./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 cf1a7837 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_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/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_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:45:03,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:45:03,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:45:03,302 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:45:03,303 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:45:03,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:45:03,379 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:45:03,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:45:03,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:45:03,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:45:03,388 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:45:03,390 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:45:03,390 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:45:03,391 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:45:03,392 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:45:03,392 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:45:03,393 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:45:03,394 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:45:03,394 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:45:03,395 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:45:03,395 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:45:03,396 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:45:03,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:45:03,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:45:03,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:45:03,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:45:03,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:45:03,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:45:03,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:45:03,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:45:03,414 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:45:03,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:45:03,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:45:03,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:45:03,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:45:03,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:45:03,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:45:03,417 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:45:03,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:45:03,417 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:45:03,418 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:45:03,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:45:03,418 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_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037e795cce503850d2c4452c45fcb076e5748c33e58ba9a275ca2db56216e774 [2023-11-12 00:45:03,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:45:03,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:45:03,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:45:03,849 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:45:03,850 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:45:03,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/../../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 [2023-11-12 00:45:07,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:45:07,845 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:45:07,847 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/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 [2023-11-12 00:45:07,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/data/b757bf4ee/db8e5e1366fd4674b5d79dd32e806efb/FLAG45235afb9 [2023-11-12 00:45:07,928 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/data/b757bf4ee/db8e5e1366fd4674b5d79dd32e806efb [2023-11-12 00:45:07,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:45:07,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:45:07,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:45:07,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:45:07,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:45:07,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:07" (1/1) ... [2023-11-12 00:45:07,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174706c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:07, skipping insertion in model container [2023-11-12 00:45:07,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:07" (1/1) ... [2023-11-12 00:45:08,168 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:45:10,551 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_d877301b-ab2d-4b2c-926b-18d8f9f62420/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] [2023-11-12 00:45:10,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:45:10,901 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:45:11,428 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_d877301b-ab2d-4b2c-926b-18d8f9f62420/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] [2023-11-12 00:45:11,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:45:11,646 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:45:11,655 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:45:11,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11 WrapperNode [2023-11-12 00:45:11,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:45:11,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:45:11,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:45:11,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:45:11,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:11,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,033 INFO L138 Inliner]: procedures = 308, calls = 2781, calls flagged for inlining = 114, calls inlined = 104, statements flattened = 6750 [2023-11-12 00:45:12,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:45:12,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:45:12,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:45:12,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:45:12,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,101 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,101 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,461 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:45:12,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:45:12,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:45:12,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:45:12,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (1/1) ... [2023-11-12 00:45:12,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:45:12,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:45:12,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:45:12,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d877301b-ab2d-4b2c-926b-18d8f9f62420/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:45:12,676 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2023-11-12 00:45:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2023-11-12 00:45:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure con_copy_unimap [2023-11-12 00:45:12,677 INFO L138 BoogieDeclarations]: Found implementation of procedure con_copy_unimap [2023-11-12 00:45:12,677 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_exit [2023-11-12 00:45:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_exit [2023-11-12 00:45:12,678 INFO L130 BoogieDeclarations]: Found specification of procedure con_is_bound [2023-11-12 00:45:12,678 INFO L138 BoogieDeclarations]: Found implementation of procedure con_is_bound [2023-11-12 00:45:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove [2023-11-12 00:45:12,680 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove [2023-11-12 00:45:12,680 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_display [2023-11-12 00:45:12,680 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_display [2023-11-12 00:45:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure do_fbcon_takeover [2023-11-12 00:45:12,681 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fbcon_takeover [2023-11-12 00:45:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:45:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:45:12,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:45:12,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:45:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:45:12,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:45:12,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:45:12,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:45:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_release_oldinfo [2023-11-12 00:45:12,683 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_release_oldinfo [2023-11-12 00:45:12,683 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memcpyw [2023-11-12 00:45:12,684 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memcpyw [2023-11-12 00:45:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2023-11-12 00:45:12,685 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2023-11-12 00:45:12,685 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_font [2023-11-12 00:45:12,685 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_font [2023-11-12 00:45:12,686 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-12 00:45:12,686 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-12 00:45:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putcs [2023-11-12 00:45:12,687 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putcs [2023-11-12 00:45:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure get_color [2023-11-12 00:45:12,687 INFO L138 BoogieDeclarations]: Found implementation of procedure get_color [2023-11-12 00:45:12,687 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memsetw [2023-11-12 00:45:12,687 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memsetw [2023-11-12 00:45:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:45:12,688 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:45:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_con_driver [2023-11-12 00:45:12,688 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_con_driver [2023-11-12 00:45:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:45:12,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:45:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_font [2023-11-12 00:45:12,689 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_font [2023-11-12 00:45:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure real_y [2023-11-12 00:45:12,689 INFO L138 BoogieDeclarations]: Found implementation of procedure real_y [2023-11-12 00:45:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_update_softback [2023-11-12 00:45:12,689 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_update_softback [2023-11-12 00:45:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:45:12,690 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:45:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:45:12,690 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:45:12,690 INFO L130 BoogieDeclarations]: Found specification of procedure update_region [2023-11-12 00:45:12,690 INFO L138 BoogieDeclarations]: Found implementation of procedure update_region [2023-11-12 00:45:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure fb_flashcursor [2023-11-12 00:45:12,691 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_flashcursor [2023-11-12 00:45:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure find_font [2023-11-12 00:45:12,692 INFO L138 BoogieDeclarations]: Found implementation of procedure find_font [2023-11-12 00:45:12,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:45:12,692 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2023-11-12 00:45:12,693 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2023-11-12 00:45:12,693 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:45:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_disp [2023-11-12 00:45:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_disp [2023-11-12 00:45:12,694 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-12 00:45:12,694 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-12 00:45:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:45:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear_margins [2023-11-12 00:45:12,695 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear_margins [2023-11-12 00:45:12,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:45:12,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:45:12,696 INFO L130 BoogieDeclarations]: Found specification of procedure display_to_var [2023-11-12 00:45:12,696 INFO L138 BoogieDeclarations]: Found implementation of procedure display_to_var [2023-11-12 00:45:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:45:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:45:12,697 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:45:12,697 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:45:12,697 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 [2023-11-12 00:45:12,697 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 [2023-11-12 00:45:12,698 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-12 00:45:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-12 00:45:12,698 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:45:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:45:12,698 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-12 00:45:12,698 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-12 00:45:12,699 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:45:12,699 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:45:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2023-11-12 00:45:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2023-11-12 00:45:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_del_cursor_timer [2023-11-12 00:45:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_del_cursor_timer [2023-11-12 00:45:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_move [2023-11-12 00:45:12,700 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_move [2023-11-12 00:45:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:45:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-12 00:45:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-12 00:45:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:45:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_is_inactive [2023-11-12 00:45:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_is_inactive [2023-11-12 00:45:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear [2023-11-12 00:45:12,702 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear [2023-11-12 00:45:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_add_cursor_timer [2023-11-12 00:45:12,702 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_add_cursor_timer [2023-11-12 00:45:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:45:12,702 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2023-11-12 00:45:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2023-11-12 00:45:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:45:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:45:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure set_blitting_type [2023-11-12 00:45:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blitting_type [2023-11-12 00:45:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2023-11-12 00:45:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2023-11-12 00:45:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:45:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:45:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_palette [2023-11-12 00:45:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_palette [2023-11-12 00:45:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:45:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure set_con2fb_map [2023-11-12 00:45:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure set_con2fb_map [2023-11-12 00:45:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2023-11-12 00:45:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2023-11-12 00:45:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure console_conditional_schedule [2023-11-12 00:45:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure console_conditional_schedule [2023-11-12 00:45:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_copy_font [2023-11-12 00:45:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_copy_font [2023-11-12 00:45:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_do_set_font [2023-11-12 00:45:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_do_set_font [2023-11-12 00:45:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:45:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:45:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:45:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_acquire_newinfo [2023-11-12 00:45:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_acquire_newinfo [2023-11-12 00:45:12,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 00:45:12,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 00:45:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2023-11-12 00:45:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2023-11-12 00:45:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:45:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_prepare_logo [2023-11-12 00:45:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_prepare_logo [2023-11-12 00:45:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:45:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_blit [2023-11-12 00:45:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_blit [2023-11-12 00:45:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-12 00:45:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-12 00:45:12,712 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2023-11-12 00:45:12,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2023-11-12 00:45:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-12 00:45:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2023-11-12 00:45:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:45:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:45:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-11-12 00:45:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-11-12 00:45:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_modechanged [2023-11-12 00:45:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_modechanged [2023-11-12 00:45:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-11-12 00:45:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-11-12 00:45:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invert_region [2023-11-12 00:45:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invert_region [2023-11-12 00:45:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-12 00:45:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2023-11-12 00:45:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_all_vcs [2023-11-12 00:45:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_all_vcs [2023-11-12 00:45:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw [2023-11-12 00:45:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw [2023-11-12 00:45:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure updatescrollmode [2023-11-12 00:45:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure updatescrollmode [2023-11-12 00:45:12,728 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2023-11-12 00:45:12,728 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2023-11-12 00:45:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2023-11-12 00:45:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2023-11-12 00:45:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:45:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 00:45:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure redraw_screen [2023-11-12 00:45:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure redraw_screen [2023-11-12 00:45:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:45:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure search_fb_in_map [2023-11-12 00:45:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure search_fb_in_map [2023-11-12 00:45:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure con_set_default_unimap [2023-11-12 00:45:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure con_set_default_unimap [2023-11-12 00:45:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-12 00:45:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-12 00:45:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:45:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:45:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:45:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:45:13,669 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:45:13,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:45:16,871 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:45:46,460 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:45:51,571 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:45:51,572 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:45:51,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:45:51 BoogieIcfgContainer [2023-11-12 00:45:51,578 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:45:51,582 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:45:51,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:45:51,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:45:51,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:45:07" (1/3) ... [2023-11-12 00:45:51,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5628bc09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:45:51, skipping insertion in model container [2023-11-12 00:45:51,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:11" (2/3) ... [2023-11-12 00:45:51,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5628bc09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:45:51, skipping insertion in model container [2023-11-12 00:45:51,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:45:51" (3/3) ... [2023-11-12 00:45:51,592 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2023-11-12 00:45:51,614 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:45:51,614 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:45:51,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:45:51,731 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;@2a3183f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:45:51,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:45:51,746 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) [2023-11-12 00:45:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-11-12 00:45:51,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:51,809 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] [2023-11-12 00:45:51,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:45:51,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:51,816 INFO L85 PathProgramCache]: Analyzing trace with hash 339896854, now seen corresponding path program 1 times [2023-11-12 00:45:51,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:51,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160630909] [2023-11-12 00:45:51,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:51,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:53,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2023-11-12 00:45:53,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:53,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160630909] [2023-11-12 00:45:53,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160630909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:53,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:53,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:45:53,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953897473] [2023-11-12 00:45:53,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:53,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:45:53,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:53,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:45:53,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:45:53,582 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)