./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 cf1a7837 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_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/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_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 01:00:02,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:00:02,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 01:00:02,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:00:02,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:00:02,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:00:02,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:00:02,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:00:02,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:00:02,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:00:02,247 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:00:02,248 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:00:02,248 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:00:02,250 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:00:02,250 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:00:02,251 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:00:02,251 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:00:02,252 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:00:02,252 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:00:02,252 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:00:02,253 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:00:02,253 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:00:02,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:00:02,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:00:02,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:00:02,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:00:02,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:00:02,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:00:02,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:00:02,257 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:00:02,259 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:00:02,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:00:02,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:00:02,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:02,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:00:02,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:00:02,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:00:02,261 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:00:02,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:00:02,261 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:00:02,261 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:00:02,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:00:02,262 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_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 141cc550f279b59aa80e553b6a405c5654c50ab0a30e94ad7616006c63d0c81e [2023-11-12 01:00:02,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:00:02,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:00:02,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:00:02,571 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:00:02,572 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:00:02,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2023-11-12 01:00:05,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:00:06,308 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:00:06,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2023-11-12 01:00:06,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/data/f29a9d5dc/81a933c4e05f4e22a17e39f838d87932/FLAG5b84362e2 [2023-11-12 01:00:06,731 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/data/f29a9d5dc/81a933c4e05f4e22a17e39f838d87932 [2023-11-12 01:00:06,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:00:06,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:00:06,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:06,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:00:06,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:00:06,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:06" (1/1) ... [2023-11-12 01:00:06,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da456f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:06, skipping insertion in model container [2023-11-12 01:00:06,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:06" (1/1) ... [2023-11-12 01:00:06,928 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:00:10,036 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,042 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,042 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,043 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:10,134 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:00:10,231 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] [2023-11-12 01:00:10,233 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] [2023-11-12 01:00:10,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5260] [2023-11-12 01:00:10,239 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] [2023-11-12 01:00:10,240 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] [2023-11-12 01:00:10,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5416] [2023-11-12 01:00:10,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5424] [2023-11-12 01:00:10,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5432] [2023-11-12 01:00:10,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5439] [2023-11-12 01:00:10,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5446] [2023-11-12 01:00:10,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5453] [2023-11-12 01:00:10,261 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] [2023-11-12 01:00:10,266 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] [2023-11-12 01:00:10,267 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] [2023-11-12 01:00:10,268 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] [2023-11-12 01:00:10,541 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,542 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,542 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,542 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_b63bf61b-0972-48e8-9f91-04df53821581/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] [2023-11-12 01:00:10,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:10,793 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:00:10,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10 WrapperNode [2023-11-12 01:00:10,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:10,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:10,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:00:10,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:00:10,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:10,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,118 INFO L138 Inliner]: procedures = 412, calls = 1895, calls flagged for inlining = 207, calls inlined = 191, statements flattened = 5113 [2023-11-12 01:00:11,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:11,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:00:11,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:00:11,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:00:11,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,413 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,452 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,514 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:00:11,515 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:00:11,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:00:11,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:00:11,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (1/1) ... [2023-11-12 01:00:11,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:11,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:00:11,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:00:11,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b63bf61b-0972-48e8-9f91-04df53821581/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:00:11,583 INFO L130 BoogieDeclarations]: Found specification of procedure check_if_running [2023-11-12 01:00:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure check_if_running [2023-11-12 01:00:11,584 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 01:00:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 01:00:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 01:00:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 01:00:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 01:00:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 01:00:11,585 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 01:00:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 01:00:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_close [2023-11-12 01:00:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_close [2023-11-12 01:00:11,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 01:00:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 01:00:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2023-11-12 01:00:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2023-11-12 01:00:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 01:00:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 01:00:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 01:00:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 01:00:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hamachi_private [2023-11-12 01:00:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hamachi_private [2023-11-12 01:00:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 01:00:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 01:00:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 01:00:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 01:00:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 01:00:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 01:00:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 01:00:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 01:00:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-12 01:00:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-12 01:00:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:00:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-12 01:00:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-12 01:00:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 01:00:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 01:00:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 01:00:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 01:00:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 01:00:11,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 01:00:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 01:00:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 01:00:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:00:11,593 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-12 01:00:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-12 01:00:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 01:00:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 01:00:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-12 01:00:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-12 01:00:11,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 01:00:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 01:00:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 01:00:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 01:00:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2023-11-12 01:00:11,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2023-11-12 01:00:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 01:00:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 01:00:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 01:00:11,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 01:00:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:00:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 01:00:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 01:00:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 01:00:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 01:00:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-12 01:00:11,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-12 01:00:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:00:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 01:00:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 01:00:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 01:00:11,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 01:00:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:00:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 01:00:11,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 01:00:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 01:00:11,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 01:00:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hamachi_private [2023-11-12 01:00:11,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hamachi_private [2023-11-12 01:00:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 01:00:11,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-12 01:00:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 01:00:11,601 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 01:00:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 01:00:11,601 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 01:00:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 01:00:11,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 01:00:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-12 01:00:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-12 01:00:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-12 01:00:11,602 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-12 01:00:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-12 01:00:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-12 01:00:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_nway_reset [2023-11-12 01:00:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_nway_reset [2023-11-12 01:00:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-12 01:00:11,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-12 01:00:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:00:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:00:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 01:00:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 01:00:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 01:00:11,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 01:00:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 01:00:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 01:00:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2023-11-12 01:00:11,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_hamachi_exit_15_2 [2023-11-12 01:00:11,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-12 01:00:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-12 01:00:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 01:00:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 01:00:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_open [2023-11-12 01:00:11,606 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_open [2023-11-12 01:00:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 01:00:11,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 01:00:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 01:00:11,607 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 01:00:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 01:00:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 01:00:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:00:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 01:00:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 01:00:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:00:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 01:00:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 01:00:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 01:00:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 01:00:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 01:00:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 01:00:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 01:00:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 01:00:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 01:00:11,610 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 01:00:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 01:00:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2023-11-12 01:00:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2023-11-12 01:00:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 01:00:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 01:00:11,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-12 01:00:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-12 01:00:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 01:00:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 01:00:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 01:00:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 01:00:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_remove_one [2023-11-12 01:00:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_remove_one [2023-11-12 01:00:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:00:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 01:00:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 01:00:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2023-11-12 01:00:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2023-11-12 01:00:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_get_stats [2023-11-12 01:00:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_get_stats [2023-11-12 01:00:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_tx_timeout [2023-11-12 01:00:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_tx_timeout [2023-11-12 01:00:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 01:00:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 01:00:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-12 01:00:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-12 01:00:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-12 01:00:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-12 01:00:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:00:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure hamachi_timer [2023-11-12 01:00:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure hamachi_timer [2023-11-12 01:00:11,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 01:00:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 01:00:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-12 01:00:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-12 01:00:12,333 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:00:12,337 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:00:12,519 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 01:00:16,094 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 01:00:16,243 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:00:18,694 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:00:18,694 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 01:00:18,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:18 BoogieIcfgContainer [2023-11-12 01:00:18,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:00:18,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:00:18,704 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:00:18,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:00:18,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:00:06" (1/3) ... [2023-11-12 01:00:18,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aecd180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:18, skipping insertion in model container [2023-11-12 01:00:18,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:10" (2/3) ... [2023-11-12 01:00:18,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aecd180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:18, skipping insertion in model container [2023-11-12 01:00:18,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:18" (3/3) ... [2023-11-12 01:00:18,711 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-packetengines-hamachi.cil.i [2023-11-12 01:00:18,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:00:18,732 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 01:00:18,833 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 01:00:18,841 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;@6331e659, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 01:00:18,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 01:00:18,854 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) [2023-11-12 01:00:18,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-11-12 01:00:18,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:00:18,893 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] [2023-11-12 01:00:18,894 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 01:00:18,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:00:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash -149430682, now seen corresponding path program 1 times [2023-11-12 01:00:18,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:00:18,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038937692] [2023-11-12 01:00:18,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:00:18,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:00:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:00:19,836 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-11-12 01:00:19,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:00:19,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038937692] [2023-11-12 01:00:19,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038937692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:00:19,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:00:19,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:00:19,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049279438] [2023-11-12 01:00:19,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:00:19,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:00:19,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:00:19,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:00:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:00:19,905 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 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-12 01:00:23,800 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 [] [2023-11-12 01:00:26,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:28,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:28,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:00:28,078 INFO L93 Difference]: Finished difference Result 3554 states and 5263 transitions. [2023-11-12 01:00:28,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:00:28,081 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, (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 114 [2023-11-12 01:00:28,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:00:28,122 INFO L225 Difference]: With dead ends: 3554 [2023-11-12 01:00:28,122 INFO L226 Difference]: Without dead ends: 2337 [2023-11-12 01:00:28,140 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 [2023-11-12 01:00:28,144 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 1678 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-12 01:00:28,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1678 Valid, 3031 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 540 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2023-11-12 01:00:28,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2023-11-12 01:00:28,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2333. [2023-11-12 01:00:28,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2333 states, 1374 states have (on average 1.3078602620087336) internal successors, (1797), 1427 states have internal predecessors, (1797), 810 states have call successors, (810), 147 states have call predecessors, (810), 146 states have return successors, (806), 780 states have call predecessors, (806), 806 states have call successors, (806) [2023-11-12 01:00:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2333 states to 2333 states and 3413 transitions. [2023-11-12 01:00:28,521 INFO L78 Accepts]: Start accepts. Automaton has 2333 states and 3413 transitions. Word has length 114 [2023-11-12 01:00:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:00:28,523 INFO L495 AbstractCegarLoop]: Abstraction has 2333 states and 3413 transitions. [2023-11-12 01:00:28,523 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, (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) [2023-11-12 01:00:28,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2333 states and 3413 transitions. [2023-11-12 01:00:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-12 01:00:28,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:00:28,534 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] [2023-11-12 01:00:28,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 01:00:28,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 01:00:28,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:00:28,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1299579206, now seen corresponding path program 1 times [2023-11-12 01:00:28,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:00:28,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189565727] [2023-11-12 01:00:28,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:00:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:00:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:00:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 01:00:29,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:00:29,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189565727] [2023-11-12 01:00:29,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189565727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:00:29,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:00:29,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:00:29,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51120851] [2023-11-12 01:00:29,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:00:29,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:00:29,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:00:29,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:00:29,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:00:29,109 INFO L87 Difference]: Start difference. First operand 2333 states and 3413 transitions. 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) [2023-11-12 01:00:33,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:35,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:37,229 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 [] [2023-11-12 01:00:37,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:00:37,308 INFO L93 Difference]: Finished difference Result 6533 states and 9557 transitions. [2023-11-12 01:00:37,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:00:37,309 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 [2023-11-12 01:00:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:00:37,349 INFO L225 Difference]: With dead ends: 6533 [2023-11-12 01:00:37,349 INFO L226 Difference]: Without dead ends: 4219 [2023-11-12 01:00:37,362 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 [2023-11-12 01:00:37,363 INFO L413 NwaCegarLoop]: 1649 mSDtfsCounter, 1460 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-12 01:00:37,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 3112 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 542 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2023-11-12 01:00:37,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2023-11-12 01:00:37,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 4190. [2023-11-12 01:00:37,725 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) [2023-11-12 01:00:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4190 states to 4190 states and 6129 transitions. [2023-11-12 01:00:37,763 INFO L78 Accepts]: Start accepts. Automaton has 4190 states and 6129 transitions. Word has length 113 [2023-11-12 01:00:37,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:00:37,765 INFO L495 AbstractCegarLoop]: Abstraction has 4190 states and 6129 transitions. [2023-11-12 01:00:37,765 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) [2023-11-12 01:00:37,765 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states and 6129 transitions. [2023-11-12 01:00:37,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 01:00:37,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:00:37,770 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] [2023-11-12 01:00:37,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 01:00:37,771 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)] === [2023-11-12 01:00:37,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:00:37,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1083519375, now seen corresponding path program 1 times [2023-11-12 01:00:37,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:00:37,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628893678] [2023-11-12 01:00:37,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:00:37,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:00:37,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:00:38,095 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-12 01:00:38,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:00:38,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628893678] [2023-11-12 01:00:38,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628893678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:00:38,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:00:38,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 01:00:38,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111549304] [2023-11-12 01:00:38,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:00:38,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 01:00:38,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:00:38,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 01:00:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 01:00:38,099 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) [2023-11-12 01:00:41,067 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 [] [2023-11-12 01:00:44,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:46,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:00:46,439 INFO L93 Difference]: Finished difference Result 11880 states and 17345 transitions. [2023-11-12 01:00:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 01:00:46,440 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 [2023-11-12 01:00:46,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:00:46,516 INFO L225 Difference]: With dead ends: 11880 [2023-11-12 01:00:46,517 INFO L226 Difference]: Without dead ends: 7709 [2023-11-12 01:00:46,542 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 [2023-11-12 01:00:46,546 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 1510 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s 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, 7.9s IncrementalHoareTripleChecker+Time [2023-11-12 01:00:46,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 2991 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 555 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2023-11-12 01:00:46,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2023-11-12 01:00:47,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 7678. [2023-11-12 01:00:47,211 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) [2023-11-12 01:00:47,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7678 states to 7678 states and 11185 transitions. [2023-11-12 01:00:47,262 INFO L78 Accepts]: Start accepts. Automaton has 7678 states and 11185 transitions. Word has length 117 [2023-11-12 01:00:47,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:00:47,264 INFO L495 AbstractCegarLoop]: Abstraction has 7678 states and 11185 transitions. [2023-11-12 01:00:47,265 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) [2023-11-12 01:00:47,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7678 states and 11185 transitions. [2023-11-12 01:00:47,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-12 01:00:47,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:00:47,275 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] [2023-11-12 01:00:47,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 01:00:47,276 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)] === [2023-11-12 01:00:47,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:00:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1583016200, now seen corresponding path program 1 times [2023-11-12 01:00:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:00:47,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012859346] [2023-11-12 01:00:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:00:47,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:00:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 01:00:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-11-12 01:00:47,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 01:00:47,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012859346] [2023-11-12 01:00:47,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012859346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 01:00:47,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 01:00:47,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 01:00:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681716627] [2023-11-12 01:00:47,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 01:00:47,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 01:00:47,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 01:00:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 01:00:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 01:00:47,987 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) [2023-11-12 01:00:51,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:53,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 01:00:55,698 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 [] [2023-11-12 01:00:56,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 01:00:56,226 INFO L93 Difference]: Finished difference Result 7684 states and 11190 transitions. [2023-11-12 01:00:56,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 01:00:56,229 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 [2023-11-12 01:00:56,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 01:00:56,298 INFO L225 Difference]: With dead ends: 7684 [2023-11-12 01:00:56,298 INFO L226 Difference]: Without dead ends: 7682 [2023-11-12 01:00:56,304 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 [2023-11-12 01:00:56,309 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 [2023-11-12 01:00:56,310 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] [2023-11-12 01:00:56,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7682 states. [2023-11-12 01:00:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7682 to 7682. [2023-11-12 01:00:56,863 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) [2023-11-12 01:00:57,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7682 states to 7682 states and 11188 transitions. [2023-11-12 01:00:57,040 INFO L78 Accepts]: Start accepts. Automaton has 7682 states and 11188 transitions. Word has length 162 [2023-11-12 01:00:57,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 01:00:57,041 INFO L495 AbstractCegarLoop]: Abstraction has 7682 states and 11188 transitions. [2023-11-12 01:00:57,041 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) [2023-11-12 01:00:57,042 INFO L276 IsEmpty]: Start isEmpty. Operand 7682 states and 11188 transitions. [2023-11-12 01:00:57,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-12 01:00:57,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 01:00:57,049 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 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] [2023-11-12 01:00:57,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 01:00:57,049 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)] === [2023-11-12 01:00:57,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 01:00:57,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1994363857, now seen corresponding path program 1 times [2023-11-12 01:00:57,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 01:00:57,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640927426] [2023-11-12 01:00:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 01:00:57,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 01:00:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat