./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-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ --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 037e795cce503850d2c4452c45fcb076e5748c33e58ba9a275ca2db56216e774 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:18:11,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:18:11,377 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:18:11,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:18:11,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:18:11,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:18:11,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:18:11,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:18:11,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:18:11,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:18:11,431 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:18:11,432 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:18:11,432 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:18:11,434 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:18:11,434 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:18:11,435 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:18:11,435 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:18:11,436 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:18:11,436 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:18:11,436 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:18:11,437 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:18:11,437 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:18:11,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:18:11,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:18:11,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:18:11,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:18:11,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:18:11,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:18:11,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:18:11,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:18:11,442 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:18:11,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:18:11,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:18:11,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:11,443 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:18:11,443 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:18:11,443 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:18:11,443 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:18:11,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:18:11,444 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:18:11,444 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:18:11,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:18:11,447 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_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037e795cce503850d2c4452c45fcb076e5748c33e58ba9a275ca2db56216e774 [2023-11-19 04:18:11,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:18:11,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:18:11,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:18:11,709 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:18:11,709 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:18:11,710 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-19 04:18:14,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:18:15,446 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:18:15,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-19 04:18:15,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/data/126d13949/625653d8326a40139e56b27b39a43334/FLAG64542171f [2023-11-19 04:18:15,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/data/126d13949/625653d8326a40139e56b27b39a43334 [2023-11-19 04:18:15,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:18:15,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:18:15,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:15,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:18:15,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:18:15,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:15" (1/1) ... [2023-11-19 04:18:15,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3b763a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:15, skipping insertion in model container [2023-11-19 04:18:15,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:15" (1/1) ... [2023-11-19 04:18:15,692 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:18:17,989 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_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[261739,261752] [2023-11-19 04:18:18,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:18,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:18:18,880 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_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[261739,261752] [2023-11-19 04:18:18,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:19,037 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:18:19,045 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:18:19,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19 WrapperNode [2023-11-19 04:18:19,046 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:19,047 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:19,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:18:19,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:18:19,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,437 INFO L138 Inliner]: procedures = 308, calls = 2781, calls flagged for inlining = 114, calls inlined = 104, statements flattened = 6750 [2023-11-19 04:18:19,437 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:19,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:18:19,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:18:19,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:18:19,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,525 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:18:19,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:18:19,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:18:19,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:18:19,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (1/1) ... [2023-11-19 04:18:19,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:19,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:18:19,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:18:19,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d012bfd2-03b8-4aa5-a42f-27b856bdd9fa/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:18:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2023-11-19 04:18:20,035 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2023-11-19 04:18:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure con_copy_unimap [2023-11-19 04:18:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure con_copy_unimap [2023-11-19 04:18:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_exit [2023-11-19 04:18:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_exit [2023-11-19 04:18:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure con_is_bound [2023-11-19 04:18:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure con_is_bound [2023-11-19 04:18:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove [2023-11-19 04:18:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove [2023-11-19 04:18:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_display [2023-11-19 04:18:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_display [2023-11-19 04:18:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure do_fbcon_takeover [2023-11-19 04:18:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fbcon_takeover [2023-11-19 04:18:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:18:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:18:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:18:20,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:18:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:18:20,108 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:18:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:18:20,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:18:20,108 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_release_oldinfo [2023-11-19 04:18:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_release_oldinfo [2023-11-19 04:18:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memcpyw [2023-11-19 04:18:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memcpyw [2023-11-19 04:18:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2023-11-19 04:18:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2023-11-19 04:18:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_font [2023-11-19 04:18:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_font [2023-11-19 04:18:20,109 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-19 04:18:20,109 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-19 04:18:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putcs [2023-11-19 04:18:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putcs [2023-11-19 04:18:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure get_color [2023-11-19 04:18:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure get_color [2023-11-19 04:18:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memsetw [2023-11-19 04:18:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memsetw [2023-11-19 04:18:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:18:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:18:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_con_driver [2023-11-19 04:18:20,110 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_con_driver [2023-11-19 04:18:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:18:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:18:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_font [2023-11-19 04:18:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_font [2023-11-19 04:18:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure real_y [2023-11-19 04:18:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure real_y [2023-11-19 04:18:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_update_softback [2023-11-19 04:18:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_update_softback [2023-11-19 04:18:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:18:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:18:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:18:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:18:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure update_region [2023-11-19 04:18:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure update_region [2023-11-19 04:18:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure fb_flashcursor [2023-11-19 04:18:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_flashcursor [2023-11-19 04:18:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure find_font [2023-11-19 04:18:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure find_font [2023-11-19 04:18:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:18:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2023-11-19 04:18:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2023-11-19 04:18:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:18:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_disp [2023-11-19 04:18:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_disp [2023-11-19 04:18:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-19 04:18:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-19 04:18:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:18:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear_margins [2023-11-19 04:18:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear_margins [2023-11-19 04:18:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:18:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:18:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure display_to_var [2023-11-19 04:18:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure display_to_var [2023-11-19 04:18:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:18:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:18:20,114 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:18:20,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:18:20,114 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 [2023-11-19 04:18:20,115 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 [2023-11-19 04:18:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-19 04:18:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-19 04:18:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:18:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:18:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-19 04:18:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-19 04:18:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:18:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:18:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2023-11-19 04:18:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2023-11-19 04:18:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_del_cursor_timer [2023-11-19 04:18:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_del_cursor_timer [2023-11-19 04:18:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_move [2023-11-19 04:18:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_move [2023-11-19 04:18:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:18:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-19 04:18:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-19 04:18:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:18:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_is_inactive [2023-11-19 04:18:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_is_inactive [2023-11-19 04:18:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear [2023-11-19 04:18:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear [2023-11-19 04:18:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_add_cursor_timer [2023-11-19 04:18:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_add_cursor_timer [2023-11-19 04:18:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:18:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2023-11-19 04:18:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2023-11-19 04:18:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:18:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:18:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure set_blitting_type [2023-11-19 04:18:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blitting_type [2023-11-19 04:18:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2023-11-19 04:18:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2023-11-19 04:18:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:18:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:18:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_palette [2023-11-19 04:18:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_palette [2023-11-19 04:18:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:18:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure set_con2fb_map [2023-11-19 04:18:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure set_con2fb_map [2023-11-19 04:18:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2023-11-19 04:18:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2023-11-19 04:18:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure console_conditional_schedule [2023-11-19 04:18:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure console_conditional_schedule [2023-11-19 04:18:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_copy_font [2023-11-19 04:18:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_copy_font [2023-11-19 04:18:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_do_set_font [2023-11-19 04:18:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_do_set_font [2023-11-19 04:18:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:18:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:18:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:18:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_acquire_newinfo [2023-11-19 04:18:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_acquire_newinfo [2023-11-19 04:18:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:18:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:18:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2023-11-19 04:18:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2023-11-19 04:18:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:18:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_prepare_logo [2023-11-19 04:18:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_prepare_logo [2023-11-19 04:18:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:18:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_blit [2023-11-19 04:18:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_blit [2023-11-19 04:18:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-19 04:18:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-19 04:18:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2023-11-19 04:18:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2023-11-19 04:18:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-19 04:18:20,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-19 04:18:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:18:20,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:18:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-11-19 04:18:20,122 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-11-19 04:18:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_modechanged [2023-11-19 04:18:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_modechanged [2023-11-19 04:18:20,125 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-11-19 04:18:20,125 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-11-19 04:18:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invert_region [2023-11-19 04:18:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invert_region [2023-11-19 04:18:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-19 04:18:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-19 04:18:20,126 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_all_vcs [2023-11-19 04:18:20,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_all_vcs [2023-11-19 04:18:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw [2023-11-19 04:18:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw [2023-11-19 04:18:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure updatescrollmode [2023-11-19 04:18:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure updatescrollmode [2023-11-19 04:18:20,127 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2023-11-19 04:18:20,127 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2023-11-19 04:18:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2023-11-19 04:18:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2023-11-19 04:18:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 04:18:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 04:18:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure redraw_screen [2023-11-19 04:18:20,128 INFO L138 BoogieDeclarations]: Found implementation of procedure redraw_screen [2023-11-19 04:18:20,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:18:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure search_fb_in_map [2023-11-19 04:18:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure search_fb_in_map [2023-11-19 04:18:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure con_set_default_unimap [2023-11-19 04:18:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure con_set_default_unimap [2023-11-19 04:18:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-19 04:18:20,129 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-19 04:18:20,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:18:20,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:18:20,130 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:18:20,130 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:18:21,082 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:18:21,090 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:18:23,954 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:18:54,225 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:18:58,217 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:18:58,217 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:18:58,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:58 BoogieIcfgContainer [2023-11-19 04:18:58,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:18:58,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:18:58,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:18:58,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:18:58,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:18:15" (1/3) ... [2023-11-19 04:18:58,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423efe58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:58, skipping insertion in model container [2023-11-19 04:18:58,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:19" (2/3) ... [2023-11-19 04:18:58,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@423efe58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:58, skipping insertion in model container [2023-11-19 04:18:58,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:58" (3/3) ... [2023-11-19 04:18:58,253 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-19 04:18:58,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:18:58,287 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:18:58,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:18:58,396 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;@7891f764, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:18:58,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:18:58,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 1499 states, 1003 states have (on average 1.4207377866400797) internal successors, (1425), 1058 states have internal predecessors, (1425), 410 states have call successors, (410), 85 states have call predecessors, (410), 84 states have return successors, (405), 393 states have call predecessors, (405), 405 states have call successors, (405) [2023-11-19 04:18:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-11-19 04:18:58,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:18:58,471 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] [2023-11-19 04:18:58,473 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:18:58,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:18:58,480 INFO L85 PathProgramCache]: Analyzing trace with hash 339896854, now seen corresponding path program 1 times [2023-11-19 04:18:58,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:18:58,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214134955] [2023-11-19 04:18:58,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:58,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:18:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:19:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2023-11-19 04:19:00,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:19:00,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214134955] [2023-11-19 04:19:00,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214134955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:19:00,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:19:00,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:19:00,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248974437] [2023-11-19 04:19:00,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:19:00,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:19:00,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:19:00,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:19:00,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:19:00,545 INFO L87 Difference]: Start difference. First operand has 1499 states, 1003 states have (on average 1.4207377866400797) internal successors, (1425), 1058 states have internal predecessors, (1425), 410 states have call successors, (410), 85 states have call predecessors, (410), 84 states have return successors, (405), 393 states have call predecessors, (405), 405 states have call successors, (405) 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) [2023-11-19 04:19:02,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []