./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/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_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu --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-9bd2c7f [2023-11-19 07:45:56,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:56,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:45:56,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:56,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:56,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:56,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:56,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:56,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:56,974 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:56,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:56,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:56,976 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:56,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:56,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:45:56,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:56,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:56,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:45:56,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:56,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:45:56,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:56,982 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:56,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:56,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:56,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:56,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:56,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:56,986 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:56,986 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:45:56,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:56,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:56,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:56,988 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:45:56,989 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:56,989 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:56,990 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:56,991 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_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45d50512968d8a5bc3a4421084a535ec5be167ebcbc64243053751565ac4780e [2023-11-19 07:45:57,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:57,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:57,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:57,317 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:57,320 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:57,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/../../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 [2023-11-19 07:46:00,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:01,341 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:01,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/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 [2023-11-19 07:46:01,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/data/4737907c7/84241985460549c391d693ec9768a67e/FLAG7f00bc67b [2023-11-19 07:46:01,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/data/4737907c7/84241985460549c391d693ec9768a67e [2023-11-19 07:46:01,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:01,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:01,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:01,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:01,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:01,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:01" (1/1) ... [2023-11-19 07:46:01,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47b46715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:01, skipping insertion in model container [2023-11-19 07:46:01,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:01" (1/1) ... [2023-11-19 07:46:01,642 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:02,524 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_29a979b1-6634-41f5-a945-f810b691fc58/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] [2023-11-19 07:46:04,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:04,507 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:04,748 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_29a979b1-6634-41f5-a945-f810b691fc58/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] [2023-11-19 07:46:05,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [13048] [2023-11-19 07:46:05,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13051] [2023-11-19 07:46:05,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13054] [2023-11-19 07:46:05,185 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13057] [2023-11-19 07:46:05,216 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:05,375 WARN L675 CHandler]: The function __VERIFIER_nondet_u8 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:05,375 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:05,384 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:05,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05 WrapperNode [2023-11-19 07:46:05,385 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:05,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:05,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:05,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:05,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:05,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:05,818 INFO L138 Inliner]: procedures = 241, calls = 3359, calls flagged for inlining = 111, calls inlined = 96, statements flattened = 7524 [2023-11-19 07:46:05,818 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:05,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:05,819 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:05,819 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:05,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:05,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:05,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:05,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:06,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:06,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:06,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:06,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:06,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:06,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:06,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:06,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:06,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (1/1) ... [2023-11-19 07:46:06,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:06,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:06,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:06,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29a979b1-6634-41f5-a945-f810b691fc58/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:06,369 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-19 07:46:06,369 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_fw_ps_tdma [2023-11-19 07:46:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:46:06,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:46:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_1byte [2023-11-19 07:46:06,370 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_1byte [2023-11-19 07:46:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2023-11-19 07:46:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2023-11-19 07:46:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_nomal_low_power [2023-11-19 07:46:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_nomal_low_power [2023-11-19 07:46:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2023-11-19 07:46:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2023-11-19 07:46:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:46:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:46:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_wifi_uplink [2023-11-19 07:46:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_wifi_uplink [2023-11-19 07:46:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2023-11-19 07:46:06,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2023-11-19 07:46:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2023-11-19 07:46:06,374 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2023-11-19 07:46:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-19 07:46:06,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~$Pointer$~TO~VOID [2023-11-19 07:46:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:46:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:46:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_med_stat_notify [2023-11-19 07:46:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_med_stat_notify [2023-11-19 07:46:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ps_tdma [2023-11-19 07:46:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ps_tdma [2023-11-19 07:46:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_tdma_duration_adjust [2023-11-19 07:46:06,378 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_tdma_duration_adjust [2023-11-19 07:46:06,379 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_ignore_wlan_act [2023-11-19 07:46:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_ignore_wlan_act [2023-11-19 07:46:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2023-11-19 07:46:06,380 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2023-11-19 07:46:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_4byte [2023-11-19 07:46:06,380 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_4byte [2023-11-19 07:46:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:46:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_4byte [2023-11-19 07:46:06,381 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_4byte [2023-11-19 07:46:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_get_wifi_rssi [2023-11-19 07:46:06,381 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_get_wifi_rssi [2023-11-19 07:46:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-19 07:46:06,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u16~0~TO~VOID [2023-11-19 07:46:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_scan_notify [2023-11-19 07:46:06,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_scan_notify [2023-11-19 07:46:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_low_power [2023-11-19 07:46:06,382 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_low_power [2023-11-19 07:46:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 07:46:06,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 07:46:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:06,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:46:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_connect_notify [2023-11-19 07:46:06,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_connect_notify [2023-11-19 07:46:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:46:06,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:46:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_wifi_rssi_state [2023-11-19 07:46:06,383 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_wifi_rssi_state [2023-11-19 07:46:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:46:06,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:46:06,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-19 07:46:06,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u8~0~TO~VOID [2023-11-19 07:46:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_dec_bt_pwr [2023-11-19 07:46:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_dec_bt_pwr [2023-11-19 07:46:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_set_dac_swing_reg [2023-11-19 07:46:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_set_dac_swing_reg [2023-11-19 07:46:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-19 07:46:06,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2023-11-19 07:46:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_alloff [2023-11-19 07:46:06,388 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_alloff [2023-11-19 07:46:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 07:46:06,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u32~0~X~~u32~0~X~~u32~0~TO~VOID [2023-11-19 07:46:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_bt_rssi_state [2023-11-19 07:46:06,389 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_bt_rssi_state [2023-11-19 07:46:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_coex_tbl_type [2023-11-19 07:46:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_coex_tbl_type [2023-11-19 07:46:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-19 07:46:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2023-11-19 07:46:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_enter_lps [2023-11-19 07:46:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_enter_lps [2023-11-19 07:46:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:46:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:46:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-19 07:46:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2023-11-19 07:46:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:46:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_1byte [2023-11-19 07:46:06,392 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_1byte [2023-11-19 07:46:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_is_bt_coexist_available [2023-11-19 07:46:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_is_bt_coexist_available [2023-11-19 07:46:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism1 [2023-11-19 07:46:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism1 [2023-11-19 07:46:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_sw_mechanism2 [2023-11-19 07:46:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_sw_mechanism2 [2023-11-19 07:46:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:46:06,394 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-19 07:46:06,394 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_fw_dac_swing_lvl [2023-11-19 07:46:06,394 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:46:06,394 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_fill_h2c_cmd [2023-11-19 07:46:06,394 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_fill_h2c_cmd [2023-11-19 07:46:06,394 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b_need_dec_pwr [2023-11-19 07:46:06,394 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b_need_dec_pwr [2023-11-19 07:46:06,395 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_coex_table [2023-11-19 07:46:06,395 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_coex_table [2023-11-19 07:46:06,395 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_leave_lps [2023-11-19 07:46:06,395 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_leave_lps [2023-11-19 07:46:06,395 INFO L130 BoogieDeclarations]: Found specification of procedure btc8723b2ant_run_coexist_mechanism [2023-11-19 07:46:06,396 INFO L138 BoogieDeclarations]: Found implementation of procedure btc8723b2ant_run_coexist_mechanism [2023-11-19 07:46:06,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-19 07:46:06,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~~bool~0 [2023-11-19 07:46:06,396 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_btc_ips_notify [2023-11-19 07:46:06,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_btc_ips_notify [2023-11-19 07:46:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2023-11-19 07:46:06,397 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2023-11-19 07:46:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_write_2byte [2023-11-19 07:46:06,398 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_write_2byte [2023-11-19 07:46:06,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u8~0~TO~VOID [2023-11-19 07:46:06,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u8~0~TO~VOID [2023-11-19 07:46:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_read_2byte [2023-11-19 07:46:06,399 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_read_2byte [2023-11-19 07:46:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2023-11-19 07:46:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure halbtc_set [2023-11-19 07:46:06,400 INFO L138 BoogieDeclarations]: Found implementation of procedure halbtc_set [2023-11-19 07:46:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:06,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-19 07:46:06,401 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-19 07:46:07,270 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:07,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:09,619 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:46:15,781 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:15,828 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:15,829 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:46:15,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:15 BoogieIcfgContainer [2023-11-19 07:46:15,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:15,857 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:15,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:15,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:15,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:01" (1/3) ... [2023-11-19 07:46:15,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0fbe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:15, skipping insertion in model container [2023-11-19 07:46:15,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:05" (2/3) ... [2023-11-19 07:46:15,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0fbe1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:15, skipping insertion in model container [2023-11-19 07:46:15,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:15" (3/3) ... [2023-11-19 07:46:15,866 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 [2023-11-19 07:46:15,887 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:15,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:46:16,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:16,042 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;@299db583, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:16,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:46:16,063 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) [2023-11-19 07:46:16,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:46:16,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:16,078 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] [2023-11-19 07:46:16,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:16,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:16,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1739169907, now seen corresponding path program 1 times [2023-11-19 07:46:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:16,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534818158] [2023-11-19 07:46:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:16,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:17,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:46:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:17,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:17,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:17,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534818158] [2023-11-19 07:46:17,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534818158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:17,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:17,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:46:17,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964763237] [2023-11-19 07:46:17,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:17,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:46:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:17,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:46:17,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:46:17,123 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) [2023-11-19 07:46:27,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:27,613 INFO L93 Difference]: Finished difference Result 9130 states and 14957 transitions. [2023-11-19 07:46:27,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:27,616 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 [2023-11-19 07:46:27,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:27,761 INFO L225 Difference]: With dead ends: 9130 [2023-11-19 07:46:27,762 INFO L226 Difference]: Without dead ends: 5521 [2023-11-19 07:46:27,902 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 [2023-11-19 07:46:27,906 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 5301 mSDsluCounter, 6589 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 1885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5701 SdHoareTripleChecker+Valid, 11140 SdHoareTripleChecker+Invalid, 4390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1885 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:27,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5701 Valid, 11140 Invalid, 4390 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1885 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-11-19 07:46:27,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2023-11-19 07:46:28,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5361. [2023-11-19 07:46:28,637 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) [2023-11-19 07:46:28,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8735 transitions. [2023-11-19 07:46:28,715 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8735 transitions. Word has length 24 [2023-11-19 07:46:28,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:28,716 INFO L495 AbstractCegarLoop]: Abstraction has 5361 states and 8735 transitions. [2023-11-19 07:46:28,717 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) [2023-11-19 07:46:28,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8735 transitions. [2023-11-19 07:46:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 07:46:28,720 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:28,720 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] [2023-11-19 07:46:28,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:46:28,721 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:28,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 791302264, now seen corresponding path program 1 times [2023-11-19 07:46:28,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:28,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168189718] [2023-11-19 07:46:28,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:28,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:29,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:46:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:29,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:46:29,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:29,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168189718] [2023-11-19 07:46:29,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168189718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:29,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:29,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:46:29,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351392830] [2023-11-19 07:46:29,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:29,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:46:29,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:29,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:46:29,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:46:29,185 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) [2023-11-19 07:46:32,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 07:46:38,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:38,086 INFO L93 Difference]: Finished difference Result 10873 states and 17817 transitions. [2023-11-19 07:46:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:46:38,086 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 [2023-11-19 07:46:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:38,180 INFO L225 Difference]: With dead ends: 10873 [2023-11-19 07:46:38,180 INFO L226 Difference]: Without dead ends: 5520 [2023-11-19 07:46:38,245 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 [2023-11-19 07:46:38,246 INFO L413 NwaCegarLoop]: 4747 mSDtfsCounter, 4974 mSDsluCounter, 6471 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 1011 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 11218 SdHoareTripleChecker+Invalid, 3530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1011 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:38,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5275 Valid, 11218 Invalid, 3530 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1011 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-19 07:46:38,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5520 states. [2023-11-19 07:46:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5520 to 5360. [2023-11-19 07:46:38,737 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) [2023-11-19 07:46:38,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 8731 transitions. [2023-11-19 07:46:38,801 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 8731 transitions. Word has length 27 [2023-11-19 07:46:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:38,802 INFO L495 AbstractCegarLoop]: Abstraction has 5360 states and 8731 transitions. [2023-11-19 07:46:38,803 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) [2023-11-19 07:46:38,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 8731 transitions. [2023-11-19 07:46:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:46:38,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:38,815 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] [2023-11-19 07:46:38,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:46:38,815 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:46:38,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:38,816 INFO L85 PathProgramCache]: Analyzing trace with hash -691474231, now seen corresponding path program 1 times [2023-11-19 07:46:38,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:38,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414397772] [2023-11-19 07:46:38,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:38,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:39,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:46:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:39,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 07:46:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:39,535 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-19 07:46:39,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:39,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414397772] [2023-11-19 07:46:39,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414397772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:39,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:39,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:46:39,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023494153] [2023-11-19 07:46:39,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:39,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:46:39,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:39,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:46:39,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:46:39,539 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) [2023-11-19 07:46:40,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []