./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_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_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/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_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/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_da575708-ba8f-489c-948b-671a9e5949c8/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 07216d414797f4297ccdb666baac9eb57de41dda31e35143d7fa0005d6f5b6fa --- 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 17:12:25,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:12:25,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:12:25,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:12:25,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:12:25,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:12:25,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:12:25,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:12:25,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:12:25,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:12:25,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:12:25,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:12:25,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:12:25,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:12:25,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:12:25,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:12:25,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:12:25,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:12:25,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:12:25,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:12:25,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:12:25,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:12:25,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:12:25,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:12:25,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:12:25,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:12:25,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:12:25,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:12:25,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:12:25,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:12:25,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:12:25,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:12:25,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:12:25,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:12:25,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:12:25,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:12:25,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:12:25,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:12:25,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:12:25,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:12:25,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:12:25,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:12:26,024 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:12:26,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:12:26,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:12:26,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:12:26,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:12:26,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:12:26,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:12:26,032 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:12:26,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:12:26,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:12:26,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:12:26,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:12:26,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:12:26,035 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:12:26,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:12:26,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:12:26,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:12:26,035 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:12:26,036 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:12:26,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:12:26,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:12:26,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:12:26,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:12:26,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:12:26,037 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:12:26,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:12:26,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:12:26,038 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_da575708-ba8f-489c-948b-671a9e5949c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07216d414797f4297ccdb666baac9eb57de41dda31e35143d7fa0005d6f5b6fa [2022-11-20 17:12:26,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:12:26,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:12:26,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:12:26,391 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:12:26,393 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:12:26,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_good.i [2022-11-20 17:12:29,401 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:12:29,770 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:12:29,771 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_61_good.i [2022-11-20 17:12:29,801 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/data/29f1c5381/b6a4125289104992ad226843da7a04d5/FLAGe4a819218 [2022-11-20 17:12:29,821 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/data/29f1c5381/b6a4125289104992ad226843da7a04d5 [2022-11-20 17:12:29,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:12:29,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:12:29,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:12:29,829 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:12:29,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:12:29,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:12:29" (1/1) ... [2022-11-20 17:12:29,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25240f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:29, skipping insertion in model container [2022-11-20 17:12:29,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:12:29" (1/1) ... [2022-11-20 17:12:29,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:12:29,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:12:30,320 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:12:30,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:12:30,933 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:12:30,972 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:12:31,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:12:31,269 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:12:31,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31 WrapperNode [2022-11-20 17:12:31,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:12:31,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:12:31,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:12:31,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:12:31,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,358 INFO L138 Inliner]: procedures = 504, calls = 69, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 81 [2022-11-20 17:12:31,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:12:31,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:12:31,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:12:31,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:12:31,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:12:31,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:12:31,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:12:31,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:12:31,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:12:31,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:12:31,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:12:31,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:12:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 17:12:31,473 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 17:12:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 17:12:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 17:12:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 17:12:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:12:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 17:12:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:12:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:12:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:12:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:12:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 17:12:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:12:31,624 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:12:31,626 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:12:31,849 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:12:31,926 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:12:31,932 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 17:12:31,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:31 BoogieIcfgContainer [2022-11-20 17:12:31,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:12:31,946 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:12:31,946 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:12:31,954 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:12:31,954 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:31" (1/1) ... [2022-11-20 17:12:31,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:12:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:12:32,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-11-20 17:12:32,022 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-20 17:12:32,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:12:32,025 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:12:32,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:12:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:12:32,313 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 17:12:32,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:12:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-11-20 17:12:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-20 17:12:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:12:32,353 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:12:32,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:12:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:12:32,534 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 17:12:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:12:32,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-11-20 17:12:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-20 17:12:32,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 17:12:32,608 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:12:32,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:12:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:12:32,705 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 17:12:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:12:32,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2022-11-20 17:12:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-20 17:12:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 17:12:32,764 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:12:32,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:12:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:12:32,839 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 17:12:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:12:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2022-11-20 17:12:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-20 17:12:32,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:12:32,894 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-20 17:12:32,903 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:12:32,931 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:12:32,936 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:12:32,937 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:12:32,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:12:32 ImpRootNode [2022-11-20 17:12:32,937 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:12:32,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:12:32,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:12:32,939 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:12:32,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:12:31" (3/4) ... [2022-11-20 17:12:32,951 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:12:32,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 17:12:32,958 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 17:12:32,966 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-20 17:12:32,967 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 17:12:32,968 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 17:12:32,968 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:12:33,036 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:12:33,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:12:33,043 INFO L158 Benchmark]: Toolchain (without parser) took 3218.49ms. Allocated memory is still 209.7MB. Free memory was 159.8MB in the beginning and 104.0MB in the end (delta: 55.8MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2022-11-20 17:12:33,044 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 146.8MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:12:33,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1440.56ms. Allocated memory is still 209.7MB. Free memory was 159.8MB in the beginning and 175.1MB in the end (delta: -15.3MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. [2022-11-20 17:12:33,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.66ms. Allocated memory is still 209.7MB. Free memory was 175.1MB in the beginning and 171.1MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:12:33,045 INFO L158 Benchmark]: Boogie Preprocessor took 27.03ms. Allocated memory is still 209.7MB. Free memory was 171.1MB in the beginning and 170.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:12:33,045 INFO L158 Benchmark]: RCFGBuilder took 557.88ms. Allocated memory is still 209.7MB. Free memory was 170.1MB in the beginning and 153.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:12:33,049 INFO L158 Benchmark]: CodeCheck took 991.68ms. Allocated memory is still 209.7MB. Free memory was 153.3MB in the beginning and 107.1MB in the end (delta: 46.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-20 17:12:33,049 INFO L158 Benchmark]: Witness Printer took 104.51ms. Allocated memory is still 209.7MB. Free memory was 107.1MB in the beginning and 104.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:12:33,051 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, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 46 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - PositiveResult [Line: 1555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1555]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1568]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1585]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1599]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 146.8MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1440.56ms. Allocated memory is still 209.7MB. Free memory was 159.8MB in the beginning and 175.1MB in the end (delta: -15.3MB). Peak memory consumption was 70.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.66ms. Allocated memory is still 209.7MB. Free memory was 175.1MB in the beginning and 171.1MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.03ms. Allocated memory is still 209.7MB. Free memory was 171.1MB in the beginning and 170.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 557.88ms. Allocated memory is still 209.7MB. Free memory was 170.1MB in the beginning and 153.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 991.68ms. Allocated memory is still 209.7MB. Free memory was 153.3MB in the beginning and 107.1MB in the end (delta: 46.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 104.51ms. Allocated memory is still 209.7MB. Free memory was 107.1MB in the beginning and 104.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:12:33,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da575708-ba8f-489c-948b-671a9e5949c8/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE