./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4 --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 2f6757eb709782bb024624a1987823c9688a4318677b6cdba95547546d74d281 --- 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-2329fc7 [2022-12-14 19:51:34,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 19:51:34,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 19:51:34,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 19:51:34,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 19:51:34,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 19:51:34,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 19:51:34,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 19:51:34,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 19:51:34,699 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 19:51:34,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 19:51:34,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 19:51:34,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 19:51:34,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 19:51:34,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 19:51:34,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 19:51:34,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 19:51:34,706 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 19:51:34,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 19:51:34,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 19:51:34,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 19:51:34,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 19:51:34,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 19:51:34,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 19:51:34,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 19:51:34,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 19:51:34,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 19:51:34,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 19:51:34,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 19:51:34,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 19:51:34,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 19:51:34,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 19:51:34,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 19:51:34,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 19:51:34,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 19:51:34,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 19:51:34,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 19:51:34,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 19:51:34,730 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 19:51:34,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 19:51:34,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 19:51:34,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 19:51:34,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 19:51:34,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 19:51:34,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 19:51:34,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 19:51:34,758 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 19:51:34,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 19:51:34,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 19:51:34,759 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 19:51:34,759 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 19:51:34,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 19:51:34,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 19:51:34,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 19:51:34,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 19:51:34,760 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 19:51:34,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 19:51:34,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 19:51:34,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 19:51:34,761 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 19:51:34,761 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 19:51:34,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 19:51:34,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:51:34,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 19:51:34,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 19:51:34,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 19:51:34,763 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 19:51:34,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 19:51:34,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 19:51:34,763 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_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f6757eb709782bb024624a1987823c9688a4318677b6cdba95547546d74d281 [2022-12-14 19:51:34,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 19:51:34,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 19:51:34,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 19:51:34,978 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 19:51:34,978 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 19:51:34,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_good.i [2022-12-14 19:51:37,586 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 19:51:37,787 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 19:51:37,787 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_64_good.i [2022-12-14 19:51:37,800 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/data/ca585bafe/5dcca65558264ac1ae02e2f0484ff5c2/FLAG23556dbdd [2022-12-14 19:51:37,812 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/data/ca585bafe/5dcca65558264ac1ae02e2f0484ff5c2 [2022-12-14 19:51:37,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 19:51:37,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 19:51:37,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 19:51:37,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 19:51:37,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 19:51:37,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:51:37" (1/1) ... [2022-12-14 19:51:37,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700aa666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:37, skipping insertion in model container [2022-12-14 19:51:37,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:51:37" (1/1) ... [2022-12-14 19:51:37,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 19:51:37,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 19:51:38,102 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 19:51:38,382 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 19:51:38,386 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:51:38,388 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:51:38,389 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:51:38,390 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:51:38,411 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 19:51:38,415 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 19:51:38,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:51:38,428 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 19:51:38,443 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 19:51:38,473 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 19:51:38,475 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:51:38,476 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:51:38,477 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:51:38,478 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:51:38,481 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 19:51:38,482 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 19:51:38,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:51:38,592 INFO L208 MainTranslator]: Completed translation [2022-12-14 19:51:38,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38 WrapperNode [2022-12-14 19:51:38,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 19:51:38,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 19:51:38,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 19:51:38,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 19:51:38,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,629 INFO L138 Inliner]: procedures = 504, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 83 [2022-12-14 19:51:38,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 19:51:38,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 19:51:38,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 19:51:38,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 19:51:38,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 19:51:38,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 19:51:38,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 19:51:38,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 19:51:38,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:51:38" (1/1) ... [2022-12-14 19:51:38,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:51:38,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 19:51:38,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 