./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg --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 64bit --witnessprinter.graph.data.programhash 7907d012b9c764bd623ba97e3fe681984ff5e165fb3f5820b36269ce719d1dfd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 21:47:52,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 21:47:52,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 21:47:52,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 21:47:52,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 21:47:52,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 21:47:52,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 21:47:52,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 21:47:52,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 21:47:52,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 21:47:52,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 21:47:52,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 21:47:52,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 21:47:52,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 21:47:52,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 21:47:52,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 21:47:52,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 21:47:52,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 21:47:52,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 21:47:52,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 21:47:52,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 21:47:52,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 21:47:52,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 21:47:52,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 21:47:52,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 21:47:52,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 21:47:52,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 21:47:52,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 21:47:52,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 21:47:52,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 21:47:52,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 21:47:52,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 21:47:52,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 21:47:52,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 21:47:52,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 21:47:52,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 21:47:52,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 21:47:52,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 21:47:52,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 21:47:52,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 21:47:52,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 21:47:52,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/config/svcomp-Reach-64bit-Kojak_Default.epf [2022-11-21 21:47:52,810 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 21:47:52,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 21:47:52,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 21:47:52,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 21:47:52,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 21:47:52,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 21:47:52,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 21:47:52,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 21:47:52,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 21:47:52,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 21:47:52,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 21:47:52,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 21:47:52,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 21:47:52,817 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 21:47:52,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 21:47:52,818 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 21:47:52,818 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 21:47:52,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 21:47:52,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 21:47:52,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 21:47:52,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 21:47:52,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 21:47:52,819 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 21:47:52,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 21:47:52,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 21:47:52,820 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_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7907d012b9c764bd623ba97e3fe681984ff5e165fb3f5820b36269ce719d1dfd [2022-11-21 21:47:53,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 21:47:53,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 21:47:53,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 21:47:53,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 21:47:53,167 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 21:47:53,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c [2022-11-21 21:47:56,162 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 21:47:56,407 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 21:47:56,408 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c [2022-11-21 21:47:56,417 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data/01a4acf91/7f83d451a4d54e0981469680ee0e21da/FLAG8b4dbf618 [2022-11-21 21:47:56,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data/01a4acf91/7f83d451a4d54e0981469680ee0e21da [2022-11-21 21:47:56,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 21:47:56,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 21:47:56,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 21:47:56,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 21:47:56,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 21:47:56,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b3c924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56, skipping insertion in model container [2022-11-21 21:47:56,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 21:47:56,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 21:47:56,632 WARN L237 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_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c[1107,1120] [2022-11-21 21:47:56,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 21:47:56,683 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 21:47:56,692 WARN L237 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_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c[1107,1120] [2022-11-21 21:47:56,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 21:47:56,727 INFO L208 MainTranslator]: Completed translation [2022-11-21 21:47:56,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56 WrapperNode [2022-11-21 21:47:56,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 21:47:56,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 21:47:56,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 21:47:56,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 21:47:56,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,769 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2022-11-21 21:47:56,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 21:47:56,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 21:47:56,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 21:47:56,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 21:47:56,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 21:47:56,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 21:47:56,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 21:47:56,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 21:47:56,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:56" (1/1) ... [2022-11-21 21:47:56,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 21:47:56,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 [2022-11-21 21:47:56,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 21:47:56,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 21:47:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 21:47:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 21:47:57,070 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 21:47:57,073 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 21:47:57,506 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 21:47:57,525 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 21:47:57,525 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 21:47:57,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:57 BoogieIcfgContainer [2022-11-21 21:47:57,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 21:47:57,528 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 21:47:57,529 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 21:47:57,539 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 21:47:57,539 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:57" (1/1) ... [2022-11-21 21:47:57,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 21:47:57,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 21:47:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-11-21 21:47:57,606 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-11-21 21:47:57,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 21:47:57,610 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 21:47:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 21:47:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 21:47:57,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 21:47:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 21:47:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 21:47:57,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 21:47:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 21:47:58,005 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2022-11-21 21:47:58,032 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 21:47:58,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 09:47:58 ImpRootNode [2022-11-21 21:47:58,036 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 21:47:58,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 21:47:58,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 21:47:58,040 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 21:47:58,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:57" (3/4) ... [2022-11-21 21:47:58,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 21:47:58,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 21:47:58,046 INFO L158 Benchmark]: Toolchain (without parser) took 1599.88ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 89.3MB in the beginning and 110.6MB in the end (delta: -21.3MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-21 21:47:58,046 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 21:47:58,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.91ms. Allocated memory is still 138.4MB. Free memory was 88.9MB in the beginning and 77.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 21:47:58,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.48ms. Allocated memory is still 138.4MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 21:47:58,049 INFO L158 Benchmark]: Boogie Preprocessor took 26.48ms. Allocated memory is still 138.4MB. Free memory was 75.6MB in the beginning and 74.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 21:47:58,050 INFO L158 Benchmark]: RCFGBuilder took 730.53ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 74.2MB in the beginning and 127.3MB in the end (delta: -53.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2022-11-21 21:47:58,050 INFO L158 Benchmark]: CodeCheck took 507.86ms. Allocated memory is still 176.2MB. Free memory was 127.3MB in the beginning and 111.6MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 21:47:58,051 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 176.2MB. Free memory was 111.6MB in the beginning and 110.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 21:47:58,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 54, overapproximation of bitwiseAnd at line 59. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 3); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (3 - 1); [L31] const SORT_3 var_4 = 0; [L32] const SORT_1 var_13 = 1; [L33] const SORT_3 var_19 = 7; [L34] const SORT_3 var_23 = 1; [L36] SORT_1 input_2; [L38] SORT_3 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L39] SORT_3 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L41] SORT_3 init_6_arg_1 = var_4; [L42] state_5 = init_6_arg_1 [L43] SORT_3 init_8_arg_1 = var_4; [L44] state_7 = init_8_arg_1 VAL [init_6_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=7, msb_SORT_1=1, msb_SORT_3=4, state_5=0, state_7=0, var_13=1, var_19=7, var_23=1, var_4=0] [L47] input_2 = __VERIFIER_nondet_uchar() [L50] SORT_3 var_9_arg_0 = state_5; [L51] SORT_3 var_9_arg_1 = state_7; [L52] SORT_1 var_9 = var_9_arg_0 > var_9_arg_1; [L53] SORT_1 var_10_arg_0 = var_9; [L54] SORT_1 var_10 = ~var_10_arg_0; [L55] SORT_1 var_14_arg_0 = var_10; [L56] SORT_1 var_14 = ~var_14_arg_0; [L57] SORT_1 var_15_arg_0 = var_13; [L58] SORT_1 var_15_arg_1 = var_14; [L59] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L60] var_15 = var_15 & mask_SORT_1 [L61] SORT_1 bad_16_arg_0 = var_15; [L62] CALL __VERIFIER_assert(!(bad_16_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.91ms. Allocated memory is still 138.4MB. Free memory was 88.9MB in the beginning and 77.7MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.48ms. Allocated memory is still 138.4MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.48ms. Allocated memory is still 138.4MB. Free memory was 75.6MB in the beginning and 74.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 730.53ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 74.2MB in the beginning and 127.3MB in the end (delta: -53.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * CodeCheck took 507.86ms. Allocated memory is still 176.2MB. Free memory was 127.3MB in the beginning and 111.6MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 176.2MB. Free memory was 111.6MB in the beginning and 110.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 21:47:58,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/config/svcomp-Reach-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg --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 64bit --witnessprinter.graph.data.programhash 7907d012b9c764bd623ba97e3fe681984ff5e165fb3f5820b36269ce719d1dfd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 21:48:00,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 21:48:00,593 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 21:48:00,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 21:48:00,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 21:48:00,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 21:48:00,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 21:48:00,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 21:48:00,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 21:48:00,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 21:48:00,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 21:48:00,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 21:48:00,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 21:48:00,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 21:48:00,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 21:48:00,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 21:48:00,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 21:48:00,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 21:48:00,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 21:48:00,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 21:48:00,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 21:48:00,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 21:48:00,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 21:48:00,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 21:48:00,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 21:48:00,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 21:48:00,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 21:48:00,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 21:48:00,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 21:48:00,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 21:48:00,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 21:48:00,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 21:48:00,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 21:48:00,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 21:48:00,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 21:48:00,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 21:48:00,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 21:48:00,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 21:48:00,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 21:48:00,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 21:48:00,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 21:48:00,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/config/svcomp-Reach-64bit-Kojak_Bitvector.epf [2022-11-21 21:48:00,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 21:48:00,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 21:48:00,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 21:48:00,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 21:48:00,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 21:48:00,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 21:48:00,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 21:48:00,763 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 21:48:00,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 21:48:00,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 21:48:00,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 21:48:00,765 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 21:48:00,765 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 21:48:00,766 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 21:48:00,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 21:48:00,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 21:48:00,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 21:48:00,767 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 21:48:00,767 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 21:48:00,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 21:48:00,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 21:48:00,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 21:48:00,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 21:48:00,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 21:48:00,769 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-21 21:48:00,769 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 21:48:00,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 21:48:00,770 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2022-11-21 21:48:00,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 21:48:00,771 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7907d012b9c764bd623ba97e3fe681984ff5e165fb3f5820b36269ce719d1dfd [2022-11-21 21:48:01,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 21:48:01,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 21:48:01,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 21:48:01,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 21:48:01,217 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 21:48:01,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c [2022-11-21 21:48:04,468 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 21:48:04,731 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 21:48:04,734 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c [2022-11-21 21:48:04,747 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data/360edfb69/7fb1f1df006a49ff85f358d99a7c5f9a/FLAG5ee8ffc25 [2022-11-21 21:48:04,774 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/data/360edfb69/7fb1f1df006a49ff85f358d99a7c5f9a [2022-11-21 21:48:04,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 21:48:04,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 21:48:04,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 21:48:04,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 21:48:04,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 21:48:04,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:48:04" (1/1) ... [2022-11-21 21:48:04,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7e706a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:04, skipping insertion in model container [2022-11-21 21:48:04,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:48:04" (1/1) ... [2022-11-21 21:48:04,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 21:48:04,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 21:48:04,953 WARN L237 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_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c[1107,1120] [2022-11-21 21:48:04,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 21:48:05,000 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 21:48:05,012 WARN L237 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_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cav14_example.c[1107,1120] [2022-11-21 21:48:05,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 21:48:05,047 INFO L208 MainTranslator]: Completed translation [2022-11-21 21:48:05,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05 WrapperNode [2022-11-21 21:48:05,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 21:48:05,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 21:48:05,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 21:48:05,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 21:48:05,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,066 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,087 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2022-11-21 21:48:05,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 21:48:05,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 21:48:05,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 21:48:05,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 21:48:05,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 21:48:05,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 21:48:05,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 21:48:05,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 21:48:05,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 21:48:05,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 [2022-11-21 21:48:05,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 21:48:05,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 21:48:05,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 21:48:05,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 21:48:05,281 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 21:48:05,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 21:48:05,449 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 21:48:05,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 21:48:05,472 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 21:48:05,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:48:05 BoogieIcfgContainer [2022-11-21 21:48:05,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 21:48:05,476 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 21:48:05,476 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 21:48:05,485 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 21:48:05,486 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:48:05" (1/1) ... [2022-11-21 21:48:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 21:48:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 21:48:05,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2022-11-21 21:48:05,589 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2022-11-21 21:48:05,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 21:48:05,593 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 21:48:05,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 21:48:05,637 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort BitVec not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableSortSymbol.defineOrDeclare(DeclarableSortSymbol.java:79) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:196) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferAllSymbols(SmtFunctionsAndAxioms.java:156) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.CfgSmtToolkit.createFreshManagedScript(CfgSmtToolkit.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:439) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-21 21:48:05,642 INFO L158 Benchmark]: Toolchain (without parser) took 863.37ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 29.6MB in the beginning and 55.7MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 21:48:05,642 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 21:48:05,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.49ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 29.5MB in the beginning and 58.4MB in the end (delta: -29.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-21 21:48:05,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.34ms. Allocated memory is still 86.0MB. Free memory was 58.4MB in the beginning and 56.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 21:48:05,645 INFO L158 Benchmark]: Boogie Preprocessor took 27.22ms. Allocated memory is still 86.0MB. Free memory was 56.5MB in the beginning and 55.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 21:48:05,646 INFO L158 Benchmark]: RCFGBuilder took 358.87ms. Allocated memory is still 86.0MB. Free memory was 54.9MB in the beginning and 62.0MB in the end (delta: -7.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-11-21 21:48:05,647 INFO L158 Benchmark]: CodeCheck took 164.74ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 55.7MB in the end (delta: 6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 21:48:05,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: SMTLIBException: Sort BitVec not declared de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: SMTLIBException: Sort BitVec not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:385) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 60.8MB. Free memory is still 39.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.49ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 29.5MB in the beginning and 58.4MB in the end (delta: -29.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.34ms. Allocated memory is still 86.0MB. Free memory was 58.4MB in the beginning and 56.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.22ms. Allocated memory is still 86.0MB. Free memory was 56.5MB in the beginning and 55.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.87ms. Allocated memory is still 86.0MB. Free memory was 54.9MB in the beginning and 62.0MB in the end (delta: -7.1MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * CodeCheck took 164.74ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 55.7MB in the end (delta: 6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-21 21:48:05,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_210c2d54-d7e4-45c5-a2c1-34b25d2f57db/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort BitVec not declared