./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-mutex_drivers-net-wireless-prism54-prism54.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh --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 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:46:33,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:46:33,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 18:46:33,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:46:33,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:46:34,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:46:34,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:46:34,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:46:34,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:46:34,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:46:34,026 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:46:34,027 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:46:34,027 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:46:34,028 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:46:34,028 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:46:34,029 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:46:34,029 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:46:34,041 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:46:34,042 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:46:34,043 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:46:34,043 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:46:34,044 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:46:34,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:46:34,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:46:34,045 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:46:34,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:46:34,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:46:34,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:46:34,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:46:34,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:46:34,048 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:46:34,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:46:34,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:46:34,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:46:34,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:46:34,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:46:34,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:46:34,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:46:34,050 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:46:34,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:46:34,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:46:34,051 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:46:34,051 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:46:34,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:46:34,051 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf48d35d7133b2e8327bc0634357c212875c286543fcf18078150bbf7eff020 [2023-12-02 18:46:34,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:46:34,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:46:34,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:46:34,321 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:46:34,321 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:46:34,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2023-12-02 18:46:37,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:46:37,593 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:46:37,594 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2023-12-02 18:46:37,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/data/b98a0f3db/a357fd9acce94aa0b807028eb9a649e0/FLAG2e15dfa4e [2023-12-02 18:46:37,659 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/data/b98a0f3db/a357fd9acce94aa0b807028eb9a649e0 [2023-12-02 18:46:37,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:46:37,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:46:37,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:46:37,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:46:37,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:46:37,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:46:37" (1/1) ... [2023-12-02 18:46:37,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20e8f0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:37, skipping insertion in model container [2023-12-02 18:46:37,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:46:37" (1/1) ... [2023-12-02 18:46:37,881 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:46:41,768 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2023-12-02 18:46:41,773 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2023-12-02 18:46:41,774 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2023-12-02 18:46:41,774 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2023-12-02 18:46:41,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:46:41,920 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:46:42,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5722] [2023-12-02 18:46:42,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5729] [2023-12-02 18:46:42,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5736] [2023-12-02 18:46:42,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5823] [2023-12-02 18:46:42,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5830] [2023-12-02 18:46:42,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5887-5888] [2023-12-02 18:46:42,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5921-5922] [2023-12-02 18:46:42,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6364] [2023-12-02 18:46:42,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6599] [2023-12-02 18:46:42,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6625] [2023-12-02 18:46:42,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6711] [2023-12-02 18:46:42,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6714] [2023-12-02 18:46:42,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6717] [2023-12-02 18:46:42,070 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6720] [2023-12-02 18:46:42,071 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [6779-6780] [2023-12-02 18:46:42,075 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6912] [2023-12-02 18:46:42,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7005] [2023-12-02 18:46:42,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7045] [2023-12-02 18:46:42,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7132-7133] [2023-12-02 18:46:42,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7136-7137] [2023-12-02 18:46:42,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7140-7141] [2023-12-02 18:46:42,122 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7144-7145] [2023-12-02 18:46:42,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7190] [2023-12-02 18:46:42,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7283-7284] [2023-12-02 18:46:42,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7287-7288] [2023-12-02 18:46:42,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7291-7292] [2023-12-02 18:46:42,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (priv->mgmt_received): : "memory", "cc"); [7295-7296] [2023-12-02 18:46:42,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_38xx.c"), "i" (231), "i" (12UL)); [7530-7531] [2023-12-02 18:46:42,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_38xx.c"), "i" (236), "i" (12UL)); [7568-7569] [2023-12-02 18:46:42,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_38xx.c"), "i" (240), "i" (12UL)); [7581-7582] [2023-12-02 18:46:42,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_38xx.c"), "i" (245), "i" (12UL)); [7594-7595] [2023-12-02 18:46:42,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_38xx.c"), "i" (250), "i" (12UL)); [7608-7609] [2023-12-02 18:46:42,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_38xx.c"), "i" (253), "i" (12UL)); [7618-7619] [2023-12-02 18:46:42,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_ioctl.c"), "i" (376), "i" (12UL)); [8263-8264] [2023-12-02 18:46:42,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_ioctl.c"), "i" (2039), "i" (12UL)); [10504-10505] [2023-12-02 18:46:42,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/isl_ioctl.c"), "i" (2071), "i" (12UL)); [10563-10564] [2023-12-02 18:46:42,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [11991] [2023-12-02 18:46:42,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11994] [2023-12-02 18:46:42,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11997] [2023-12-02 18:46:42,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [12000] [2023-12-02 18:46:42,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/d4e00c1/linux-kernel-locking-mutex/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [12034-12035] [2023-12-02 18:46:42,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [12040-12042] [2023-12-02 18:46:42,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [12078] [2023-12-02 18:46:42,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12302] [2023-12-02 18:46:42,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12306] [2023-12-02 18:46:42,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12310] [2023-12-02 18:46:42,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12355] [2023-12-02 18:46:42,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12374] [2023-12-02 18:46:42,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_dev.c"), "i" (144), "i" (12UL)); [12379-12380] [2023-12-02 18:46:42,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_dev.c"), "i" (147), "i" (12UL)); [12395-12396] [2023-12-02 18:46:42,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12409] [2023-12-02 18:46:42,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12413] [2023-12-02 18:46:42,288 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12417] [2023-12-02 18:46:42,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12625] [2023-12-02 18:46:42,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12629] [2023-12-02 18:46:42,296 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12633] [2023-12-02 18:46:42,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_dev.c"), "i" (957), "i" (12UL)); [13205-13206] [2023-12-02 18:46:42,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_dev.c"), "i" (958), "i" (12UL)); [13220-13221] [2023-12-02 18:46:42,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_dev.c"), "i" (959), "i" (12UL)); [13233-13234] [2023-12-02 18:46:42,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_hotplug.c"), "i" (221), "i" (12UL)); [13877-13878] [2023-12-02 18:46:42,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_hotplug.c"), "i" (263), "i" (12UL)); [13942-13943] [2023-12-02 18:46:42,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/islpci_hotplug.c"), "i" (288), "i" (12UL)); [13987-13988] [2023-12-02 18:46:42,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (342), "i" (12UL)); [15744-15745] [2023-12-02 18:46:42,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (411), "i" (12UL)); [15887-15888] [2023-12-02 18:46:42,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (427), "i" (12UL)); [15919-15920] [2023-12-02 18:46:42,409 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (428), "i" (12UL)); [15930-15931] [2023-12-02 18:46:42,412 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (488), "i" (12UL)); [16019-16020] [2023-12-02 18:46:42,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (527), "i" (12UL)); [16083-16084] [2023-12-02 18:46:42,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (528), "i" (12UL)); [16094-16095] [2023-12-02 18:46:42,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (566), "i" (12UL)); [16154-16155] [2023-12-02 18:46:42,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (602), "i" (12UL)); [16219-16220] [2023-12-02 18:46:42,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (629), "i" (12UL)); [16274-16275] [2023-12-02 