./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:10:37,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:10:38,022 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:10:38,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:10:38,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:10:38,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:10:38,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:10:38,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:10:38,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:10:38,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:10:38,059 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:10:38,060 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:10:38,061 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:10:38,061 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:10:38,062 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:10:38,062 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:10:38,063 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:10:38,064 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:10:38,064 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:10:38,065 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:10:38,066 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:10:38,066 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:10:38,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:10:38,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:10:38,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:10:38,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:10:38,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:10:38,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:10:38,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:10:38,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:10:38,072 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:10:38,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:10:38,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:10:38,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:10:38,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:38,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:10:38,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:10:38,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:10:38,075 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:10:38,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:10:38,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:10:38,076 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:10:38,076 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:10:38,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:10:38,077 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2023-11-23 21:10:38,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:10:38,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:10:38,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:10:38,346 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:10:38,347 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:10:38,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2023-11-23 21:10:41,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:10:42,188 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:10:42,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2023-11-23 21:10:42,248 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/data/c1762e2e8/15907ac8f1fe476d92c9cf9cea4579af/FLAG247d32b90 [2023-11-23 21:10:42,264 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/data/c1762e2e8/15907ac8f1fe476d92c9cf9cea4579af [2023-11-23 21:10:42,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:10:42,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:10:42,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:42,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:10:42,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:10:42,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:42" (1/1) ... [2023-11-23 21:10:42,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c6a73a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:42, skipping insertion in model container [2023-11-23 21:10:42,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:10:42" (1/1) ... [2023-11-23 21:10:42,505 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:10:45,365 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2023-11-23 21:10:45,370 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2023-11-23 21:10:45,372 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2023-11-23 21:10:45,381 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2023-11-23 21:10:45,455 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:45,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:10:45,693 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"); [5246] [2023-11-23 21:10:45,695 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)); [5253] [2023-11-23 21:10:45,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5260] [2023-11-23 21:10:45,702 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/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5310-5311] [2023-11-23 21:10:45,702 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"); [5316-5318] [2023-11-23 21:10:45,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5416] [2023-11-23 21:10:45,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5424] [2023-11-23 21:10:45,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5432] [2023-11-23 21:10:45,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5439] [2023-11-23 21:10:45,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5446] [2023-11-23 21:10:45,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5453] [2023-11-23 21:10:45,732 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)); [5552-5553] [2023-11-23 21:10:45,736 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)); [5586-5587] [2023-11-23 21:10:45,737 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)); [5623-5624] [2023-11-23 21:10:45,742 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" (115), "i" (12UL)); [5660-5661] [2023-11-23 21:10:46,061 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322818,322831] [2023-11-23 21:10:46,062 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[322987,323000] [2023-11-23 21:10:46,063 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323154,323167] [2023-11-23 21:10:46,064 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_49f647a9-a1b4-4c10-9e63-02885fe57cd6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i[323322,323335] [2023-11-23 21:10:46,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:10:46,372 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:10:46,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46 WrapperNode [2023-11-23 21:10:46,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:10:46,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:46,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:10:46,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:10:46,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,712 INFO L138 Inliner]: procedures = 412, calls = 1895, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 5113 [2023-11-23 21:10:46,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:10:46,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:10:46,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:10:46,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:10:46,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:46,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:47,000 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:10:47,001 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:10:47,001 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:10:47,001 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:10:47,002 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (1/1) ... [2023-11-23 21:10:47,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:10:47,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:10:47,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:10:47,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49f647a9-a1b4-4c10-9e63-02885fe57cd6/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:10:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2023-11-23 21:10:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2023-11-23 21:10:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:10:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:10:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:10:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:10:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 21:10:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 21:10:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:10:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:10:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2023-11-23 21:10:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2023-11-23 21:10:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:10:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:10:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2023-11-23 21:10:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2023-11-23 21:10:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:10:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:10:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:10:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:10:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2023-11-23 