./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd4602f1a95f60cf2d782cdd09ffbf4f13da5d7831c02d1076d087dbb1c87f94 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:08,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:08,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:34:08,080 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:08,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:08,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:08,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:08,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:08,107 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:08,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:08,108 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:08,109 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:08,109 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:08,110 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:08,110 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:08,111 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:08,111 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:08,112 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:08,112 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:08,113 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:08,114 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:08,114 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:08,115 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:08,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:08,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:08,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:08,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:08,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:08,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:08,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:08,119 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:08,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:08,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:08,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:08,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:08,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:08,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:08,122 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:08,123 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:08,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:08,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:08,124 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:08,125 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:08,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:08,125 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd4602f1a95f60cf2d782cdd09ffbf4f13da5d7831c02d1076d087dbb1c87f94 [2023-11-23 20:34:08,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:08,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:08,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:08,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:08,397 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:08,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-23 20:34:11,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:12,451 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:12,452 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-23 20:34:12,522 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/data/e36240d13/cf260e0969544c5284d428f75f11a4d4/FLAG9a9cf3401 [2023-11-23 20:34:12,548 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/data/e36240d13/cf260e0969544c5284d428f75f11a4d4 [2023-11-23 20:34:12,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:12,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:12,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:12,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:12,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:12,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:12" (1/1) ... [2023-11-23 20:34:12,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a77e1fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:12, skipping insertion in model container [2023-11-23 20:34:12,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:12" (1/1) ... [2023-11-23 20:34:12,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:15,666 WARN L240 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_81ca64b6-5ed1-400d-8667-8edd4e20a741/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[260495,260508] [2023-11-23 20:34:15,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:15,826 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:16,374 WARN L240 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_81ca64b6-5ed1-400d-8667-8edd4e20a741/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[260495,260508] [2023-11-23 20:34:16,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:16,608 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:34:16,618 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:16,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16 WrapperNode [2023-11-23 20:34:16,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:16,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:16,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:16,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:16,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:16,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,252 INFO L138 Inliner]: procedures = 251, calls = 2681, calls flagged for inlining = 118, calls inlined = 113, statements flattened = 6964 [2023-11-23 20:34:17,253 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:17,254 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:17,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:17,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:17,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,339 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,791 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:17,793 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:17,793 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:17,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:17,795 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (1/1) ... [2023-11-23 20:34:17,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:17,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:17,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:17,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81ca64b6-5ed1-400d-8667-8edd4e20a741/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2023-11-23 20:34:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2023-11-23 20:34:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure con_copy_unimap [2023-11-23 20:34:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure con_copy_unimap [2023-11-23 20:34:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_exit [2023-11-23 20:34:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_exit [2023-11-23 20:34:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2023-11-23 20:34:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2023-11-23 20:34:17,883 INFO L130 BoogieDeclarations]: Found specification of procedure con_is_bound [2023-11-23 20:34:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure con_is_bound [2023-11-23 20:34:17,883 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove [2023-11-23 20:34:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove [2023-11-23 20:34:17,883 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_display [2023-11-23 20:34:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_display [2023-11-23 20:34:17,884 INFO L130 BoogieDeclarations]: Found specification of procedure do_fbcon_takeover [2023-11-23 20:34:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fbcon_takeover [2023-11-23 20:34:17,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:34:17,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:34:17,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:34:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:34:17,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:34:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:34:17,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:34:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:34:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_release_oldinfo [2023-11-23 20:34:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_release_oldinfo [2023-11-23 20:34:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memcpyw [2023-11-23 20:34:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memcpyw [2023-11-23 20:34:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-23 20:34:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-23 20:34:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2023-11-23 20:34:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2023-11-23 20:34:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_font [2023-11-23 20:34:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_font [2023-11-23 20:34:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 20:34:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 20:34:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putcs [2023-11-23 20:34:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putcs [2023-11-23 20:34:17,888 INFO L130 BoogieDeclarations]: Found specification of procedure get_color [2023-11-23 20:34:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure get_color [2023-11-23 20:34:17,889 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memsetw [2023-11-23 20:34:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memsetw [2023-11-23 20:34:17,889 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_con_driver [2023-11-23 20:34:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_con_driver [2023-11-23 20:34:17,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 20:34:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 20:34:17,890 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_font [2023-11-23 20:34:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_font [2023-11-23 20:34:17,890 INFO L130 BoogieDeclarations]: Found specification of procedure real_y [2023-11-23 20:34:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure real_y [2023-11-23 20:34:17,891 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_update_softback [2023-11-23 20:34:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_update_softback [2023-11-23 20:34:17,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:34:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:34:17,891 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure update_region [2023-11-23 20:34:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure update_region [2023-11-23 20:34:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure fb_flashcursor [2023-11-23 20:34:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_flashcursor [2023-11-23 20:34:17,892 INFO L130 BoogieDeclarations]: Found specification of procedure find_font [2023-11-23 20:34:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure find_font [2023-11-23 20:34:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:34:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2023-11-23 20:34:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2023-11-23 20:34:17,893 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 20:34:17,894 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_disp [2023-11-23 20:34:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_disp [2023-11-23 20:34:17,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:34:17,894 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear_margins [2023-11-23 20:34:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear_margins [2023-11-23 20:34:17,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:34:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:34:17,895 INFO L130 BoogieDeclarations]: Found specification of procedure display_to_var [2023-11-23 20:34:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure display_to_var [2023-11-23 20:34:17,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:34:17,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:34:17,895 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:34:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:34:17,896 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~X~int~TO~VOID [2023-11-23 20:34:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~X~int~TO~VOID [2023-11-23 20:34:17,896 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 20:34:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 20:34:17,897 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 20:34:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 20:34:17,897 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:34:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:34:17,897 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2023-11-23 20:34:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2023-11-23 20:34:17,898 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_del_cursor_timer [2023-11-23 20:34:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_del_cursor_timer [2023-11-23 20:34:17,898 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_move [2023-11-23 20:34:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_move [2023-11-23 20:34:17,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:34:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 20:34:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 20:34:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:34:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_is_inactive [2023-11-23 20:34:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_is_inactive [2023-11-23 20:34:17,899 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear [2023-11-23 20:34:17,900 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear [2023-11-23 20:34:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_add_cursor_timer [2023-11-23 20:34:17,900 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_add_cursor_timer [2023-11-23 20:34:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:17,900 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2023-11-23 20:34:17,900 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2023-11-23 20:34:17,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:34:17,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:34:17,901 INFO L130 BoogieDeclarations]: Found specification of procedure set_blitting_type [2023-11-23 20:34:17,901 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blitting_type [2023-11-23 20:34:17,901 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2023-11-23 20:34:17,902 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2023-11-23 20:34:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:34:17,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:34:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_palette [2023-11-23 20:34:17,902 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_palette [2023-11-23 20:34:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure set_con2fb_map [2023-11-23 20:34:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure set_con2fb_map [2023-11-23 20:34:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2023-11-23 20:34:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2023-11-23 20:34:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure console_conditional_schedule [2023-11-23 20:34:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure console_conditional_schedule [2023-11-23 20:34:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_copy_font [2023-11-23 20:34:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_copy_font [2023-11-23 20:34:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_do_set_font [2023-11-23 20:34:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_do_set_font [2023-11-23 20:34:17,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:34:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:34:17,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:34:17,905 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_acquire_newinfo [2023-11-23 20:34:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_acquire_newinfo [2023-11-23 20:34:17,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 20:34:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 20:34:17,906 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2023-11-23 20:34:17,906 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2023-11-23 20:34:17,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:17,906 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_prepare_logo [2023-11-23 20:34:17,906 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_prepare_logo [2023-11-23 20:34:17,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:34:17,907 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_blit [2023-11-23 20:34:17,907 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_blit [2023-11-23 20:34:17,907 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 20:34:17,907 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 20:34:17,907 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2023-11-23 20:34:17,908 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2023-11-23 20:34:17,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-23 20:34:17,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-23 20:34:17,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:34:17,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:34:17,909 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-11-23 20:34:17,909 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-11-23 20:34:17,909 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_modechanged [2023-11-23 20:34:17,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_modechanged [2023-11-23 20:34:17,909 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-11-23 20:34:17,910 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-11-23 20:34:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invert_region [2023-11-23 20:34:17,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invert_region [2023-11-23 20:34:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_all_vcs [2023-11-23 20:34:17,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_all_vcs [2023-11-23 20:34:17,911 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw [2023-11-23 20:34:17,911 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw [2023-11-23 20:34:17,911 INFO L130 BoogieDeclarations]: Found specification of procedure updatescrollmode [2023-11-23 20:34:17,911 INFO L138 BoogieDeclarations]: Found implementation of procedure updatescrollmode [2023-11-23 20:34:17,911 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2023-11-23 20:34:17,912 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2023-11-23 20:34:17,912 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2023-11-23 20:34:17,912 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2023-11-23 20:34:17,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:34:17,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 20:34:17,912 INFO L130 BoogieDeclarations]: Found specification of procedure redraw_screen [2023-11-23 20:34:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure redraw_screen [2023-11-23 20:34:17,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:17,913 INFO L130 BoogieDeclarations]: Found specification of procedure search_fb_in_map [2023-11-23 20:34:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure search_fb_in_map [2023-11-23 20:34:17,913 INFO L130 BoogieDeclarations]: Found specification of procedure con_set_default_unimap [2023-11-23 20:34:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure con_set_default_unimap [2023-11-23 20:34:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-23 20:34:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-23 20:34:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:17,914 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:34:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:34:18,939 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:18,944 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:21,918 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:34:46,556 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:50,980 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:50,980 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:34:50,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:50 BoogieIcfgContainer [2023-11-23 20:34:50,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:50,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:50,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:50,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:50,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:12" (1/3) ... [2023-11-23 20:34:50,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a520e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:50, skipping insertion in model container [2023-11-23 20:34:50,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:16" (2/3) ... [2023-11-23 20:34:50,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a520e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:50, skipping insertion in model container [2023-11-23 20:34:50,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:50" (3/3) ... [2023-11-23 20:34:50,995 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-23 20:34:51,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:51,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:51,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:51,143 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19d20c0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:51,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:51,156 INFO L276 IsEmpty]: Start isEmpty. Operand has 1484 states, 996 states have (on average 1.4196787148594376) internal successors, (1414), 1047 states have internal predecessors, (1414), 404 states have call successors, (404), 83 states have call predecessors, (404), 82 states have return successors, (399), 387 states have call predecessors, (399), 399 states have call successors, (399) [2023-11-23 20:34:51,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-11-23 20:34:51,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:51,207 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:51,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:51,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:51,214 INFO L85 PathProgramCache]: Analyzing trace with hash -2102990556, now seen corresponding path program 1 times [2023-11-23 20:34:51,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:51,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729877141] [2023-11-23 20:34:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:51,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:52,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:53,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2023-11-23 20:34:53,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:53,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729877141] [2023-11-23 20:34:53,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729877141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:53,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:53,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:34:53,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394990045] [2023-11-23 20:34:53,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:53,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:53,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:53,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:53,493 INFO L87 Difference]: Start difference. First operand has 1484 states, 996 states have (on average 1.4196787148594376) internal successors, (1414), 1047 states have internal predecessors, (1414), 404 states have call successors, (404), 83 states have call predecessors, (404), 82 states have return successors, (399), 387 states have call predecessors, (399), 399 states have call successors, (399) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-11-23 20:34:55,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:57,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:59,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []