./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e64ceeebdb641a47b11fb890cb49c42b3cff16e2df1bb2a57e7638c4f4e7a17b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:34:31,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:34:31,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:34:31,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:34:31,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:34:31,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:34:31,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:34:32,000 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:34:32,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:34:32,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:34:32,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:34:32,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:34:32,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:34:32,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:34:32,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:34:32,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:34:32,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:34:32,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:34:32,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:34:32,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:34:32,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:34:32,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:34:32,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:34:32,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:34:32,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:34:32,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:34:32,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:34:32,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:34:32,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:34:32,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:34:32,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:34:32,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:34:32,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:34:32,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:34:32,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:34:32,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:34:32,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:34:32,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:34:32,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:34:32,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:34:32,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:34:32,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:34:32,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:34:32,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:34:32,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:34:32,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:34:32,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:34:32,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:34:32,104 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:34:32,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:34:32,104 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:34:32,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:34:32,105 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:34:32,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:34:32,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:34:32,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:34:32,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:34:32,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:34:32,107 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:34:32,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:34:32,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:34:32,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:34:32,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:34:32,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:34:32,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:34:32,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:32,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:34:32,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:34:32,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:34:32,109 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:34:32,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:34:32,110 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:34:32,110 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:34:32,110 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:34:32,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:34:32,111 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e64ceeebdb641a47b11fb890cb49c42b3cff16e2df1bb2a57e7638c4f4e7a17b [2022-11-25 15:34:32,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:34:32,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:34:32,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:34:32,483 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:34:32,484 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:34:32,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i [2022-11-25 15:34:35,487 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:34:35,840 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:34:35,841 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i [2022-11-25 15:34:35,862 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data/049e1a88b/9d1b3d69455a476583192ab4e907d0ff/FLAGe04f7aacb [2022-11-25 15:34:35,877 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data/049e1a88b/9d1b3d69455a476583192ab4e907d0ff [2022-11-25 15:34:35,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:34:35,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:34:35,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:35,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:34:35,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:34:35,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:35" (1/1) ... [2022-11-25 15:34:35,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@272226a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:35, skipping insertion in model container [2022-11-25 15:34:35,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:35" (1/1) ... [2022-11-25 15:34:35,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:34:35,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:34:36,372 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:34:36,896 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:36,902 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:36,904 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:36,907 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:36,908 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:36,930 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:34:36,937 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:34:36,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:36,949 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:34:36,968 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:34:37,017 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:37,018 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:37,020 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:37,022 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:37,023 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:37,027 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:34:37,035 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:34:37,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:37,191 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:34:37,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37 WrapperNode [2022-11-25 15:34:37,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:37,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:37,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:34:37,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:34:37,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,276 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-11-25 15:34:37,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:37,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:34:37,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:34:37,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:34:37,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,301 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:34:37,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:34:37,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:34:37,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:34:37,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (1/1) ... [2022-11-25 15:34:37,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:37,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:37,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:34:37,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:34:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 15:34:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:34:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:34:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:34:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 15:34:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:34:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:34:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:34:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:34:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:34:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:34:37,584 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:34:37,585 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:34:37,755 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:34:37,770 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:34:37,770 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:34:37,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:37 BoogieIcfgContainer [2022-11-25 15:34:37,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:34:37,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:34:37,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:34:37,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:34:37,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:34:35" (1/3) ... [2022-11-25 15:34:37,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e82d2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:37, skipping insertion in model container [2022-11-25 15:34:37,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:37" (2/3) ... [2022-11-25 15:34:37,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e82d2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:37, skipping insertion in model container [2022-11-25 15:34:37,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:37" (3/3) ... [2022-11-25 15:34:37,782 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i [2022-11-25 15:34:37,804 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:34:37,805 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:34:37,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:34:37,883 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;@7752042a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:34:37,883 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:34:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 15:34:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 15:34:37,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:37,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:37,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:34:37,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:37,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-11-25 15:34:37,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:37,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315494436] [2022-11-25 15:34:37,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:37,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:38,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:34:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:38,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:38,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:38,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315494436] [2022-11-25 15:34:38,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315494436] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:38,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:38,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:34:38,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336673373] [2022-11-25 15:34:38,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:38,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:38,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:38,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:38,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:38,328 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:38,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:38,357 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-11-25 15:34:38,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:38,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 15:34:38,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:38,369 INFO L225 Difference]: With dead ends: 42 [2022-11-25 15:34:38,369 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 15:34:38,372 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 [2022-11-25 15:34:38,378 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:34:38,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:38,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 15:34:38,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-25 15:34:38,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:34:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-25 15:34:38,441 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-25 15:34:38,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:38,443 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-25 15:34:38,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:38,443 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-25 15:34:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 15:34:38,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:38,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:38,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:34:38,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:34:38,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-11-25 15:34:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:38,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103635961] [2022-11-25 15:34:38,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:38,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:38,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:34:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:38,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:34:38,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103635961] [2022-11-25 15:34:38,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103635961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:38,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:38,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:34:38,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379370448] [2022-11-25 15:34:38,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:38,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:38,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:34:38,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:38,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:38,541 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:38,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:38,559 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-25 15:34:38,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:38,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 15:34:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:38,560 INFO L225 Difference]: With dead ends: 18 [2022-11-25 15:34:38,560 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 15:34:38,561 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 [2022-11-25 15:34:38,562 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:34:38,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:38,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 15:34:38,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-25 15:34:38,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:34:38,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-25 15:34:38,576 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-11-25 15:34:38,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:38,576 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-25 15:34:38,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:38,577 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-25 15:34:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 15:34:38,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:38,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:38,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:34:38,578 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:34:38,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:38,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-11-25 15:34:38,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:34:38,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825803034] [2022-11-25 15:34:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:38,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:34:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:34:38,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:34:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:34:38,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:34:38,696 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:34:38,697 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 15:34:38,699 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 15:34:38,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:34:38,703 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 15:34:38,707 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:34:38,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:34:38 BoogieIcfgContainer [2022-11-25 15:34:38,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:34:38,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:34:38,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:34:38,763 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:34:38,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:37" (3/4) ... [2022-11-25 15:34:38,766 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:34:38,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:34:38,773 INFO L158 Benchmark]: Toolchain (without parser) took 2885.89ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 83.8MB in the beginning and 138.2MB in the end (delta: -54.4MB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2022-11-25 15:34:38,774 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 136.3MB. Free memory was 98.7MB in the beginning and 98.6MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:38,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1310.29ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 83.6MB in the beginning and 110.4MB in the end (delta: -26.8MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-11-25 15:34:38,782 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.17ms. Allocated memory is still 190.8MB. Free memory was 110.4MB in the beginning and 107.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:38,783 INFO L158 Benchmark]: Boogie Preprocessor took 26.49ms. Allocated memory is still 190.8MB. Free memory was 107.8MB in the beginning and 106.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:38,783 INFO L158 Benchmark]: RCFGBuilder took 466.27ms. Allocated memory is still 190.8MB. Free memory was 106.2MB in the beginning and 93.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:34:38,784 INFO L158 Benchmark]: TraceAbstraction took 988.59ms. Allocated memory is still 190.8MB. Free memory was 92.3MB in the beginning and 138.2MB in the end (delta: -45.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:38,784 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 190.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:38,786 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 136.3MB. Free memory was 98.7MB in the beginning and 98.6MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1310.29ms. Allocated memory was 136.3MB in the beginning and 190.8MB in the end (delta: 54.5MB). Free memory was 83.6MB in the beginning and 110.4MB in the end (delta: -26.8MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.17ms. Allocated memory is still 190.8MB. Free memory was 110.4MB in the beginning and 107.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.49ms. Allocated memory is still 190.8MB. Free memory was 107.8MB in the beginning and 106.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.27ms. Allocated memory is still 190.8MB. Free memory was 106.2MB in the beginning and 93.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 988.59ms. Allocated memory is still 190.8MB. Free memory was 92.3MB in the beginning and 138.2MB in the end (delta: -45.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 190.8MB. Free memory is still 138.2MB. 