./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI --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 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:48:52,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:48:52,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:48:52,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:48:52,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:48:52,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:48:52,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:48:52,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:48:52,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:48:52,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:48:52,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:48:52,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:48:52,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:48:52,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:48:52,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:48:52,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:48:52,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:48:52,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:48:52,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:48:52,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:48:52,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:48:52,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:48:52,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:48:52,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:48:52,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:48:52,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:48:52,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:48:52,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:48:52,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:48:52,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:48:52,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:48:52,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:48:52,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:48:52,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:48:52,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:48:52,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:48:52,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:48:52,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:48:52,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:48:52,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:48:52,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:48:52,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:48:52,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:48:52,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:48:52,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:48:52,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:48:52,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:48:52,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:48:52,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:48:52,358 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:48:52,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:48:52,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:48:52,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:48:52,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:48:52,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:48:52,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:48:52,361 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:48:52,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:48:52,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:48:52,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:48:52,362 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:48:52,362 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:48:52,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:48:52,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:48:52,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:48:52,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:48:52,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:48:52,363 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:48:52,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:48:52,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:48:52,364 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_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d [2021-10-29 03:48:52,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:48:52,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:48:52,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:48:52,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:48:52,706 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:48:52,707 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2021-10-29 03:48:52,783 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/data/52a36a073/503f11bae10c4e5ebd269f43991b0a72/FLAG0b3559062 [2021-10-29 03:48:53,216 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:48:53,217 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2021-10-29 03:48:53,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/data/52a36a073/503f11bae10c4e5ebd269f43991b0a72/FLAG0b3559062 [2021-10-29 03:48:53,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/data/52a36a073/503f11bae10c4e5ebd269f43991b0a72 [2021-10-29 03:48:53,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:48:53,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:48:53,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:48:53,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:48:53,632 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:48:53,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e38e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53, skipping insertion in model container [2021-10-29 03:48:53,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:48:53,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:48:53,831 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_59e9b814-6148-4fa7-9431-bd935889f54a/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2021-10-29 03:48:53,845 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_59e9b814-6148-4fa7-9431-bd935889f54a/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2021-10-29 03:48:53,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:48:53,860 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:48:53,875 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_59e9b814-6148-4fa7-9431-bd935889f54a/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2021-10-29 03:48:53,877 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_59e9b814-6148-4fa7-9431-bd935889f54a/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2021-10-29 03:48:53,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:48:53,894 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:48:53,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53 WrapperNode [2021-10-29 03:48:53,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:48:53,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:48:53,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:48:53,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:48:53,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:48:53,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:48:53,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:48:53,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:48:53,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:48:53,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:48:53,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:48:53,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:48:53,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:48:53" (1/1) ... [2021-10-29 03:48:53,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:48:53,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:48:54,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:48:54,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:48:54,048 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-10-29 03:48:54,049 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-10-29 03:48:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:48:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:48:54,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:48:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2021-10-29 03:48:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2021-10-29 03:48:54,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:48:54,248 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:48:54,249 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-29 03:48:54,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:48:54 BoogieIcfgContainer [2021-10-29 03:48:54,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:48:54,262 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:48:54,262 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:48:54,272 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:48:54,273 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:48:54" (1/1) ... [2021-10-29 03:48:54,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:48:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:48:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2021-10-29 03:48:54,354 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-29 03:48:54,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:48:54,359 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:48:54,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:48:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:48:54,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:48:54,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:48:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 20 transitions. [2021-10-29 03:48:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-29 03:48:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 03:48:54,737 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:48:54,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:48:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:54,760 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:48:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:54,826 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:48:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:48:54,851 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-10-29 03:48:54,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:48:54 ImpRootNode [2021-10-29 03:48:54,878 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:48:54,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:48:54,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:48:54,879 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:48:54,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:48:54" (3/4) ... [2021-10-29 03:48:54,882 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:48:54,925 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:48:54,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:48:54,927 INFO L168 Benchmark]: Toolchain (without parser) took 1298.89 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 44.9 MB in the beginning and 40.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:54,928 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:48:54,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.16 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 44.7 MB in the beginning and 75.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:54,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:54,931 INFO L168 Benchmark]: Boogie Preprocessor took 28.98 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 72.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:48:54,932 INFO L168 Benchmark]: RCFGBuilder took 298.11 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 62.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:54,932 INFO L168 Benchmark]: CodeCheck took 616.73 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 42.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:54,933 INFO L168 Benchmark]: Witness Printer took 46.12 ms. Allocated memory is still 100.7 MB. Free memory was 42.7 MB in the beginning and 40.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:48:54,938 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 22 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] CALL f(4) VAL [\old(n)=4] [L9] COND FALSE !(n<3) [L10] n-- VAL [\old(n)=4, n=3] [L11] CALL f2(n) VAL [\old(n)=3] [L16] COND FALSE !(n<3) [L17] n-- VAL [\old(n)=3, n=2] [L18] CALL f(n) VAL [\old(n)=2] [L9] COND TRUE n<3 VAL [\old(n)=2, n=2] [L18] RET f(n) VAL [\old(n)=3, n=2] [L19] reach_error() VAL [\old(n)=3, n=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 81.8 MB. Free memory was 51.7 MB in the beginning and 51.6 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 267.16 ms. Allocated memory was 81.8 MB in the beginning and 100.7 MB in the end (delta: 18.9 MB). Free memory was 44.7 MB in the beginning and 75.0 MB in the end (delta: -30.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 100.7 MB. Free memory was 75.0 MB in the beginning and 73.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.98 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 72.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 298.11 ms. Allocated memory is still 100.7 MB. Free memory was 72.6 MB in the beginning and 62.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 616.73 ms. Allocated memory is still 100.7 MB. Free memory was 62.9 MB in the beginning and 42.7 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 46.12 ms. Allocated memory is still 100.7 MB. Free memory was 42.7 MB in the beginning and 40.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:48:54,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e9b814-6148-4fa7-9431-bd935889f54a/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...