21:10:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2023-11-23 21:10:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:10:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:10:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:10:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:10:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:10:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:10:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:10:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:10:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:10:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:10:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:10:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:10:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:10:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:10:47,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:10:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:10:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:10:47,091 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:10:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:10:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:10:47,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:10:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:10:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 21:10:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 21:10:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:10:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:10:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 21:10:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 21:10:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:10:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:10:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:10:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:10:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2023-11-23 21:10:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2023-11-23 21:10:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:10:47,096 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:10:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:10:47,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:10:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:10:47,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:10:47,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:10:47,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:10:47,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:10:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-23 21:10:47,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-23 21:10:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:10:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:10:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:10:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:10:47,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:10:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:10:47,100 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:10:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:10:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:10:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:10:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2023-11-23 21:10:47,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2023-11-23 21:10:47,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:10:47,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 21:10:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:10:47,102 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:10:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:10:47,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:10:47,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:10:47,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:10:47,103 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 21:10:47,103 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 21:10:47,103 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-23 21:10:47,104 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-23 21:10:47,104 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-23 21:10:47,104 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-23 21:10:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2023-11-23 21:10:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2023-11-23 21:10:47,105 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:10:47,105 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:10:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:10:47,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:10:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:10:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:10:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:10:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:10:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:10:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:10:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2023-11-23 21:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2023-11-23 21:10:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 21:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 21:10:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:10:47,108 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2023-11-23 21:10:47,108 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2023-11-23 21:10:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:10:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:10:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-23 21:10:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-23 21:10:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:10:47,110 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:10:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:10:47,111 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:10:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:10:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:10:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 21:10:47,112 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 21:10:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:10:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:10:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:10:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:10:47,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:10:47,117 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-23 21:10:47,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-23 21:10:47,119 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:10:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:10:47,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2023-11-23 21:10:47,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2023-11-23 21:10:47,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:10:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:10:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 21:10:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 21:10:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:10:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:10:47,127 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:10:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:10:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2023-11-23 21:10:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2023-11-23 21:10:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:10:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:10:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:10:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2023-11-23 21:10:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2023-11-23 21:10:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2023-11-23 21:10:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2023-11-23 21:10:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2023-11-23 21:10:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2023-11-23 21:10:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:10:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:10:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-23 21:10:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-23 21:10:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 21:10:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 21:10:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:10:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2023-11-23 21:10:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2023-11-23 21:10:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:10:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:10:47,131 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-23 21:10:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-23 21:10:47,987 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:10:47,991 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:10:48,231 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:10:51,978 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:10:52,103 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:54,320 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:54,321 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:10:54,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:54 BoogieIcfgContainer [2023-11-23 21:10:54,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:54,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:54,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:54,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:54,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:10:42" (1/3) ... [2023-11-23 21:10:54,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5d7dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:54, skipping insertion in model container [2023-11-23 21:10:54,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:10:46" (2/3) ... [2023-11-23 21:10:54,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5d7dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:54, skipping insertion in model container [2023-11-23 21:10:54,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:54" (3/3) ... [2023-11-23 21:10:54,335 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2023-11-23 21:10:54,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:54,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:10:54,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:54,475 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;@112e88b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:54,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:10:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 1225 states, 713 states have (on average 1.3155680224403927) internal successors, (938), 740 states have internal predecessors, (938), 434 states have call successors, (434), 76 states have call predecessors, (434), 75 states have return successors, (427), 414 states have call predecessors, (427), 427 states have call successors, (427) [2023-11-23 21:10:54,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-23 21:10:54,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:54,537 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:54,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:10:54,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2007729330, now seen corresponding path program 1 times [2023-11-23 21:10:54,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:54,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019146236] [2023-11-23 21:10:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:54,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:55,558 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-23 21:10:55,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:55,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019146236] [2023-11-23 21:10:55,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019146236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:55,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:55,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:10:55,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43429009] [2023-11-23 21:10:55,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:55,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:10:55,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:55,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:10:55,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:10:55,620 INFO L87 Difference]: Start difference. First operand has 1225 states, 713 states have (on average 1.3155680224403927) internal successors, (938), 740 states have internal predecessors, (938), 434 states have call successors, (434), 76 states have call predecessors, (434), 75 states have return successors, (427), 414 states have call predecessors, (427), 427 states have call successors, (427) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 21:10:59,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:01,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:03,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:03,602 INFO L93 Difference]: Finished difference Result 3405 states and 5062 transitions. [2023-11-23 21:11:03,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:03,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2023-11-23 21:11:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:03,649 INFO L225 Difference]: With dead ends: 3405 [2023-11-23 21:11:03,651 INFO L226 Difference]: Without dead ends: 2183 [2023-11-23 21:11:03,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:03,673 INFO L413 NwaCegarLoop]: 1670 mSDtfsCounter, 1479 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:03,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 3152 Invalid, 551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 542 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2023-11-23 21:11:03,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2183 states. [2023-11-23 21:11:03,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2183 to 2156. [2023-11-23 21:11:03,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 1253 states have (on average 1.3104549082202714) internal successors, (1642), 1307 states have internal predecessors, (1642), 758 states have call successors, (758), 144 states have call predecessors, (758), 142 states have return successors, (763), 723 states have call predecessors, (763), 754 states have call successors, (763) [2023-11-23 21:11:03,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3163 transitions. [2023-11-23 21:11:03,994 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3163 transitions. Word has length 113 [2023-11-23 21:11:03,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:03,997 INFO L495 AbstractCegarLoop]: Abstraction has 2156 states and 3163 transitions. [2023-11-23 21:11:03,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 21:11:03,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3163 transitions. [2023-11-23 21:11:04,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-23 21:11:04,005 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:04,005 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2023-11-23 21:11:04,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:11:04,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:11:04,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:04,007 INFO L85 PathProgramCache]: Analyzing trace with hash 204908504, now seen corresponding path program 1 times [2023-11-23 21:11:04,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:04,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722319848] [2023-11-23 21:11:04,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:04,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:04,478 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-23 21:11:04,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722319848] [2023-11-23 21:11:04,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722319848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:04,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:04,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:04,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015011650] [2023-11-23 21:11:04,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:04,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:04,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:04,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:04,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:04,483 INFO L87 Difference]: Start difference. First operand 2156 states and 3163 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:11:08,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:11,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:11,277 INFO L93 Difference]: Finished difference Result 6331 states and 9284 transitions. [2023-11-23 21:11:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:11,278 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2023-11-23 21:11:11,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:11,315 INFO L225 Difference]: With dead ends: 6331 [2023-11-23 21:11:11,315 INFO L226 Difference]: Without dead ends: 4194 [2023-11-23 21:11:11,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:11,328 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 1666 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:11,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 2991 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 541 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-11-23 21:11:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4194 states. [2023-11-23 21:11:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4194 to 4190. [2023-11-23 21:11:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4190 states, 2454 states have (on average 1.3084759576202118) internal successors, (3211), 2554 states have internal predecessors, (3211), 1452 states have call successors, (1452), 284 states have call predecessors, (1452), 281 states have return successors, (1466), 1389 states have call predecessors, (1466), 1448 states have call successors, (1466) [2023-11-23 21:11:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6129 transitions. [2023-11-23 21:11:11,641 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6129 transitions. Word has length 115 [2023-11-23 21:11:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:11,643 INFO L495 AbstractCegarLoop]: Abstraction has 4190 states and 6129 transitions. [2023-11-23 21:11:11,643 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:11:11,643 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6129 transitions. [2023-11-23 21:11:11,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-23 21:11:11,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:11,652 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:11:11,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:11:11,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:11:11,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:11,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1265067232, now