./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91 --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 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:08:23,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:08:23,739 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:08:23,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:08:23,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:08:23,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:08:23,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:08:23,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:08:23,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:08:23,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:08:23,772 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:08:23,773 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:08:23,773 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:08:23,774 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:08:23,774 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:08:23,775 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:08:23,775 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:08:23,776 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:08:23,776 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:08:23,777 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:08:23,777 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:08:23,778 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:08:23,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:08:23,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:08:23,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:08:23,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:08:23,780 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:08:23,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:08:23,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:08:23,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:08:23,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:08:23,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:08:23,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:08:23,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:08:23,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:23,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:08:23,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:08:23,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:08:23,784 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:08:23,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:08:23,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:08:23,784 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:08:23,785 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:08:23,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:08:23,785 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2023-11-25 00:08:24,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:08:24,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:08:24,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:08:24,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:08:24,047 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:08:24,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-25 00:08:27,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:08:28,051 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:08:28,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-25 00:08:28,104 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/data/ec2c8691d/88bcc64b2d244f67a6e421f733b5846f/FLAG50dbc8cf7 [2023-11-25 00:08:28,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/data/ec2c8691d/88bcc64b2d244f67a6e421f733b5846f [2023-11-25 00:08:28,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:08:28,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:08:28,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:28,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:08:28,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:08:28,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:28" (1/1) ... [2023-11-25 00:08:28,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f24e201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:28, skipping insertion in model container [2023-11-25 00:08:28,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:08:28" (1/1) ... [2023-11-25 00:08:28,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:08:31,465 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2023-11-25 00:08:31,471 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2023-11-25 00:08:31,472 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2023-11-25 00:08:31,472 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2023-11-25 00:08:31,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:31,550 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:08:31,746 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"); [5761] [2023-11-25 00:08:31,748 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)); [5768] [2023-11-25 00:08:31,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5775] [2023-11-25 00:08:31,751 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/520b8de/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5805-5806] [2023-11-25 00:08:31,751 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"); [5811-5813] [2023-11-25 00:08:31,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5894] [2023-11-25 00:08:31,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5902] [2023-11-25 00:08:32,064 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2023-11-25 00:08:32,065 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2023-11-25 00:08:32,066 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2023-11-25 00:08:32,066 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_052fabdf-9268-4a6b-b9b8-cc433c96d686/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2023-11-25 00:08:32,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:08:32,219 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:08:32,227 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:08:32,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32 WrapperNode [2023-11-25 00:08:32,229 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:08:32,230 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:32,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:08:32,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:08:32,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,614 INFO L138 Inliner]: procedures = 386, calls = 2104, calls flagged for inlining = 151, calls inlined = 130, statements flattened = 4763 [2023-11-25 00:08:32,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:08:32,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:08:32,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:08:32,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:08:32,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,872 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:08:32,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:08:32,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:08:32,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:08:32,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (1/1) ... [2023-11-25 00:08:32,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:08:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:08:32,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:08:33,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_052fabdf-9268-4a6b-b9b8-cc433c96d686/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:08:33,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:08:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:08:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2023-11-25 00:08:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2023-11-25 00:08:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2023-11-25 00:08:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2023-11-25 00:08:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-25 00:08:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-25 00:08:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:08:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:08:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2023-11-25 00:08:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2023-11-25 00:08:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-25 00:08:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-25 00:08:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2023-11-25 00:08:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2023-11-25 00:08:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:08:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-25 00:08:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2023-11-25 00:08:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2023-11-25 00:08:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2023-11-25 00:08:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2023-11-25 00:08:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-25 00:08:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-25 00:08:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-25 00:08:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:08:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:08:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2023-11-25 