./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-wan-farsync.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:19,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:19,693 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:57:19,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:19,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:19,741 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:19,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:19,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:19,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:19,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:19,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:19,750 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:19,750 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:19,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:19,752 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:19,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:19,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:19,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:19,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:19,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:19,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:19,755 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:19,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:19,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:19,757 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:19,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:19,758 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:19,758 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:19,758 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:19,759 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:19,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:19,760 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:19,761 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:19,761 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:19,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:19,761 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:19,761 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dcd453e519a411dcaaa8ea095e5544a2fd8cdb9a31e662fc6de670ff7f7c541 [2023-11-19 07:57:20,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:20,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:20,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:20,119 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:20,120 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:20,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2023-11-19 07:57:23,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:23,913 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:23,914 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2023-11-19 07:57:23,967 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/data/9d7437210/e33d22daba3d4654a0b422f01ce6b62a/FLAG98c24ae0c [2023-11-19 07:57:23,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/data/9d7437210/e33d22daba3d4654a0b422f01ce6b62a [2023-11-19 07:57:23,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:23,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:23,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:23,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:24,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:24,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:23" (1/1) ... [2023-11-19 07:57:24,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d802eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:24, skipping insertion in model container [2023-11-19 07:57:24,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:23" (1/1) ... [2023-11-19 07:57:24,157 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:27,066 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2023-11-19 07:57:27,070 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2023-11-19 07:57:27,071 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2023-11-19 07:57:27,072 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2023-11-19 07:57:27,088 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:27,121 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:27,224 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"); [5287] [2023-11-19 07:57:27,226 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)); [5294] [2023-11-19 07:57:27,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5301] [2023-11-19 07:57:27,229 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)); [5339-5340] [2023-11-19 07:57:27,229 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"); [5345-5347] [2023-11-19 07:57:27,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5425] [2023-11-19 07:57:27,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5433] [2023-11-19 07:57:27,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5441] [2023-11-19 07:57:27,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [5448] [2023-11-19 07:57:27,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5455] [2023-11-19 07:57:27,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5462] [2023-11-19 07:57:27,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5499] [2023-11-19 07:57:27,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5507] [2023-11-19 07:57:27,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5514] [2023-11-19 07:57:27,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5521] [2023-11-19 07:57:27,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5529] [2023-11-19 07:57:27,540 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[320934,320947] [2023-11-19 07:57:27,541 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321103,321116] [2023-11-19 07:57:27,541 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321270,321283] [2023-11-19 07:57:27,542 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_d175ca2c-66b9-43cb-8764-8d8f820c0426/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i[321438,321451] [2023-11-19 07:57:27,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:27,746 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:27,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27 WrapperNode [2023-11-19 07:57:27,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:27,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:27,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:27,749 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:27,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:27,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,084 INFO L138 Inliner]: procedures = 418, calls = 2017, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 5463 [2023-11-19 07:57:28,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:28,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:28,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:28,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:28,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:28,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:28,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:28,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:28,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (1/1) ... [2023-11-19 07:57:28,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:28,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:28,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:28,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d175ca2c-66b9-43cb-8764-8d8f820c0426/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:28,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2023-11-19 07:57:28,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fst_cleanup_module_12_2 [2023-11-19 07:57:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 07:57:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 07:57:28,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 07:57:28,561 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 07:57:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 07:57:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 07:57:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:57:28,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:57:28,562 INFO L130 BoogieDeclarations]: Found specification of procedure fst_remove_one [2023-11-19 07:57:28,563 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_remove_one [2023-11-19 07:57:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 07:57:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 07:57:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 07:57:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 07:57:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 07:57:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 07:57:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 07:57:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 07:57:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-19 07:57:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-19 07:57:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 07:57:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 07:57:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_67 [2023-11-19 07:57:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_67 [2023-11-19 07:57:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:57:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:57:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure fst_close [2023-11-19 07:57:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_close [2023-11-19 07:57:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 07:57:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 07:57:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 07:57:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 07:57:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 07:57:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 07:57:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure fst_tx_timeout [2023-11-19 07:57:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_tx_timeout [2023-11-19 07:57:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 07:57:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 07:57:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:57:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 07:57:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 07:57:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure fst_open [2023-11-19 07:57:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_open [2023-11-19 07:57:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2023-11-19 07:57:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2023-11-19 07:57:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 07:57:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 07:57:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:57:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:57:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:57:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 07:57:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 07:57:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:57:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:57:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:57:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 07:57:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 07:57:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:57:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-19 07:57:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-19 07:57:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:57:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:57:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2023-11-19 07:57:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2023-11-19 07:57:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 07:57:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 07:57:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 07:57:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 07:57:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 07:57:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 07:57:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 07:57:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 07:57:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 07:57:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 07:57:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 07:57:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 07:57:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:57:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 07:57:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 07:57:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 07:57:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 07:57:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_card_lock_of_fst_card_info [2023-11-19 07:57:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_card_lock_of_fst_card_info [2023-11-19 07:57:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2023-11-19 07:57:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2023-11-19 07:57:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 07:57:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 07:57:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:57:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:57:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 07:57:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-19 07:57:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-19 07:57:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:57:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 07:57:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-19 07:57:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-19 07:57:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2023-11-19 07:57:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2023-11-19 07:57:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 07:57:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 07:57:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 07:57:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 07:57:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 07:57:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 07:57:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 07:57:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 07:57:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 07:57:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 07:57:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2023-11-19 07:57:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2023-11-19 07:57:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-19 07:57:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-19 07:57:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:57:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:57:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:57:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:57:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 07:57:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 07:57:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 07:57:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 07:57:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:57:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:57:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 07:57:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 07:57:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 07:57:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 07:57:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 07:57:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 07:57:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:57:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-19 07:57:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-19 07:57:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:57:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-11-19 07:57:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-11-19 07:57:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:57:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:57:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:57:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:57:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:57:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 07:57:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 07:57:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-19 07:57:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-19 07:57:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 07:57:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 07:57:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 07:57:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 07:57:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-19 07:57:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-19 07:57:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 07:57:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 07:57:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2023-11-19 07:57:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2023-11-19 07:57:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:57:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:57:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 07:57:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 07:57:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_fst_work_q_lock [2023-11-19 07:57:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_fst_work_q_lock [2023-11-19 07:57:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:57:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:57:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:57:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2023-11-19 07:57:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2023-11-19 07:57:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:57:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:57:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 07:57:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 07:57:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 07:57:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 07:57:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure do_bottom_half_tx [2023-11-19 07:57:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure do_bottom_half_tx [2023-11-19 07:57:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2023-11-19 07:57:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2023-11-19 07:57:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 07:57:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 07:57:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-19 07:57:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-19 07:57:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2023-11-19 07:57:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2023-11-19 07:57:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-19 07:57:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-19 07:57:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 07:57:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 07:57:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-19 07:57:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-19 07:57:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2023-11-19 07:57:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2023-11-19 07:57:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-19 07:57:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-19 07:57:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 07:57:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 07:57:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-19 07:57:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-19 07:57:29,451 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:29,458 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:29,635 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:57:34,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 07:57:34,671 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:34,700 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:34,701 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:57:34,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:34 BoogieIcfgContainer [2023-11-19 07:57:34,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:34,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:34,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:34,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:34,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:23" (1/3) ... [2023-11-19 07:57:34,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197af6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:34, skipping insertion in model container [2023-11-19 07:57:34,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:27" (2/3) ... [2023-11-19 07:57:34,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197af6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:34, skipping insertion in model container [2023-11-19 07:57:34,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:34" (3/3) ... [2023-11-19 07:57:34,736 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-farsync.cil.i [2023-11-19 07:57:34,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:34,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 07:57:34,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:34,858 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3340b9a6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:34,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 07:57:34,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 1921 states, 1315 states have (on average 1.3019011406844105) internal successors, (1712), 1329 states have internal predecessors, (1712), 512 states have call successors, (512), 92 states have call predecessors, (512), 91 states have return successors, (505), 503 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-19 07:57:34,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 07:57:34,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:34,893 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:34,894 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)] === [2023-11-19 07:57:34,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:34,900 INFO L85 PathProgramCache]: Analyzing trace with hash 916998846, now seen corresponding path program 1 times [2023-11-19 07:57:34,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:34,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295159577] [2023-11-19 07:57:34,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:34,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:57:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:57:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:57:35,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:57:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:57:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:57:35,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:35,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-19 07:57:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:36,003 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-19 07:57:36,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:36,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295159577] [2023-11-19 07:57:36,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295159577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:36,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:36,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:36,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320343998] [2023-11-19 07:57:36,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:36,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:36,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:36,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:36,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:36,077 INFO L87 Difference]: Start difference. First operand has 1921 states, 1315 states have (on average 1.3019011406844105) internal successors, (1712), 1329 states have internal predecessors, (1712), 512 states have call successors, (512), 92 states have call predecessors, (512), 91 states have return successors, (505), 503 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:57:42,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:42,949 INFO L93 Difference]: Finished difference Result 5643 states and 8152 transitions. [2023-11-19 07:57:42,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2023-11-19 07:57:42,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:43,018 INFO L225 Difference]: With dead ends: 5643 [2023-11-19 07:57:43,019 INFO L226 Difference]: Without dead ends: 3726 [2023-11-19 07:57:43,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:43,042 INFO L413 NwaCegarLoop]: 1882 mSDtfsCounter, 3235 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 2452 mSolverCounterSat, 1235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3701 SdHoareTripleChecker+Valid, 4488 SdHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1235 IncrementalHoareTripleChecker+Valid, 2452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:43,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3701 Valid, 4488 Invalid, 3687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1235 Valid, 2452 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-19 07:57:43,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2023-11-19 07:57:43,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3704. [2023-11-19 07:57:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3704 states, 2554 states have (on average 1.297572435395458) internal successors, (3314), 2581 states have internal predecessors, (3314), 969 states have call successors, (969), 179 states have call predecessors, (969), 178 states have return successors, (965), 961 states have call predecessors, (965), 965 states have call successors, (965) [2023-11-19 07:57:43,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3704 states to 3704 states and 5248 transitions. [2023-11-19 07:57:43,417 INFO L78 Accepts]: Start accepts. Automaton has 3704 states and 5248 transitions. Word has length 83 [2023-11-19 07:57:43,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:43,420 INFO L495 AbstractCegarLoop]: Abstraction has 3704 states and 5248 transitions. [2023-11-19 07:57:43,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:57:43,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3704 states and 5248 transitions. [2023-11-19 07:57:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 07:57:43,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:43,436 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:43,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:57:43,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 07:57:43,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2008531679, now seen corresponding path program 1 times [2023-11-19 07:57:43,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:43,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246378226] [2023-11-19 07:57:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:43,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:57:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:57:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:57:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:57:43,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:57:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:57:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-19 07:57:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-19 07:57:43,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:43,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246378226] [2023-11-19 07:57:43,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246378226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:43,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:43,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:57:43,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620774272] [2023-11-19 07:57:43,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:43,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:57:43,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:43,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:57:43,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:57:43,901 INFO L87 Difference]: Start difference. First operand 3704 states and 5248 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:57:50,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:57:50,047 INFO L93 Difference]: Finished difference Result 10232 states and 14453 transitions. [2023-11-19 07:57:50,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:57:50,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2023-11-19 07:57:50,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:57:50,103 INFO L225 Difference]: With dead ends: 10232 [2023-11-19 07:57:50,103 INFO L226 Difference]: Without dead ends: 6543 [2023-11-19 07:57:50,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:57:50,117 INFO L413 NwaCegarLoop]: 1870 mSDtfsCounter, 2702 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 1160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3069 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 3603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1160 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:57:50,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3069 Valid, 4484 Invalid, 3603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1160 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-19 07:57:50,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6543 states. [2023-11-19 07:57:50,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6543 to 6477. [2023-11-19 07:57:50,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 4452 states have (on average 1.2922282120395328) internal successors, (5753), 4504 states have internal predecessors, (5753), 1681 states have call successors, (1681), 342 states have call predecessors, (1681), 341 states have return successors, (1683), 1662 states have call predecessors, (1683), 1677 states have call successors, (1683) [2023-11-19 07:57:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 9117 transitions. [2023-11-19 07:57:50,612 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 9117 transitions. Word has length 95 [2023-11-19 07:57:50,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:57:50,615 INFO L495 AbstractCegarLoop]: Abstraction has 6477 states and 9117 transitions. [2023-11-19 07:57:50,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:57:50,615 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 9117 transitions. [2023-11-19 07:57:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 07:57:50,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:50,621 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:50,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:57:50,621 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)] === [2023-11-19 07:57:50,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash 68516491, now seen corresponding path program 1 times [2023-11-19 07:57:50,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:50,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873950208] [2023-11-19 07:57:50,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:50,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:57:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:57:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:57:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:57:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:57:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:57:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:57:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:57:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:57:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:57:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-19 07:57:51,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:57:51,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873950208] [2023-11-19 07:57:51,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873950208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:57:51,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:57:51,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:57:51,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533218171] [2023-11-19 07:57:51,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:57:51,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:57:51,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:57:51,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:57:51,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:57:51,282 INFO L87 Difference]: Start difference. First operand 6477 states and 9117 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:58:01,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:01,598 INFO L93 Difference]: Finished difference Result 14847 states and 20907 transitions. [2023-11-19 07:58:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:58:01,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2023-11-19 07:58:01,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:01,665 INFO L225 Difference]: With dead ends: 14847 [2023-11-19 07:58:01,665 INFO L226 Difference]: Without dead ends: 8385 [2023-11-19 07:58:01,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:58:01,689 INFO L413 NwaCegarLoop]: 2168 mSDtfsCounter, 8688 mSDsluCounter, 4173 mSDsCounter, 0 mSdLazyCounter, 5467 mSolverCounterSat, 3454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9593 SdHoareTripleChecker+Valid, 6341 SdHoareTripleChecker+Invalid, 8921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3454 IncrementalHoareTripleChecker+Valid, 5467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:01,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9593 Valid, 6341 Invalid, 8921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3454 Valid, 5467 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-11-19 07:58:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8385 states. [2023-11-19 07:58:02,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8385 to 8297. [2023-11-19 07:58:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8297 states, 5787 states have (on average 1.3070675652324175) internal successors, (7564), 5854 states have internal predecessors, (7564), 2034 states have call successors, (2034), 478 states have call predecessors, (2034), 473 states have return successors, (2033), 2000 states have call predecessors, (2033), 2030 states have call successors, (2033) [2023-11-19 07:58:02,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8297 states to 8297 states and 11631 transitions. [2023-11-19 07:58:02,263 INFO L78 Accepts]: Start accepts. Automaton has 8297 states and 11631 transitions. Word has length 93 [2023-11-19 07:58:02,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:02,265 INFO L495 AbstractCegarLoop]: Abstraction has 8297 states and 11631 transitions. [2023-11-19 07:58:02,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-19 07:58:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand 8297 states and 11631 transitions. [2023-11-19 07:58:02,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-19 07:58:02,268 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:02,269 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:02,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:58:02,269 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 07:58:02,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:02,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1295846581, now seen corresponding path program 1 times [2023-11-19 07:58:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:02,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120079549] [2023-11-19 07:58:02,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:02,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:58:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:58:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:58:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:58:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:58:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:58:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-19 07:58:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:58:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:58:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:58:02,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:58:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:02,548 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-11-19 07:58:02,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:02,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120079549] [2023-11-19 07:58:02,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120079549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:02,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:02,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:02,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877706004] [2023-11-19 07:58:02,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:02,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:58:02,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:02,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:58:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:58:02,552 INFO L87 Difference]: Start difference. First operand 8297 states and 11631 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)