./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --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 cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:03:31,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:03:31,171 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 01:03:31,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:03:31,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 01:03:31,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:03:31,217 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:03:31,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 01:03:31,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:03:31,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:03:31,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:03:31,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:03:31,222 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:03:31,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:03:31,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:03:31,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:03:31,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:03:31,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:03:31,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:03:31,230 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:03:31,231 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:03:31,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:03:31,232 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:03:31,232 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 01:03:31,233 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 01:03:31,233 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 01:03:31,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:03:31,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 01:03:31,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:03:31,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:03:31,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:03:31,238 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 01:03:31,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:03:31,239 INFO L153 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_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab0e4c46b209be0775136f8613c1e239028ef0244464c17ac04057ecb0a0b33 [2024-11-09 01:03:31,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:03:31,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:03:31,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:03:31,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:03:31,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:03:31,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i Unable to find full path for "g++" [2024-11-09 01:03:33,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:03:34,126 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:03:34,127 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i [2024-11-09 01:03:34,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/data/6b559b639/184395bc1ff946b487574579c9fe1cc8/FLAG721517cf7 [2024-11-09 01:03:34,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/data/6b559b639/184395bc1ff946b487574579c9fe1cc8 [2024-11-09 01:03:34,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:03:34,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:03:34,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:03:34,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:03:34,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:03:34,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162a84e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34, skipping insertion in model container [2024-11-09 01:03:34,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:03:34,727 WARN L250 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_fe37d227-a55b-4261-98ab-173016b2acfe/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2024-11-09 01:03:34,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:03:34,751 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:03:34,800 WARN L250 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_fe37d227-a55b-4261-98ab-173016b2acfe/sv-benchmarks/c/list-simple/dll2n_update_all_reverse.i[24473,24486] [2024-11-09 01:03:34,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:03:34,834 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:03:34,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34 WrapperNode [2024-11-09 01:03:34,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:03:34,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:03:34,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:03:34,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:03:34,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,881 INFO L138 Inliner]: procedures = 126, calls = 27, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-11-09 01:03:34,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:03:34,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:03:34,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:03:34,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:03:34,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,917 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:03:34,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:03:34,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:03:34,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:03:34,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:03:34" (1/1) ... [2024-11-09 01:03:34,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 01:03:34,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 01:03:34,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 01:03:34,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 01:03:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2024-11-09 01:03:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2024-11-09 01:03:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:03:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:03:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:03:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:03:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:03:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:03:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:03:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:03:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:03:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:03:35,129 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:03:35,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:03:35,153 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2024-11-09 01:03:35,365 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-09 01:03:35,365 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:03:35,447 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:03:35,447 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:03:35,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:03:35 BoogieIcfgContainer [2024-11-09 01:03:35,448 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:03:35,449 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 01:03:35,449 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 01:03:35,460 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 01:03:35,461 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:03:35" (1/1) ... [2024-11-09 01:03:35,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:03:35,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:35,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 29 states and 42 transitions. [2024-11-09 01:03:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2024-11-09 01:03:35,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 01:03:35,535 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 01:03:35,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:03:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:03:35,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:03:35,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:35,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2024-11-09 01:03:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2024-11-09 01:03:35,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 01:03:35,905 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 01:03:35,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:03:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:03:36,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 01:03:36,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:36,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2024-11-09 01:03:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2024-11-09 01:03:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 01:03:36,045 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 01:03:36,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:03:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:03:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:03:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2024-11-09 01:03:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2024-11-09 01:03:36,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 01:03:36,740 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 01:03:36,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:03:36,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:03:36,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:03:36,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:36,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 43 transitions. [2024-11-09 01:03:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2024-11-09 01:03:36,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 01:03:36,883 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 01:03:36,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:03:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:03:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 01:03:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:37,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 38 states and 55 transitions. [2024-11-09 01:03:37,412 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 55 transitions. [2024-11-09 01:03:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 01:03:37,418 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 01:03:37,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:03:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:03:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 01:03:37,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:37,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2024-11-09 01:03:37,583 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2024-11-09 01:03:37,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 01:03:37,584 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 01:03:37,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:03:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:03:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 01:03:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 01:03:37,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2024-11-09 01:03:37,780 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2024-11-09 01:03:37,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 01:03:37,781 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2024-11-09 01:03:37,790 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-09 01:03:37,847 INFO L77 FloydHoareUtils]: At program point L573(line 573) the Hoare annotation is: true [2024-11-09 01:03:37,847 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 572 574) the Hoare annotation is: true [2024-11-09 01:03:37,848 INFO L75 FloydHoareUtils]: For program point myexitEXIT(lines 572 574) no Hoare annotation was computed. [2024-11-09 01:03:37,848 INFO L77 FloydHoareUtils]: At program point L589(lines 589 591) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,849 INFO L77 FloydHoareUtils]: At program point L589-1(lines 589 591) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,849 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 624 643) the Hoare annotation is: true [2024-11-09 01:03:37,849 INFO L77 FloydHoareUtils]: At program point L590(line 590) the Hoare annotation is: true [2024-11-09 01:03:37,849 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 01:03:37,850 INFO L75 FloydHoareUtils]: For program point L633-1(lines 633 638) no Hoare annotation was computed. [2024-11-09 01:03:37,850 INFO L77 FloydHoareUtils]: At program point L633-3(lines 633 638) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~i~0#1|) [2024-11-09 01:03:37,851 INFO L77 FloydHoareUtils]: At program point L633-4(lines 633 638) the Hoare annotation is: true [2024-11-09 01:03:37,851 INFO L77 FloydHoareUtils]: At program point L618-1(lines 618 621) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (< 0 |ULTIMATE.start_dll_update_at_~index#1|)) [2024-11-09 01:03:37,851 INFO L77 FloydHoareUtils]: At program point L618-3(lines 618 621) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,851 INFO L77 FloydHoareUtils]: At program point L618-4(lines 618 621) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,853 INFO L75 FloydHoareUtils]: For program point L635(lines 635 637) no Hoare annotation was computed. [2024-11-09 01:03:37,853 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 641) no Hoare annotation was computed. [2024-11-09 01:03:37,853 INFO L75 FloydHoareUtils]: For program point L611-1(lines 611 614) no Hoare annotation was computed. [2024-11-09 01:03:37,853 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 01:03:37,854 INFO L75 FloydHoareUtils]: For program point L611-3(lines 611 614) no Hoare annotation was computed. [2024-11-09 01:03:37,854 INFO L75 FloydHoareUtils]: For program point L611-4(lines 611 614) no Hoare annotation was computed. [2024-11-09 01:03:37,854 INFO L77 FloydHoareUtils]: At program point L603(lines 603 609) the Hoare annotation is: true [2024-11-09 01:03:37,855 INFO L77 FloydHoareUtils]: At program point L587-1(lines 587 600) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (< 0 |ULTIMATE.start_dll_create_~len#1|)) [2024-11-09 01:03:37,856 INFO L77 FloydHoareUtils]: At program point L587-3(lines 587 600) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,856 INFO L77 FloydHoareUtils]: At program point L587-4(lines 587 600) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,856 INFO L77 FloydHoareUtils]: At program point L604-1(lines 604 608) the Hoare annotation is: true [2024-11-09 01:03:37,856 INFO L77 FloydHoareUtils]: At program point L604-3(lines 604 608) the Hoare annotation is: true [2024-11-09 01:03:37,856 INFO L75 FloydHoareUtils]: For program point main_ERROR#1(line 641) no Hoare annotation was computed. [2024-11-09 01:03:37,856 INFO L77 FloydHoareUtils]: At program point L629-1(lines 629 632) the Hoare annotation is: (and (<= 2 |ULTIMATE.start_main_~len~0#1|) (< 0 (+ |ULTIMATE.start_main_~i~0#1| 1))) [2024-11-09 01:03:37,857 INFO L77 FloydHoareUtils]: At program point L629-3(lines 629 632) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,857 INFO L77 FloydHoareUtils]: At program point L629-4(lines 629 632) the Hoare annotation is: (<= 2 |ULTIMATE.start_main_~len~0#1|) [2024-11-09 01:03:37,871 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~len~0 [2024-11-09 01:03:37,880 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 01:03:37,880 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 01:03:37,881 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 01:03:37,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 01:03:37 ImpRootNode [2024-11-09 01:03:37,882 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 01:03:37,883 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:03:37,883 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:03:37,884 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:03:37,884 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:03:35" (3/4) ... [2024-11-09 01:03:37,887 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 01:03:37,893 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2024-11-09 01:03:37,900 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-09 01:03:37,901 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 01:03:37,901 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 01:03:37,902 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 01:03:38,029 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 01:03:38,030 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 01:03:38,030 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:03:38,031 INFO L158 Benchmark]: Toolchain (without parser) took 3868.44ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 89.8MB in the beginning and 90.4MB in the end (delta: -585.8kB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2024-11-09 01:03:38,032 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 132.1MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:03:38,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.70ms. Allocated memory is still 132.1MB. Free memory was 89.4MB in the beginning and 69.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 01:03:38,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.01ms. Allocated memory is still 132.1MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:03:38,033 INFO L158 Benchmark]: Boogie Preprocessor took 31.04ms. Allocated memory is still 132.1MB. Free memory was 67.2MB in the beginning and 65.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:03:38,034 INFO L158 Benchmark]: RCFGBuilder took 530.01ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 65.6MB in the beginning and 147.8MB in the end (delta: -82.2MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-09 01:03:38,034 INFO L158 Benchmark]: CodeCheck took 2433.78ms. Allocated memory is still 180.4MB. Free memory was 147.8MB in the beginning and 96.7MB in the end (delta: 51.1MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-09 01:03:38,035 INFO L158 Benchmark]: Witness Printer took 147.29ms. Allocated memory is still 180.4MB. Free memory was 95.6MB in the beginning and 90.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 01:03:38,037 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 172 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 407 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 144 mSDtfsCounter, 407 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 893 GetRequests, 833 SyntacticMatches, 20 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 9/9 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: 641]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 633]: Loop Invariant Derived loop invariant: (1 <= i) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: (2 <= len) - InvariantResult [Line: 587]: Location Invariant Derived location invariant: (2 <= len) - InvariantResult [Line: 629]: Loop Invariant Derived loop invariant: (2 <= len) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 132.1MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.70ms. Allocated memory is still 132.1MB. Free memory was 89.4MB in the beginning and 69.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.01ms. Allocated memory is still 132.1MB. Free memory was 69.3MB in the beginning and 67.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.04ms. Allocated memory is still 132.1MB. Free memory was 67.2MB in the beginning and 65.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.01ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 65.6MB in the beginning and 147.8MB in the end (delta: -82.2MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * CodeCheck took 2433.78ms. Allocated memory is still 180.4MB. Free memory was 147.8MB in the beginning and 96.7MB in the end (delta: 51.1MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Witness Printer took 147.29ms. Allocated memory is still 180.4MB. Free memory was 95.6MB in the beginning and 90.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~len~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID RESULT: Ultimate proved your program to be correct! [2024-11-09 01:03:38,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe37d227-a55b-4261-98ab-173016b2acfe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE