./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_14_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2e3de80ed4655d29e3c2da883fe385cab2bc64f76f07b700f6e50473fae557f5 --- 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-6b4ec56 [2022-11-20 16:42:03,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 16:42:03,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 16:42:03,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 16:42:03,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 16:42:03,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 16:42:03,985 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 16:42:03,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 16:42:03,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 16:42:04,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 16:42:04,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 16:42:04,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 16:42:04,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 16:42:04,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 16:42:04,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 16:42:04,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 16:42:04,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 16:42:04,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 16:42:04,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 16:42:04,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 16:42:04,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 16:42:04,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 16:42:04,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 16:42:04,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 16:42:04,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 16:42:04,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 16:42:04,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 16:42:04,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 16:42:04,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 16:42:04,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 16:42:04,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 16:42:04,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 16:42:04,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 16:42:04,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 16:42:04,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 16:42:04,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 16:42:04,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 16:42:04,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 16:42:04,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 16:42:04,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 16:42:04,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 16:42:04,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 16:42:04,093 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 16:42:04,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 16:42:04,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 16:42:04,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 16:42:04,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 16:42:04,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 16:42:04,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 16:42:04,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 16:42:04,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 16:42:04,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 16:42:04,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 16:42:04,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 16:42:04,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 16:42:04,097 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 16:42:04,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 16:42:04,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 16:42:04,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 16:42:04,098 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 16:42:04,098 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 16:42:04,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 16:42:04,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:42:04,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 16:42:04,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 16:42:04,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 16:42:04,100 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 16:42:04,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 16:42:04,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 16:42:04,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e3de80ed4655d29e3c2da883fe385cab2bc64f76f07b700f6e50473fae557f5 [2022-11-20 16:42:04,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 16:42:04,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 16:42:04,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 16:42:04,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 16:42:04,463 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 16:42:04,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_14_bad.i [2022-11-20 16:42:07,682 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 16:42:08,188 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 16:42:08,190 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_14_bad.i [2022-11-20 16:42:08,222 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/data/bcfdcb871/f0c1591a2eb542e9acad9887b30c2fb1/FLAG1c5721392 [2022-11-20 16:42:08,243 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/data/bcfdcb871/f0c1591a2eb542e9acad9887b30c2fb1 [2022-11-20 16:42:08,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 16:42:08,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 16:42:08,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 16:42:08,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 16:42:08,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 16:42:08,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:42:08" (1/1) ... [2022-11-20 16:42:08,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a682445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:08, skipping insertion in model container [2022-11-20 16:42:08,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:42:08" (1/1) ... [2022-11-20 16:42:08,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 16:42:08,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 16:42:08,918 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:42:09,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:42:09,555 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 16:42:09,585 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 16:42:09,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 16:42:09,861 INFO L208 MainTranslator]: Completed translation [2022-11-20 16:42:09,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09 WrapperNode [2022-11-20 16:42:09,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 16:42:09,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 16:42:09,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 16:42:09,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 16:42:09,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,929 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2022-11-20 16:42:09,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 16:42:09,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 16:42:09,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 16:42:09,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 16:42:09,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,967 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:09,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 16:42:09,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 16:42:09,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 16:42:09,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 16:42:09,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:42:09" (1/1) ... [2022-11-20 16:42:10,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 16:42:10,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 16:42:10,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 16:42:10,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 16:42:10,097 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 16:42:10,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 16:42:10,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 16:42:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 16:42:10,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 16:42:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 16:42:10,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 16:42:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 16:42:10,100 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 16:42:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 16:42:10,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 16:42:10,318 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 16:42:10,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 16:42:10,555 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 16:42:10,617 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 16:42:10,621 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 16:42:10,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:42:10 BoogieIcfgContainer [2022-11-20 16:42:10,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 16:42:10,626 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 16:42:10,628 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 16:42:10,641 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 16:42:10,642 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:42:10" (1/1) ... [2022-11-20 16:42:10,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 16:42:10,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:42:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2022-11-20 16:42:10,718 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-20 16:42:10,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 16:42:10,722 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:42:10,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:42:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 16:42:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 16:42:11,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 16:42:11,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 14 transitions. [2022-11-20 16:42:11,498 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 16:42:11,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 16:42:11,498 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 16:42:11,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 16:42:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:42:11,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:42:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:42:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:42:11,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 16:42:11,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 16:42:11,766 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-20 16:42:11,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 04:42:11 ImpRootNode [2022-11-20 16:42:11,822 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 16:42:11,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 16:42:11,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 16:42:11,824 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 16:42:11,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:42:10" (3/4) ... [2022-11-20 16:42:11,828 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 16:42:11,891 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 16:42:11,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 16:42:11,893 INFO L158 Benchmark]: Toolchain (without parser) took 3643.99ms. Allocated memory is still 127.9MB. Free memory was 93.1MB in the beginning and 48.2MB in the end (delta: 44.9MB). Peak memory consumption was 43.8MB. Max. memory is 16.1GB. [2022-11-20 16:42:11,893 INFO L158 Benchmark]: CDTParser took 1.55ms. Allocated memory is still 102.8MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 16:42:11,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1611.95ms. Allocated memory is still 127.9MB. Free memory was 93.1MB in the beginning and 51.4MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-20 16:42:11,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.78ms. Allocated memory is still 127.9MB. Free memory was 51.4MB in the beginning and 48.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:42:11,895 INFO L158 Benchmark]: Boogie Preprocessor took 65.17ms. Allocated memory is still 127.9MB. Free memory was 48.5MB in the beginning and 47.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:42:11,896 INFO L158 Benchmark]: RCFGBuilder took 628.50ms. Allocated memory is still 127.9MB. Free memory was 47.2MB in the beginning and 92.2MB in the end (delta: -45.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2022-11-20 16:42:11,896 INFO L158 Benchmark]: CodeCheck took 1196.29ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 50.0MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-20 16:42:11,897 INFO L158 Benchmark]: Witness Printer took 68.73ms. Allocated memory is still 127.9MB. Free memory was 50.0MB in the beginning and 48.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 16:42:11,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 8 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a 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); [L1568] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=16, argc=16, argv={14:13}, argv={14:13}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_fscanf_postdec_14_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE globalFive==5 [L1556] COND TRUE globalFive==5 [L1559] EXPR \read(data) [L1559] data-- VAL [\read(data)=-2147483648, data={1144:0}, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55ms. Allocated memory is still 102.8MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1611.95ms. Allocated memory is still 127.9MB. Free memory was 93.1MB in the beginning and 51.4MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.78ms. Allocated memory is still 127.9MB. Free memory was 51.4MB in the beginning and 48.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.17ms. Allocated memory is still 127.9MB. Free memory was 48.5MB in the beginning and 47.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.50ms. Allocated memory is still 127.9MB. Free memory was 47.2MB in the beginning and 92.2MB in the end (delta: -45.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * CodeCheck took 1196.29ms. Allocated memory is still 127.9MB. Free memory was 92.2MB in the beginning and 50.0MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 68.73ms. Allocated memory is still 127.9MB. Free memory was 50.0MB in the beginning and 48.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 16:42:11,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f145112-92be-4726-87ff-dc92cadb4678/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)