./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 45d50512968d8a5bc3a4421084a535ec5be167ebcbc64243053751565ac4780e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:24:00,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:24:00,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:24:00,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:24:00,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:24:00,845 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:24:00,846 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:24:00,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:24:00,847 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:24:00,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:24:00,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:24:00,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:24:00,850 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:24:00,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:24:00,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:24:00,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:24:00,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:24:00,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:24:00,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:24:00,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:24:00,854 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:24:00,855 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:24:00,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:24:00,856 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:24:00,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:24:00,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:00,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:24:00,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:24:00,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:24:00,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:24:00,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:24:00,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:24:00,862 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:24:00,862 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:24:00,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:24:00,863 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:24:00,864 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d50512968d8a5bc3a4421084a535ec5be167ebcbc64243053751565ac4780e [2023-11-12 02:24:01,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:24:01,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:24:01,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:24:01,225 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:24:01,226 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:24:01,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-12 02:24:04,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:24:05,238 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:24:05,239 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-12 02:24:05,325 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/data/83cfb8f2e/157571244f7748e4941b72c4cc666de3/FLAG15ea8eada [2023-11-12 02:24:05,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/data/83cfb8f2e/157571244f7748e4941b72c4cc666de3 [2023-11-12 02:24:05,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:24:05,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:24:05,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:05,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:24:05,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:24:05,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:05" (1/1) ... [2023-11-12 02:24:05,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25af3c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:05, skipping insertion in model container [2023-11-12 02:24:05,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:05" (1/1) ... [2023-11-12 02:24:05,558 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:24:06,402 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_4c5f9c97-49b4-4a82-88e7-472087833d42/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[212867,212880] [2023-11-12 02:24:08,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:08,166 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:24:08,429 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_4c5f9c97-49b4-4a82-88e7-472087833d42/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i[212867,212880] [2023-11-12 02:24:08,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [13048] [2023-11-12 02:24:08,850 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13051] [2023-11-12 02:24:08,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13054] [2023-11-12 02:24:08,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13057] [2023-11-12 02:24:08,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:09,010 WARN L672 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:09,011 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:09,019 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:24:09,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09 WrapperNode [2023-11-12 02:24:09,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:09,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:09,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:24:09,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:24:09,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,436 INFO L138 Inliner]: procedures = 241, calls = 3359, calls flagged for inlining = 111, calls inlined = 96, statements flattened = 7524 [2023-11-12 02:24:09,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:09,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:24:09,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:24:09,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:24:09,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:24:09,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:24:09,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:24:09,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:24:09,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (1/1) ... [2023-11-12 02:24:09,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:09,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:09,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:24:09,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5f9c97-49b4-4a82-88e7-472087833d42/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:24:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-12 02:24:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-12 02:24:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:24:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:24:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_1byte [2023-11-12 02:24:10,003 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_1byte [2023-11-12 02:24:10,003 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2023-11-12 02:24:10,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2023-11-12 02:24:10,005 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2023-11-12 02:24:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2023-11-12 02:24:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2023-11-12 02:24:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2023-11-12 02:24:10,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:24:10,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:24:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2023-11-12 02:24:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2023-11-12 02:24:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2023-11-12 02:24:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2023-11-12 02:24:10,007 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2023-11-12 02:24:10,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2023-11-12 02:24:10,008 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-12 02:24:10,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-12 02:24:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:24:10,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:24:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_med_stat_notify [2023-11-12 02:24:10,009 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_med_stat_notify [2023-11-12 02:24:10,009 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2023-11-12 02:24:10,010 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2023-11-12 02:24:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:24:10,011 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2023-11-12 02:24:10,011 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2023-11-12 02:24:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2023-11-12 02:24:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2023-11-12 02:24:10,012 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2023-11-12 02:24:10,012 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2023-11-12 02:24:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2023-11-12 02:24:10,013 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2023-11-12 02:24:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:24:10,013 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2023-11-12 02:24:10,013 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2023-11-12 02:24:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2023-11-12 02:24:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2023-11-12 02:24:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-12 02:24:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-12 02:24:10,014 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2023-11-12 02:24:10,014 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2023-11-12 02:24:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2023-11-12 02:24:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2023-11-12 02:24:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-12 02:24:10,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-12 02:24:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2023-11-12 02:24:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2023-11-12 02:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 02:24:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 02:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2023-11-12 02:24:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2023-11-12 02:24:10,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 02:24:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 02:24:10,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-12 02:24:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-12 02:24:10,018 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2023-11-12 02:24:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2023-11-12 02:24:10,019 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2023-11-12 02:24:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2023-11-12 02:24:10,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-12 02:24:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-12 02:24:10,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:24:10,020 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2023-11-12 02:24:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2023-11-12 02:24:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-12 02:24:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-12 02:24:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2023-11-12 02:24:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2023-11-12 02:24:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2023-11-12 02:24:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2023-11-12 02:24:10,023 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-12 02:24:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-12 02:24:10,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:24:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2023-11-12 02:24:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2023-11-12 02:24:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:24:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:24:10,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-12 02:24:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-12 02:24:10,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:24:10,025 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2023-11-12 02:24:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2023-11-12 02:24:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2023-11-12 02:24:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2023-11-12 02:24:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:24:10,026 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2023-11-12 02:24:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2023-11-12 02:24:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2023-11-12 02:24:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2023-11-12 02:24:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:24:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-12 02:24:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-12 02:24:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 02:24:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2023-11-12 02:24:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2023-11-12 02:24:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2023-11-12 02:24:10,028 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2023-11-12 02:24:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2023-11-12 02:24:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2023-11-12 02:24:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2023-11-12 02:24:10,029 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2023-11-12 02:24:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2023-11-12 02:24:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2023-11-12 02:24:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-12 02:24:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-12 02:24:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2023-11-12 02:24:10,030 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2023-11-12 02:24:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2023-11-12 02:24:10,031 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2023-11-12 02:24:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2023-11-12 02:24:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2023-11-12 02:24:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u8~0~TO~VOID [2023-11-12 02:24:10,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u8~0~TO~VOID [2023-11-12 02:24:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2023-11-12 02:24:10,033 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2023-11-12 02:24:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:24:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-11-12 02:24:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2023-11-12 02:24:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2023-11-12 02:24:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:24:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:24:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-12 02:24:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-12 02:24:10,899 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:24:10,904 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:24:13,672 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:24:20,180 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:24:20,214 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:24:20,215 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 02:24:20,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:20 BoogieIcfgContainer [2023-11-12 02:24:20,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:24:20,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:24:20,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:24:20,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:24:20,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:24:05" (1/3) ... [2023-11-12 02:24:20,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3def37c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:20, skipping insertion in model container [2023-11-12 02:24:20,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:09" (2/3) ... [2023-11-12 02:24:20,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3def37c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:20, skipping insertion in model container [2023-11-12 02:24:20,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:20" (3/3) ... [2023-11-12 02:24:20,234 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtlwifi--btcoexist--btcoexist.ko-entry_point.cil.out.i [2023-11-12 02:24:20,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:24:20,255 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:24:20,393 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:24:20,404 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=PETRI_NET, 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;@3f1c6d88, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:24:20,406 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:24:20,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 3305 states, 2320 states have (on average 1.5064655172413792) internal successors, (3495), 2431 states have internal predecessors, (3495), 926 states have call successors, (926), 58 states have call predecessors, (926), 57 states have return successors, (923), 831 states have call predecessors, (923), 923 states have call successors, (923) [2023-11-12 02:24:20,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:24:20,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:20,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:20,444 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:20,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:20,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1739169907, now seen corresponding path program 1 times [2023-11-12 02:24:20,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:20,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661799772] [2023-11-12 