./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cd4602f1a95f60cf2d782cdd09ffbf4f13da5d7831c02d1076d087dbb1c87f94 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:54:53,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:54:53,804 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:54:53,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:54:53,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:54:53,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:54:53,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:54:53,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:54:53,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:54:53,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:54:53,843 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:54:53,843 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:54:53,844 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:54:53,845 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:54:53,845 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:54:53,846 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:54:53,846 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:54:53,847 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:54:53,847 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:54:53,848 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:54:53,848 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:54:53,849 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:54:53,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:54:53,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:54:53,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:54:53,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:54:53,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:54:53,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:54:53,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:54:53,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:54:53,854 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:54:53,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:54:53,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:54:53,855 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:54:53,855 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:54:53,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:54:53,856 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:54:53,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:54:53,857 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:54:53,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:54:53,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:54:53,859 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:54:53,859 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:54:53,860 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:54:53,860 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_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd4602f1a95f60cf2d782cdd09ffbf4f13da5d7831c02d1076d087dbb1c87f94 [2023-11-21 19:54:54,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:54:54,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:54:54,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:54:54,151 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:54:54,152 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:54:54,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-21 19:54:57,531 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:54:58,321 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:54:58,323 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-21 19:54:58,372 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/data/353f0cd5b/93b956dbd31146db8b2dc450e06584af/FLAGeece845c3 [2023-11-21 19:54:58,388 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/data/353f0cd5b/93b956dbd31146db8b2dc450e06584af [2023-11-21 19:54:58,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:54:58,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:54:58,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:54:58,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:54:58,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:54:58,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:58" (1/1) ... [2023-11-21 19:54:58,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553d9dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:54:58, skipping insertion in model container [2023-11-21 19:54:58,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:54:58" (1/1) ... [2023-11-21 19:54:58,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:55:00,672 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_6e221b29-20fe-4dc7-bea1-5611796d656b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[260495,260508] [2023-11-21 19:55:00,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:00,808 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:55:01,424 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_6e221b29-20fe-4dc7-bea1-5611796d656b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[260495,260508] [2023-11-21 19:55:01,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:55:01,605 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:55:01,615 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:55:01,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01 WrapperNode [2023-11-21 19:55:01,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:55:01,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:55:01,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:55:01,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:55:01,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:01,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,137 INFO L138 Inliner]: procedures = 251, calls = 2681, calls flagged for inlining = 118, calls inlined = 113, statements flattened = 6964 [2023-11-21 19:55:02,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:55:02,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:55:02,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:55:02,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:55:02,149 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,550 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,594 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,718 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:55:02,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:55:02,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:55:02,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:55:02,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (1/1) ... [2023-11-21 19:55:02,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:55:02,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:55:02,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:55:02,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e221b29-20fe-4dc7-bea1-5611796d656b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:55:02,796 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2023-11-21 19:55:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2023-11-21 19:55:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure con_copy_unimap [2023-11-21 19:55:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure con_copy_unimap [2023-11-21 19:55:02,797 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_exit [2023-11-21 19:55:02,797 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_exit [2023-11-21 19:55:02,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2023-11-21 19:55:02,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2023-11-21 19:55:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure con_is_bound [2023-11-21 19:55:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure con_is_bound [2023-11-21 19:55:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove [2023-11-21 19:55:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove [2023-11-21 19:55:02,800 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_display [2023-11-21 19:55:02,800 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_display [2023-11-21 19:55:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure do_fbcon_takeover [2023-11-21 19:55:02,801 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fbcon_takeover [2023-11-21 19:55:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:55:02,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:55:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:55:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:55:02,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 19:55:02,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 19:55:02,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:55:02,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:55:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_release_oldinfo [2023-11-21 19:55:02,804 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_release_oldinfo [2023-11-21 19:55:02,804 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memcpyw [2023-11-21 19:55:02,804 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memcpyw [2023-11-21 19:55:02,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-21 19:55:02,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-21 19:55:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2023-11-21 19:55:02,806 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2023-11-21 19:55:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_font [2023-11-21 19:55:02,806 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_font [2023-11-21 19:55:02,806 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-21 19:55:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-21 19:55:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putcs [2023-11-21 19:55:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putcs [2023-11-21 19:55:02,807 INFO L130 BoogieDeclarations]: Found specification of procedure get_color [2023-11-21 19:55:02,807 INFO L138 BoogieDeclarations]: Found implementation of procedure get_color [2023-11-21 19:55:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memsetw [2023-11-21 19:55:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memsetw [2023-11-21 19:55:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_con_driver [2023-11-21 19:55:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_con_driver [2023-11-21 19:55:02,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 19:55:02,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 19:55:02,809 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_font [2023-11-21 19:55:02,809 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_font [2023-11-21 19:55:02,809 INFO L130 BoogieDeclarations]: Found specification of procedure real_y [2023-11-21 19:55:02,809 INFO L138 BoogieDeclarations]: Found implementation of procedure real_y [2023-11-21 19:55:02,809 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_update_softback [2023-11-21 19:55:02,809 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_update_softback [2023-11-21 19:55:02,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:55:02,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:55:02,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:55:02,810 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:55:02,810 INFO L130 BoogieDeclarations]: Found specification of procedure update_region [2023-11-21 19:55:02,811 INFO L138 BoogieDeclarations]: Found implementation of procedure update_region [2023-11-21 19:55:02,811 INFO L130 BoogieDeclarations]: Found specification of procedure fb_flashcursor [2023-11-21 19:55:02,811 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_flashcursor [2023-11-21 19:55:02,812 INFO L130 BoogieDeclarations]: Found specification of procedure find_font [2023-11-21 19:55:02,813 INFO L138 BoogieDeclarations]: Found implementation of procedure find_font [2023-11-21 19:55:02,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:55:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2023-11-21 19:55:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2023-11-21 19:55:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 19:55:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_disp [2023-11-21 19:55:02,814 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_disp [2023-11-21 19:55:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:55:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear_margins [2023-11-21 19:55:02,815 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear_margins [2023-11-21 19:55:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 19:55:02,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 19:55:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure display_to_var [2023-11-21 19:55:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure display_to_var [2023-11-21 19:55:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:55:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:55:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:55:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:55:02,818 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 [2023-11-21 19:55:02,818 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 [2023-11-21 19:55:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 19:55:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 19:55:02,818 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-21 19:55:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-21 19:55:02,819 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 19:55:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 19:55:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2023-11-21 19:55:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2023-11-21 19:55:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_del_cursor_timer [2023-11-21 19:55:02,820 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_del_cursor_timer [2023-11-21 19:55:02,820 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_move [2023-11-21 19:55:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_move [2023-11-21 19:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-21 19:55:02,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-21 19:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:55:02,821 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_is_inactive [2023-11-21 19:55:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_is_inactive [2023-11-21 19:55:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear [2023-11-21 19:55:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear [2023-11-21 19:55:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_add_cursor_timer [2023-11-21 19:55:02,822 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_add_cursor_timer [2023-11-21 19:55:02,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:55:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2023-11-21 19:55:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2023-11-21 19:55:02,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:55:02,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:55:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure set_blitting_type [2023-11-21 19:55:02,824 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blitting_type [2023-11-21 19:55:02,824 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2023-11-21 19:55:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2023-11-21 19:55:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:55:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:55:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_palette [2023-11-21 19:55:02,825 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_palette [2023-11-21 19:55:02,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:55:02,826 INFO L130 BoogieDeclarations]: Found specification of procedure set_con2fb_map [2023-11-21 19:55:02,826 INFO L138 BoogieDeclarations]: Found implementation of procedure set_con2fb_map [2023-11-21 19:55:02,827 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2023-11-21 19:55:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2023-11-21 19:55:02,827 INFO L130 BoogieDeclarations]: Found specification of procedure console_conditional_schedule [2023-11-21 19:55:02,827 INFO L138 BoogieDeclarations]: Found implementation of procedure console_conditional_schedule [2023-11-21 19:55:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_copy_font [2023-11-21 19:55:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_copy_font [2023-11-21 19:55:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_do_set_font [2023-11-21 19:55:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_do_set_font [2023-11-21 19:55:02,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 19:55:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 19:55:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:55:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_acquire_newinfo [2023-11-21 19:55:02,829 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_acquire_newinfo [2023-11-21 19:55:02,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-21 19:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-21 19:55:02,830 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2023-11-21 19:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2023-11-21 19:55:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:55:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_prepare_logo [2023-11-21 19:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_prepare_logo [2023-11-21 19:55:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:55:02,831 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_blit [2023-11-21 19:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_blit [2023-11-21 19:55:02,832 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-21 19:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-21 19:55:02,832 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2023-11-21 19:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2023-11-21 19:55:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-21 19:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-21 19:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:55:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-11-21 19:55:02,839 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-11-21 19:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_modechanged [2023-11-21 19:55:02,841 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_modechanged [2023-11-21 19:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-11-21 19:55:02,842 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-11-21 19:55:02,847 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invert_region [2023-11-21 19:55:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invert_region [2023-11-21 19:55:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_all_vcs [2023-11-21 19:55:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_all_vcs [2023-11-21 19:55:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw [2023-11-21 19:55:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw [2023-11-21 19:55:02,848 INFO L130 BoogieDeclarations]: Found specification of procedure updatescrollmode [2023-11-21 19:55:02,848 INFO L138 BoogieDeclarations]: Found implementation of procedure updatescrollmode [2023-11-21 19:55:02,849 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2023-11-21 19:55:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2023-11-21 19:55:02,849 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2023-11-21 19:55:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2023-11-21 19:55:02,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 19:55:02,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 19:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure redraw_screen [2023-11-21 19:55:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure redraw_screen [2023-11-21 19:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure search_fb_in_map [2023-11-21 19:55:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure search_fb_in_map [2023-11-21 19:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure con_set_default_unimap [2023-11-21 19:55:02,850 INFO L138 BoogieDeclarations]: Found implementation of procedure con_set_default_unimap [2023-11-21 19:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-21 19:55:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-21 19:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:55:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-21 19:55:02,851 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-21 19:55:04,054 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:55:04,058 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:55:07,106 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:55:36,523 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:55:41,336 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:55:41,337 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:55:41,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:55:41 BoogieIcfgContainer [2023-11-21 19:55:41,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:55:41,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:55:41,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:55:41,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:55:41,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:54:58" (1/3) ... [2023-11-21 19:55:41,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19de6572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:55:41, skipping insertion in model container [2023-11-21 19:55:41,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:55:01" (2/3) ... [2023-11-21 19:55:41,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19de6572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:55:41, skipping insertion in model container [2023-11-21 19:55:41,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:55:41" (3/3) ... [2023-11-21 19:55:41,353 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-21 19:55:41,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:55:41,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:55:41,480 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:55:41,488 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;@3de31545, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:55:41,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:55:41,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 1484 states, 996 states have (on average 1.4196787148594376) internal successors, (1414), 1047 states have internal predecessors, (1414), 404 states have call successors, (404), 83 states have call predecessors, (404), 82 states have return successors, (399), 387 states have call predecessors, (399), 399 states have call successors, (399) [2023-11-21 19:55:41,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-11-21 19:55:41,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:55:41,568 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] [2023-11-21 19:55:41,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:55:41,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:55:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash -2102990556, now seen corresponding path program 1 times [2023-11-21 19:55:41,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:55:41,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899467465] [2023-11-21 19:55:41,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:55:41,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:55:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:55:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2023-11-21 19:55:43,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:55:43,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899467465] [2023-11-21 19:55:43,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899467465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:55:43,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:55:43,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:55:43,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781734599] [2023-11-21 19:55:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:55:43,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:55:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:55:43,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:55:43,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:55:43,637 INFO L87 Difference]: Start difference. First operand has 1484 states, 996 states have (on average 1.4196787148594376) internal successors, (1414), 1047 states have internal predecessors, (1414), 404 states have call successors, (404), 83 states have call predecessors, (404), 82 states have return successors, (399), 387 states have call predecessors, (399), 399 states have call successors, (399) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-11-21 19:55:45,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []