./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_31_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_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/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_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/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_58365952-4f7c-42b4-a6a9-a46010e2f743/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 461796fa5ac9511b9a78d0716ad67a57772b478da0c8bae92c1903388a02f348 --- 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 18:18:18,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:18:18,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:18:18,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:18:18,582 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:18:18,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:18:18,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:18:18,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:18:18,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:18:18,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:18:18,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:18:18,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:18:18,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:18:18,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:18:18,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:18:18,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:18:18,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:18:18,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:18:18,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:18:18,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:18:18,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:18:18,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:18:18,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:18:18,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:18:18,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:18:18,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:18:18,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:18:18,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:18:18,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:18:18,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:18:18,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:18:18,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:18:18,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:18:18,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:18:18,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:18:18,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:18:18,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:18:18,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:18:18,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:18:18,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:18:18,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:18:18,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:18:18,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:18:18,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:18:18,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:18:18,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:18:18,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:18:18,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:18:18,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:18:18,699 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:18:18,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:18:18,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:18:18,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:18:18,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:18:18,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:18:18,701 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:18:18,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:18:18,702 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:18:18,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:18:18,702 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:18:18,702 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:18:18,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:18:18,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:18:18,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:18:18,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:18:18,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:18:18,703 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:18:18,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:18:18,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:18:18,704 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_58365952-4f7c-42b4-a6a9-a46010e2f743/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 461796fa5ac9511b9a78d0716ad67a57772b478da0c8bae92c1903388a02f348 [2022-11-20 18:18:19,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:18:19,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:18:19,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:18:19,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:18:19,072 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:18:19,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_31_bad.i [2022-11-20 18:18:22,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:18:22,525 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:18:22,529 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_31_bad.i [2022-11-20 18:18:22,557 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/data/5f965cfab/c0d85a1ece5349f295e57ae0ff34b529/FLAG481e8b9d0 [2022-11-20 18:18:22,574 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/data/5f965cfab/c0d85a1ece5349f295e57ae0ff34b529 [2022-11-20 18:18:22,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:18:22,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:18:22,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:18:22,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:18:22,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:18:22,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:18:22" (1/1) ... [2022-11-20 18:18:22,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56293eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:22, skipping insertion in model container [2022-11-20 18:18:22,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:18:22" (1/1) ... [2022-11-20 18:18:22,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:18:22,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:18:23,116 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 18:18:23,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:18:23,669 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:18:23,703 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 18:18:23,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:18:23,883 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:18:23,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23 WrapperNode [2022-11-20 18:18:23,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:18:23,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:18:23,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:18:23,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:18:23,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,949 INFO L138 Inliner]: procedures = 499, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2022-11-20 18:18:23,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:18:23,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:18:23,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:18:23,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:18:23,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,971 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:18:23,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:18:23,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:18:23,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:18:23,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:23" (1/1) ... [2022-11-20 18:18:23,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:18:23,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:18:24,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:18:24,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:18:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 18:18:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 18:18:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:18:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:18:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 18:18:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:18:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:18:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:18:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 18:18:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:18:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 18:18:24,218 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:18:24,220 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:18:24,428 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:18:24,478 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:18:24,485 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 18:18:24,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:24 BoogieIcfgContainer [2022-11-20 18:18:24,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:18:24,489 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:18:24,490 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:18:24,500 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:18:24,500 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:24" (1/1) ... [2022-11-20 18:18:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:18:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:18:24,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 18:18:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 18:18:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:18:24,595 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:18:24,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:18:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:18:25,141 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 18:18:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:18:25,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-20 18:18:25,207 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-20 18:18:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:18:25,207 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:18:25,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:18:25,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:25,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:18:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:25,340 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:18:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:25,381 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-11-20 18:18:25,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:18:25 ImpRootNode [2022-11-20 18:18:25,419 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:18:25,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:18:25,420 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:18:25,421 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:18:25,421 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:24" (3/4) ... [2022-11-20 18:18:25,423 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:18:25,469 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:18:25,476 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:18:25,478 INFO L158 Benchmark]: Toolchain (without parser) took 2896.71ms. Allocated memory is still 161.5MB. Free memory was 128.6MB in the beginning and 101.6MB in the end (delta: 27.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-20 18:18:25,479 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 130.0MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:18:25,481 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1300.98ms. Allocated memory is still 161.5MB. Free memory was 128.6MB in the beginning and 74.4MB in the end (delta: 54.2MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-11-20 18:18:25,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.95ms. Allocated memory is still 161.5MB. Free memory was 74.4MB in the beginning and 71.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 18:18:25,485 INFO L158 Benchmark]: Boogie Preprocessor took 25.13ms. Allocated memory is still 161.5MB. Free memory was 71.1MB in the beginning and 70.2MB in the end (delta: 936.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:18:25,492 INFO L158 Benchmark]: RCFGBuilder took 512.55ms. Allocated memory is still 161.5MB. Free memory was 70.2MB in the beginning and 56.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:18:25,493 INFO L158 Benchmark]: CodeCheck took 930.32ms. Allocated memory is still 161.5MB. Free memory was 55.5MB in the beginning and 103.7MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:18:25,493 INFO L158 Benchmark]: Witness Printer took 56.33ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 101.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:18:25,495 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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: 1557]: 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); [L1565] 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) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={35:34}, argv={35:34}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_fscanf_sub_31_bad() [L1550] int data; [L1551] data = 0 [L1554] EXPR \read(data) [L1554] int dataCopy = data; [L1555] int data = dataCopy; VAL [data={8367:0}, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] data - 1 VAL [data=-2147483648, data={8367:0}, dataCopy=-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 0.62ms. Allocated memory is still 130.0MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1300.98ms. Allocated memory is still 161.5MB. Free memory was 128.6MB in the beginning and 74.4MB in the end (delta: 54.2MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.95ms. Allocated memory is still 161.5MB. Free memory was 74.4MB in the beginning and 71.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.13ms. Allocated memory is still 161.5MB. Free memory was 71.1MB in the beginning and 70.2MB in the end (delta: 936.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 512.55ms. Allocated memory is still 161.5MB. Free memory was 70.2MB in the beginning and 56.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 930.32ms. Allocated memory is still 161.5MB. Free memory was 55.5MB in the beginning and 103.7MB in the end (delta: -48.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 56.33ms. Allocated memory is still 161.5MB. Free memory was 103.7MB in the beginning and 101.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 18:18:25,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58365952-4f7c-42b4-a6a9-a46010e2f743/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)