02:24:20,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:20,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:21,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:21,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:21,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661799772] [2023-11-12 02:24:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661799772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:21,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:21,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:24:21,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127121038] [2023-11-12 02:24:21,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:21,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:21,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:21,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:21,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:21,441 INFO L87 Difference]: Start difference. First operand has 3305 states, 2320 states have (on average 1.5064655172413792) internal successors, (3495), 2431 states have internal predecessors, (3495), 926 states have call successors, (926), 58 states have call predecessors, (926), 57 states have return successors, (923), 831 states have call predecessors, (923), 923 states have call successors, (923) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:24:31,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:31,772 INFO L93 Difference]: Finished difference Result 9130 states and 14957 transitions. [2023-11-12 02:24:31,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:24:31,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-11-12 02:24:31,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:31,898 INFO L225 Difference]: With dead ends: 9130 [2023-11-12 02:24:31,899 INFO L226 Difference]: Without dead ends: 5521 [2023-11-12 02:24:32,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:24:32,021 INFO L413 NwaCegarLoop]: 4564 mSDtfsCounter, 5301 mSDsluCounter, 6609 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 1885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5688 SdHoareTripleChecker+Valid, 11173 SdHoareTripleChecker+Invalid, 4390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1885 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:32,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5688 Valid, 11173 Invalid, 4390 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1885 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-11-12 02:24:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2023-11-12 02:24:32,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5361. [2023-11-12 02:24:32,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5361 states, 3830 states have (on average 1.514360313315927) internal successors, (5800), 3980 states have internal predecessors, (5800), 1468 states have call successors, (1468), 63 states have call predecessors, (1468), 62 states have return successors, (1467), 1337 states have call predecessors, (1467), 1467 states have call successors, (1467) [2023-11-12 02:24:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8735 transitions. [2023-11-12 02:24:32,920 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8735 transitions. Word has length 24 [2023-11-12 02:24:32,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:32,922 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 8735 transitions. [2023-11-12 02:24:32,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:24:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8735 transitions. [2023-11-12 02:24:32,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 02:24:32,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:32,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:32,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:24:32,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:32,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash 791302264, now seen corresponding path program 1 times [2023-11-12 02:24:32,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:32,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763442502] [2023-11-12 02:24:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:32,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:33,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:33,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:24:33,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:33,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763442502] [2023-11-12 02:24:33,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763442502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:33,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:33,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:33,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948301387] [2023-11-12 02:24:33,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:33,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:24:33,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:24:33,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:24:33,455 INFO L87 Difference]: Start difference. First operand 5361 states and 8735 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:24:35,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:24:36,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:24:43,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:43,580 INFO L93 Difference]: Finished difference Result 10873 states and 17817 transitions. [2023-11-12 02:24:43,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:24:43,582 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-12 02:24:43,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:43,692 INFO L225 Difference]: With dead ends: 10873 [2023-11-12 02:24:43,692 INFO L226 Difference]: Without dead ends: 5520 [2023-11-12 02:24:43,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:24:43,767 INFO L413 NwaCegarLoop]: 4742 mSDtfsCounter, 4974 mSDsluCounter, 6461 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 1007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5280 SdHoareTripleChecker+Valid, 11203 SdHoareTripleChecker+Invalid, 3534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:43,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5280 Valid, 11203 Invalid, 3534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1007 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-11-12 02:24:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2023-11-12 02:24:44,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5360. [2023-11-12 02:24:44,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 3829 states have (on average 1.5137111517367459) internal successors, (5796), 3979 states have internal predecessors, (5796), 1468 states have call successors, (1468), 63 states have call predecessors, (1468), 62 states have return successors, (1467), 1337 states have call predecessors, (1467), 1467 states have call successors, (1467) [2023-11-12 02:24:44,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 8731 transitions. [2023-11-12 02:24:44,485 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 8731 transitions. Word has length 27 [2023-11-12 02:24:44,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:44,487 INFO L495 AbstractCegarLoop]: Abstraction has 5360 states and 8731 transitions. [2023-11-12 02:24:44,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:24:44,487 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 8731 transitions. [2023-11-12 02:24:44,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 02:24:44,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:44,496 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-12 02:24:44,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:24:44,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:24:44,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash -691474231, now seen corresponding path program 1 times [2023-11-12 02:24:44,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:44,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489613475] [2023-11-12 02:24:44,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:44,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-12 02:24:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-12 02:24:45,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:45,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489613475] [2023-11-12 02:24:45,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489613475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:45,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:45,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:24:45,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246447480] [2023-11-12 02:24:45,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:45,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:45,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:45,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:45,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:45,128 INFO L87 Difference]: Start difference. First operand 5360 states and 8731 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:24:47,283 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 []