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_FIVE = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}, STATIC_CONST_FIVE=5] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741831}, argv={1073741826:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1580] CALL CWE190_Integer_Overflow__int_fgets_multiply_06_bad() [L1551] int data; [L1552] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1567] COND TRUE STATIC_CONST_FIVE==5 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1569] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1571] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 15:34:38,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e64ceeebdb641a47b11fb890cb49c42b3cff16e2df1bb2a57e7638c4f4e7a17b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:34:41,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:34:41,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:34:41,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:34:41,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:34:41,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:34:41,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:34:41,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:34:41,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:34:41,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:34:41,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:34:41,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:34:41,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:34:41,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:34:41,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:34:41,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:34:41,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:34:41,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:34:41,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:34:41,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:34:41,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:34:41,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:34:41,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:34:41,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:34:41,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:34:41,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:34:41,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:34:41,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:34:41,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:34:41,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:34:41,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:34:41,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:34:41,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:34:41,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:34:41,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:34:41,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:34:41,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:34:41,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:34:41,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:34:41,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:34:41,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:34:41,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 15:34:41,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:34:41,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:34:41,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:34:41,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:34:41,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:34:41,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:34:41,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:34:41,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:34:41,450 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:34:41,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:34:41,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:34:41,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:34:41,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:34:41,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:34:41,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:34:41,452 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 15:34:41,452 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 15:34:41,452 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:34:41,452 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 15:34:41,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:34:41,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:34:41,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:34:41,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:34:41,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:34:41,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:34:41,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:41,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:34:41,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:34:41,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:34:41,459 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 15:34:41,459 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 15:34:41,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:34:41,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:34:41,460 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:34:41,460 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:34:41,460 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 15:34:41,461 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e64ceeebdb641a47b11fb890cb49c42b3cff16e2df1bb2a57e7638c4f4e7a17b [2022-11-25 15:34:41,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:34:41,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:34:41,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:34:41,848 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:34:41,849 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:34:41,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i [2022-11-25 15:34:44,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:34:45,298 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:34:45,299 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i [2022-11-25 15:34:45,321 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data/3cf3d18be/97efbd032f49497ba1f7b1ec6e1f3ec8/FLAGe32e87a4f [2022-11-25 15:34:45,344 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/data/3cf3d18be/97efbd032f49497ba1f7b1ec6e1f3ec8 [2022-11-25 15:34:45,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:34:45,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:34:45,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:45,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:34:45,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:34:45,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:45" (1/1) ... [2022-11-25 15:34:45,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a6e0e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:45, skipping insertion in model container [2022-11-25 15:34:45,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:34:45" (1/1) ... [2022-11-25 15:34:45,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:34:45,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:34:45,919 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:34:46,404 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:46,409 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:46,435 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:46,437 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:46,437 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:46,464 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:34:46,469 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:34:46,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:46,486 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:34:46,505 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:34:46,551 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:34:46,553 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:46,554 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:34:46,556 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:46,560 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:34:46,564 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:34:46,571 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:34:46,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:34:46,710 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:34:46,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46 WrapperNode [2022-11-25 15:34:46,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:34:46,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:46,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:34:46,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:34:46,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,773 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-11-25 15:34:46,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:34:46,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:34:46,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:34:46,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:34:46,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,814 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:34:46,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:34:46,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:34:46,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:34:46,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (1/1) ... [2022-11-25 15:34:46,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:34:46,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:34:46,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:34:46,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:34:46,916 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 15:34:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:34:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:34:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:34:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 15:34:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:34:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:34:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:34:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:34:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:34:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 15:34:47,133 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:34:47,135 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:34:47,303 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:34:47,309 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:34:47,313 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:34:47,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:47 BoogieIcfgContainer [2022-11-25 15:34:47,316 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:34:47,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:34:47,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:34:47,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:34:47,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:34:45" (1/3) ... [2022-11-25 15:34:47,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae2643a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:47, skipping insertion in model container [2022-11-25 15:34:47,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:34:46" (2/3) ... [2022-11-25 15:34:47,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ae2643a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:34:47, skipping insertion in model container [2022-11-25 15:34:47,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:47" (3/3) ... [2022-11-25 15:34:47,329 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_06_bad.i [2022-11-25 15:34:47,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:34:47,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:34:47,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:34:47,397 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;@7b1d6147, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:34:47,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:34:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 15:34:47,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 15:34:47,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:47,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:47,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:34:47,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:47,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-11-25 15:34:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:34:47,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038341047] [2022-11-25 15:34:47,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:47,430 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:34:47,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:34:47,439 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 15:34:47,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 15:34:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:47,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:34:47,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:47,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:47,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:47,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:34:47,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038341047] [2022-11-25 15:34:47,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038341047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:47,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:47,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:34:47,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207928458] [2022-11-25 15:34:47,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:47,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:34:47,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:47,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:47,703 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:47,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:47,736 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-11-25 15:34:47,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 15:34:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:47,746 INFO L225 Difference]: With dead ends: 42 [2022-11-25 15:34:47,746 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 15:34:47,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:47,752 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:34:47,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:47,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 15:34:47,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-25 15:34:47,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:34:47,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-25 15:34:47,789 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-25 15:34:47,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:47,791 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-25 15:34:47,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:47,791 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-25 15:34:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 15:34:47,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:47,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:47,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:48,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:34:48,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:34:48,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-11-25 15:34:48,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:34:48,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220174905] [2022-11-25 15:34:48,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:48,008 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:34:48,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:34:48,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 15:34:48,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 15:34:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:34:48,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 15:34:48,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:34:48,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:34:48,175 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:34:48,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:34:48,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220174905] [2022-11-25 15:34:48,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220174905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:34:48,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:34:48,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 15:34:48,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647651879] [2022-11-25 15:34:48,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:34:48,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:34:48,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:34:48,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:34:48,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:48,179 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:48,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:34:48,193 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-25 15:34:48,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:34:48,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 15:34:48,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:34:48,195 INFO L225 Difference]: With dead ends: 18 [2022-11-25 15:34:48,195 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 15:34:48,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 15:34:48,197 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:34:48,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:34:48,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 15:34:48,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-25 15:34:48,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:34:48,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-25 15:34:48,212 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-11-25 15:34:48,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:34:48,213 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-25 15:34:48,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 15:34:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-25 15:34:48,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 15:34:48,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:34:48,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:34:48,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:48,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:34:48,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:34:48,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:34:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-11-25 15:34:48,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:34:48,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2086926731] [2022-11-25 15:34:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:34:48,431 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:34:48,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:34:48,432 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 15:34:48,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 15:34:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:34:48,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:34:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:34:48,639 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 15:34:48,639 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:34:48,641 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 15:34:48,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 15:34:48,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 15:34:48,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:34:48,846 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 15:34:48,849 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:34:48,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:34:48 BoogieIcfgContainer [2022-11-25 15:34:48,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:34:48,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:34:48,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:34:48,889 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:34:48,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:34:47" (3/4) ... [2022-11-25 15:34:48,893 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:34:48,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:34:48,894 INFO L158 Benchmark]: Toolchain (without parser) took 3543.36ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 57.0MB in the beginning and 42.0MB in the end (delta: 15.0MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2022-11-25 15:34:48,898 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:48,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1358.58ms. Allocated memory is still 81.8MB. Free memory was 57.0MB in the beginning and 38.2MB in the end (delta: 18.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-25 15:34:48,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.65ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 35.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:34:48,906 INFO L158 Benchmark]: Boogie Preprocessor took 42.73ms. Allocated memory is still 81.8MB. Free memory was 35.1MB in the beginning and 33.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:34:48,907 INFO L158 Benchmark]: RCFGBuilder took 495.76ms. Allocated memory is still 81.8MB. Free memory was 33.0MB in the beginning and 44.1MB in the end (delta: -11.0MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-11-25 15:34:48,908 INFO L158 Benchmark]: TraceAbstraction took 1569.44ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 43.6MB in the beginning and 42.0MB in the end (delta: 1.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-25 15:34:48,908 INFO L158 Benchmark]: Witness Printer took 5.51ms. Allocated memory is still 98.6MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:34:48,910 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1358.58ms. Allocated memory is still 81.8MB. Free memory was 57.0MB in the beginning and 38.2MB in the end (delta: 18.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.65ms. Allocated memory is still 81.8MB. Free memory was 38.2MB in the beginning and 35.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.73ms. Allocated memory is still 81.8MB. Free memory was 35.1MB in the beginning and 33.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.76ms. Allocated memory is still 81.8MB. Free memory was 33.0MB in the beginning and 44.1MB in the end (delta: -11.0MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1569.44ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 43.6MB in the beginning and 42.0MB in the end (delta: 1.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 5.51ms. Allocated memory is still 98.6MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static const int STATIC_CONST_FIVE = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}, STATIC_CONST_FIVE=5] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1580] CALL CWE190_Integer_Overflow__int_fgets_multiply_06_bad() [L1551] int data; [L1552] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1567] COND TRUE STATIC_CONST_FIVE==5 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1569] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] [L1571] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FIVE=5] - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 15:34:48,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9410de40-8255-42cf-8402-d48f3a0ef0c7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample