./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_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_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/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_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/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_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/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 c858a780c010209d58fa53c783530a531c891a89707dc4ee8f0cc3bfea8b5411 --- 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 17:04:29,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:04:29,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:04:29,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:04:29,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:04:29,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:04:29,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:04:29,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:04:29,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:04:29,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:04:29,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:04:29,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:04:29,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:04:29,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:04:29,695 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:04:29,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:04:29,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:04:29,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:04:29,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:04:29,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:04:29,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:04:29,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:04:29,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:04:29,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:04:29,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:04:29,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:04:29,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:04:29,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:04:29,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:04:29,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:04:29,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:04:29,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:04:29,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:04:29,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:04:29,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:04:29,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:04:29,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:04:29,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:04:29,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:04:29,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:04:29,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:04:29,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:04:29,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:04:29,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:04:29,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:04:29,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:04:29,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:04:29,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:04:29,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:04:29,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:04:29,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:04:29,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:04:29,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:04:29,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:04:29,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:04:29,751 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:04:29,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:04:29,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:04:29,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:04:29,752 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:04:29,752 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:04:29,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:04:29,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:04:29,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:04:29,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:04:29,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:04:29,754 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:04:29,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:04:29,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:04:29,754 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_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c858a780c010209d58fa53c783530a531c891a89707dc4ee8f0cc3bfea8b5411 [2022-11-20 17:04:30,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:04:30,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:04:30,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:04:30,121 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:04:30,121 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:04:30,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_good.i [2022-11-20 17:04:33,155 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:04:33,602 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:04:33,608 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_good.i [2022-11-20 17:04:33,632 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/data/fa55af07c/56d519c91099446896de090876a8da06/FLAG2d6ba12bc [2022-11-20 17:04:33,655 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/data/fa55af07c/56d519c91099446896de090876a8da06 [2022-11-20 17:04:33,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:04:33,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:04:33,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:04:33,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:04:33,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:04:33,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:04:33" (1/1) ... [2022-11-20 17:04:33,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a764e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:33, skipping insertion in model container [2022-11-20 17:04:33,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:04:33" (1/1) ... [2022-11-20 17:04:33,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:04:33,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:04:34,122 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:04:34,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:04:34,690 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:04:34,722 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 17:04:34,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:04:34,972 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:04:34,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34 WrapperNode [2022-11-20 17:04:34,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:04:34,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:04:34,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:04:34,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:04:34,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,035 INFO L138 Inliner]: procedures = 508, calls = 73, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 79 [2022-11-20 17:04:35,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:04:35,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:04:35,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:04:35,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:04:35,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:04:35,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:04:35,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:04:35,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:04:35,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:04:34" (1/1) ... [2022-11-20 17:04:35,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:04:35,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:04:35,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:04:35,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:04:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 17:04:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 17:04:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 17:04:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 17:04:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 17:04:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:04:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 17:04:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:04:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:04:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:04:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:04:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 17:04:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:04:35,328 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:04:35,343 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:04:35,594 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:04:35,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:04:35,653 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 17:04:35,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:04:35 BoogieIcfgContainer [2022-11-20 17:04:35,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:04:35,675 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:04:35,675 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:04:35,685 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:04:35,685 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:04:35" (1/1) ... [2022-11-20 17:04:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:04:35,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:04:35,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-11-20 17:04:35,776 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-20 17:04:35,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 17:04:35,781 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:04:35,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:04:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:04:36,126 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 17:04:36,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:04:36,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-11-20 17:04:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-20 17:04:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 17:04:36,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:04:36,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:04:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:04:36,340 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 17:04:36,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:04:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-11-20 17:04:36,415 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-20 17:04:36,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 17:04:36,416 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:04:36,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:04:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:04:36,585 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 17:04:36,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:04:36,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2022-11-20 17:04:36,681 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-20 17:04:36,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 17:04:36,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:04:36,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:04:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:04:36,888 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 17:04:36,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:04:36,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2022-11-20 17:04:36,992 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-11-20 17:04:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 17:04:36,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:04:36,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:04:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:04:37,139 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 17:04:37,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:04:37,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 28 transitions. [2022-11-20 17:04:37,216 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-20 17:04:37,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:04:37,217 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-11-20 17:04:37,226 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:04:37,269 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:04:37,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:04:37 ImpRootNode [2022-11-20 17:04:37,275 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:04:37,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:04:37,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:04:37,276 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:04:37,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:04:35" (3/4) ... [2022-11-20 17:04:37,288 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:04:37,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 17:04:37,300 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 17:04:37,307 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-20 17:04:37,308 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-20 17:04:37,308 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 17:04:37,308 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:04:37,369 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:04:37,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:04:37,371 INFO L158 Benchmark]: Toolchain (without parser) took 3708.99ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 131.0MB in the beginning and 150.2MB in the end (delta: -19.2MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2022-11-20 17:04:37,371 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 121.6MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:04:37,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1306.79ms. Allocated memory is still 159.4MB. Free memory was 130.9MB in the beginning and 120.6MB in the end (delta: 10.3MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2022-11-20 17:04:37,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.98ms. Allocated memory is still 159.4MB. Free memory was 120.6MB in the beginning and 117.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:04:37,372 INFO L158 Benchmark]: Boogie Preprocessor took 52.04ms. Allocated memory is still 159.4MB. Free memory was 117.3MB in the beginning and 115.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:04:37,373 INFO L158 Benchmark]: RCFGBuilder took 585.14ms. Allocated memory is still 159.4MB. Free memory was 115.8MB in the beginning and 99.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:04:37,373 INFO L158 Benchmark]: CodeCheck took 1599.93ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 99.6MB in the beginning and 154.3MB in the end (delta: -54.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:04:37,374 INFO L158 Benchmark]: Witness Printer took 94.03ms. Allocated memory is still 192.9MB. Free memory was 154.3MB in the beginning and 150.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 17:04:37,376 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: 1.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 67 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 444 GetRequests, 419 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1619]: 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: 1584]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 121.6MB. Free memory is still 90.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1306.79ms. Allocated memory is still 159.4MB. Free memory was 130.9MB in the beginning and 120.6MB in the end (delta: 10.3MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.98ms. Allocated memory is still 159.4MB. Free memory was 120.6MB in the beginning and 117.3MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.04ms. Allocated memory is still 159.4MB. Free memory was 117.3MB in the beginning and 115.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.14ms. Allocated memory is still 159.4MB. Free memory was 115.8MB in the beginning and 99.6MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1599.93ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 99.6MB in the beginning and 154.3MB in the end (delta: -54.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 94.03ms. Allocated memory is still 192.9MB. Free memory was 154.3MB in the beginning and 150.2MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:04:37,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cc5303f-fbef-49be-aa24-6e1e3c7b2daf/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