19:51:38,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 19:51:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 19:51:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 19:51:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 19:51:38,712 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 19:51:38,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 19:51:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 19:51:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 19:51:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 19:51:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 19:51:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 19:51:38,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 19:51:38,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 19:51:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 19:51:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 19:51:38,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 19:51:38,835 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 19:51:38,837 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 19:51:39,029 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 19:51:39,073 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 19:51:39,074 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 19:51:39,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:39 BoogieIcfgContainer [2022-12-14 19:51:39,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 19:51:39,078 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 19:51:39,078 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 19:51:39,087 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 19:51:39,088 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:39" (1/1) ... [2022-12-14 19:51:39,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 19:51:39,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:51:39,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-12-14 19:51:39,154 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-12-14 19:51:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 19:51:39,157 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:51:39,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:51:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:51:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:51:39,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:51:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-12-14 19:51:39,473 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-12-14 19:51:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:51:39,473 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:51:39,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:51:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:51:39,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:51:39,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:51:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-12-14 19:51:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-12-14 19:51:39,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 19:51:39,640 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:51:39,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:51:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:51:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:51:39,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:51:39,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2022-12-14 19:51:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-12-14 19:51:39,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 19:51:39,727 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:51:39,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:51:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:51:39,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 19:51:40,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:51:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2022-12-14 19:51:40,027 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-12-14 19:51:40,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 19:51:40,028 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:51:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:51:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:51:40,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 19:51:40,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:51:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 23 states and 28 transitions. [2022-12-14 19:51:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-12-14 19:51:40,351 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 19:51:40,351 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-12-14 19:51:40,356 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 19:51:40,385 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 19:51:40,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 07:51:40 ImpRootNode [2022-12-14 19:51:40,390 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 19:51:40,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 19:51:40,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 19:51:40,391 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 19:51:40,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:51:39" (3/4) ... [2022-12-14 19:51:40,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 19:51:40,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 19:51:40,400 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 19:51:40,404 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 19:51:40,404 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 19:51:40,405 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 19:51:40,405 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 19:51:40,447 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 19:51:40,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 19:51:40,448 INFO L158 Benchmark]: Toolchain (without parser) took 2633.17ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 90.4MB in the beginning and 58.5MB in the end (delta: 31.9MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2022-12-14 19:51:40,448 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 132.1MB. Free memory was 96.9MB in the beginning and 96.8MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:51:40,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 776.56ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 90.1MB in the beginning and 114.3MB in the end (delta: -24.2MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2022-12-14 19:51:40,449 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.68ms. Allocated memory is still 165.7MB. Free memory was 114.3MB in the beginning and 111.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:51:40,450 INFO L158 Benchmark]: Boogie Preprocessor took 18.89ms. Allocated memory is still 165.7MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:51:40,450 INFO L158 Benchmark]: RCFGBuilder took 427.51ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 91.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 19:51:40,450 INFO L158 Benchmark]: CodeCheck took 1312.14ms. Allocated memory is still 165.7MB. Free memory was 91.2MB in the beginning and 61.6MB in the end (delta: 29.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-12-14 19:51:40,451 INFO L158 Benchmark]: Witness Printer took 57.06ms. Allocated memory is still 165.7MB. Free memory was 61.6MB in the beginning and 58.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 19:51:40,453 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: 1.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 76 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 420 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 125 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: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: 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 0.22ms. Allocated memory is still 132.1MB. Free memory was 96.9MB in the beginning and 96.8MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 776.56ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 90.1MB in the beginning and 114.3MB in the end (delta: -24.2MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.68ms. Allocated memory is still 165.7MB. Free memory was 114.3MB in the beginning and 111.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.89ms. Allocated memory is still 165.7MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.51ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 91.2MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1312.14ms. Allocated memory is still 165.7MB. Free memory was 91.2MB in the beginning and 61.6MB in the end (delta: 29.6MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 57.06ms. Allocated memory is still 165.7MB. Free memory was 61.6MB in the beginning and 58.5MB 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! [2022-12-14 19:51:40,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7be2adb-030a-4b38-b9d8-a3373030c4ac/bin/ukojak-rkRKPMF4O4/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