./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg --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 8106e37143b92ceafd8a00e093a2990e704d8dd2f3d8b356fd5038a10e039c48 --- 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-b5237d8 [2022-11-21 22:43:49,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 22:43:49,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 22:43:49,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 22:43:49,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 22:43:49,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 22:43:49,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 22:43:49,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 22:43:49,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 22:43:49,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 22:43:49,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 22:43:49,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 22:43:49,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 22:43:49,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 22:43:49,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 22:43:49,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 22:43:49,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 22:43:49,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 22:43:49,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 22:43:49,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 22:43:49,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 22:43:49,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 22:43:49,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 22:43:49,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 22:43:49,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 22:43:49,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 22:43:49,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 22:43:49,122 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 22:43:49,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 22:43:49,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 22:43:49,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 22:43:49,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 22:43:49,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 22:43:49,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 22:43:49,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 22:43:49,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 22:43:49,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 22:43:49,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 22:43:49,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 22:43:49,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 22:43:49,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 22:43:49,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 22:43:49,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 22:43:49,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 22:43:49,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 22:43:49,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 22:43:49,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 22:43:49,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 22:43:49,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 22:43:49,155 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 22:43:49,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 22:43:49,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 22:43:49,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 22:43:49,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 22:43:49,156 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 22:43:49,157 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 22:43:49,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 22:43:49,157 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 22:43:49,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 22:43:49,157 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 22:43:49,158 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 22:43:49,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 22:43:49,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:43:49,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 22:43:49,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 22:43:49,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 22:43:49,159 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 22:43:49,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 22:43:49,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 22:43:49,159 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_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8106e37143b92ceafd8a00e093a2990e704d8dd2f3d8b356fd5038a10e039c48 [2022-11-21 22:43:49,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 22:43:49,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 22:43:49,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 22:43:49,418 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 22:43:49,418 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 22:43:49,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_good.i [2022-11-21 22:43:52,566 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 22:43:53,016 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 22:43:53,016 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_good.i [2022-11-21 22:43:53,052 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/data/effafa99a/9776d54d660b485cb50eca0773c551e4/FLAG0abbe7967 [2022-11-21 22:43:53,067 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/data/effafa99a/9776d54d660b485cb50eca0773c551e4 [2022-11-21 22:43:53,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 22:43:53,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 22:43:53,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 22:43:53,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 22:43:53,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 22:43:53,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:43:53" (1/1) ... [2022-11-21 22:43:53,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@abf8d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:53, skipping insertion in model container [2022-11-21 22:43:53,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:43:53" (1/1) ... [2022-11-21 22:43:53,088 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 22:43:53,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 22:43:53,589 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 22:43:54,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:43:54,168 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 22:43:54,187 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 22:43:54,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 22:43:54,421 INFO L208 MainTranslator]: Completed translation [2022-11-21 22:43:54,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54 WrapperNode [2022-11-21 22:43:54,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 22:43:54,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 22:43:54,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 22:43:54,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 22:43:54,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,478 INFO L138 Inliner]: procedures = 505, calls = 71, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 78 [2022-11-21 22:43:54,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 22:43:54,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 22:43:54,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 22:43:54,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 22:43:54,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,504 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 22:43:54,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 22:43:54,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 22:43:54,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 22:43:54,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:43:54" (1/1) ... [2022-11-21 22:43:54,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 22:43:54,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/z3 [2022-11-21 22:43:54,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 22:43:54,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 22:43:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-21 22:43:54,626 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-21 22:43:54,626 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 22:43:54,627 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 22:43:54,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 22:43:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 22:43:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 22:43:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 22:43:54,628 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-21 22:43:54,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-21 22:43:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 22:43:54,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 22:43:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 22:43:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 22:43:54,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 22:43:54,844 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 22:43:54,846 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 22:43:55,011 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 22:43:55,042 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 22:43:55,043 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 22:43:55,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:43:55 BoogieIcfgContainer [2022-11-21 22:43:55,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 22:43:55,046 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 22:43:55,046 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 22:43:55,058 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 22:43:55,058 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:43:55" (1/1) ... [2022-11-21 22:43:55,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 22:43:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:55,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 35 states and 42 transitions. [2022-11-21 22:43:55,160 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-21 22:43:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 22:43:55,164 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:55,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:43:55,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 47 transitions. [2022-11-21 22:43:55,848 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-21 22:43:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 22:43:55,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:55,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:43:56,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:56,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 53 transitions. [2022-11-21 22:43:56,427 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2022-11-21 22:43:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 22:43:56,428 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:56,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:43:57,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:57,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 44 states and 56 transitions. [2022-11-21 22:43:57,068 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-11-21 22:43:57,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 22:43:57,072 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:57,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:43:57,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 49 states and 64 transitions. [2022-11-21 22:43:57,759 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2022-11-21 22:43:57,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 22:43:57,760 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:57,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:43:58,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:58,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 51 states and 66 transitions. [2022-11-21 22:43:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2022-11-21 22:43:58,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-21 22:43:58,074 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:58,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 22:43:59,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:59,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 55 states and 73 transitions. [2022-11-21 22:43:59,102 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2022-11-21 22:43:59,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 22:43:59,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:59,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 22:43:59,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:43:59,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 54 states and 72 transitions. [2022-11-21 22:43:59,378 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2022-11-21 22:43:59,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 22:43:59,379 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:43:59,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:43:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:43:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 22:44:00,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:00,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 45 states and 60 transitions. [2022-11-21 22:44:00,168 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2022-11-21 22:44:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-21 22:44:00,169 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 22:44:00,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 22:44:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 22:44:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 22:44:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 22:44:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 40 states and 52 transitions. [2022-11-21 22:44:00,590 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2022-11-21 22:44:00,593 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 22:44:00,593 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2022-11-21 22:44:00,601 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 22:44:00,736 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 22:44:00,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 10:44:00 ImpRootNode [2022-11-21 22:44:00,742 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 22:44:00,743 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 22:44:00,743 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 22:44:00,743 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 22:44:00,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:43:55" (3/4) ... [2022-11-21 22:44:00,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 22:44:00,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 22:44:00,758 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-21 22:44:00,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2022-11-21 22:44:00,762 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-21 22:44:00,763 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 22:44:00,763 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 22:44:00,763 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 22:44:00,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 22:44:00,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 22:44:00,809 INFO L158 Benchmark]: Toolchain (without parser) took 7737.96ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 88.7MB in the beginning and 94.0MB in the end (delta: -5.3MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2022-11-21 22:44:00,810 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 22:44:00,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1349.58ms. Allocated memory was 121.6MB in the beginning and 155.2MB in the end (delta: 33.6MB). Free memory was 88.7MB in the beginning and 107.5MB in the end (delta: -18.7MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2022-11-21 22:44:00,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.67ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 104.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:44:00,811 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 102.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:44:00,811 INFO L158 Benchmark]: RCFGBuilder took 536.36ms. Allocated memory is still 155.2MB. Free memory was 102.5MB in the beginning and 86.5MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 22:44:00,812 INFO L158 Benchmark]: CodeCheck took 5695.72ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 86.5MB in the beginning and 97.1MB in the end (delta: -10.6MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-11-21 22:44:00,812 INFO L158 Benchmark]: Witness Printer took 66.10ms. Allocated memory is still 186.6MB. Free memory was 97.1MB in the beginning and 94.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 22:44:00,815 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 4 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 509 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 89 mSDsluCounter, 351 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 312 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 819 IncrementalHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 312 mSolverCounterUnsat, 291 mSDtfsCounter, 819 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1480 GetRequests, 1377 SyntacticMatches, 9 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2687 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 169 ConstructedInterpolants, 0 QuantifiedInterpolants, 339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 22/22 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: 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 - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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: 1605]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1349.58ms. Allocated memory was 121.6MB in the beginning and 155.2MB in the end (delta: 33.6MB). Free memory was 88.7MB in the beginning and 107.5MB in the end (delta: -18.7MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.67ms. Allocated memory is still 155.2MB. Free memory was 107.5MB in the beginning and 104.0MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 155.2MB. Free memory was 104.0MB in the beginning and 102.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.36ms. Allocated memory is still 155.2MB. Free memory was 102.5MB in the beginning and 86.5MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5695.72ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 86.5MB in the beginning and 97.1MB in the end (delta: -10.6MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * Witness Printer took 66.10ms. Allocated memory is still 186.6MB. Free memory was 97.1MB in the beginning and 94.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 22:44:00,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10f434e3-c041-40bd-8829-f38585e83f85/bin/ukojak-jW3SillKbg/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