 17:14:26,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:14:26,658 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 17:14:26,662 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:14:26,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:14:26 BoogieIcfgContainer [2022-11-21 17:14:26,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:14:26,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:14:26,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:14:26,699 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:14:26,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:25" (3/4) ... [2022-11-21 17:14:26,703 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:14:26,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:14:26,704 INFO L158 Benchmark]: Toolchain (without parser) took 3075.92ms. Allocated memory is still 205.5MB. Free memory was 167.4MB in the beginning and 129.9MB in the end (delta: 37.5MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2022-11-21 17:14:26,704 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:14:26,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1397.92ms. Allocated memory is still 205.5MB. Free memory was 166.8MB in the beginning and 105.4MB in the end (delta: 61.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-21 17:14:26,706 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.00ms. Allocated memory is still 205.5MB. Free memory was 105.4MB in the beginning and 102.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:14:26,706 INFO L158 Benchmark]: Boogie Preprocessor took 40.22ms. Allocated memory is still 205.5MB. Free memory was 102.5MB in the beginning and 100.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:14:26,707 INFO L158 Benchmark]: RCFGBuilder took 573.41ms. Allocated memory is still 205.5MB. Free memory was 100.5MB in the beginning and 166.7MB in the end (delta: -66.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:14:26,707 INFO L158 Benchmark]: TraceAbstraction took 965.81ms. Allocated memory is still 205.5MB. Free memory was 165.6MB in the beginning and 129.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-21 17:14:26,708 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 205.5MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:14:26,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1397.92ms. Allocated memory is still 205.5MB. Free memory was 166.8MB in the beginning and 105.4MB in the end (delta: 61.5MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.00ms. Allocated memory is still 205.5MB. Free memory was 105.4MB in the beginning and 102.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.22ms. Allocated memory is still 205.5MB. Free memory was 102.5MB in the beginning and 100.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.41ms. Allocated memory is still 205.5MB. Free memory was 100.5MB in the beginning and 166.7MB in the end (delta: -66.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 965.81ms. Allocated memory is still 205.5MB. Free memory was 165.6MB in the beginning and 129.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 205.5MB. Free memory is still 129.9MB. 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: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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] [L1582] 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) [L1582] RET printLine("Calling bad()...") VAL [\old(argc)=1073741831, argc=1073741831, argv={1073741828:1073741832}, argv={1073741828:1073741832}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] CALL CWE191_Integer_Underflow__int_fgets_multiply_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_multiply_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1572] COND TRUE data < 0 VAL [data=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={7:0}] [L1574] data * 2 VAL [data=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={7:0}] - UnprovableResult [Line: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 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, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 17:14:26,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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 a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 --- 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 17:14:29,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:14:29,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:14:29,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:14:29,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:14:29,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:14:29,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:14:29,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:14:29,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:14:29,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:14:29,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:14:29,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:14:29,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:14:29,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:14:29,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:14:29,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:14:29,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:14:29,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:14:29,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:14:29,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:14:29,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:14:29,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:14:29,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:14:29,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:14:29,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:14:29,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:14:29,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:14:29,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:14:29,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:14:29,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:14:29,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:14:29,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:14:29,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:14:29,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:14:29,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:14:29,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:14:29,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:14:29,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:14:29,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:14:29,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:14:29,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:14:29,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-21 17:14:29,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:14:29,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:14:29,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:14:29,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:14:29,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:14:29,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:14:29,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:14:29,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:14:29,214 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:14:29,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:14:29,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:14:29,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:14:29,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:14:29,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:14:29,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:14:29,216 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:14:29,216 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:14:29,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:14:29,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:14:29,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:14:29,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:14:29,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:14:29,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:14:29,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:14:29,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:14:29,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:14:29,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:14:29,219 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:14:29,220 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:14:29,220 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:14:29,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:14:29,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:14:29,221 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:14:29,221 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_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 [2022-11-21 17:14:29,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:14:29,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:14:29,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:14:29,697 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:14:29,697 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:14:29,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-11-21 17:14:32,747 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:14:33,151 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:14:33,155 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-11-21 17:14:33,194 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data/c337f7fe5/fe48e076729d4068813f2683fa5e01da/FLAG53c17b85c [2022-11-21 17:14:33,208 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/data/c337f7fe5/fe48e076729d4068813f2683fa5e01da [2022-11-21 17:14:33,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:14:33,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:14:33,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:14:33,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:14:33,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:14:33,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:14:33" (1/1) ... [2022-11-21 17:14:33,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e22bcb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:33, skipping insertion in model container [2022-11-21 17:14:33,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:14:33" (1/1) ... [2022-11-21 17:14:33,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:14:33,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:14:33,672 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:14:34,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:14:34,285 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:14:34,319 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:14:34,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:14:34,581 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:14:34,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34 WrapperNode [2022-11-21 17:14:34,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:14:34,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:14:34,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:14:34,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:14:34,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,640 INFO L138 Inliner]: procedures = 505, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-11-21 17:14:34,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:14:34,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:14:34,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:14:34,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:14:34,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,669 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:14:34,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:14:34,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:14:34,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:14:34,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (1/1) ... [2022-11-21 17:14:34,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:14:34,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:14:34,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:14:34,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:14:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 17:14:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:14:34,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:14:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:14:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 17:14:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:14:34,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:14:34,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:14:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 17:14:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:14:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 17:14:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:14:34,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 17:14:34,951 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:14:34,953 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:14:35,259 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:14:35,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:14:35,277 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:14:35,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:35 BoogieIcfgContainer [2022-11-21 17:14:35,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:14:35,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:14:35,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:14:35,287 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:14:35,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:14:33" (1/3) ... [2022-11-21 17:14:35,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c725622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:14:35, skipping insertion in model container [2022-11-21 17:14:35,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:14:34" (2/3) ... [2022-11-21 17:14:35,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c725622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:14:35, skipping insertion in model container [2022-11-21 17:14:35,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:35" (3/3) ... [2022-11-21 17:14:35,292 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-11-21 17:14:35,315 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:14:35,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-21 17:14:35,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c725622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:14:35, skipping insertion in model container [2022-11-21 17:14:35,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:14:35,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:14:35,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:14:35,318 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:14:35,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:14:35" (3/3) ... [2022-11-21 17:14:35,322 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:14:35,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 17:14:35,339 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-21 17:14:35,339 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-21 17:14:35,339 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 17:14:35,340 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:14:35,392 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:14:35,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:14:35,393 INFO L158 Benchmark]: Toolchain (without parser) took 2181.14ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 44.9MB in the beginning and 68.5MB in the end (delta: -23.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-11-21 17:14:35,394 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:14:35,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1369.26ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 44.7MB in the beginning and 62.2MB in the end (delta: -17.4MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2022-11-21 17:14:35,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.11ms. Allocated memory is still 102.8MB. Free memory was 62.2MB in the beginning and 59.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:14:35,397 INFO L158 Benchmark]: Boogie Preprocessor took 32.76ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:14:35,398 INFO L158 Benchmark]: RCFGBuilder took 604.67ms. Allocated memory is still 102.8MB. Free memory was 57.0MB in the beginning and 73.6MB in the end (delta: -16.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-21 17:14:35,398 INFO L158 Benchmark]: TraceAbstraction took 33.40ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:14:35,398 INFO L158 Benchmark]: Witness Printer took 74.55ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 68.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:14:35,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 71.3MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1369.26ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 44.7MB in the beginning and 62.2MB in the end (delta: -17.4MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.11ms. Allocated memory is still 102.8MB. Free memory was 62.2MB in the beginning and 59.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.76ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.67ms. Allocated memory is still 102.8MB. Free memory was 57.0MB in the beginning and 73.6MB in the end (delta: -16.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 33.40ms. Allocated memory is still 102.8MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 74.55ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 68.5MB in the end (delta: 2.4MB). 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 17:14:35,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c8e081-2d29-4f9c-afd9-89b4d4b25ea7/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE