./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/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_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/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_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/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_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/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 037e795cce503850d2c4452c45fcb076e5748c33e58ba9a275ca2db56216e774 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:05,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:05,790 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:32:05,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:05,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:05,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:05,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:05,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:05,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:05,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:05,848 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:05,848 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:05,849 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:05,850 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:32:05,850 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:05,851 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:05,852 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:32:05,852 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:32:05,853 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:05,854 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:32:05,855 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:32:05,855 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:32:05,857 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:05,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:05,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:32:05,862 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:05,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:05,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:05,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:05,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:05,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:05,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:05,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:05,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:05,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:05,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:05,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:05,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:05,868 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:32:05,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:32:05,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:05,869 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:05,870 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:05,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:05,870 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_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037e795cce503850d2c4452c45fcb076e5748c33e58ba9a275ca2db56216e774 [2023-11-23 21:32:06,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:06,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:06,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:06,186 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:06,187 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:06,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 21:32:09,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:10,160 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:10,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/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 [2023-11-23 21:32:10,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/data/153057d8f/91da2a5d2178480da05039f4c0cf26c2/FLAGcab867bee [2023-11-23 21:32:10,226 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/data/153057d8f/91da2a5d2178480da05039f4c0cf26c2 [2023-11-23 21:32:10,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:10,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:10,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:10,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:10,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:10,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:10" (1/1) ... [2023-11-23 21:32:10,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4371e795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:10, skipping insertion in model container [2023-11-23 21:32:10,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:10" (1/1) ... [2023-11-23 21:32:10,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:12,676 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_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/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] [2023-11-23 21:32:12,962 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:13,042 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:13,571 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_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/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] [2023-11-23 21:32:13,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:13,758 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:13,766 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:13,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13 WrapperNode [2023-11-23 21:32:13,768 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:13,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:13,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:13,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:13,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:13,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,242 INFO L138 Inliner]: procedures = 308, calls = 2781, calls flagged for inlining = 114, calls inlined = 104, statements flattened = 6750 [2023-11-23 21:32:14,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:14,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:14,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:14,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:14,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,362 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:14,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:14,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:14,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:14,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (1/1) ... [2023-11-23 21:32:14,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:14,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:14,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:14,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e21ba5-7162-4f6e-8fd7-2fe4f05186a9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2023-11-23 21:32:14,959 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2023-11-23 21:32:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure con_copy_unimap [2023-11-23 21:32:14,960 INFO L138 BoogieDeclarations]: Found implementation of procedure con_copy_unimap [2023-11-23 21:32:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_exit [2023-11-23 21:32:14,960 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_exit [2023-11-23 21:32:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure con_is_bound [2023-11-23 21:32:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure con_is_bound [2023-11-23 21:32:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove [2023-11-23 21:32:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove [2023-11-23 21:32:14,961 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_display [2023-11-23 21:32:14,961 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_display [2023-11-23 21:32:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure do_fbcon_takeover [2023-11-23 21:32:14,962 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fbcon_takeover [2023-11-23 21:32:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:32:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:32:14,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:32:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:32:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:32:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:32:14,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:32:14,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:32:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_release_oldinfo [2023-11-23 21:32:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_release_oldinfo [2023-11-23 21:32:14,964 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memcpyw [2023-11-23 21:32:14,964 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memcpyw [2023-11-23 21:32:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2023-11-23 21:32:15,036 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2023-11-23 21:32:15,036 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_font [2023-11-23 21:32:15,036 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_font [2023-11-23 21:32:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 21:32:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 21:32:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putcs [2023-11-23 21:32:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putcs [2023-11-23 21:32:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure get_color [2023-11-23 21:32:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure get_color [2023-11-23 21:32:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memsetw [2023-11-23 21:32:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memsetw [2023-11-23 21:32:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:32:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:32:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_con_driver [2023-11-23 21:32:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_con_driver [2023-11-23 21:32:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:32:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:32:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_font [2023-11-23 21:32:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_font [2023-11-23 21:32:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure real_y [2023-11-23 21:32:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure real_y [2023-11-23 21:32:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_update_softback [2023-11-23 21:32:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_update_softback [2023-11-23 21:32:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:32:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:32:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure update_region [2023-11-23 21:32:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure update_region [2023-11-23 21:32:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure fb_flashcursor [2023-11-23 21:32:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_flashcursor [2023-11-23 21:32:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure find_font [2023-11-23 21:32:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure find_font [2023-11-23 21:32:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:32:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2023-11-23 21:32:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2023-11-23 21:32:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:32:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_disp [2023-11-23 21:32:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_disp [2023-11-23 21:32:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-23 21:32:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-23 21:32:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:32:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear_margins [2023-11-23 21:32:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear_margins [2023-11-23 21:32:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:32:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:32:15,041 INFO L130 BoogieDeclarations]: Found specification of procedure display_to_var [2023-11-23 21:32:15,041 INFO L138 BoogieDeclarations]: Found implementation of procedure display_to_var [2023-11-23 21:32:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:32:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:32:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:32:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:32:15,042 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 21:32:15,042 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 21:32:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-23 21:32:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-23 21:32:15,042 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:32:15,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:32:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 21:32:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 21:32:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:32:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:32:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2023-11-23 21:32:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2023-11-23 21:32:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_del_cursor_timer [2023-11-23 21:32:15,043 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_del_cursor_timer [2023-11-23 21:32:15,043 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_move [2023-11-23 21:32:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_move [2023-11-23 21:32:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:32:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 21:32:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-23 21:32:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:32:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_is_inactive [2023-11-23 21:32:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_is_inactive [2023-11-23 21:32:15,044 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear [2023-11-23 21:32:15,044 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear [2023-11-23 21:32:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_add_cursor_timer [2023-11-23 21:32:15,045 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_add_cursor_timer [2023-11-23 21:32:15,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:32:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2023-11-23 21:32:15,047 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2023-11-23 21:32:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:32:15,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:32:15,047 INFO L130 BoogieDeclarations]: Found specification of procedure set_blitting_type [2023-11-23 21:32:15,047 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blitting_type [2023-11-23 21:32:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2023-11-23 21:32:15,048 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2023-11-23 21:32:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:32:15,048 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:32:15,048 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_palette [2023-11-23 21:32:15,048 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_palette [2023-11-23 21:32:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:32:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure set_con2fb_map [2023-11-23 21:32:15,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_con2fb_map [2023-11-23 21:32:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2023-11-23 21:32:15,049 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2023-11-23 21:32:15,049 INFO L130 BoogieDeclarations]: Found specification of procedure console_conditional_schedule [2023-11-23 21:32:15,049 INFO L138 BoogieDeclarations]: Found implementation of procedure console_conditional_schedule [2023-11-23 21:32:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_copy_font [2023-11-23 21:32:15,050 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_copy_font [2023-11-23 21:32:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_do_set_font [2023-11-23 21:32:15,050 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_do_set_font [2023-11-23 21:32:15,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:32:15,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:32:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:32:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_acquire_newinfo [2023-11-23 21:32:15,051 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_acquire_newinfo [2023-11-23 21:32:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:32:15,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:32:15,051 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2023-11-23 21:32:15,052 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2023-11-23 21:32:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_prepare_logo [2023-11-23 21:32:15,052 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_prepare_logo [2023-11-23 21:32:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:32:15,052 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_blit [2023-11-23 21:32:15,052 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_blit [2023-11-23 21:32:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-23 21:32:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-23 21:32:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2023-11-23 21:32:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2023-11-23 21:32:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-23 21:32:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-23 21:32:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:32:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:32:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-11-23 21:32:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-11-23 21:32:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_modechanged [2023-11-23 21:32:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_modechanged [2023-11-23 21:32:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-11-23 21:32:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-11-23 21:32:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invert_region [2023-11-23 21:32:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invert_region [2023-11-23 21:32:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-23 21:32:15,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-23 21:32:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_all_vcs [2023-11-23 21:32:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_all_vcs [2023-11-23 21:32:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw [2023-11-23 21:32:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw [2023-11-23 21:32:15,056 INFO L130 BoogieDeclarations]: Found specification of procedure updatescrollmode [2023-11-23 21:32:15,056 INFO L138 BoogieDeclarations]: Found implementation of procedure updatescrollmode [2023-11-23 21:32:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2023-11-23 21:32:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2023-11-23 21:32:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2023-11-23 21:32:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2023-11-23 21:32:15,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:32:15,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:32:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure redraw_screen [2023-11-23 21:32:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure redraw_screen [2023-11-23 21:32:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:32:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure search_fb_in_map [2023-11-23 21:32:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure search_fb_in_map [2023-11-23 21:32:15,058 INFO L130 BoogieDeclarations]: Found specification of procedure con_set_default_unimap [2023-11-23 21:32:15,058 INFO L138 BoogieDeclarations]: Found implementation of procedure con_set_default_unimap [2023-11-23 21:32:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-23 21:32:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-23 21:32:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:15,059 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:32:15,059 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:32:16,046 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:16,055 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:18,861 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:32:43,316 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:48,510 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:48,510 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:32:48,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:48 BoogieIcfgContainer [2023-11-23 21:32:48,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:48,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:48,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:48,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:48,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:10" (1/3) ... [2023-11-23 21:32:48,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e917d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:48, skipping insertion in model container [2023-11-23 21:32:48,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:13" (2/3) ... [2023-11-23 21:32:48,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e917d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:48, skipping insertion in model container [2023-11-23 21:32:48,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:48" (3/3) ... [2023-11-23 21:32:48,527 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-23 21:32:48,553 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:48,554 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:48,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:48,661 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;@1aa97d44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:48,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:48,674 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) [2023-11-23 21:32:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-11-23 21:32:48,732 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:48,734 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 21:32:48,735 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:48,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:48,743 INFO L85 PathProgramCache]: Analyzing trace with hash -822595735, now seen corresponding path program 1 times [2023-11-23 21:32:48,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:48,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103046531] [2023-11-23 21:32:48,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:48,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:51,084 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 21:32:51,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:51,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103046531] [2023-11-23 21:32:51,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103046531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:51,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:51,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:51,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404170073] [2023-11-23 21:32:51,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:51,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:51,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:51,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:51,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:51,154 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) [2023-11-23 21:32:53,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:55,266 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 []