./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark09_conjunctive.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_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/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_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark09_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/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_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/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 64cd7ac5eb0a9d67f170f7116fe70bfc33ede6496f7f1decfe8a4115f59f37aa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:48:07,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:48:07,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:48:07,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:48:07,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:48:07,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:48:07,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:48:07,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:48:07,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:48:07,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:48:07,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:48:07,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:48:07,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:48:07,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:48:07,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:48:07,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:48:07,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:48:07,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:48:07,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:48:07,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:48:07,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:48:07,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:48:07,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:48:07,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:48:07,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:48:07,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:48:07,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:48:07,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:48:07,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:48:07,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:48:07,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:48:07,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:48:07,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:48:07,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:48:07,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:48:07,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:48:07,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:48:07,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:48:07,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:48:07,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:48:07,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:48:07,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:48:07,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:48:07,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:48:07,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:48:07,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:48:07,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:48:07,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:48:07,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:48:07,277 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:48:07,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:48:07,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:48:07,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:48:07,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:48:07,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:48:07,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:48:07,279 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:48:07,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:48:07,280 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:48:07,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:48:07,280 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:48:07,280 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:48:07,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:48:07,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:48:07,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:48:07,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:48:07,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:48:07,282 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:48:07,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:48:07,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:48:07,283 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_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64cd7ac5eb0a9d67f170f7116fe70bfc33ede6496f7f1decfe8a4115f59f37aa [2021-11-23 00:48:07,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:48:07,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:48:07,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:48:07,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:48:07,620 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:48:07,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-zilu/benchmark09_conjunctive.i [2021-11-23 00:48:07,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/data/c51007ee8/9ef680552d374837b9fe6df748ff9363/FLAGaf9b7ca06 [2021-11-23 00:48:08,208 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:48:08,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/sv-benchmarks/c/loop-zilu/benchmark09_conjunctive.i [2021-11-23 00:48:08,220 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/data/c51007ee8/9ef680552d374837b9fe6df748ff9363/FLAGaf9b7ca06 [2021-11-23 00:48:08,575 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/data/c51007ee8/9ef680552d374837b9fe6df748ff9363 [2021-11-23 00:48:08,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:48:08,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:48:08,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:48:08,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:48:08,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:48:08,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de1f2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08, skipping insertion in model container [2021-11-23 00:48:08,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:48:08,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:48:08,795 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_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/sv-benchmarks/c/loop-zilu/benchmark09_conjunctive.i[873,886] [2021-11-23 00:48:08,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:48:08,817 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:48:08,829 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_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/sv-benchmarks/c/loop-zilu/benchmark09_conjunctive.i[873,886] [2021-11-23 00:48:08,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:48:08,845 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:48:08,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08 WrapperNode [2021-11-23 00:48:08,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:48:08,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:48:08,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:48:08,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:48:08,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,879 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2021-11-23 00:48:08,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:48:08,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:48:08,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:48:08,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:48:08,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:48:08,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:48:08,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:48:08,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:48:08,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:48:08" (1/1) ... [2021-11-23 00:48:08,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:48:08,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:48:08,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:48:08,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:48:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:48:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:48:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:48:08,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:48:09,042 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:48:09,044 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:48:09,214 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:48:09,228 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:48:09,234 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:48:09,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:48:09 BoogieIcfgContainer [2021-11-23 00:48:09,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:48:09,238 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:48:09,238 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:48:09,249 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:48:09,250 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:48:09" (1/1) ... [2021-11-23 00:48:09,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:48:09,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:48:09,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 11 states and 14 transitions. [2021-11-23 00:48:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-11-23 00:48:09,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 00:48:09,355 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:48:09,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:09,638 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 00:48:09,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:48:09,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2021-11-23 00:48:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-23 00:48:09,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:48:09,797 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:48:09,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:09,937 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 00:48:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:48:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2021-11-23 00:48:10,147 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2021-11-23 00:48:10,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 00:48:10,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:48:10,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:48:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:48:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-11-23 00:48:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-23 00:48:10,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 00:48:10,447 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:48:10,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:48:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:48:10,522 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 00:48:10,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:48:10,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2021-11-23 00:48:10,631 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2021-11-23 00:48:10,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:48:10,631 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2021-11-23 00:48:10,640 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 00:48:10,663 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2021-11-23 00:48:10,672 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 00:48:10,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:48:10 ImpRootNode [2021-11-23 00:48:10,673 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:48:10,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:48:10,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:48:10,674 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:48:10,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:48:09" (3/4) ... [2021-11-23 00:48:10,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:48:10,686 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 00:48:10,687 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 00:48:10,687 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:48:10,687 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:48:10,722 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:48:10,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:48:10,723 INFO L158 Benchmark]: Toolchain (without parser) took 2140.82ms. Allocated memory is still 104.9MB. Free memory was 70.1MB in the beginning and 67.3MB in the end (delta: 2.9MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2021-11-23 00:48:10,723 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory was 79.2MB in the beginning and 79.2MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:48:10,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.16ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 80.3MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:48:10,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.04ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 78.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:48:10,725 INFO L158 Benchmark]: Boogie Preprocessor took 18.95ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 77.7MB in the end (delta: 948.4kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 00:48:10,726 INFO L158 Benchmark]: RCFGBuilder took 337.42ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 68.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:48:10,726 INFO L158 Benchmark]: CodeCheck took 1435.78ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 69.4MB in the end (delta: -1.6MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2021-11-23 00:48:10,727 INFO L158 Benchmark]: Witness Printer took 48.04ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:48:10,730 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, 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, 50 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 12 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 204 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 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: 16]: 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: 23]: Loop Invariant Derived loop invariant: (x <= y && y <= x) && 0 < y + 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * 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 79.2MB in the beginning and 79.2MB in the end (delta: 31.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.16ms. Allocated memory is still 104.9MB. Free memory was 69.9MB in the beginning and 80.3MB in the end (delta: -10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.04ms. Allocated memory is still 104.9MB. Free memory was 80.3MB in the beginning and 78.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.95ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 77.7MB in the end (delta: 948.4kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 337.42ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 68.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1435.78ms. Allocated memory is still 104.9MB. Free memory was 67.7MB in the beginning and 69.4MB in the end (delta: -1.6MB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 48.04ms. Allocated memory is still 104.9MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:48:10,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e5cd9b0-cc00-4741-bcbc-09bc0ff750b0/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