./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY --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 aea35f6fe28f2a249b678370b7d0543ee4b994af ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 03:43:12,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:43:12,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:43:12,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:43:12,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:43:12,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:43:12,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:43:12,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:43:12,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:43:12,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:43:12,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:43:12,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:43:12,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:43:12,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:43:12,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:43:12,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:43:12,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:43:12,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:43:12,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:43:12,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:43:12,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:43:12,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:43:12,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:43:12,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:43:12,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:43:12,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:43:12,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:43:12,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:43:12,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:43:12,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:43:12,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:43:12,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:43:12,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:43:12,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:43:12,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:43:12,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:43:12,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:43:12,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:43:12,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:43:12,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:43:12,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:43:12,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-13 03:43:12,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:43:12,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:43:12,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:43:12,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:43:12,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:43:12,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:43:12,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:43:12,934 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 03:43:12,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:43:12,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 03:43:12,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:43:12,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:43:12,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:43:12,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:43:12,947 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 03:43:12,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:43:12,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:43:12,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:43:12,948 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:43:12,948 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:43:12,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:43:12,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:43:12,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:43:12,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:43:12,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:43:12,950 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:43:12,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:43:12,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:43:12,950 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_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aea35f6fe28f2a249b678370b7d0543ee4b994af [2021-10-13 03:43:13,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:43:13,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:43:13,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:43:13,249 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:43:13,250 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:43:13,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2021-10-13 03:43:13,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/data/d41097109/9af7cde7956a4867876aa15b6cea6a20/FLAG31de56403 [2021-10-13 03:43:13,791 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:43:13,794 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/sv-benchmarks/c/recursive-simple/id2_b5_o10.c [2021-10-13 03:43:13,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/data/d41097109/9af7cde7956a4867876aa15b6cea6a20/FLAG31de56403 [2021-10-13 03:43:14,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/data/d41097109/9af7cde7956a4867876aa15b6cea6a20 [2021-10-13 03:43:14,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:43:14,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:43:14,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:43:14,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:43:14,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:43:14,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa03945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14, skipping insertion in model container [2021-10-13 03:43:14,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:43:14,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:43:14,403 WARN L228 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_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/sv-benchmarks/c/recursive-simple/id2_b5_o10.c[773,786] [2021-10-13 03:43:14,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:43:14,417 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:43:14,433 WARN L228 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_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/sv-benchmarks/c/recursive-simple/id2_b5_o10.c[773,786] [2021-10-13 03:43:14,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:43:14,447 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:43:14,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14 WrapperNode [2021-10-13 03:43:14,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:43:14,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:43:14,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:43:14,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:43:14,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:43:14,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:43:14,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:43:14,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:43:14,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:43:14,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:43:14,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:43:14,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:43:14,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:43:14,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:43:14,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:43:14,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:43:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 03:43:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 03:43:14,594 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2021-10-13 03:43:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2021-10-13 03:43:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:43:14,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:43:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-13 03:43:14,595 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-13 03:43:14,956 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:43:14,956 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 03:43:14,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:43:14 BoogieIcfgContainer [2021-10-13 03:43:14,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:43:14,960 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:43:14,961 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:43:14,972 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:43:14,972 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:43:14" (1/1) ... [2021-10-13 03:43:14,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:43:15,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:15,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2021-10-13 03:43:15,021 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-13 03:43:15,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 03:43:15,026 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:43:15,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:43:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:43:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:43:15,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:15,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-10-13 03:43:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-10-13 03:43:15,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 03:43:15,263 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:43:15,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:43:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:43:15,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 03:43:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-10-13 03:43:15,854 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-10-13 03:43:15,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 03:43:15,856 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:43:15,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:43:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:43:16,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 03:43:16,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:16,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2021-10-13 03:43:16,893 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2021-10-13 03:43:16,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 03:43:16,894 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:43:16,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:43:16,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:43:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 03:43:18,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 47 states and 59 transitions. [2021-10-13 03:43:18,494 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2021-10-13 03:43:18,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 03:43:18,496 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:43:18,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:43:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:43:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 03:43:19,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 50 states and 63 transitions. [2021-10-13 03:43:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2021-10-13 03:43:19,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 03:43:19,593 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:43:19,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:43:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:43:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-13 03:43:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:21,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 53 states and 69 transitions. [2021-10-13 03:43:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2021-10-13 03:43:21,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 03:43:21,855 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:43:21,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:43:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:43:22,552 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-13 03:43:24,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:43:24,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 44 states and 55 transitions. [2021-10-13 03:43:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 55 transitions. [2021-10-13 03:43:24,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 03:43:24,026 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-13 03:43:24,032 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-13 03:43:24,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:43:24 ImpRootNode [2021-10-13 03:43:24,417 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:43:24,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:43:24,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:43:24,418 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:43:24,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:43:14" (3/4) ... [2021-10-13 03:43:24,422 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 03:43:24,436 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2021-10-13 03:43:24,437 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-10-13 03:43:24,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-13 03:43:24,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 03:43:24,445 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 03:43:24,446 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 03:43:24,515 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:43:24,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:43:24,518 INFO L168 Benchmark]: Toolchain (without parser) took 10357.83 ms. Allocated memory was 98.6 MB in the beginning and 159.4 MB in the end (delta: 60.8 MB). Free memory was 64.9 MB in the beginning and 51.2 MB in the end (delta: 13.7 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. [2021-10-13 03:43:24,519 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 67.9 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:43:24,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.25 ms. Allocated memory is still 98.6 MB. Free memory was 64.9 MB in the beginning and 75.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:43:24,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.36 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 73.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:43:24,521 INFO L168 Benchmark]: Boogie Preprocessor took 19.22 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:43:24,522 INFO L168 Benchmark]: RCFGBuilder took 458.52 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 61.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 03:43:24,523 INFO L168 Benchmark]: CodeCheck took 9457.02 ms. Allocated memory was 98.6 MB in the beginning and 159.4 MB in the end (delta: 60.8 MB). Free memory was 61.7 MB in the beginning and 54.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 69.8 MB. Max. memory is 16.1 GB. [2021-10-13 03:43:24,523 INFO L168 Benchmark]: Witness Printer took 97.82 ms. Allocated memory is still 159.4 MB. Free memory was 54.2 MB in the beginning and 51.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:43:24,526 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9033.5ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1600 SDtfs, 608 SDslu, 960 SDs, 0 SdLazy, 3852 SolverSat, 1888 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1167.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1318 GetRequests, 1138 SyntacticMatches, 36 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7930 ImplicationChecksByTransitivity, 7168.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 21.8ms SsaConstructionTime, 242.9ms SatisfiabilityAnalysisTime, 2937.9ms InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 798 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 68/114 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 27]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory was 67.9 MB in the beginning and 67.9 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.25 ms. Allocated memory is still 98.6 MB. Free memory was 64.9 MB in the beginning and 75.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.36 ms. Allocated memory is still 98.6 MB. Free memory was 75.2 MB in the beginning and 73.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.22 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 458.52 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 61.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 9457.02 ms. Allocated memory was 98.6 MB in the beginning and 159.4 MB in the end (delta: 60.8 MB). Free memory was 61.7 MB in the beginning and 54.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 69.8 MB. Max. memory is 16.1 GB. * Witness Printer took 97.82 ms. Allocated memory is still 159.4 MB. Free memory was 54.2 MB in the beginning and 51.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-13 03:43:24,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_721e4530-eb1b-49f7-b4fb-38dfc876b2c7/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...