./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--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 050fd30cd52b5257f5abb9987708941e19eb2524ff9fca178aa5cf81d315756f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:11:04,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:11:04,609 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:11:04,615 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:11:04,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:11:04,674 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:11:04,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:11:04,675 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:11:04,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:11:04,682 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:11:04,682 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:11:04,683 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:11:04,683 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:11:04,685 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:11:04,685 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:11:04,686 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:11:04,686 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:11:04,687 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:11:04,687 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:11:04,688 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:11:04,688 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:11:04,689 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:11:04,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:11:04,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:11:04,691 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:11:04,691 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:11:04,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:11:04,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:11:04,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:11:04,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:11:04,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:11:04,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:11:04,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:11:04,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:11:04,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:04,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:11:04,703 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:11:04,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:11:04,704 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:11:04,704 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:11:04,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:11:04,705 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:11:04,705 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:11:04,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:11:04,706 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_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 050fd30cd52b5257f5abb9987708941e19eb2524ff9fca178aa5cf81d315756f [2023-11-23 21:11:05,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:11:05,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:11:05,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:11:05,093 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:11:05,094 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:11:05,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-23 21:11:08,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:11:08,891 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:11:08,891 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-23 21:11:08,950 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/data/8b2d0f6d4/0c871bb4fc21408c81d871de67983b87/FLAG9dca504c0 [2023-11-23 21:11:08,966 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/data/8b2d0f6d4/0c871bb4fc21408c81d871de67983b87 [2023-11-23 21:11:08,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:11:08,970 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:11:08,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:08,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:11:08,980 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:11:08,981 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:08" (1/1) ... [2023-11-23 21:11:08,982 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c12052b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:08, skipping insertion in model container [2023-11-23 21:11:08,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:11:08" (1/1) ... [2023-11-23 21:11:09,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:11:11,862 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_b2407420-d0b7-4d5a-95bd-efed498f371b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[424156,424169] [2023-11-23 21:11:11,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:12,005 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:11:12,159 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7907] [2023-11-23 21:11:12,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7910] [2023-11-23 21:11:12,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7913] [2023-11-23 21:11:12,162 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7916] [2023-11-23 21:11:12,670 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_b2407420-d0b7-4d5a-95bd-efed498f371b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[424156,424169] [2023-11-23 21:11:12,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:11:12,874 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:11:12,882 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:11:12,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12 WrapperNode [2023-11-23 21:11:12,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:11:12,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:12,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:11:12,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:11:12,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,294 INFO L138 Inliner]: procedures = 223, calls = 3639, calls flagged for inlining = 107, calls inlined = 96, statements flattened = 7662 [2023-11-23 21:11:13,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:11:13,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:11:13,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:11:13,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:11:13,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,645 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,757 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:11:13,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:11:13,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:11:13,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:11:13,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (1/1) ... [2023-11-23 21:11:13,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:11:13,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:11:13,835 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:11:13,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2407420-d0b7-4d5a-95bd-efed498f371b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:11:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-23 21:11:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-23 21:11:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:11:13,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:11:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:11:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:11:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2023-11-23 21:11:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2023-11-23 21:11:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2023-11-23 21:11:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2023-11-23 21:11:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2023-11-23 21:11:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2023-11-23 21:11:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:11:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:11:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2023-11-23 21:11:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2023-11-23 21:11:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2023-11-23 21:11:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2023-11-23 21:11:13,963 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifioff_hwcfg [2023-11-23 21:11:13,963 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifioff_hwcfg [2023-11-23 21:11:13,964 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2023-11-23 21:11:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2023-11-23 21:11:13,965 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-23 21:11:13,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-23 21:11:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:11:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:11:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_lps_notify [2023-11-23 21:11:13,966 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_lps_notify [2023-11-23 21:11:13,966 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2023-11-23 21:11:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2023-11-23 21:11:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_media_status_notify [2023-11-23 21:11:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_media_status_notify [2023-11-23 21:11:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:11:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2023-11-23 21:11:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2023-11-23 21:11:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2023-11-23 21:11:13,968 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2023-11-23 21:11:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2023-11-23 21:11:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2023-11-23 21:11:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2023-11-23 21:11:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2023-11-23 21:11:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:11:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2023-11-23 21:11:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2023-11-23 21:11:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2023-11-23 21:11:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2023-11-23 21:11:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-23 21:11:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-23 21:11:13,970 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2023-11-23 21:11:13,970 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2023-11-23 21:11:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_init_hwconfig [2023-11-23 21:11:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_init_hwconfig [2023-11-23 21:11:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2023-11-23 21:11:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2023-11-23 21:11:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-23 21:11:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-23 21:11:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:11:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:11:13,973 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2023-11-23 21:11:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2023-11-23 21:11:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:11:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:11:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2023-11-23 21:11:13,974 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2023-11-23 21:11:13,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-23 21:11:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-23 21:11:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2023-11-23 21:11:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2023-11-23 21:11:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2023-11-23 21:11:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2023-11-23 21:11:13,975 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-23 21:11:13,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-23 21:11:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:11:13,976 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_ant_path [2023-11-23 21:11:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_ant_path [2023-11-23 21:11:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_init_coex_dm [2023-11-23 21:11:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_init_coex_dm [2023-11-23 21:11:13,977 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2023-11-23 21:11:13,977 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2023-11-23 21:11:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-23 21:11:13,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-23 21:11:13,978 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2023-11-23 21:11:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2023-11-23 21:11:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2023-11-23 21:11:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2023-11-23 21:11:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-23 21:11:13,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-23 21:11:13,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:11:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2023-11-23 21:11:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2023-11-23 21:11:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:11:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:11:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:11:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:11:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-23 21:11:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-23 21:11:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:11:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2023-11-23 21:11:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2023-11-23 21:11:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:11:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:11:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2023-11-23 21:11:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2023-11-23 21:11:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:11:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2023-11-23 21:11:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2023-11-23 21:11:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2023-11-23 21:11:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2023-11-23 21:11:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:11:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-23 21:11:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-23 21:11:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:11:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2023-11-23 21:11:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2023-11-23 21:11:13,985 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2023-11-23 21:11:13,985 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2023-11-23 21:11:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2023-11-23 21:11:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2023-11-23 21:11:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2023-11-23 21:11:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2023-11-23 21:11:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2023-11-23 21:11:13,986 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2023-11-23 21:11:13,986 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-23 21:11:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-23 21:11:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2023-11-23 21:11:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2023-11-23 21:11:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_special_packet_notify [2023-11-23 21:11:13,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_special_packet_notify [2023-11-23 21:11:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2023-11-23 21:11:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2023-11-23 21:11:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2023-11-23 21:11:13,989 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2023-11-23 21:11:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2023-11-23 21:11:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2023-11-23 21:11:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:11:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2023-11-23 21:11:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2023-11-23 21:11:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:11:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:11:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-23 21:11:13,991 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-23 21:11:14,849 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:11:14,852 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:11:17,479 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:11:23,083 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:11:29,353 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:11:29,355 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:11:29,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:29 BoogieIcfgContainer [2023-11-23 21:11:29,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:11:29,366 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:11:29,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:11:29,370 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:11:29,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:11:08" (1/3) ... [2023-11-23 21:11:29,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25babd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:29, skipping insertion in model container [2023-11-23 21:11:29,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:11:12" (2/3) ... [2023-11-23 21:11:29,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25babd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:11:29, skipping insertion in model container [2023-11-23 21:11:29,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:11:29" (3/3) ... [2023-11-23 21:11:29,387 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-23 21:11:29,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:11:29,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:11:29,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:11:29,539 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;@357294f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:11:29,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:11:29,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 2743 states, 1714 states have (on average 1.4054842473745623) internal successors, (2409), 1826 states have internal predecessors, (2409), 964 states have call successors, (964), 64 states have call predecessors, (964), 63 states have return successors, (961), 869 states have call predecessors, (961), 961 states have call successors, (961) [2023-11-23 21:11:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 21:11:29,566 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:29,567 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:29,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:29,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:29,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1034613229, now seen corresponding path program 1 times [2023-11-23 21:11:29,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:29,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428600194] [2023-11-23 21:11:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:29,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:11:30,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:30,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428600194] [2023-11-23 21:11:30,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428600194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:30,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:30,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:30,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064491253] [2023-11-23 21:11:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:30,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:30,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:30,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:30,815 INFO L87 Difference]: Start difference. First operand has 2743 states, 1714 states have (on average 1.4054842473745623) internal successors, (2409), 1826 states have internal predecessors, (2409), 964 states have call successors, (964), 64 states have call predecessors, (964), 63 states have return successors, (961), 869 states have call predecessors, (961), 961 states have call successors, (961) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-23 21:11:33,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:35,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:38,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:40,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:46,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:46,032 INFO L93 Difference]: Finished difference Result 7780 states and 12285 transitions. [2023-11-23 21:11:46,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 58 [2023-11-23 21:11:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:46,148 INFO L225 Difference]: With dead ends: 7780 [2023-11-23 21:11:46,149 INFO L226 Difference]: Without dead ends: 4796 [2023-11-23 21:11:46,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:46,278 INFO L413 NwaCegarLoop]: 3840 mSDtfsCounter, 4061 mSDsluCounter, 3834 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4061 SdHoareTripleChecker+Valid, 7674 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:46,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4061 Valid, 7674 Invalid, 565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 554 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2023-11-23 21:11:46,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4796 states. [2023-11-23 21:11:47,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4796 to 4796. [2023-11-23 21:11:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4796 states, 3063 states have (on average 1.3979758406790728) internal successors, (4282), 3219 states have internal predecessors, (4282), 1648 states have call successors, (1648), 85 states have call predecessors, (1648), 84 states have return successors, (1647), 1513 states have call predecessors, (1647), 1647 states have call successors, (1647) [2023-11-23 21:11:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4796 states to 4796 states and 7577 transitions. [2023-11-23 21:11:47,389 INFO L78 Accepts]: Start accepts. Automaton has 4796 states and 7577 transitions. Word has length 58 [2023-11-23 21:11:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:47,391 INFO L495 AbstractCegarLoop]: Abstraction has 4796 states and 7577 transitions. [2023-11-23 21:11:47,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-23 21:11:47,394 INFO L276 IsEmpty]: Start isEmpty. Operand 4796 states and 7577 transitions. [2023-11-23 21:11:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 21:11:47,402 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:47,402 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:47,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:11:47,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:11:47,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:47,405 INFO L85 PathProgramCache]: Analyzing trace with hash 172935298, now seen corresponding path program 1 times [2023-11-23 21:11:47,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:47,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086225390] [2023-11-23 21:11:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:47,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:47,817 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-23 21:11:47,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:47,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086225390] [2023-11-23 21:11:47,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086225390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:47,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:47,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:47,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109165202] [2023-11-23 21:11:47,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:47,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:47,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:47,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:47,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:47,821 INFO L87 Difference]: Start difference. First operand 4796 states and 7577 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 21:11:49,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:51,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:54,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:55,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:56,129 INFO L93 Difference]: Finished difference Result 4796 states and 7577 transitions. [2023-11-23 21:11:56,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:56,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 61 [2023-11-23 21:11:56,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:56,132 INFO L225 Difference]: With dead ends: 4796 [2023-11-23 21:11:56,132 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:11:56,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:56,203 INFO L413 NwaCegarLoop]: 3554 mSDtfsCounter, 3783 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3783 SdHoareTripleChecker+Valid, 3554 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:56,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3783 Valid, 3554 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2023-11-23 21:11:56,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:11:56,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:11:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:11:56,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:11:56,207 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2023-11-23 21:11:56,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:56,208 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:11:56,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 21:11:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:11:56,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:11:56,211 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:11:56,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:11:56,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.