./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 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_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/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_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/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_41464497-3a7b-4479-834c-577cb6d291b9/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 eefd235ee9286fb26972c9330c15c8716ca6eda0b1c2e20434464e9f78c9f154 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:16:10,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:16:11,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:16:11,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:16:11,125 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:16:11,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:16:11,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:16:11,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:16:11,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:16:11,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:16:11,167 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:16:11,167 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:16:11,168 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:16:11,170 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:16:11,170 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:16:11,171 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:16:11,171 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:16:11,172 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:16:11,172 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:16:11,174 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:16:11,175 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:16:11,175 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:16:11,176 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:16:11,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:16:11,177 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:16:11,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:16:11,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:16:11,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:16:11,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:16:11,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:16:11,180 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:16:11,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:16:11,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:16:11,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:16:11,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:11,182 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:16:11,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:16:11,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:16:11,183 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:16:11,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:16:11,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:16:11,184 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:16:11,184 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:16:11,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:16:11,185 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_41464497-3a7b-4479-834c-577cb6d291b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eefd235ee9286fb26972c9330c15c8716ca6eda0b1c2e20434464e9f78c9f154 [2023-11-23 21:16:11,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:16:11,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:16:11,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:16:11,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:16:11,468 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:16:11,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 21:16:14,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:15,515 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:15,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/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 [2023-11-23 21:16:15,576 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/data/0b3cbe48a/bcaa19883a424575b282cd59e78e7495/FLAG2b1bebf76 [2023-11-23 21:16:15,595 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/data/0b3cbe48a/bcaa19883a424575b282cd59e78e7495 [2023-11-23 21:16:15,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:15,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:15,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:15,609 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:15,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:15,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eb4951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:15, skipping insertion in model container [2023-11-23 21:16:15,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:15" (1/1) ... [2023-11-23 21:16:15,891 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:18,984 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_41464497-3a7b-4479-834c-577cb6d291b9/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] [2023-11-23 21:16:19,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:19,218 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:19,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7999] [2023-11-23 21:16:19,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [8002] [2023-11-23 21:16:19,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [8005] [2023-11-23 21:16:19,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [8008] [2023-11-23 21:16:19,908 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_41464497-3a7b-4479-834c-577cb6d291b9/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] [2023-11-23 21:16:19,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:20,116 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:16:20,126 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:20,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20 WrapperNode [2023-11-23 21:16:20,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:20,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:20,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:20,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:20,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,566 INFO L138 Inliner]: procedures = 276, calls = 3733, calls flagged for inlining = 107, calls inlined = 96, statements flattened = 7668 [2023-11-23 21:16:20,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:20,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:20,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:20,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:20,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,872 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:20,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:21,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:21,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:21,049 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:21,049 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:21,050 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (1/1) ... [2023-11-23 21:16:21,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:21,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:21,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:21,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41464497-3a7b-4479-834c-577cb6d291b9/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:21,124 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-23 21:16:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-23 21:16:21,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:16:21,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:16:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:16:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:16:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2023-11-23 21:16:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2023-11-23 21:16:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2023-11-23 21:16:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2023-11-23 21:16:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2023-11-23 21:16:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2023-11-23 21:16:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:16:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:16:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2023-11-23 21:16:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2023-11-23 21:16:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2023-11-23 21:16:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2023-11-23 21:16:21,126 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifioff_hwcfg [2023-11-23 21:16:21,126 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifioff_hwcfg [2023-11-23 21:16:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2023-11-23 21:16:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2023-11-23 21:16:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-23 21:16:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-23 21:16:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_lps_notify [2023-11-23 21:16:21,127 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_lps_notify [2023-11-23 21:16:21,127 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2023-11-23 21:16:21,128 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2023-11-23 21:16:21,128 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_media_status_notify [2023-11-23 21:16:21,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_media_status_notify [2023-11-23 21:16:21,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:16:21,128 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2023-11-23 21:16:21,128 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2023-11-23 21:16:21,128 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2023-11-23 21:16:21,128 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2023-11-23 21:16:21,129 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2023-11-23 21:16:21,129 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2023-11-23 21:16:21,129 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2023-11-23 21:16:21,129 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2023-11-23 21:16:21,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:16:21,129 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2023-11-23 21:16:21,129 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2023-11-23 21:16:21,129 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2023-11-23 21:16:21,130 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2023-11-23 21:16:21,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-23 21:16:21,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-23 21:16:21,130 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2023-11-23 21:16:21,130 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2023-11-23 21:16:21,130 INFO L130 BoogieDeclarations]: Found specification of procedure ex_btc8723b2ant_init_hwconfig [2023-11-23 21:16:21,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ex_btc8723b2ant_init_hwconfig [2023-11-23 21:16:21,130 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2023-11-23 21:16:21,131 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2023-11-23 21:16:21,131 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-23 21:16:21,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-23 21:16:21,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:16:21,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:16:21,131 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2023-11-23 21:16:21,131 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2023-11-23 21:16:21,131 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:16:21,131 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:16:21,132 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2023-11-23 21:16:21,132 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2023-11-23 21:16:21,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-23 21:16:21,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-23 21:16:21,132 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2023-11-23 21:16:21,132 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2023-11-23 21:16:21,132 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2023-11-23 21:16:21,132 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2023-11-23 21:16:21,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-23 21:16:21,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-23 21:16:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:16:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_ant_path [2023-11-23 21:16:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_ant_path [2023-11-23 21:16:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_init_coex_dm [2023-11-23 21:16:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_init_coex_dm [2023-11-23 21:16:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2023-11-23 21:16:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2023-11-23 21:16:21,133 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 21:16:21,133 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 21:16:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2023-11-23 21:16:21,134 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2023-11-23 21:16:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2023-11-23 21:16:21,134 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2023-11-23 21:16:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-23 21:16:21,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-23 21:16:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:16:21,134 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2023-11-23 21:16:21,134 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2023-11-23 21:16:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:16:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:16:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:16:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:16:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-23 21:16:21,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-23 21:16:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:16:21,135 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2023-11-23 21:16:21,136 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2023-11-23 21:16:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:16:21,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:16:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2023-11-23 21:16:21,136 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2023-11-23 21:16:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2023-11-23 21:16:21,136 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2023-11-23 21:16:21,136 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2023-11-23 21:16:21,137 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2023-11-23 21:16:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:16:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-23 21:16:21,137 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-23 21:16:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:16:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2023-11-23 21:16:21,137 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2023-11-23 21:16:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2023-11-23 21:16:21,137 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2023-11-23 21:16:21,137 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2023-11-23 21:16:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2023-11-23 21:16:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2023-11-23 21:16:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2023-11-23 21:16:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2023-11-23 21:16:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2023-11-23 21:16:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-23 21:16:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-23 21:16:21,138 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2023-11-23 21:16:21,138 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2023-11-23 21:16:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_special_packet_notify [2023-11-23 21:16:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_special_packet_notify [2023-11-23 21:16:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2023-11-23 21:16:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2023-11-23 21:16:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2023-11-23 21:16:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2023-11-23 21:16:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2023-11-23 21:16:21,139 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2023-11-23 21:16:21,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:16:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2023-11-23 21:16:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2023-11-23 21:16:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:21,140 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-23 21:16:21,140 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-23 21:16:21,985 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:21,989 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:24,687 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:16:30,248 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:35,868 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:35,868 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:16:35,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:35 BoogieIcfgContainer [2023-11-23 21:16:35,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:35,876 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:35,878 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:35,882 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:35,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:15" (1/3) ... [2023-11-23 21:16:35,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a4afb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:35, skipping insertion in model container [2023-11-23 21:16:35,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:20" (2/3) ... [2023-11-23 21:16:35,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a4afb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:35, skipping insertion in model container [2023-11-23 21:16:35,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:35" (3/3) ... [2023-11-23 21:16:35,893 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 [2023-11-23 21:16:35,917 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:35,917 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:36,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:36,059 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;@6db6d605, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:36,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:36,080 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) [2023-11-23 21:16:36,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-23 21:16:36,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:36,103 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 21:16:36,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:36,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:36,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1498003921, now seen corresponding path program 1 times [2023-11-23 21:16:36,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:36,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680242917] [2023-11-23 21:16:36,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:36,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:37,254 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 21:16:37,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680242917] [2023-11-23 21:16:37,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680242917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:37,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:37,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:37,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432713575] [2023-11-23 21:16:37,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:37,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:37,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:37,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:37,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:37,337 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) [2023-11-23 21:16:40,745 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 21:16:43,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:45,971 WARN L539 Checker$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 21:16:49,313 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 [] [2023-11-23 21:16:51,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:51,224 INFO L93 Difference]: Finished difference Result 7788 states and 12301 transitions. [2023-11-23 21:16:51,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:51,226 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 21:16:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:51,333 INFO L225 Difference]: With dead ends: 7788 [2023-11-23 21:16:51,334 INFO L226 Difference]: Without dead ends: 4800 [2023-11-23 21:16:51,454 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 21:16:51,460 INFO L413 NwaCegarLoop]: 3846 mSDtfsCounter, 4061 mSDsluCounter, 3840 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4061 SdHoareTripleChecker+Valid, 7686 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:51,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4061 Valid, 7686 Invalid, 565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 555 Invalid, 3 Unknown, 0 Unchecked, 13.0s Time] [2023-11-23 21:16:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4800 states. [2023-11-23 21:16:52,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4800 to 4800. [2023-11-23 21:16:52,247 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) [2023-11-23 21:16:52,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4800 states to 4800 states and 7583 transitions. [2023-11-23 21:16:52,352 INFO L78 Accepts]: Start accepts. Automaton has 4800 states and 7583 transitions. Word has length 58 [2023-11-23 21:16:52,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:52,353 INFO L495 AbstractCegarLoop]: Abstraction has 4800 states and 7583 transitions. [2023-11-23 21:16:52,354 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 21:16:52,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4800 states and 7583 transitions. [2023-11-23 21:16:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 21:16:52,361 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:52,362 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 21:16:52,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:52,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:52,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:52,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2034238002, now seen corresponding path program 1 times [2023-11-23 21:16:52,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:52,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249790856] [2023-11-23 21:16:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:52,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:52,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:52,904 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 21:16:52,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:52,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249790856] [2023-11-23 21:16:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249790856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:52,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:52,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:52,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402469186] [2023-11-23 21:16:52,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:52,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:52,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:52,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:52,909 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) [2023-11-23 21:16:54,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:56,996 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 21:16:59,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:59,296 INFO L93 Difference]: Finished difference Result 9579 states and 15136 transitions. [2023-11-23 21:16:59,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:59,297 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 [2023-11-23 21:16:59,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:59,382 INFO L225 Difference]: With dead ends: 9579 [2023-11-23 21:16:59,382 INFO L226 Difference]: Without dead ends: 4799 [2023-11-23 21:16:59,469 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 21:16:59,471 INFO L413 NwaCegarLoop]: 3559 mSDtfsCounter, 3815 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s 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, 5.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:59,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3815 Valid, 3559 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2023-11-23 21:16:59,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4799 states. [2023-11-23 21:16:59,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4799 to 4799. [2023-11-23 21:17:00,012 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) [2023-11-23 21:17:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4799 states to 4799 states and 7579 transitions. [2023-11-23 21:17:00,077 INFO L78 Accepts]: Start accepts. Automaton has 4799 states and 7579 transitions. Word has length 61 [2023-11-23 21:17:00,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:17:00,077 INFO L495 AbstractCegarLoop]: Abstraction has 4799 states and 7579 transitions. [2023-11-23 21:17:00,078 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) [2023-11-23 21:17:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 4799 states and 7579 transitions. [2023-11-23 21:17:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:17:00,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:17:00,086 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] [2023-11-23 21:17:00,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:17:00,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:17:00,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:17:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash 63742257, now seen corresponding path program 1 times [2023-11-23 21:17:00,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:17:00,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92047772] [2023-11-23 21:17:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:17:00,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:17:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:17:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-23 21:17:00,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:17:00,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92047772] [2023-11-23 21:17:00,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92047772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:17:00,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:17:00,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:17:00,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778183030] [2023-11-23 21:17:00,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:17:00,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:17:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:17:00,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:17:00,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:17:00,551 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)