./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/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_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/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 32bit --witnessprinter.graph.data.programhash 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c --- 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 23:47:15,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:47:15,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:47:15,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:47:15,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:47:15,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:47:15,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:47:15,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:47:15,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:47:15,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:47:15,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:47:15,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:47:15,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:47:15,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:47:15,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:47:15,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:47:15,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:47:15,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:47:15,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:47:15,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:47:15,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:47:15,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:47:15,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:47:15,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:47:15,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:47:15,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:47:15,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:47:15,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:47:15,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:47:15,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:47:15,775 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:47:15,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:47:15,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:47:15,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:47:15,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:47:15,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:47:15,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:47:15,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:47:15,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:47:15,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:47:15,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:47:15,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-21 23:47:15,828 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:47:15,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:47:15,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:47:15,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:47:15,830 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:47:15,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:47:15,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:47:15,831 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 23:47:15,831 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:47:15,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:47:15,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 23:47:15,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:47:15,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:47:15,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:47:15,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:47:15,833 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:47:15,833 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 23:47:15,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:47:15,834 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:47:15,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:47:15,834 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:47:15,834 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:47:15,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:47:15,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:47:15,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:47:15,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:47:15,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:47:15,835 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:47:15,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:47:15,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:47:15,836 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_d7c04a75-47e9-4c92-90b8-7a4999de3923/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c [2022-11-21 23:47:16,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:47:16,168 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:47:16,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:47:16,173 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:47:16,174 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:47:16,175 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2022-11-21 23:47:19,245 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:47:19,576 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:47:19,577 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2022-11-21 23:47:19,594 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/data/5de6cbd6a/58def9709d7f47808d52a72e21950064/FLAGfe20a2002 [2022-11-21 23:47:19,620 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/data/5de6cbd6a/58def9709d7f47808d52a72e21950064 [2022-11-21 23:47:19,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:47:19,624 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:47:19,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:47:19,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:47:19,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:47:19,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:47:19" (1/1) ... [2022-11-21 23:47:19,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d744448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:19, skipping insertion in model container [2022-11-21 23:47:19,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:47:19" (1/1) ... [2022-11-21 23:47:19,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:47:19,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:47:20,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:47:20,071 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:47:20,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:47:20,172 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:47:20,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20 WrapperNode [2022-11-21 23:47:20,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:47:20,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:47:20,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:47:20,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:47:20,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,233 INFO L138 Inliner]: procedures = 168, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 85 [2022-11-21 23:47:20,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:47:20,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:47:20,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:47:20,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:47:20,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,261 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:47:20,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:47:20,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:47:20,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:47:20,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:47:20,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:47:20,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:47:20,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:47:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 23:47:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2022-11-21 23:47:20,352 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2022-11-21 23:47:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 23:47:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:47:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 23:47:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:47:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 23:47:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:47:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:47:20,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:47:20,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:47:20,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:47:20,802 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:47:20,915 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:47:20,926 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 23:47:20,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:47:20 BoogieIcfgContainer [2022-11-21 23:47:20,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:47:20,931 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:47:20,931 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:47:20,940 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:47:20,941 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:47:20" (1/1) ... [2022-11-21 23:47:20,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:47:21,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:21,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-11-21 23:47:21,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-21 23:47:21,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 23:47:21,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:47:21,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:47:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:47:21,429 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 23:47:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2022-11-21 23:47:21,531 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-11-21 23:47:21,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:47:21,532 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:47:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:47:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:47:21,634 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 23:47:21,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:21,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2022-11-21 23:47:21,649 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2022-11-21 23:47:21,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:47:21,649 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:47:21,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:47:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:47:21,755 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 23:47:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:21,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-11-21 23:47:21,771 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-21 23:47:21,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 23:47:21,773 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:47:21,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:47:21,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:47:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 23:47:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:21,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2022-11-21 23:47:21,970 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-11-21 23:47:21,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 23:47:21,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:47:21,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:47:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:47:22,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 23:47:22,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:22,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2022-11-21 23:47:22,044 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2022-11-21 23:47:22,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 23:47:22,044 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:47:22,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:47:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:47:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:47:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2022-11-21 23:47:22,446 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-21 23:47:22,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 23:47:22,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:47:22,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:47:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:47:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:47:22,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:47:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-11-21 23:47:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-11-21 23:47:22,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 23:47:22,550 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-11-21 23:47:22,558 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-21 23:47:22,599 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-21 23:47:22,608 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:47:22,609 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2022-11-21 23:47:22,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:47:22 ImpRootNode [2022-11-21 23:47:22,610 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:47:22,610 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:47:22,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:47:22,611 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:47:22,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:47:20" (3/4) ... [2022-11-21 23:47:22,614 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 23:47:22,620 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_input [2022-11-21 23:47:22,624 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-11-21 23:47:22,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 23:47:22,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 23:47:22,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 23:47:22,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 23:47:22,668 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:47:22,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:47:22,669 INFO L158 Benchmark]: Toolchain (without parser) took 3045.06ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 108.5MB in the beginning and 120.2MB in the end (delta: -11.8MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-11-21 23:47:22,669 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:47:22,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.79ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 89.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 23:47:22,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.33ms. Allocated memory is still 155.2MB. Free memory was 89.0MB in the beginning and 86.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:47:22,671 INFO L158 Benchmark]: Boogie Preprocessor took 29.89ms. Allocated memory is still 155.2MB. Free memory was 86.5MB in the beginning and 85.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:47:22,671 INFO L158 Benchmark]: RCFGBuilder took 664.80ms. Allocated memory is still 155.2MB. Free memory was 85.1MB in the beginning and 117.5MB in the end (delta: -32.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 23:47:22,671 INFO L158 Benchmark]: CodeCheck took 1678.79ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 117.5MB in the beginning and 123.4MB in the end (delta: -5.9MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-11-21 23:47:22,672 INFO L158 Benchmark]: Witness Printer took 58.20ms. Allocated memory is still 197.1MB. Free memory was 123.4MB in the beginning and 120.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 23:47:22,674 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 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 282 IncrementalHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 49 mSDtfsCounter, 282 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 585 GetRequests, 558 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 8/18 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: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 692]: Loop Invariant Derived loop invariant: 1 <= i || i == 0 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 694]: Loop Invariant Derived loop invariant: (i <= 1 && 1 <= i) || i == 0 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory was 53.6MB in the beginning and 53.5MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.79ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 89.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.33ms. Allocated memory is still 155.2MB. Free memory was 89.0MB in the beginning and 86.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.89ms. Allocated memory is still 155.2MB. Free memory was 86.5MB in the beginning and 85.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 664.80ms. Allocated memory is still 155.2MB. Free memory was 85.1MB in the beginning and 117.5MB in the end (delta: -32.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1678.79ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 117.5MB in the beginning and 123.4MB in the end (delta: -5.9MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Witness Printer took 58.20ms. Allocated memory is still 197.1MB. Free memory was 123.4MB in the beginning and 120.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 23:47:22,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c04a75-47e9-4c92-90b8-7a4999de3923/bin/ukojak-jW3SillKbg/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