./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_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/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_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/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_7c5ea63b-6844-4f69-a54f-ec0463e41198/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_7c5ea63b-6844-4f69-a54f-ec0463e41198/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 23:35:28,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:35:28,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:35:28,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:35:28,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:35:28,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:35:28,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:35:28,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:35:28,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:35:28,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:35:28,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:35:28,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:35:28,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:35:28,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:35:28,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:35:28,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:35:28,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:35:28,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:35:28,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:35:28,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:35:28,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:35:28,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:35:28,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:35:28,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:35:28,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:35:28,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:35:28,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:35:28,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:35:28,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:35:28,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:35:28,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:35:28,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:35:28,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:35:28,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:35:28,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:35:28,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:35:28,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:35:28,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:35:28,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:35:28,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:35:28,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:35:28,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-21 23:35:28,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:35:28,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:35:28,971 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:35:28,971 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:35:28,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:35:28,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:35:28,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:35:28,973 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 23:35:28,973 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:35:28,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:35:28,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 23:35:28,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:35:28,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:35:28,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:35:28,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:35:28,976 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:35:28,976 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 23:35:28,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:35:28,976 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:35:28,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:35:28,977 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:35:28,977 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:35:28,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:35:28,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:35:28,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:35:28,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:35:28,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:35:28,978 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:35:28,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:35:28,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:35:28,980 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_7c5ea63b-6844-4f69-a54f-ec0463e41198/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c [2022-11-21 23:35:29,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:35:29,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:35:29,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:35:29,358 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:35:29,359 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:35:29,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2022-11-21 23:35:32,469 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:35:32,796 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:35:32,797 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2022-11-21 23:35:32,810 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/data/e4fef62c1/a1d2d38677c0411a94b6eaf9851432e7/FLAGbdc44def1 [2022-11-21 23:35:32,829 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/data/e4fef62c1/a1d2d38677c0411a94b6eaf9851432e7 [2022-11-21 23:35:32,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:35:32,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:35:32,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:35:32,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:35:32,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:35:32,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:35:32" (1/1) ... [2022-11-21 23:35:32,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cb4e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:32, skipping insertion in model container [2022-11-21 23:35:32,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:35:32" (1/1) ... [2022-11-21 23:35:32,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:35:32,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:35:33,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:35:33,277 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:35:33,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:35:33,378 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:35:33,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33 WrapperNode [2022-11-21 23:35:33,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:35:33,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:35:33,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:35:33,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:35:33,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,427 INFO L138 Inliner]: procedures = 168, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 85 [2022-11-21 23:35:33,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:35:33,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:35:33,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:35:33,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:35:33,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,456 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:35:33,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:35:33,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:35:33,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:35:33,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:35:33" (1/1) ... [2022-11-21 23:35:33,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:35:33,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:35:33,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:35:33,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:35:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 23:35:33,540 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2022-11-21 23:35:33,541 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2022-11-21 23:35:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 23:35:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:35:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 23:35:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:35:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 23:35:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:35:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:35:33,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:35:33,657 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:35:33,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:35:33,852 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:35:34,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:35:34,072 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 23:35:34,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:35:34 BoogieIcfgContainer [2022-11-21 23:35:34,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:35:34,076 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:35:34,076 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:35:34,089 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:35:34,089 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:35:34" (1/1) ... [2022-11-21 23:35:34,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:35:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2022-11-21 23:35:34,169 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-21 23:35:34,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 23:35:34,174 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:35:34,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:35:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:35:34,520 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 23:35:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:34,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2022-11-21 23:35:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2022-11-21 23:35:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:35:34,613 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:35:34,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:35:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:35:34,763 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 23:35:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2022-11-21 23:35:34,790 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2022-11-21 23:35:34,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 23:35:34,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:35:34,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:35:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:35:34,896 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 23:35:34,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-11-21 23:35:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-21 23:35:34,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 23:35:34,912 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:35:34,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:35:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:35:34,990 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 23:35:35,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2022-11-21 23:35:35,095 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-11-21 23:35:35,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 23:35:35,098 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:35:35,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:35:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:35:35,191 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 23:35:35,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2022-11-21 23:35:35,211 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2022-11-21 23:35:35,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 23:35:35,212 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:35:35,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:35:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:35:35,297 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 23:35:35,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:35,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2022-11-21 23:35:35,577 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-21 23:35:35,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 23:35:35,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:35:35,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:35:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:35:35,693 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 23:35:35,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:35:35,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2022-11-21 23:35:35,734 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-11-21 23:35:35,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 23:35:35,736 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-11-21 23:35:35,745 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-21 23:35:35,784 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-21 23:35:35,799 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:35:35,799 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2022-11-21 23:35:35,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:35:35 ImpRootNode [2022-11-21 23:35:35,802 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:35:35,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:35:35,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:35:35,803 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:35:35,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:35:34" (3/4) ... [2022-11-21 23:35:35,821 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 23:35:35,827 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parse_input [2022-11-21 23:35:35,831 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2022-11-21 23:35:35,831 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 23:35:35,832 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-21 23:35:35,832 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 23:35:35,832 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 23:35:35,871 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:35:35,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:35:35,872 INFO L158 Benchmark]: Toolchain (without parser) took 3038.62ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 54.9MB in the end (delta: 62.9MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2022-11-21 23:35:35,873 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:35:35,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.87ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 98.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 23:35:35,874 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.35ms. Allocated memory is still 153.1MB. Free memory was 98.0MB in the beginning and 95.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:35:35,874 INFO L158 Benchmark]: Boogie Preprocessor took 31.13ms. Allocated memory is still 153.1MB. Free memory was 95.8MB in the beginning and 94.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:35:35,875 INFO L158 Benchmark]: RCFGBuilder took 614.72ms. Allocated memory is still 153.1MB. Free memory was 94.3MB in the beginning and 74.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 23:35:35,876 INFO L158 Benchmark]: CodeCheck took 1726.12ms. Allocated memory is still 153.1MB. Free memory was 74.6MB in the beginning and 57.7MB in the end (delta: 16.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-11-21 23:35:35,876 INFO L158 Benchmark]: Witness Printer took 68.52ms. Allocated memory is still 153.1MB. Free memory was 57.7MB in the beginning and 54.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:35:35,880 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, 0.6s 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 0.20ms. Allocated memory is still 119.5MB. Free memory was 88.3MB in the beginning and 88.3MB in the end (delta: 75.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.87ms. Allocated memory is still 153.1MB. Free memory was 117.3MB in the beginning and 98.0MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.35ms. Allocated memory is still 153.1MB. Free memory was 98.0MB in the beginning and 95.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.13ms. Allocated memory is still 153.1MB. Free memory was 95.8MB in the beginning and 94.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 614.72ms. Allocated memory is still 153.1MB. Free memory was 94.3MB in the beginning and 74.6MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1726.12ms. Allocated memory is still 153.1MB. Free memory was 74.6MB in the beginning and 57.7MB in the end (delta: 16.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 68.52ms. Allocated memory is still 153.1MB. Free memory was 57.7MB in the beginning and 54.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 23:35:35,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c5ea63b-6844-4f69-a54f-ec0463e41198/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