18:46:42,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (630), "i" (12UL)); [16286-16287] [2023-12-02 18:46:42,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (639), "i" (12UL)); [16310-16311] [2023-12-02 18:46:42,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (640), "i" (12UL)); [16322-16323] [2023-12-02 18:46:42,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (641), "i" (12UL)); [16333-16334] [2023-12-02 18:46:42,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/wireless/prism54/oid_mgt.c"), "i" (899), "i" (12UL)); [16685-16686] [2023-12-02 18:46:42,454 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469707,469720] [2023-12-02 18:46:42,455 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[469873,469886] [2023-12-02 18:46:42,455 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470037,470050] [2023-12-02 18:46:42,456 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_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i[470202,470215] [2023-12-02 18:46:42,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:46:42,715 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:46:42,715 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:46:42,715 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:46:42,716 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:46:42,723 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:46:42,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42 WrapperNode [2023-12-02 18:46:42,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:46:42,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:46:42,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:46:42,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:46:42,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:42,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,153 INFO L138 Inliner]: procedures = 538, calls = 6422, calls flagged for inlining = 274, calls inlined = 248, statements flattened = 9482 [2023-12-02 18:46:43,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:46:43,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:46:43,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:46:43,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:46:43,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:46:43,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:46:43,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:46:43,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:46:43,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (1/1) ... [2023-12-02 18:46:43,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:46:43,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:46:43,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:46:43,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe0d055-5687-4d81-88d6-6aebf6d1a3ab/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:46:43,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2023-12-02 18:46:43,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_islpci_acl [2023-12-02 18:46:43,624 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_le_to_cpu [2023-12-02 18:46:43,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_le_to_cpu [2023-12-02 18:46:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_eth_tx_timeout [2023-12-02 18:46:43,625 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_eth_tx_timeout [2023-12-02 18:46:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-12-02 18:46:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-12-02 18:46:43,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-12-02 18:46:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 18:46:43,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 18:46:43,625 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_trigger [2023-12-02 18:46:43,625 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_trigger [2023-12-02 18:46:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-12-02 18:46:43,626 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-12-02 18:46:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 18:46:43,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 18:46:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_mib_mode_helper [2023-12-02 18:46:43,626 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_mib_mode_helper [2023-12-02 18:46:43,626 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-12-02 18:46:43,626 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-12-02 18:46:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-12-02 18:46:43,627 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-12-02 18:46:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 18:46:43,627 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 18:46:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_request [2023-12-02 18:46:43,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_request [2023-12-02 18:46:43,627 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_cpu_to_le [2023-12-02 18:46:43,627 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_cpu_to_le [2023-12-02 18:46:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 18:46:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_get_state [2023-12-02 18:46:43,628 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_get_state [2023-12-02 18:46:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-12-02 18:46:43,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-12-02 18:46:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 18:46:43,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 18:46:43,628 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-12-02 18:46:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-12-02 18:46:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-12-02 18:46:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-12-02 18:46:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_release [2023-12-02 18:46:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_release [2023-12-02 18:46:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 18:46:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 18:46:43,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-12-02 18:46:43,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-12-02 18:46:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 18:46:43,630 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 18:46:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2023-12-02 18:46:43,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_try [2023-12-02 18:46:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-12-02 18:46:43,630 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-12-02 18:46:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 18:46:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wpa_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure send_simple_event [2023-12-02 18:46:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure send_simple_event [2023-12-02 18:46:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 18:46:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 18:46:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 18:46:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 18:46:43,631 INFO L130 BoogieDeclarations]: Found specification of procedure send_formatted_event [2023-12-02 18:46:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure send_formatted_event [2023-12-02 18:46:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set [2023-12-02 18:46:43,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set [2023-12-02 18:46:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-12-02 18:46:43,632 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-12-02 18:46:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 18:46:43,632 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 18:46:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 18:46:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_reset [2023-12-02 18:46:43,633 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_reset [2023-12-02 18:46:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 18:46:43,633 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 18:46:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-12-02 18:46:43,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-12-02 18:46:43,633 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-12-02 18:46:43,633 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-12-02 18:46:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 18:46:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 18:46:43,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 18:46:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 18:46:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-12-02 18:46:43,634 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-12-02 18:46:43,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 18:46:43,634 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 18:46:43,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-12-02 18:46:43,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-12-02 18:46:43,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 18:46:43,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 18:46:43,635 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_open [2023-12-02 18:46:43,635 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_open [2023-12-02 18:46:43,635 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_resume [2023-12-02 18:46:43,635 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_resume [2023-12-02 18:46:43,635 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-12-02 18:46:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-12-02 18:46:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 18:46:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-12-02 18:46:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-12-02 18:46:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-12-02 18:46:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-12-02 18:46:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2023-12-02 18:46:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2023-12-02 18:46:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-12-02 18:46:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-12-02 18:46:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:46:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 18:46:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 18:46:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 18:46:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 18:46:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 18:46:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 18:46:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 18:46:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 18:46:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_stats_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-12-02 18:46:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-12-02 18:46:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-12-02 18:46:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-12-02 18:46:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 18:46:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 18:46:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wpa_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-12-02 18:46:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-12-02 18:46:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-12-02 18:46:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-12-02 18:46:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2023-12-02 18:46:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2023-12-02 18:46:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-12-02 18:46:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-12-02 18:46:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-12-02 