./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_good.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_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/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_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/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_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/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 a8c46ec04e75aa1a4b1ff90d2d349ea586463936f9b5852bf115c11af19268b2 --- 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 17:20:21,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:20:21,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:20:21,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:20:21,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:20:21,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:20:21,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:20:21,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:20:21,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:20:21,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:20:21,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:20:21,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:20:21,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:20:21,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:20:21,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:20:21,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:20:21,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:20:21,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:20:21,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:20:21,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:20:21,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:20:21,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:20:21,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:20:21,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:20:21,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:20:21,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:20:21,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:20:21,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:20:21,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:20:21,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:20:21,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:20:21,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:20:21,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:20:21,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:20:21,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:20:21,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:20:21,997 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:20:21,997 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:20:21,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:20:21,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:20:22,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:20:22,001 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:20:22,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:20:22,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:20:22,045 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:20:22,045 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:20:22,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:20:22,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:20:22,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:20:22,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:20:22,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:20:22,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:20:22,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:20:22,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:20:22,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:20:22,048 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:20:22,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:20:22,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:20:22,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:20:22,049 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:20:22,049 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:20:22,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:20:22,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:20:22,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:20:22,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:20:22,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:20:22,050 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:20:22,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:20:22,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:20:22,051 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_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8c46ec04e75aa1a4b1ff90d2d349ea586463936f9b5852bf115c11af19268b2 [2022-11-20 17:20:22,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:20:22,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:20:22,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:20:22,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:20:22,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:20:22,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_good.i [2022-11-20 17:20:25,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:20:25,876 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:20:25,881 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_02_good.i [2022-11-20 17:20:25,915 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/data/4dd7fa552/8e38ebbaf5e444e08c0f84acd408d099/FLAGf0db49d1b [2022-11-20 17:20:25,931 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/data/4dd7fa552/8e38ebbaf5e444e08c0f84acd408d099 [2022-11-20 17:20:25,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:20:25,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:20:25,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:20:25,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:20:25,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:20:25,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:20:25" (1/1) ... [2022-11-20 17:20:25,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d412a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:25, skipping insertion in model container [2022-11-20 17:20:25,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:20:25" (1/1) ... [2022-11-20 17:20:25,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:20:26,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:20:26,415 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:20:27,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:20:27,098 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:20:27,116 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:20:27,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:20:27,394 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:20:27,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27 WrapperNode [2022-11-20 17:20:27,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:20:27,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:20:27,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:20:27,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:20:27,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,484 INFO L138 Inliner]: procedures = 503, calls = 85, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 111 [2022-11-20 17:20:27,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:20:27,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:20:27,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:20:27,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:20:27,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,510 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:20:27,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:20:27,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:20:27,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:20:27,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:20:27" (1/1) ... [2022-11-20 17:20:27,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:20:27,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:20:27,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:20:27,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:20:27,601 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 17:20:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 17:20:27,602 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 17:20:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 17:20:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:20:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:20:27,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:20:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:20:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:20:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:20:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 17:20:27,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:20:27,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:20:27,758 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:20:27,761 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:20:28,041 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:20:28,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:20:28,128 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 17:20:28,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:28 BoogieIcfgContainer [2022-11-20 17:20:28,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:20:28,131 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:20:28,131 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:20:28,142 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:20:28,142 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:28" (1/1) ... [2022-11-20 17:20:28,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:20:28,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2022-11-20 17:20:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-11-20 17:20:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 17:20:28,223 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:28,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:28,745 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 17:20:28,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:28,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 53 transitions. [2022-11-20 17:20:28,844 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2022-11-20 17:20:28,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 17:20:28,844 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:28,939 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 17:20:29,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 40 states and 52 transitions. [2022-11-20 17:20:29,014 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2022-11-20 17:20:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 17:20:29,015 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:29,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:29,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 17:20:29,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:29,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 50 transitions. [2022-11-20 17:20:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2022-11-20 17:20:29,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 17:20:29,499 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:29,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 17:20:29,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:29,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 49 transitions. [2022-11-20 17:20:29,777 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2022-11-20 17:20:29,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 17:20:29,778 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:29,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:20:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 36 states and 44 transitions. [2022-11-20 17:20:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-11-20 17:20:29,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 17:20:29,888 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:20:30,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:30,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 43 transitions. [2022-11-20 17:20:30,103 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2022-11-20 17:20:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 17:20:30,104 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:20:30,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:30,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 34 states and 41 transitions. [2022-11-20 17:20:30,230 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2022-11-20 17:20:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-20 17:20:30,231 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:20:30,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:20:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:20:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:20:30,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:20:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 40 transitions. [2022-11-20 17:20:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2022-11-20 17:20:30,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:20:30,435 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2022-11-20 17:20:30,443 INFO L754 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2022-11-20 17:20:30,505 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:20:30,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:20:30 ImpRootNode [2022-11-20 17:20:30,512 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:20:30,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:20:30,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:20:30,513 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:20:30,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:20:28" (3/4) ... [2022-11-20 17:20:30,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:20:30,537 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 17:20:30,538 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 17:20:30,547 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-20 17:20:30,548 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 17:20:30,548 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 17:20:30,549 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:20:30,603 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:20:30,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:20:30,605 INFO L158 Benchmark]: Toolchain (without parser) took 4668.84ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 104.0MB in the beginning and 131.9MB in the end (delta: -28.0MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-11-20 17:20:30,605 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:20:30,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1456.99ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 104.0MB in the beginning and 137.8MB in the end (delta: -33.9MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-11-20 17:20:30,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.80ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 134.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:20:30,606 INFO L158 Benchmark]: Boogie Preprocessor took 28.79ms. Allocated memory is still 192.9MB. Free memory was 134.7MB in the beginning and 132.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:20:30,607 INFO L158 Benchmark]: RCFGBuilder took 615.51ms. Allocated memory is still 192.9MB. Free memory was 132.6MB in the beginning and 112.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 17:20:30,607 INFO L158 Benchmark]: CodeCheck took 2381.11ms. Allocated memory is still 192.9MB. Free memory was 112.7MB in the beginning and 136.1MB in the end (delta: -23.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:20:30,608 INFO L158 Benchmark]: Witness Printer took 91.39ms. Allocated memory is still 192.9MB. Free memory was 136.1MB in the beginning and 131.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:20:30,610 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 3 procedures, 43 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 402 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 428 IncrementalHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 122 mSDtfsCounter, 428 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 972 GetRequests, 936 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 28/28 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 - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1586]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1611]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1646]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 138.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1456.99ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 104.0MB in the beginning and 137.8MB in the end (delta: -33.9MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.80ms. Allocated memory is still 192.9MB. Free memory was 137.8MB in the beginning and 134.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.79ms. Allocated memory is still 192.9MB. Free memory was 134.7MB in the beginning and 132.6MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 615.51ms. Allocated memory is still 192.9MB. Free memory was 132.6MB in the beginning and 112.7MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 2381.11ms. Allocated memory is still 192.9MB. Free memory was 112.7MB in the beginning and 136.1MB in the end (delta: -23.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 91.39ms. Allocated memory is still 192.9MB. Free memory was 136.1MB in the beginning and 131.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:20:30,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac8e8047-398c-4cc1-ac54-28a8c6a477a8/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 Result: TRUE