./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--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eefd235ee9286fb26972c9330c15c8716ca6eda0b1c2e20434464e9f78c9f154 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:18:16,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:18:16,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:18:16,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:18:16,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:18:17,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:18:17,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:18:17,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:18:17,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:18:17,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:18:17,028 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:18:17,029 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:18:17,029 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:18:17,030 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:18:17,030 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:18:17,031 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:18:17,031 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:18:17,032 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:18:17,032 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:18:17,033 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:18:17,034 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:18:17,034 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:18:17,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:18:17,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:18:17,036 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:18:17,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:18:17,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:18:17,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:18:17,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:18:17,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:18:17,040 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:18:17,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:18:17,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:18:17,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:17,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:18:17,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:18:17,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:18:17,042 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:18:17,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:18:17,043 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:18:17,043 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:18:17,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:18:17,044 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_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eefd235ee9286fb26972c9330c15c8716ca6eda0b1c2e20434464e9f78c9f154 [2023-11-19 04:18:17,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:18:17,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:18:17,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:18:17,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:18:17,388 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:18:17,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-19 04:18:20,479 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:18:21,200 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:18:21,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-19 04:18:21,268 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/data/8b446a97f/02faa70c2a7f4df384f953431a7baf3d/FLAG1656dcfac [2023-11-19 04:18:21,283 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/data/8b446a97f/02faa70c2a7f4df384f953431a7baf3d [2023-11-19 04:18:21,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:18:21,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:18:21,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:21,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:18:21,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:18:21,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:21" (1/1) ... [2023-11-19 04:18:21,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab640e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:21, skipping insertion in model container [2023-11-19 04:18:21,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:21" (1/1) ... [2023-11-19 04:18:21,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:18:24,392 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_f1b16be1-7454-4e00-adad-61e19b26dd16/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[429142,429155] [2023-11-19 04:18:24,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:24,643 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:18:24,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7999] [2023-11-19 04:18:24,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [8002] [2023-11-19 04:18:24,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [8005] [2023-11-19 04:18:24,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [8008] [2023-11-19 04:18:25,264 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_f1b16be1-7454-4e00-adad-61e19b26dd16/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[429142,429155] [2023-11-19 04:18:25,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:18:25,492 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:18:25,500 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:18:25,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25 WrapperNode [2023-11-19 04:18:25,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:18:25,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:25,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:18:25,504 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:18:25,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:25,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:25,888 INFO L138 Inliner]: procedures = 276, calls = 3733, calls flagged for inlining = 107, calls inlined = 96, statements flattened = 7668 [2023-11-19 04:18:25,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:18:25,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:18:25,890 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:18:25,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:18:25,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:25,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:25,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:25,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:26,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:26,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:26,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:26,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:26,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:18:26,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:18:26,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:18:26,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:18:26,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (1/1) ... [2023-11-19 04:18:26,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:18:26,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:18:26,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:18:26,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1b16be1-7454-4e00-adad-61e19b26dd16/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:18:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-19 04:18:26,333 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-19 04:18:26,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:18:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:18:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:18:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:18:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2023-11-19 04:18:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2023-11-19 04:18:26,336 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2023-11-19 04:18:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2023-11-19 04:18:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2023-11-19 04:18:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2023-11-19 04:18:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:18:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:18:26,337 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2023-11-19 04:18:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2023-11-19 04:18:26,338 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2023-11-19 04:18:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2023-11-19 04:18:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifioff_hwcfg [2023-11-19 04:18:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifioff_hwcfg [2023-11-19 04:18:26,339 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2023-11-19 04:18:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2023-11-19 04:18:26,340 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-19 04:18:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-19 04:18:26,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:18:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:18:26,341 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_lps_notify [2023-11-19 04:18:26,341 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_lps_notify [2023-11-19 04:18:26,341 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2023-11-19 04:18:26,341 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2023-11-19 04:18:26,342 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_media_status_notify [2023-11-19 04:18:26,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_media_status_notify [2023-11-19 04:18:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:18:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2023-11-19 04:18:26,343 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2023-11-19 04:18:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2023-11-19 04:18:26,343 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2023-11-19 04:18:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2023-11-19 04:18:26,343 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2023-11-19 04:18:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2023-11-19 04:18:26,344 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2023-11-19 04:18:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:18:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2023-11-19 04:18:26,344 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2023-11-19 04:18:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2023-11-19 04:18:26,344 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2023-11-19 04:18:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-19 04:18:26,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-19 04:18:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2023-11-19 04:18:26,345 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2023-11-19 04:18:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_init_hwconfig [2023-11-19 04:18:26,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_init_hwconfig [2023-11-19 04:18:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2023-11-19 04:18:26,345 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2023-11-19 04:18:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 04:18:26,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 04:18:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:18:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:18:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2023-11-19 04:18:26,347 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2023-11-19 04:18:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:18:26,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:18:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2023-11-19 04:18:26,348 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2023-11-19 04:18:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-19 04:18:26,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-19 04:18:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2023-11-19 04:18:26,349 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2023-11-19 04:18:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2023-11-19 04:18:26,349 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2023-11-19 04:18:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-19 04:18:26,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-19 04:18:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:18:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_ant_path [2023-11-19 04:18:26,350 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_ant_path [2023-11-19 04:18:26,350 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_init_coex_dm [2023-11-19 04:18:26,350 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_init_coex_dm [2023-11-19 04:18:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2023-11-19 04:18:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2023-11-19 04:18:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 04:18:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 04:18:26,351 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2023-11-19 04:18:26,351 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2023-11-19 04:18:26,352 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2023-11-19 04:18:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2023-11-19 04:18:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-19 04:18:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-19 04:18:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:18:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2023-11-19 04:18:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2023-11-19 04:18:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:18:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:18:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:18:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:18:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-19 04:18:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-19 04:18:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:18:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2023-11-19 04:18:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2023-11-19 04:18:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:18:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:18:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2023-11-19 04:18:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2023-11-19 04:18:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:18:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2023-11-19 04:18:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2023-11-19 04:18:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2023-11-19 04:18:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2023-11-19 04:18:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:18:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-19 04:18:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-19 04:18:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:18:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2023-11-19 04:18:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2023-11-19 04:18:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2023-11-19 04:18:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2023-11-19 04:18:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2023-11-19 04:18:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2023-11-19 04:18:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2023-11-19 04:18:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2023-11-19 04:18:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2023-11-19 04:18:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2023-11-19 04:18:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-19 04:18:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-19 04:18:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2023-11-19 04:18:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2023-11-19 04:18:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_special_packet_notify [2023-11-19 04:18:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_special_packet_notify [2023-11-19 04:18:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2023-11-19 04:18:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2023-11-19 04:18:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2023-11-19 04:18:26,435 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2023-11-19 04:18:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2023-11-19 04:18:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2023-11-19 04:18:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:18:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2023-11-19 04:18:26,436 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2023-11-19 04:18:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:18:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:18:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-19 04:18:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-19 04:18:27,261 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:18:27,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:18:29,733 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:18:35,852 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:18:41,148 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:18:41,148 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 04:18:41,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:41 BoogieIcfgContainer [2023-11-19 04:18:41,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:18:41,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:18:41,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:18:41,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:18:41,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:18:21" (1/3) ... [2023-11-19 04:18:41,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2829b46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:41, skipping insertion in model container [2023-11-19 04:18:41,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:25" (2/3) ... [2023-11-19 04:18:41,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2829b46c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:41, skipping insertion in model container [2023-11-19 04:18:41,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:41" (3/3) ... [2023-11-19 04:18:41,178 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-19 04:18:41,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:18:41,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:18:41,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:18:41,321 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;@627a5671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:18:41,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:18:41,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 2747 states, 1716 states have (on average 1.406177156177156) internal successors, (2413), 1830 states have internal predecessors, (2413), 966 states have call successors, (966), 64 states have call predecessors, (966), 63 states have return successors, (963), 871 states have call predecessors, (963), 963 states have call successors, (963) [2023-11-19 04:18:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 04:18:41,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:18:41,348 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] [2023-11-19 04:18:41,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:18:41,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:18:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash 759552280, now seen corresponding path program 1 times [2023-11-19 04:18:41,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:18:41,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996841395] [2023-11-19 04:18:41,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:41,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:18:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:18:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-19 04:18:42,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:18:42,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996841395] [2023-11-19 04:18:42,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996841395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:18:42,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:18:42,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:18:42,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35371688] [2023-11-19 04:18:42,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:18:42,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:18:42,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:18:42,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:18:42,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:18:42,593 INFO L87 Difference]: Start difference. First operand has 2747 states, 1716 states have (on average 1.406177156177156) internal successors, (2413), 1830 states have internal predecessors, (2413), 966 states have call successors, (966), 64 states have call predecessors, (966), 63 states have return successors, (963), 871 states have call predecessors, (963), 963 states have call successors, (963) 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) [2023-11-19 04:18:44,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:18:46,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:18:48,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:18:51,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:18:53,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:18:55,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:18:57,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:18:58,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:18:58,913 INFO L93 Difference]: Finished difference Result 7788 states and 12301 transitions. [2023-11-19 04:18:58,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:18:58,916 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 [2023-11-19 04:18:58,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:18:59,018 INFO L225 Difference]: With dead ends: 7788 [2023-11-19 04:18:59,018 INFO L226 Difference]: Without dead ends: 4800 [2023-11-19 04:18:59,127 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 [2023-11-19 04:18:59,131 INFO L413 NwaCegarLoop]: 3846 mSDtfsCounter, 4061 mSDsluCounter, 3840 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4061 SdHoareTripleChecker+Valid, 7686 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:18:59,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4061 Valid, 7686 Invalid, 565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 553 Invalid, 5 Unknown, 0 Unchecked, 15.6s Time] [2023-11-19 04:18:59,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2023-11-19 04:18:59,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4800. [2023-11-19 04:18:59,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4800 states, 3065 states have (on average 1.39836867862969) internal successors, (4286), 3223 states have internal predecessors, (4286), 1650 states have call successors, (1650), 85 states have call predecessors, (1650), 84 states have return successors, (1647), 1513 states have call predecessors, (1647), 1647 states have call successors, (1647) [2023-11-19 04:19:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 7583 transitions. [2023-11-19 04:19:00,106 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 7583 transitions. Word has length 58 [2023-11-19 04:19:00,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:19:00,107 INFO L495 AbstractCegarLoop]: Abstraction has 4800 states and 7583 transitions. [2023-11-19 04:19:00,108 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) [2023-11-19 04:19:00,108 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 7583 transitions. [2023-11-19 04:19:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 04:19:00,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:19:00,116 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] [2023-11-19 04:19:00,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:19:00,117 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:19:00,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:19:00,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1224703094, now seen corresponding path program 1 times [2023-11-19 04:19:00,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:19:00,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100833909] [2023-11-19 04:19:00,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:19:00,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:19:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:19:00,661 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-19 04:19:00,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:19:00,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100833909] [2023-11-19 04:19:00,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100833909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:19:00,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:19:00,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:19:00,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737791123] [2023-11-19 04:19:00,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:19:00,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:19:00,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:19:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:19:00,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:19:00,665 INFO L87 Difference]: Start difference. First operand 4800 states and 7583 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-19 04:19:02,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:19:04,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:19:06,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:19:07,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:19:07,481 INFO L93 Difference]: Finished difference Result 9579 states and 15136 transitions. [2023-11-19 04:19:07,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:19:07,481 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), 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 61 [2023-11-19 04:19:07,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:19:07,559 INFO L225 Difference]: With dead ends: 9579 [2023-11-19 04:19:07,559 INFO L226 Difference]: Without dead ends: 4799 [2023-11-19 04:19:07,632 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 [2023-11-19 04:19:07,635 INFO L413 NwaCegarLoop]: 3559 mSDtfsCounter, 3815 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3815 SdHoareTripleChecker+Valid, 3559 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:19:07,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3815 Valid, 3559 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-11-19 04:19:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4799 states. [2023-11-19 04:19:08,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4799 to 4799. [2023-11-19 04:19:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4799 states, 3064 states have (on average 1.3975195822454307) internal successors, (4282), 3222 states have internal predecessors, (4282), 1650 states have call successors, (1650), 85 states have call predecessors, (1650), 84 states have return successors, (1647), 1513 states have call predecessors, (1647), 1647 states have call successors, (1647) [2023-11-19 04:19:08,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4799 states to 4799 states and 7579 transitions. [2023-11-19 04:19:08,182 INFO L78 Accepts]: Start accepts. Automaton has 4799 states and 7579 transitions. Word has length 61 [2023-11-19 04:19:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:19:08,183 INFO L495 AbstractCegarLoop]: Abstraction has 4799 states and 7579 transitions. [2023-11-19 04:19:08,184 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), 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) [2023-11-19 04:19:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 4799 states and 7579 transitions. [2023-11-19 04:19:08,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 04:19:08,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:19:08,192 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:19:08,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:19:08,194 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:19:08,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:19:08,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1412102170, now seen corresponding path program 1 times [2023-11-19 04:19:08,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:19:08,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323811973] [2023-11-19 04:19:08,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:19:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:19:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:19:08,681 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-19 04:19:08,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:19:08,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323811973] [2023-11-19 04:19:08,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323811973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:19:08,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:19:08,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:19:08,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187485622] [2023-11-19 04:19:08,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:19:08,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:19:08,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:19:08,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:19:08,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:19:08,700 INFO L87 Difference]: Start difference. First operand 4799 states and 7579 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)