18:46:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-12-02 18:46:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2023-12-02 18:46:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_prism54_module_exit_12_2 [2023-12-02 18:46:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2023-12-02 18:46:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2023-12-02 18:46:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-12-02 18:46:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-12-02 18:46:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:46:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:46:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2023-12-02 18:46:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2023-12-02 18:46:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 18:46:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 18:46:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 18:46:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 18:46:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_clear_mac [2023-12-02 18:46:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_clear_mac [2023-12-02 18:46:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_wpa_bss_ie_get [2023-12-02 18:46:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_wpa_bss_ie_get [2023-12-02 18:46:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 18:46:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 18:46:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 18:46:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 18:46:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-12-02 18:46:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-12-02 18:46:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure handle_request [2023-12-02 18:46:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_request [2023-12-02 18:46:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_bring_down [2023-12-02 18:46:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_bring_down [2023-12-02 18:46:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_stats_lock_of_NOT_ARG_SIGN [2023-12-02 18:46:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-12-02 18:46:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-12-02 18:46:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 18:46:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 18:46:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-12-02 18:46:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-12-02 18:46:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-12-02 18:46:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-12-02 18:46:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-12-02 18:46:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-12-02 18:46:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-12-02 18:46:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-12-02 18:46:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 18:46:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 18:46:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 18:46:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_set_state [2023-12-02 18:46:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_set_state [2023-12-02 18:46:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2023-12-02 18:46:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2023-12-02 18:46:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 18:46:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_set_varlen [2023-12-02 18:46:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_set_varlen [2023-12-02 18:46:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2023-12-02 18:46:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2023-12-02 18:46:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2023-12-02 18:46:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2023-12-02 18:46:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 18:46:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_close [2023-12-02 18:46:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_close [2023-12-02 18:46:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 18:46:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 18:46:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-12-02 18:46:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-12-02 18:46:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_get_request [2023-12-02 18:46:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_get_request [2023-12-02 18:46:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-12-02 18:46:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-12-02 18:46:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 18:46:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 18:46:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-12-02 18:46:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-12-02 18:46:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-12-02 18:46:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-12-02 18:46:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure prism54_remove [2023-12-02 18:46:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure prism54_remove [2023-12-02 18:46:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_w32_flush [2023-12-02 18:46:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_w32_flush [2023-12-02 18:46:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 18:46:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 18:46:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-12-02 18:46:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-12-02 18:46:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-12-02 18:46:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-12-02 18:46:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 18:46:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 18:46:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-12-02 18:46:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-12-02 18:46:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit_list [2023-12-02 18:46:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit_list [2023-12-02 18:46:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-12-02 18:46:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-12-02 18:46:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 18:46:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-12-02 18:46:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-12-02 18:46:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-12-02 18:46:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-12-02 18:46:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-12-02 18:46:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgmt_rx_fill [2023-12-02 18:46:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgmt_rx_fill [2023-12-02 18:46:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_mgt_transaction [2023-12-02 18:46:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_mgt_transaction [2023-12-02 18:46:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 18:46:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 18:46:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 18:46:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-12-02 18:46:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure channel_of_freq [2023-12-02 18:46:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_of_freq [2023-12-02 18:46:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 18:46:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-12-02 18:46:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-12-02 18:46:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-12-02 18:46:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-12-02 18:46:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 18:46:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 18:46:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure islpci_free_memory [2023-12-02 18:46:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure islpci_free_memory [2023-12-02 18:46:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_islpci_acl [2023-12-02 18:46:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_islpci_acl [2023-12-02 18:46:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure mgt_commit [2023-12-02 18:46:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mgt_commit [2023-12-02 18:46:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-12-02 18:46:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-12-02 18:46:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure __swab32s [2023-12-02 18:46:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab32s [2023-12-02 18:46:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2023-12-02 18:46:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2023-12-02 18:46:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-12-02 18:46:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-12-02 18:46:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 18:46:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 18:46:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-12-02 18:46:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-12-02 18:46:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-12-02 18:46:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-12-02 18:46:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_in_queue [2023-12-02 18:46:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_in_queue [2023-12-02 18:46:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_islpci_acl [2023-12-02 18:46:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_islpci_acl [2023-12-02 18:46:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-12-02 18:46:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-12-02 18:46:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-12-02 18:46:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-12-02 18:46:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:46:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-12-02 18:46:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-12-02 18:46:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-12-02 18:46:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-12-02 18:46:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure isl38xx_disable_interrupts [2023-12-02 18:46:43,656 INFO L138 BoogieDeclarations]: Found implementation of procedure isl38xx_disable_interrupts [2023-12-02 18:46:44,752 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:46:44,756 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:46:45,174 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 18:46:53,065 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-12-02 18:46:53,457 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:46:55,510 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:46:55,510 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-02 18:46:55,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:46:55 BoogieIcfgContainer [2023-12-02 18:46:55,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:46:55,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:46:55,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:46:55,517 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:46:55,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:46:37" (1/3) ... [2023-12-02 18:46:55,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139b36b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:46:55, skipping insertion in model container [2023-12-02 18:46:55,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:46:42" (2/3) ... [2023-12-02 18:46:55,518 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139b36b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:46:55, skipping insertion in model container [2023-12-02 18:46:55,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:46:55" (3/3) ... [2023-12-02 18:46:55,520 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-prism54-prism54.cil.i [2023-12-02 18:46:55,536 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:46:55,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 18:46:55,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:46:55,619 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;@498d3fa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:46:55,619 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 18:46:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 2028 states, 1211 states have (on average 1.2906688687035508) internal successors, (1563), 1248 states have internal predecessors, (1563), 682 states have call successors, (682), 132 states have call predecessors, (682), 131 states have return successors, (676), 669 states have call predecessors, (676), 676 states have call successors, (676) [2023-12-02 18:46:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 18:46:55,648 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:46:55,649 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 18:46:55,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:46:55,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:46:55,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1886647452, now seen corresponding path program 1 times [2023-12-02 18:46:55,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:46:55,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620137383] [2023-12-02 18:46:55,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:46:55,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:46:56,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:46:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-02 18:46:56,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:46:56,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620137383] [2023-12-02 18:46:56,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620137383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:46:56,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:46:56,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:46:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279357807] [2023-12-02 18:46:56,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:46:56,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:46:56,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:46:56,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:46:56,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:46:56,848 INFO L87 Difference]: Start difference. First operand has 2028 states, 1211 states have (on average 1.2906688687035508) internal successors, (1563), 1248 states have internal predecessors, (1563), 682 states have call successors, (682), 132 states have call predecessors, (682), 131 states have return successors, (676), 669 states have call predecessors, (676), 676 states have call successors, (676) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-02 18:47:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:00,443 INFO L93 Difference]: Finished difference Result 5985 states and 8800 transitions. [2023-12-02 18:47:00,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:47:00,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2023-12-02 18:47:00,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:00,498 INFO L225 Difference]: With dead ends: 5985 [2023-12-02 18:47:00,498 INFO L226 Difference]: Without dead ends: 3960 [2023-12-02 18:47:00,522 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 [2023-12-02 18:47:00,526 INFO L413 NwaCegarLoop]: 2556 mSDtfsCounter, 2817 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 5065 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:00,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 5065 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-12-02 18:47:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2023-12-02 18:47:00,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3954. [2023-12-02 18:47:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 2375 states have (on average 1.2842105263157895) internal successors, (3050), 2447 states have internal predecessors, (3050), 1317 states have call successors, (1317), 259 states have call predecessors, (1317), 258 states have return successors, (1313), 1299 states have call predecessors, (1313), 1313 states have call successors, (1313) [2023-12-02 18:47:00,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 5680 transitions. [2023-12-02 18:47:00,856 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 5680 transitions. Word has length 81 [2023-12-02 18:47:00,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:00,857 INFO L495 AbstractCegarLoop]: Abstraction has 3954 states and 5680 transitions. [2023-12-02 18:47:00,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-02 18:47:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 5680 transitions. [2023-12-02 18:47:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 18:47:00,863 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:00,864 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 18:47:00,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:47:00,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:00,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash -611763045, now seen corresponding path program 1 times [2023-12-02 18:47:00,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:00,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163981022] [2023-12-02 18:47:00,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:00,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:01,716 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-02 18:47:01,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:01,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163981022] [2023-12-02 18:47:01,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163981022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:01,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:01,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:47:01,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545541799] [2023-12-02 18:47:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:01,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:47:01,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:01,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:47:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:47:01,720 INFO L87 Difference]: Start difference. First operand 3954 states and 5680 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-02 18:47:05,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:05,605 INFO L93 Difference]: Finished difference Result 9852 states and 14148 transitions. [2023-12-02 18:47:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:47:05,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 81 [2023-12-02 18:47:05,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:05,650 INFO L225 Difference]: With dead ends: 9852 [2023-12-02 18:47:05,650 INFO L226 Difference]: Without dead ends: 5911 [2023-12-02 18:47:05,668 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 [2023-12-02 18:47:05,670 INFO L413 NwaCegarLoop]: 2542 mSDtfsCounter, 2821 mSDsluCounter, 2520 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 5062 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:05,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2821 Valid, 5062 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-02 18:47:05,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5911 states. [2023-12-02 18:47:05,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5911 to 5889. [2023-12-02 18:47:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5889 states, 3534 states have (on average 1.2829654782116582) internal successors, (4534), 3644 states have internal predecessors, (4534), 1962 states have call successors, (1962), 390 states have call predecessors, (1962), 389 states have return successors, (1958), 1932 states have call predecessors, (1958), 1958 states have call successors, (1958) [2023-12-02 18:47:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5889 states to 5889 states and 8454 transitions. [2023-12-02 18:47:06,046 INFO L78 Accepts]: Start accepts. Automaton has 5889 states and 8454 transitions. Word has length 81 [2023-12-02 18:47:06,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:06,047 INFO L495 AbstractCegarLoop]: Abstraction has 5889 states and 8454 transitions. [2023-12-02 18:47:06,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-02 18:47:06,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5889 states and 8454 transitions. [2023-12-02 18:47:06,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 18:47:06,051 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:06,052 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 18:47:06,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:47:06,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:06,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:06,053 INFO L85 PathProgramCache]: Analyzing trace with hash 956193850, now seen corresponding path program 1 times [2023-12-02 18:47:06,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:06,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424389434] [2023-12-02 18:47:06,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:06,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-02 18:47:06,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:06,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424389434] [2023-12-02 18:47:06,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424389434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:06,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:06,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:47:06,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981893755] [2023-12-02 18:47:06,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:06,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:47:06,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:06,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:47:06,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:47:06,745 INFO L87 Difference]: Start difference. First operand 5889 states and 8454 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:47:10,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:47:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:11,248 INFO L93 Difference]: Finished difference Result 14572 states and 20848 transitions. [2023-12-02 18:47:11,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:47:11,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2023-12-02 18:47:11,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:11,321 INFO L225 Difference]: With dead ends: 14572 [2023-12-02 18:47:11,321 INFO L226 Difference]: Without dead ends: 8696 [2023-12-02 18:47:11,356 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 [2023-12-02 18:47:11,358 INFO L413 NwaCegarLoop]: 2590 mSDtfsCounter, 2275 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2275 SdHoareTripleChecker+Valid, 5075 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:11,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2275 Valid, 5075 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-02 18:47:11,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2023-12-02 18:47:11,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 8672. [2023-12-02 18:47:11,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8672 states, 5247 states have (on average 1.2818753573470554) internal successors, (6726), 5418 states have internal predecessors, (6726), 2810 states have call successors, (2810), 614 states have call predecessors, (2810), 611 states have return successors, (2806), 2760 states have call predecessors, (2806), 2806 states have call successors, (2806) [2023-12-02 18:47:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8672 states to 8672 states and 12342 transitions. [2023-12-02 18:47:11,884 INFO L78 Accepts]: Start accepts. Automaton has 8672 states and 12342 transitions. Word has length 84 [2023-12-02 18:47:11,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:11,885 INFO L495 AbstractCegarLoop]: Abstraction has 8672 states and 12342 transitions. [2023-12-02 18:47:11,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:47:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8672 states and 12342 transitions. [2023-12-02 18:47:11,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 18:47:11,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:11,888 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 18:47:11,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:47:11,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:11,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:11,889 INFO L85 PathProgramCache]: Analyzing trace with hash 461121259, now seen corresponding path program 1 times [2023-12-02 18:47:11,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:11,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784666790] [2023-12-02 18:47:11,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:11,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-12-02 18:47:12,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:12,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784666790] [2023-12-02 18:47:12,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784666790] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:12,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:12,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:47:12,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191492799] [2023-12-02 18:47:12,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:12,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:47:12,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:12,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:47:12,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:47:12,574 INFO L87 Difference]: Start difference. First operand 8672 states and 12342 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:47:15,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:15,842 INFO L93 Difference]: Finished difference Result 21123 states and 29972 transitions. [2023-12-02 18:47:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:47:15,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2023-12-02 18:47:15,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:15,939 INFO L225 Difference]: With dead ends: 21123 [2023-12-02 18:47:15,939 INFO L226 Difference]: Without dead ends: 12464 [2023-12-02 18:47:15,985 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 [2023-12-02 18:47:15,986 INFO L413 NwaCegarLoop]: 2538 mSDtfsCounter, 2696 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2696 SdHoareTripleChecker+Valid, 4999 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:15,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2696 Valid, 4999 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-02 18:47:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12464 states. [2023-12-02 18:47:16,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12464 to 12426. [2023-12-02 18:47:16,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12426 states, 7520 states have (on average 1.2768617021276596) internal successors, (9602), 7774 states have internal predecessors, (9602), 3991 states have call successors, (3991), 920 states have call predecessors, (3991), 911 states have return successors, (3991), 3899 states have call predecessors, (3991), 3987 states have call successors, (3991) [2023-12-02 18:47:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12426 states to 12426 states and 17584 transitions. [2023-12-02 18:47:16,807 INFO L78 Accepts]: Start accepts. Automaton has 12426 states and 17584 transitions. Word has length 91 [2023-12-02 18:47:16,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:16,808 INFO L495 AbstractCegarLoop]: Abstraction has 12426 states and 17584 transitions. [2023-12-02 18:47:16,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-02 18:47:16,809 INFO L276 IsEmpty]: Start isEmpty. Operand 12426 states and 17584 transitions. [2023-12-02 18:47:16,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-02 18:47:16,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:16,813 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:47:16,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 18:47:16,814 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:16,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash 257597175, now seen corresponding path program 1 times [2023-12-02 18:47:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:16,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606627487] [2023-12-02 18:47:16,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:16,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:17,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:18,849 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-12-02 18:47:18,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:18,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606627487] [2023-12-02 18:47:18,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606627487] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:18,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:18,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:47:18,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969097389] [2023-12-02 18:47:18,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:18,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:47:18,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:18,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:47:18,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:47:18,852 INFO L87 Difference]: Start difference. First operand 12426 states and 17584 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 18:47:22,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:22,663 INFO L93 Difference]: Finished difference Result 12432 states and 17589 transitions. [2023-12-02 18:47:22,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:47:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2023-12-02 18:47:22,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:22,728 INFO L225 Difference]: With dead ends: 12432 [2023-12-02 18:47:22,728 INFO L226 Difference]: Without dead ends: 12430 [2023-12-02 18:47:22,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:47:22,738 INFO L413 NwaCegarLoop]: 2525 mSDtfsCounter, 2855 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 7566 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:22,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 7566 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-02 18:47:22,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12430 states. [2023-12-02 18:47:23,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12430 to 12430. [2023-12-02 18:47:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12430 states, 7523 states have (on average 1.2767512960255218) internal successors, (9605), 7777 states have internal predecessors, (9605), 3991 states have call successors, (3991), 921 states have call predecessors, (3991), 912 states have return successors, (3991), 3899 states have call predecessors, (3991), 3987 states have call successors, (3991) [2023-12-02 18:47:23,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12430 states to 12430 states and 17587 transitions. [2023-12-02 18:47:23,316 INFO L78 Accepts]: Start accepts. Automaton has 12430 states and 17587 transitions. Word has length 127 [2023-12-02 18:47:23,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:23,317 INFO L495 AbstractCegarLoop]: Abstraction has 12430 states and 17587 transitions. [2023-12-02 18:47:23,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 18:47:23,318 INFO L276 IsEmpty]: Start isEmpty. Operand 12430 states and 17587 transitions. [2023-12-02 18:47:23,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 18:47:23,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:23,322 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:47:23,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 18:47:23,322 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:23,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:23,323 INFO L85 PathProgramCache]: Analyzing trace with hash -254999984, now seen corresponding path program 1 times [2023-12-02 18:47:23,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:23,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822026765] [2023-12-02 18:47:23,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:23,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2023-12-02 18:47:25,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:25,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822026765] [2023-12-02 18:47:25,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822026765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:25,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:25,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:47:25,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287278984] [2023-12-02 18:47:25,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:25,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:47:25,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:25,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:47:25,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:47:25,066 INFO L87 Difference]: Start difference. First operand 12430 states and 17587 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 18:47:29,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:29,674 INFO L93 Difference]: Finished difference Result 12436 states and 17592 transitions. [2023-12-02 18:47:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:47:29,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2023-12-02 18:47:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:29,716 INFO L225 Difference]: With dead ends: 12436 [2023-12-02 18:47:29,716 INFO L226 Difference]: Without dead ends: 12434 [2023-12-02 18:47:29,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:47:29,723 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 2850 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2855 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:29,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2855 Valid, 7569 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-02 18:47:29,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12434 states. [2023-12-02 18:47:30,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12434 to 12434. [2023-12-02 18:47:30,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12434 states, 7526 states have (on average 1.2766409779431305) internal successors, (9608), 7780 states have internal predecessors, (9608), 3991 states have call successors, (3991), 922 states have call predecessors, (3991), 913 states have return successors, (3991), 3899 states have call predecessors, (3991), 3987 states have call successors, (3991) [2023-12-02 18:47:30,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12434 states to 12434 states and 17590 transitions. [2023-12-02 18:47:30,272 INFO L78 Accepts]: Start accepts. Automaton has 12434 states and 17590 transitions. Word has length 132 [2023-12-02 18:47:30,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:30,272 INFO L495 AbstractCegarLoop]: Abstraction has 12434 states and 17590 transitions. [2023-12-02 18:47:30,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 18:47:30,272 INFO L276 IsEmpty]: Start isEmpty. Operand 12434 states and 17590 transitions. [2023-12-02 18:47:30,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-02 18:47:30,276 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:30,276 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:47:30,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 18:47:30,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:30,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1494324953, now seen corresponding path program 1 times [2023-12-02 18:47:30,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:30,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086917426] [2023-12-02 18:47:30,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:30,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:30,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-12-02 18:47:30,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:30,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086917426] [2023-12-02 18:47:30,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086917426] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:30,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:30,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:47:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057125921] [2023-12-02 18:47:30,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:30,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:47:30,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:30,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:47:30,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:47:30,956 INFO L87 Difference]: Start difference. First operand 12434 states and 17590 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 18:47:35,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:35,607 INFO L93 Difference]: Finished difference Result 28736 states and 40636 transitions. [2023-12-02 18:47:35,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:47:35,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 135 [2023-12-02 18:47:35,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:35,747 INFO L225 Difference]: With dead ends: 28736 [2023-12-02 18:47:35,747 INFO L226 Difference]: Without dead ends: 16792 [2023-12-02 18:47:35,792 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 [2023-12-02 18:47:35,793 INFO L413 NwaCegarLoop]: 4397 mSDtfsCounter, 2278 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 6880 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:35,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 6880 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1063 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-02 18:47:35,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16792 states. [2023-12-02 18:47:36,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16792 to 16752. [2023-12-02 18:47:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16752 states, 10166 states have (on average 1.2758213653354318) internal successors, (12970), 10514 states have internal predecessors, (12970), 5318 states have call successors, (5318), 1277 states have call predecessors, (5318), 1264 states have return successors, (5318), 5190 states have call predecessors, (5318), 5314 states have call successors, (5318) [2023-12-02 18:47:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16752 states to 16752 states and 23606 transitions. [2023-12-02 18:47:36,754 INFO L78 Accepts]: Start accepts. Automaton has 16752 states and 23606 transitions. Word has length 135 [2023-12-02 18:47:36,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:36,755 INFO L495 AbstractCegarLoop]: Abstraction has 16752 states and 23606 transitions. [2023-12-02 18:47:36,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 18:47:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 16752 states and 23606 transitions. [2023-12-02 18:47:36,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-02 18:47:36,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:36,758 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:47:36,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 18:47:36,758 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:36,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:36,758 INFO L85 PathProgramCache]: Analyzing trace with hash -50390289, now seen corresponding path program 1 times [2023-12-02 18:47:36,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:36,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414423519] [2023-12-02 18:47:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:36,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-02 18:47:38,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:38,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414423519] [2023-12-02 18:47:38,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414423519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:38,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:38,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:47:38,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072667674] [2023-12-02 18:47:38,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:38,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:47:38,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:38,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:47:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:47:38,102 INFO L87 Difference]: Start difference. First operand 16752 states and 23606 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 18:47:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:45,174 INFO L93 Difference]: Finished difference Result 32540 states and 46077 transitions. [2023-12-02 18:47:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:47:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 144 [2023-12-02 18:47:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:45,276 INFO L225 Difference]: With dead ends: 32540 [2023-12-02 18:47:45,276 INFO L226 Difference]: Without dead ends: 32538 [2023-12-02 18:47:45,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:47:45,290 INFO L413 NwaCegarLoop]: 2688 mSDtfsCounter, 2833 mSDsluCounter, 7813 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2837 SdHoareTripleChecker+Valid, 10501 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:45,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2837 Valid, 10501 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-12-02 18:47:45,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32538 states. [2023-12-02 18:47:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32538 to 32478. [2023-12-02 18:47:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32478 states, 19704 states have (on average 1.2768473406414942) internal successors, (25159), 20404 states have internal predecessors, (25159), 10366 states have call successors, (10366), 2460 states have call predecessors, (10366), 2404 states have return successors, (10482), 10065 states have call predecessors, (10482), 10358 states have call successors, (10482) [2023-12-02 18:47:46,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32478 states to 32478 states and 46007 transitions. [2023-12-02 18:47:46,917 INFO L78 Accepts]: Start accepts. Automaton has 32478 states and 46007 transitions. Word has length 144 [2023-12-02 18:47:46,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:46,917 INFO L495 AbstractCegarLoop]: Abstraction has 32478 states and 46007 transitions. [2023-12-02 18:47:46,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 18:47:46,918 INFO L276 IsEmpty]: Start isEmpty. Operand 32478 states and 46007 transitions. [2023-12-02 18:47:46,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 18:47:46,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:46,921 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:47:46,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 18:47:46,922 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:46,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:46,922 INFO L85 PathProgramCache]: Analyzing trace with hash 791316080, now seen corresponding path program 1 times [2023-12-02 18:47:46,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:46,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393514117] [2023-12-02 18:47:46,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:46,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:48,135 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2023-12-02 18:47:48,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:48,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393514117] [2023-12-02 18:47:48,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393514117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:48,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:48,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:47:48,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057186575] [2023-12-02 18:47:48,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:48,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:47:48,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:48,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:47:48,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:47:48,138 INFO L87 Difference]: Start difference. First operand 32478 states and 46007 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 18:47:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:47:55,899 INFO L93 Difference]: Finished difference Result 63452 states and 90995 transitions. [2023-12-02 18:47:55,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:47:55,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 142 [2023-12-02 18:47:55,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:47:56,130 INFO L225 Difference]: With dead ends: 63452 [2023-12-02 18:47:56,130 INFO L226 Difference]: Without dead ends: 63450 [2023-12-02 18:47:56,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:47:56,158 INFO L413 NwaCegarLoop]: 2598 mSDtfsCounter, 2786 mSDsluCounter, 7699 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2789 SdHoareTripleChecker+Valid, 10297 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:47:56,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2789 Valid, 10297 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 18:47:56,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63450 states. [2023-12-02 18:47:58,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63450 to 63426. [2023-12-02 18:47:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63426 states, 38465 states have (on average 1.2771090601845834) internal successors, (49124), 39837 states have internal predecessors, (49124), 20196 states have call successors, (20196), 4873 states have call predecessors, (20196), 4761 states have return successors, (21652), 19579 states have call predecessors, (21652), 20180 states have call successors, (21652) [2023-12-02 18:47:59,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63426 states to 63426 states and 90972 transitions. [2023-12-02 18:47:59,194 INFO L78 Accepts]: Start accepts. Automaton has 63426 states and 90972 transitions. Word has length 142 [2023-12-02 18:47:59,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:47:59,195 INFO L495 AbstractCegarLoop]: Abstraction has 63426 states and 90972 transitions. [2023-12-02 18:47:59,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 18:47:59,195 INFO L276 IsEmpty]: Start isEmpty. Operand 63426 states and 90972 transitions. [2023-12-02 18:47:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-02 18:47:59,199 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:47:59,199 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:47:59,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 18:47:59,199 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:47:59,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:47:59,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1527587571, now seen corresponding path program 1 times [2023-12-02 18:47:59,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:47:59,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598865519] [2023-12-02 18:47:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:47:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:47:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:47:59,977 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-12-02 18:47:59,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:47:59,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598865519] [2023-12-02 18:47:59,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598865519] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:47:59,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:47:59,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:47:59,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69052592] [2023-12-02 18:47:59,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:47:59,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:47:59,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:47:59,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:47:59,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:47:59,980 INFO L87 Difference]: Start difference. First operand 63426 states and 90972 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-02 18:48:08,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:48:08,438 INFO L93 Difference]: Finished difference Result 157548 states and 226079 transitions. [2023-12-02 18:48:08,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:48:08,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 142 [2023-12-02 18:48:08,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:48:08,891 INFO L225 Difference]: With dead ends: 157548 [2023-12-02 18:48:08,891 INFO L226 Difference]: Without dead ends: 94612 [2023-12-02 18:48:09,052 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 [2023-12-02 18:48:09,052 INFO L413 NwaCegarLoop]: 4997 mSDtfsCounter, 2821 mSDsluCounter, 2518 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2821 SdHoareTripleChecker+Valid, 7515 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:48:09,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2821 Valid, 7515 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-02 18:48:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94612 states. [2023-12-02 18:48:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94612 to 94454. [2023-12-02 18:48:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94454 states, 57249 states have (on average 1.2768781987458295) internal successors, (73100), 59325 states have internal predecessors, (73100), 30106 states have call successors, (30106), 7261 states have call predecessors, (30106), 7095 states have return successors, (32298), 29159 states have call predecessors, (32298), 30090 states have call successors, (32298) [2023-12-02 18:48:14,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94454 states to 94454 states and 135504 transitions. [2023-12-02 18:48:14,360 INFO L78 Accepts]: Start accepts. Automaton has 94454 states and 135504 transitions. Word has length 142 [2023-12-02 18:48:14,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:48:14,360 INFO L495 AbstractCegarLoop]: Abstraction has 94454 states and 135504 transitions. [2023-12-02 18:48:14,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-02 18:48:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 94454 states and 135504 transitions. [2023-12-02 18:48:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-02 18:48:14,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:48:14,366 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:48:14,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 18:48:14,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:48:14,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:48:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash -374003947, now seen corresponding path program 1 times [2023-12-02 18:48:14,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:48:14,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308319413] [2023-12-02 18:48:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:48:14,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:48:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:48:15,981 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2023-12-02 18:48:15,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:48:15,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308319413] [2023-12-02 18:48:15,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308319413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:48:15,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:48:15,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:48:15,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507869723] [2023-12-02 18:48:15,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:48:15,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:48:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:48:15,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:48:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:48:15,984 INFO L87 Difference]: Start difference. First operand 94454 states and 135504 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 18:48:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:48:24,013 INFO L93 Difference]: Finished difference Result 94472 states and 135521 transitions. [2023-12-02 18:48:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:48:24,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 155 [2023-12-02 18:48:24,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:48:24,317 INFO L225 Difference]: With dead ends: 94472 [2023-12-02 18:48:24,318 INFO L226 Difference]: Without dead ends: 94470 [2023-12-02 18:48:24,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:48:24,353 INFO L413 NwaCegarLoop]: 2528 mSDtfsCounter, 2849 mSDsluCounter, 5041 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2851 SdHoareTripleChecker+Valid, 7569 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-02 18:48:24,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2851 Valid, 7569 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-02 18:48:24,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94470 states. [2023-12-02 18:48:29,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94470 to 94470. [2023-12-02 18:48:29,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94470 states, 57261 states have (on average 1.276820174289656) internal successors, (73112), 59337 states have internal predecessors, (73112), 30106 states have call successors, (30106), 7265 states have call predecessors, (30106), 7099 states have return successors, (32298), 29159 states have call predecessors, (32298), 30090 states have call successors, (32298) [2023-12-02 18:48:30,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94470 states to 94470 states and 135516 transitions. [2023-12-02 18:48:30,317 INFO L78 Accepts]: Start accepts. Automaton has 94470 states and 135516 transitions. Word has length 155 [2023-12-02 18:48:30,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:48:30,318 INFO L495 AbstractCegarLoop]: Abstraction has 94470 states and 135516 transitions. [2023-12-02 18:48:30,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 18:48:30,319 INFO L276 IsEmpty]: Start isEmpty. Operand 94470 states and 135516 transitions. [2023-12-02 18:48:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-02 18:48:30,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:48:30,324 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:48:30,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 18:48:30,324 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:48:30,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:48:30,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2005200240, now seen corresponding path program 1 times [2023-12-02 18:48:30,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:48:30,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989724374] [2023-12-02 18:48:30,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:48:30,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:48:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:48:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2023-12-02 18:48:31,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:48:31,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989724374] [2023-12-02 18:48:31,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989724374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:48:31,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:48:31,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:48:31,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192499662] [2023-12-02 18:48:31,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:48:31,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:48:31,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:48:31,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:48:31,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:48:31,736 INFO L87 Difference]: Start difference. First operand 94470 states and 135516 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 18:48:46,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:48:46,316 INFO L93 Difference]: Finished difference Result 281174 states and 403396 transitions. [2023-12-02 18:48:46,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 18:48:46,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2023-12-02 18:48:46,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:48:47,211 INFO L225 Difference]: With dead ends: 281174 [2023-12-02 18:48:47,211 INFO L226 Difference]: Without dead ends: 187192 [2023-12-02 18:48:47,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:48:47,485 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 2814 mSDsluCounter, 8267 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 11159 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:48:47,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2815 Valid, 11159 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-02 18:48:47,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187192 states. [2023-12-02 18:48:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187192 to 187088. [2023-12-02 18:48:57,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187088 states, 113492 states have (on average 1.27820463116343) internal successors, (145066), 117703 states have internal predecessors, (145066), 59540 states have call successors, (59540), 14433 states have call predecessors, (59540), 14052 states have return successors, (63804), 57527 states have call predecessors, (63804), 59508 states have call successors, (63804) [2023-12-02 18:48:58,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187088 states to 187088 states and 268410 transitions. [2023-12-02 18:48:58,932 INFO L78 Accepts]: Start accepts. Automaton has 187088 states and 268410 transitions. Word has length 152 [2023-12-02 18:48:58,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:48:58,933 INFO L495 AbstractCegarLoop]: Abstraction has 187088 states and 268410 transitions. [2023-12-02 18:48:58,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 18:48:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand 187088 states and 268410 transitions. [2023-12-02 18:48:58,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-02 18:48:58,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:48:58,939 INFO L195 NwaCegarLoop]: trace histogram [10, 7, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:48:58,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 18:48:58,940 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:48:58,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:48:58,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1856199959, now seen corresponding path program 1 times [2023-12-02 18:48:58,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:48:58,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594883557] [2023-12-02 18:48:58,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:48:58,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:48:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:49:00,309 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2023-12-02 18:49:00,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:49:00,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594883557] [2023-12-02 18:49:00,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594883557] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:49:00,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:49:00,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:49:00,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917638274] [2023-12-02 18:49:00,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:49:00,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:49:00,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:49:00,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:49:00,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:49:00,311 INFO L87 Difference]: Start difference. First operand 187088 states and 268410 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 18:49:12,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:49:12,161 INFO L93 Difference]: Finished difference Result 189856 states and 270960 transitions. [2023-12-02 18:49:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:49:12,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 157 [2023-12-02 18:49:12,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:49:13,074 INFO L225 Difference]: With dead ends: 189856 [2023-12-02 18:49:13,074 INFO L226 Difference]: Without dead ends: 189592 [2023-12-02 18:49:13,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 18:49:13,140 INFO L413 NwaCegarLoop]: 2547 mSDtfsCounter, 2782 mSDsluCounter, 5164 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2782 SdHoareTripleChecker+Valid, 7711 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-12-02 18:49:13,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2782 Valid, 7711 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-12-02 18:49:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189592 states. [2023-12-02 18:49:24,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189592 to 189586. [2023-12-02 18:49:24,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189586 states, 115034 states have (on average 1.2767964254046629) internal successors, (146875), 119191 states have internal predecessors, (146875), 59690 states have call successors, (59690), 15226 states have call predecessors, (59690), 14858 states have return successors, (63958), 57744 states have call predecessors, (63958), 59662 states have call successors, (63958) [2023-12-02 18:49:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189586 states to 189586 states and 270523 transitions. [2023-12-02 18:49:25,446 INFO L78 Accepts]: Start accepts. Automaton has 189586 states and 270523 transitions. Word has length 157 [2023-12-02 18:49:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:49:25,447 INFO L495 AbstractCegarLoop]: Abstraction has 189586 states and 270523 transitions. [2023-12-02 18:49:25,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-02 18:49:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 189586 states and 270523 transitions. [2023-12-02 18:49:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-02 18:49:25,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:49:25,451 INFO L195 NwaCegarLoop]: trace histogram [13, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:49:25,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 18:49:25,452 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:49:25,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:49:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1620242911, now seen corresponding path program 1 times [2023-12-02 18:49:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:49:25,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149436876] [2023-12-02 18:49:25,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:49:25,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:49:25,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:49:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2023-12-02 18:49:27,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:49:27,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149436876] [2023-12-02 18:49:27,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149436876] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:49:27,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:49:27,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:49:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391978316] [2023-12-02 18:49:27,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:49:27,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:49:27,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:49:27,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:49:27,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:49:27,245 INFO L87 Difference]: Start difference. First operand 189586 states and 270523 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:49:34,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:49:42,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:49:42,450 INFO L93 Difference]: Finished difference Result 189692 states and 270625 transitions. [2023-12-02 18:49:42,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 18:49:42,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2023-12-02 18:49:42,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:49:43,332 INFO L225 Difference]: With dead ends: 189692 [2023-12-02 18:49:43,332 INFO L226 Difference]: Without dead ends: 189690 [2023-12-02 18:49:43,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-02 18:49:43,395 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 2797 mSDsluCounter, 8329 mSDsCounter, 0 mSdLazyCounter, 1621 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 11246 SdHoareTripleChecker+Invalid, 1623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:49:43,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 11246 Invalid, 1623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1621 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-12-02 18:49:43,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189690 states. [2023-12-02 18:49:54,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189690 to 189586. [2023-12-02 18:49:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189586 states, 115034 states have (on average 1.2765877914355757) internal successors, (146851), 119191 states have internal predecessors, (146851), 59690 states have call successors, (59690), 15226 states have call predecessors, (59690), 14858 states have return successors, (63958), 57744 states have call predecessors, (63958), 59662 states have call successors, (63958) [2023-12-02 18:49:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189586 states to 189586 states and 270499 transitions. [2023-12-02 18:49:55,499 INFO L78 Accepts]: Start accepts. Automaton has 189586 states and 270499 transitions. Word has length 160 [2023-12-02 18:49:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:49:55,499 INFO L495 AbstractCegarLoop]: Abstraction has 189586 states and 270499 transitions. [2023-12-02 18:49:55,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:49:55,499 INFO L276 IsEmpty]: Start isEmpty. Operand 189586 states and 270499 transitions. [2023-12-02 18:49:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-02 18:49:55,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:49:55,509 INFO L195 NwaCegarLoop]: trace histogram [14, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:49:55,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 18:49:55,509 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:49:55,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:49:55,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1224746976, now seen corresponding path program 1 times [2023-12-02 18:49:55,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:49:55,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30648316] [2023-12-02 18:49:55,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:49:55,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:49:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:49:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 18:49:56,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:49:56,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30648316] [2023-12-02 18:49:56,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30648316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:49:56,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:49:56,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:49:56,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434534742] [2023-12-02 18:49:56,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:49:56,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:49:56,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:49:56,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:49:56,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:49:56,811 INFO L87 Difference]: Start difference. First operand 189586 states and 270499 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-02 18:50:02,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 18:50:21,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:50:21,816 INFO L93 Difference]: Finished difference Result 561811 states and 802014 transitions. [2023-12-02 18:50:21,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:50:21,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 181 [2023-12-02 18:50:21,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:50:23,502 INFO L225 Difference]: With dead ends: 561811 [2023-12-02 18:50:23,502 INFO L226 Difference]: Without dead ends: 372715 [2023-12-02 18:50:24,069 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 [2023-12-02 18:50:24,070 INFO L413 NwaCegarLoop]: 3089 mSDtfsCounter, 2808 mSDsluCounter, 2505 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2808 SdHoareTripleChecker+Valid, 5594 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:50:24,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2808 Valid, 5594 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 18:50:24,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372715 states. [2023-12-02 18:50:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372715 to 372562. [2023-12-02 18:50:47,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372562 states, 227010 states have (on average 1.27631822386679) internal successors, (289737), 234647 states have internal predecessors, (289737), 116518 states have call successors, (116518), 29674 states have call predecessors, (116518), 29030 states have return successors, (125082), 113384 states have call predecessors, (125082), 116490 states have call successors, (125082) [2023-12-02 18:50:49,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372562 states to 372562 states and 531337 transitions. [2023-12-02 18:50:49,661 INFO L78 Accepts]: Start accepts. Automaton has 372562 states and 531337 transitions. Word has length 181 [2023-12-02 18:50:49,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:50:49,662 INFO L495 AbstractCegarLoop]: Abstraction has 372562 states and 531337 transitions. [2023-12-02 18:50:49,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-02 18:50:49,662 INFO L276 IsEmpty]: Start isEmpty. Operand 372562 states and 531337 transitions. [2023-12-02 18:50:49,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-02 18:50:49,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:50:49,671 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 6, 6, 6, 6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-12-02 18:50:49,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 18:50:49,672 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-12-02 18:50:49,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:50:49,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1278056994, now seen corresponding path program 1 times [2023-12-02 18:50:49,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:50:49,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369212977] [2023-12-02 18:50:49,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:50:49,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:50:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat