./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:45:57,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:45:58,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:45:58,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:45:58,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:45:58,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:45:58,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:45:58,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:45:58,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:45:58,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:45:58,189 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:45:58,191 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:45:58,191 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:45:58,193 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:45:58,194 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:45:58,194 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:45:58,195 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:45:58,195 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:45:58,196 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:45:58,197 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:45:58,199 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:45:58,199 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:45:58,201 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:45:58,201 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:45:58,202 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:45:58,202 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:45:58,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:45:58,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:45:58,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:45:58,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:45:58,206 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:45:58,206 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:45:58,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:45:58,207 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:45:58,207 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:45:58,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:45:58,208 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:45:58,208 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:45:58,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:45:58,209 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:45:58,209 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:45:58,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:45:58,210 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cef07d7f0384d28cd6187dbf399ce04548d86cf40895859810995ce7f7f2ba4 [2023-11-19 04:45:58,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:45:58,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:45:58,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:45:58,618 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:45:58,619 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:45:58,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2023-11-19 04:46:02,079 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:46:02,740 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:46:02,741 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2023-11-19 04:46:02,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/data/5da1eaf41/dcb34e1d4df84a6db237185f895cdace/FLAG7a85461fc [2023-11-19 04:46:02,815 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/data/5da1eaf41/dcb34e1d4df84a6db237185f895cdace [2023-11-19 04:46:02,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:46:02,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:46:02,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:02,828 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:46:02,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:46:02,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:02" (1/1) ... [2023-11-19 04:46:02,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78f8ec7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:02, skipping insertion in model container [2023-11-19 04:46:02,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:46:02" (1/1) ... [2023-11-19 04:46:03,115 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:46:05,853 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2023-11-19 04:46:05,861 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2023-11-19 04:46:05,870 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2023-11-19 04:46:05,871 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2023-11-19 04:46:05,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:05,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:46:06,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6219] [2023-11-19 04:46:06,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6222] [2023-11-19 04:46:06,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6225] [2023-11-19 04:46:06,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6228] [2023-11-19 04:46:06,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___0->state): : "memory", "cc"); [6657-6658] [2023-11-19 04:46:06,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [6664-6665] [2023-11-19 04:46:06,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [6671-6672] [2023-11-19 04:46:06,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [6678-6679] [2023-11-19 04:46:06,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___4->state): : "memory", "cc"); [6722-6723] [2023-11-19 04:46:06,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___5->state): : "memory", "cc"); [6729-6730] [2023-11-19 04:46:06,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___6->state): : "memory", "cc"); [6736-6737] [2023-11-19 04:46:06,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___7->state): : "memory", "cc"); [6743-6744] [2023-11-19 04:46:06,412 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2023-11-19 04:46:06,413 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2023-11-19 04:46:06,413 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2023-11-19 04:46:06,414 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_700ccece-acc7-4511-a371-cb16e03fe95c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2023-11-19 04:46:06,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:46:06,541 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:46:06,541 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:46:06,550 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:46:06,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06 WrapperNode [2023-11-19 04:46:06,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:46:06,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:06,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:46:06,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:46:06,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:06,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:06,837 INFO L138 Inliner]: procedures = 325, calls = 936, calls flagged for inlining = 152, calls inlined = 139, statements flattened = 2746 [2023-11-19 04:46:06,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:46:06,839 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:46:06,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:46:06,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:46:06,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:06,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:06,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:06,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:07,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:07,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:07,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:07,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:07,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:46:07,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:46:07,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:46:07,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:46:07,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (1/1) ... [2023-11-19 04:46:07,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:46:07,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:46:07,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:46:07,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_700ccece-acc7-4511-a371-cb16e03fe95c/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:46:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:46:07,348 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:46:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 04:46:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:46:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:46:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:46:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:46:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:46:07,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:46:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 04:46:07,350 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 04:46:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2023-11-19 04:46:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2023-11-19 04:46:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-19 04:46:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-19 04:46:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:46:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:46:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2023-11-19 04:46:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2023-11-19 04:46:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:46:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:46:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2023-11-19 04:46:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2023-11-19 04:46:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2023-11-19 04:46:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2023-11-19 04:46:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:46:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:46:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2023-11-19 04:46:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2023-11-19 04:46:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:46:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-19 04:46:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-19 04:46:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:46:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:46:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:46:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:46:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:46:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2023-11-19 04:46:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2023-11-19 04:46:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:46:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:46:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:46:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:46:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-19 04:46:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-19 04:46:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 04:46:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 04:46:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:46:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:46:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:46:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:46:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 04:46:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 04:46:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2023-11-19 04:46:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2023-11-19 04:46:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:46:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:46:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:46:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2023-11-19 04:46:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2023-11-19 04:46:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:46:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:46:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:46:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:46:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:46:07,362 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2023-11-19 04:46:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2023-11-19 04:46:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 04:46:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 04:46:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:46:07,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:46:07,363 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-19 04:46:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-19 04:46:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2023-11-19 04:46:07,364 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2023-11-19 04:46:07,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:46:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:46:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2023-11-19 04:46:07,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2023-11-19 04:46:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:46:07,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:46:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:46:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:46:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:46:07,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-19 04:46:07,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-19 04:46:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:46:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:46:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:46:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:46:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:46:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-19 04:46:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-19 04:46:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:46:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:46:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:46:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:46:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2023-11-19 04:46:07,369 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2023-11-19 04:46:07,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:46:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:46:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:46:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:46:07,370 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2023-11-19 04:46:07,370 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2023-11-19 04:46:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:46:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:46:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2023-11-19 04:46:07,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2023-11-19 04:46:07,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2023-11-19 04:46:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2023-11-19 04:46:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2023-11-19 04:46:07,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2023-11-19 04:46:07,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:46:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:46:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:46:07,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:46:07,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:46:07,997 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:46:08,004 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:46:08,133 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:46:14,321 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:46:14,701 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:46:15,726 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:46:15,726 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 04:46:15,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:15 BoogieIcfgContainer [2023-11-19 04:46:15,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:46:15,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:46:15,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:46:15,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:46:15,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:46:02" (1/3) ... [2023-11-19 04:46:15,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:15, skipping insertion in model container [2023-11-19 04:46:15,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:46:06" (2/3) ... [2023-11-19 04:46:15,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:46:15, skipping insertion in model container [2023-11-19 04:46:15,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:46:15" (3/3) ... [2023-11-19 04:46:15,768 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2023-11-19 04:46:15,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:46:15,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:46:15,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:46:15,944 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@14522804, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:46:15,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:46:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 801 states, 495 states have (on average 1.3555555555555556) internal successors, (671), 505 states have internal predecessors, (671), 254 states have call successors, (254), 52 states have call predecessors, (254), 51 states have return successors, (245), 244 states have call predecessors, (245), 245 states have call successors, (245) [2023-11-19 04:46:16,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-19 04:46:16,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:16,013 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:16,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:46:16,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:16,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1425557526, now seen corresponding path program 1 times [2023-11-19 04:46:16,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:16,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139838972] [2023-11-19 04:46:16,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:16,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:17,037 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-19 04:46:17,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:17,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139838972] [2023-11-19 04:46:17,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139838972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:17,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:17,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:46:17,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37971677] [2023-11-19 04:46:17,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:17,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:46:17,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:46:17,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:17,112 INFO L87 Difference]: Start difference. First operand has 801 states, 495 states have (on average 1.3555555555555556) internal successors, (671), 505 states have internal predecessors, (671), 254 states have call successors, (254), 52 states have call predecessors, (254), 51 states have return successors, (245), 244 states have call predecessors, (245), 245 states have call successors, (245) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:46:19,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:21,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:24,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:26,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:28,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:30,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:30,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:46:30,824 INFO L93 Difference]: Finished difference Result 2246 states and 3331 transitions. [2023-11-19 04:46:30,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:46:30,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 134 [2023-11-19 04:46:30,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:46:30,878 INFO L225 Difference]: With dead ends: 2246 [2023-11-19 04:46:30,879 INFO L226 Difference]: Without dead ends: 1455 [2023-11-19 04:46:30,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:46:30,899 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 1015 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:46:30,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 1860 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 398 Invalid, 6 Unknown, 0 Unchecked, 13.4s Time] [2023-11-19 04:46:30,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2023-11-19 04:46:31,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1451. [2023-11-19 04:46:31,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 917 states have (on average 1.3369683751363142) internal successors, (1226), 940 states have internal predecessors, (1226), 433 states have call successors, (433), 99 states have call predecessors, (433), 98 states have return successors, (429), 427 states have call predecessors, (429), 429 states have call successors, (429) [2023-11-19 04:46:31,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2088 transitions. [2023-11-19 04:46:31,250 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2088 transitions. Word has length 134 [2023-11-19 04:46:31,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:46:31,252 INFO L495 AbstractCegarLoop]: Abstraction has 1451 states and 2088 transitions. [2023-11-19 04:46:31,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-19 04:46:31,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2088 transitions. [2023-11-19 04:46:31,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-19 04:46:31,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:46:31,271 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:46:31,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:46:31,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 04:46:31,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:46:31,276 INFO L85 PathProgramCache]: Analyzing trace with hash -132810910, now seen corresponding path program 1 times [2023-11-19 04:46:31,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:46:31,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214257340] [2023-11-19 04:46:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:46:31,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:46:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:46:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-19 04:46:32,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:46:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214257340] [2023-11-19 04:46:32,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214257340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:46:32,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:46:32,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:46:32,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410592231] [2023-11-19 04:46:32,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:46:32,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:46:32,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:46:32,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:46:32,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:46:32,053 INFO L87 Difference]: Start difference. First operand 1451 states and 2088 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 04:46:36,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:38,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:41,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:43,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:45,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:47,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:50,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:52,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:54,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:46:56,125 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 []