./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/css2003.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-lit/css2003.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:32:28,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:32:28,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:32:28,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:32:28,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:32:28,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:32:28,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:32:28,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:32:28,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:32:28,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:32:28,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:32:28,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:32:28,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:32:28,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:32:28,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:32:28,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:32:28,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:32:28,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:32:28,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:32:28,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:32:28,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:32:28,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:32:28,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:32:28,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:32:28,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:32:28,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:32:28,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:32:28,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:32:28,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:32:28,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:32:28,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:32:28,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:32:28,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:32:28,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:32:28,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:32:28,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:32:28,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:32:29,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:32:29,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:32:29,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:32:29,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:32:29,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:32:29,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:32:29,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:32:29,068 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:32:29,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:32:29,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:32:29,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:32:29,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:32:29,070 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:32:29,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:32:29,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:32:29,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:32:29,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:32:29,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:32:29,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:32:29,074 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:32:29,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:32:29,074 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:32:29,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:32:29,075 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:32:29,075 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:32:29,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:32:29,076 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:32:29,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:32:29,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:32:29,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:32:29,077 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:32:29,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:32:29,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:32:29,078 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_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cc40df30b48f0dde21200c49a8e3c2dcaea3151eb010f51f5a34e59bc04994b [2021-11-23 01:32:29,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:32:29,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:32:29,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:32:29,435 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:32:29,437 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:32:29,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-lit/css2003.i [2021-11-23 01:32:29,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/data/3f56aa5f5/9950f2e1c87a4c569c36ac50050b99ae/FLAGdceb70b3c [2021-11-23 01:32:30,249 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:32:30,250 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/sv-benchmarks/c/loop-lit/css2003.i [2021-11-23 01:32:30,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/data/3f56aa5f5/9950f2e1c87a4c569c36ac50050b99ae/FLAGdceb70b3c [2021-11-23 01:32:30,581 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/data/3f56aa5f5/9950f2e1c87a4c569c36ac50050b99ae [2021-11-23 01:32:30,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:32:30,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:32:30,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:32:30,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:32:30,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:32:30,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:30,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6f742b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30, skipping insertion in model container [2021-11-23 01:32:30,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:30,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:32:30,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:32:30,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2021-11-23 01:32:30,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:32:30,894 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:32:30,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/sv-benchmarks/c/loop-lit/css2003.i[895,908] [2021-11-23 01:32:30,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:32:30,952 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:32:30,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30 WrapperNode [2021-11-23 01:32:30,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:32:30,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:32:30,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:32:30,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:32:30,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:30,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,004 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2021-11-23 01:32:31,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:32:31,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:32:31,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:32:31,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:32:31,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:32:31,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:32:31,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:32:31,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:32:31,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:32:30" (1/1) ... [2021-11-23 01:32:31,071 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:32:31,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:32:31,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:32:31,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:32:31,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:32:31,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:32:31,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:32:31,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:32:31,265 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:32:31,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:32:31,448 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:32:31,481 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:32:31,484 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:32:31,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:32:31 BoogieIcfgContainer [2021-11-23 01:32:31,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:32:31,489 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:32:31,489 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:32:31,502 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:32:31,503 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:32:31" (1/1) ... [2021-11-23 01:32:31,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:32:31,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:32:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:32:31,630 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:32:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:32:31,633 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:32:31,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:32:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:32:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:32:32,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:32:32,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-11-23 01:32:32,154 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-11-23 01:32:32,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:32:32,158 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:32:32,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:32:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:32:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:32:32,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:32:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-11-23 01:32:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-23 01:32:32,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:32:32,627 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2021-11-23 01:32:32,647 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:32:32,689 INFO L560 CodeCheckObserver]: Invariant with dag size 17 [2021-11-23 01:32:32,703 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2021-11-23 01:32:32,704 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:32:32,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:32:32 ImpRootNode [2021-11-23 01:32:32,705 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:32:32,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:32:32,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:32:32,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:32:32,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:32:31" (3/4) ... [2021-11-23 01:32:32,710 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:32:32,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 01:32:32,721 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 01:32:32,722 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:32:32,722 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:32:32,768 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:32:32,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:32:32,769 INFO L158 Benchmark]: Toolchain (without parser) took 2181.15ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 87.5MB in the beginning and 80.3MB in the end (delta: 7.2MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2021-11-23 01:32:32,770 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:32:32,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.54ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 87.1MB in the beginning and 122.9MB in the end (delta: -35.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:32:32,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.82ms. Allocated memory is still 148.9MB. Free memory was 122.3MB in the beginning and 121.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:32:32,772 INFO L158 Benchmark]: Boogie Preprocessor took 51.74ms. Allocated memory is still 148.9MB. Free memory was 121.1MB in the beginning and 120.2MB in the end (delta: 914.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:32:32,773 INFO L158 Benchmark]: RCFGBuilder took 428.75ms. Allocated memory is still 148.9MB. Free memory was 120.2MB in the beginning and 111.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:32:32,773 INFO L158 Benchmark]: CodeCheck took 1216.45ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 82.3MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 01:32:32,774 INFO L158 Benchmark]: Witness Printer took 62.33ms. Allocated memory is still 148.9MB. Free memory was 82.3MB in the beginning and 80.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:32:32,778 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 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 10 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((2 <= i && 1 <= i + k) && i + k <= 2) || (((0 <= k && i == j) && k <= 1) && j == 1) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (2 <= i && 1 <= i + k) && i + k <= 2 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.54ms. Allocated memory was 117.4MB in the beginning and 148.9MB in the end (delta: 31.5MB). Free memory was 87.1MB in the beginning and 122.9MB in the end (delta: -35.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.82ms. Allocated memory is still 148.9MB. Free memory was 122.3MB in the beginning and 121.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.74ms. Allocated memory is still 148.9MB. Free memory was 121.1MB in the beginning and 120.2MB in the end (delta: 914.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.75ms. Allocated memory is still 148.9MB. Free memory was 120.2MB in the beginning and 111.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1216.45ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 82.3MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 62.33ms. Allocated memory is still 148.9MB. Free memory was 82.3MB in the beginning and 80.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:32:32,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16e94068-576d-4d94-9f63-a30fa9073388/bin/ukojak-LBtLqBUTdQ/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