seen corresponding path program 1 times [2023-11-23 21:11:11,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:11,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249620098] [2023-11-23 21:11:11,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:11,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:11,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:12,101 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-23 21:11:12,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:12,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249620098] [2023-11-23 21:11:12,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249620098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:12,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:12,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:11:12,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722740815] [2023-11-23 21:11:12,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:12,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:11:12,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:12,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:11:12,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:12,108 INFO L87 Difference]: Start difference. First operand 4190 states and 6129 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 21:11:15,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:18,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:20,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:20,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:20,233 INFO L93 Difference]: Finished difference Result 11880 states and 17345 transitions. [2023-11-23 21:11:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:11:20,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 117 [2023-11-23 21:11:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:20,298 INFO L225 Difference]: With dead ends: 11880 [2023-11-23 21:11:20,298 INFO L226 Difference]: Without dead ends: 7709 [2023-11-23 21:11:20,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:11:20,321 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 1510 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:20,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 2991 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 555 Invalid, 3 Unknown, 0 Unchecked, 7.6s Time] [2023-11-23 21:11:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2023-11-23 21:11:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 7678. [2023-11-23 21:11:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7678 states, 4470 states have (on average 1.2991051454138702) internal successors, (5807), 4660 states have internal predecessors, (5807), 2670 states have call successors, (2670), 540 states have call predecessors, (2670), 535 states have return successors, (2708), 2543 states have call predecessors, (2708), 2666 states have call successors, (2708) [2023-11-23 21:11:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 11185 transitions. [2023-11-23 21:11:21,021 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 11185 transitions. Word has length 117 [2023-11-23 21:11:21,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:21,023 INFO L495 AbstractCegarLoop]: Abstraction has 7678 states and 11185 transitions. [2023-11-23 21:11:21,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-23 21:11:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 11185 transitions. [2023-11-23 21:11:21,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-23 21:11:21,032 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:21,032 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 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] [2023-11-23 21:11:21,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:11:21,033 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:11:21,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1184148038, now seen corresponding path program 1 times [2023-11-23 21:11:21,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:21,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085298060] [2023-11-23 21:11:21,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:21,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-11-23 21:11:21,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:21,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085298060] [2023-11-23 21:11:21,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085298060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:21,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:21,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:11:21,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333657639] [2023-11-23 21:11:21,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:21,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:11:21,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:21,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:11:21,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:11:21,750 INFO L87 Difference]: Start difference. First operand 7678 states and 11185 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2023-11-23 21:11:25,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:27,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:29,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:11:30,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:11:30,001 INFO L93 Difference]: Finished difference Result 7684 states and 11190 transitions. [2023-11-23 21:11:30,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:11:30,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 162 [2023-11-23 21:11:30,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:11:30,064 INFO L225 Difference]: With dead ends: 7684 [2023-11-23 21:11:30,065 INFO L226 Difference]: Without dead ends: 7682 [2023-11-23 21:11:30,069 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 [2023-11-23 21:11:30,073 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 1719 mSDsluCounter, 3004 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1730 SdHoareTripleChecker+Valid, 4513 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:11:30,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1730 Valid, 4513 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 794 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2023-11-23 21:11:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7682 states. [2023-11-23 21:11:30,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7682 to 7682. [2023-11-23 21:11:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7682 states, 4473 states have (on average 1.2989045383411582) internal successors, (5810), 4663 states have internal predecessors, (5810), 2670 states have call successors, (2670), 541 states have call predecessors, (2670), 536 states have return successors, (2708), 2543 states have call predecessors, (2708), 2666 states have call successors, (2708) [2023-11-23 21:11:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 11188 transitions. [2023-11-23 21:11:30,638 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 11188 transitions. Word has length 162 [2023-11-23 21:11:30,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:11:30,640 INFO L495 AbstractCegarLoop]: Abstraction has 7682 states and 11188 transitions. [2023-11-23 21:11:30,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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) [2023-11-23 21:11:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 11188 transitions. [2023-11-23 21:11:30,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-23 21:11:30,649 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:11:30,649 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 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] [2023-11-23 21:11:30,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:11:30,655 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:11:30,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:11:30,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2042562947, now seen corresponding path program 1 times [2023-11-23 21:11:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:11:30,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326283530] [2023-11-23 21:11:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:11:30,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:11:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:11:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-11-23 21:11:31,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:11:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326283530] [2023-11-23 21:11:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326283530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:11:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:11:31,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:11:31,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471355796] [2023-11-23 21:11:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:11:31,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:11:31,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:11:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:11:31,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:11:31,295 INFO L87 Difference]: Start difference. First operand 7682 states and 11188 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 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)