00:08:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2023-11-25 00:08:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2023-11-25 00:08:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2023-11-25 00:08:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-25 00:08:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-25 00:08:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:08:33,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:08:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:08:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2023-11-25 00:08:33,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2023-11-25 00:08:33,025 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2023-11-25 00:08:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2023-11-25 00:08:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-25 00:08:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-25 00:08:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2023-11-25 00:08:33,026 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2023-11-25 00:08:33,026 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:08:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:08:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2023-11-25 00:08:33,027 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2023-11-25 00:08:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2023-11-25 00:08:33,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2023-11-25 00:08:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:08:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2023-11-25 00:08:33,029 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2023-11-25 00:08:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-25 00:08:33,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-25 00:08:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2023-11-25 00:08:33,030 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2023-11-25 00:08:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-25 00:08:33,030 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-25 00:08:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:08:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:08:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:08:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2023-11-25 00:08:33,032 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2023-11-25 00:08:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:08:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2023-11-25 00:08:33,033 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2023-11-25 00:08:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:08:33,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:08:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-25 00:08:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-25 00:08:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2023-11-25 00:08:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2023-11-25 00:08:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2023-11-25 00:08:33,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2023-11-25 00:08:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2023-11-25 00:08:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2023-11-25 00:08:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:08:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-25 00:08:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2023-11-25 00:08:33,036 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2023-11-25 00:08:33,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:08:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2023-11-25 00:08:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2023-11-25 00:08:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:08:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:08:33,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:08:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-25 00:08:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-25 00:08:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:08:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:08:33,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:08:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:08:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:08:33,039 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2023-11-25 00:08:33,039 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2023-11-25 00:08:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-25 00:08:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-25 00:08:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-25 00:08:33,040 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-25 00:08:33,040 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2023-11-25 00:08:33,041 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2023-11-25 00:08:33,041 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2023-11-25 00:08:33,042 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2023-11-25 00:08:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-25 00:08:33,042 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-25 00:08:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-25 00:08:33,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-25 00:08:33,042 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2023-11-25 00:08:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2023-11-25 00:08:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:08:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:08:33,043 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2023-11-25 00:08:33,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2023-11-25 00:08:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:08:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:08:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:08:33,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:08:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2023-11-25 00:08:33,044 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2023-11-25 00:08:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:08:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-25 00:08:33,045 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-25 00:08:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-25 00:08:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2023-11-25 00:08:33,046 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2023-11-25 00:08:33,046 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2023-11-25 00:08:33,046 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2023-11-25 00:08:33,047 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-25 00:08:33,048 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-25 00:08:33,048 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2023-11-25 00:08:33,049 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2023-11-25 00:08:33,052 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2023-11-25 00:08:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2023-11-25 00:08:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-25 00:08:33,053 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-25 00:08:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:08:33,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:08:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2023-11-25 00:08:33,055 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2023-11-25 00:08:33,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:08:33,061 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:08:33,061 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:08:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-25 00:08:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-25 00:08:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-25 00:08:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-25 00:08:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:08:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:08:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-25 00:08:33,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-25 00:08:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:08:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:08:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-25 00:08:33,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-25 00:08:33,064 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2023-11-25 00:08:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2023-11-25 00:08:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-25 00:08:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-25 00:08:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-25 00:08:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-25 00:08:33,065 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-25 00:08:33,065 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-25 00:08:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-25 00:08:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-25 00:08:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-25 00:08:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-25 00:08:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:08:33,066 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-25 00:08:33,066 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-25 00:08:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2023-11-25 00:08:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2023-11-25 00:08:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-25 00:08:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-25 00:08:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:08:33,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:08:33,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-25 00:08:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-25 00:08:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2023-11-25 00:08:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2023-11-25 00:08:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2023-11-25 00:08:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2023-11-25 00:08:33,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:08:33,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:08:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2023-11-25 00:08:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2023-11-25 00:08:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2023-11-25 00:08:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2023-11-25 00:08:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2023-11-25 00:08:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2023-11-25 00:08:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-25 00:08:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-25 00:08:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:08:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-25 00:08:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-25 00:08:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:08:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:08:33,070 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-11-25 00:08:33,070 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-11-25 00:08:33,856 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:08:33,860 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:08:34,111 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:08:41,525 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:08:43,680 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:08:43,680 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:08:43,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:43 BoogieIcfgContainer [2023-11-25 00:08:43,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:08:43,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:08:43,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:08:43,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:08:43,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:08:28" (1/3) ... [2023-11-25 00:08:43,692 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557c680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:43, skipping insertion in model container [2023-11-25 00:08:43,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:08:32" (2/3) ... [2023-11-25 00:08:43,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557c680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:08:43, skipping insertion in model container [2023-11-25 00:08:43,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:08:43" (3/3) ... [2023-11-25 00:08:43,695 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-25 00:08:43,718 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:08:43,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:08:43,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:08:43,835 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;@18a63afa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:08:43,835 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:08:43,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 1672 states, 890 states have (on average 1.2393258426966292) internal successors, (1103), 920 states have internal predecessors, (1103), 687 states have call successors, (687), 92 states have call predecessors, (687), 91 states have return successors, (684), 673 states have call predecessors, (684), 684 states have call successors, (684) [2023-11-25 00:08:43,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-25 00:08:43,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:43,861 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-25 00:08:43,861 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)] === [2023-11-25 00:08:43,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:43,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1979352896, now seen corresponding path program 1 times [2023-11-25 00:08:43,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:08:43,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319763754] [2023-11-25 00:08:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:43,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:08:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:44,937 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-25 00:08:44,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:08:44,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319763754] [2023-11-25 00:08:44,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319763754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:44,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:44,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:08:44,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243330052] [2023-11-25 00:08:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:44,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:08:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:08:44,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:08:44,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:08:44,996 INFO L87 Difference]: Start difference. First operand has 1672 states, 890 states have (on average 1.2393258426966292) internal successors, (1103), 920 states have internal predecessors, (1103), 687 states have call successors, (687), 92 states have call predecessors, (687), 91 states have return successors, (684), 673 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-25 00:08:49,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:08:51,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:08:51,071 INFO L93 Difference]: Finished difference Result 3322 states and 4948 transitions. [2023-11-25 00:08:51,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:08:51,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-11-25 00:08:51,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:08:51,116 INFO L225 Difference]: With dead ends: 3322 [2023-11-25 00:08:51,117 INFO L226 Difference]: Without dead ends: 1666 [2023-11-25 00:08:51,136 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 [2023-11-25 00:08:51,139 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 2446 mSDsluCounter, 4520 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 6788 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:08:51,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 6788 Invalid, 617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-25 00:08:51,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2023-11-25 00:08:51,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1666. [2023-11-25 00:08:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1666 states, 888 states have (on average 1.2342342342342343) internal successors, (1096), 918 states have internal predecessors, (1096), 684 states have call successors, (684), 92 states have call predecessors, (684), 91 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-25 00:08:51,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1666 states to 1666 states and 2461 transitions. [2023-11-25 00:08:51,430 INFO L78 Accepts]: Start accepts. Automaton has 1666 states and 2461 transitions. Word has length 39 [2023-11-25 00:08:51,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:08:51,431 INFO L495 AbstractCegarLoop]: Abstraction has 1666 states and 2461 transitions. [2023-11-25 00:08:51,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-25 00:08:51,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1666 states and 2461 transitions. [2023-11-25 00:08:51,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-25 00:08:51,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:51,436 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-25 00:08:51,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:08:51,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-25 00:08:51,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:51,439 INFO L85 PathProgramCache]: Analyzing trace with hash 65340686, now seen corresponding path program 1 times [2023-11-25 00:08:51,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:08:51,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818924200] [2023-11-25 00:08:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:51,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:08:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-25 00:08:52,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:08:52,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818924200] [2023-11-25 00:08:52,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818924200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:52,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:52,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:08:52,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403472570] [2023-11-25 00:08:52,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:52,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:08:52,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:08:52,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:08:52,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:08:52,066 INFO L87 Difference]: Start difference. First operand 1666 states and 2461 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 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) [2023-11-25 00:08:56,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:08:56,982 INFO L93 Difference]: Finished difference Result 1672 states and 2466 transitions. [2023-11-25 00:08:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:08:56,983 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 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) Word has length 44 [2023-11-25 00:08:56,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:08:57,007 INFO L225 Difference]: With dead ends: 1672 [2023-11-25 00:08:57,007 INFO L226 Difference]: Without dead ends: 1670 [2023-11-25 00:08:57,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:08:57,011 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 2431 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:08:57,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2443 Valid, 6758 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-25 00:08:57,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2023-11-25 00:08:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2023-11-25 00:08:57,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 891 states have (on average 1.2334455667789002) internal successors, (1099), 921 states have internal predecessors, (1099), 684 states have call successors, (684), 93 states have call predecessors, (684), 92 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-25 00:08:57,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2464 transitions. [2023-11-25 00:08:57,244 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2464 transitions. Word has length 44 [2023-11-25 00:08:57,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:08:57,244 INFO L495 AbstractCegarLoop]: Abstraction has 1670 states and 2464 transitions. [2023-11-25 00:08:57,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 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) [2023-11-25 00:08:57,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2464 transitions. [2023-11-25 00:08:57,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-25 00:08:57,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:08:57,255 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-25 00:08:57,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:08:57,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2023-11-25 00:08:57,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:08:57,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2137656949, now seen corresponding path program 1 times [2023-11-25 00:08:57,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:08:57,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334156629] [2023-11-25 00:08:57,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:08:57,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:08:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:08:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-25 00:08:57,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:08:57,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334156629] [2023-11-25 00:08:57,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334156629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:08:57,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:08:57,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:08:57,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284040733] [2023-11-25 00:08:57,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:08:57,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:08:57,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:08:57,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:08:57,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:08:57,697 INFO L87 Difference]: Start difference. First operand 1670 states and 2464 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-25 00:09:00,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:03,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:03,766 INFO L93 Difference]: Finished difference Result 1676 states and 2469 transitions. [2023-11-25 00:09:03,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:09:03,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-11-25 00:09:03,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:03,784 INFO L225 Difference]: With dead ends: 1676 [2023-11-25 00:09:03,784 INFO L226 Difference]: Without dead ends: 1674 [2023-11-25 00:09:03,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:09:03,788 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 2428 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:03,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2439 Valid, 6758 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-25 00:09:03,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2023-11-25 00:09:03,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1674. [2023-11-25 00:09:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1674 states, 894 states have (on average 1.232662192393736) internal successors, (1102), 924 states have internal predecessors, (1102), 684 states have call successors, (684), 94 states have call predecessors, (684), 93 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-25 00:09:03,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1674 states to 1674 states and 2467 transitions. [2023-11-25 00:09:03,961 INFO L78 Accepts]: Start accepts. Automaton has 1674 states and 2467 transitions. Word has length 52 [2023-11-25 00:09:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:03,962 INFO L495 AbstractCegarLoop]: Abstraction has 1674 states and 2467 transitions. [2023-11-25 00:09:03,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-25 00:09:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1674 states and 2467 transitions. [2023-11-25 00:09:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-25 00:09:03,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:03,964 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2023-11-25 00:09:03,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:09:03,964 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)] === [2023-11-25 00:09:03,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1143793657, now seen corresponding path program 1 times [2023-11-25 00:09:03,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:03,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040022202] [2023-11-25 00:09:03,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:03,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:04,332 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-25 00:09:04,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:04,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040022202] [2023-11-25 00:09:04,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040022202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:04,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:04,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:09:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540091582] [2023-11-25 00:09:04,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:04,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:09:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:04,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:09:04,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:09:04,336 INFO L87 Difference]: Start difference. First operand 1674 states and 2467 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-25 00:09:08,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:09,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:09,720 INFO L93 Difference]: Finished difference Result 1680 states and 2472 transitions. [2023-11-25 00:09:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:09:09,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 57 [2023-11-25 00:09:09,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:09,740 INFO L225 Difference]: With dead ends: 1680 [2023-11-25 00:09:09,740 INFO L226 Difference]: Without dead ends: 1678 [2023-11-25 00:09:09,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:09:09,747 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 2428 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:09,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 6758 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-25 00:09:09,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2023-11-25 00:09:09,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1678. [2023-11-25 00:09:09,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1678 states, 897 states have (on average 1.2318840579710144) internal successors, (1105), 927 states have internal predecessors, (1105), 684 states have call successors, (684), 95 states have call predecessors, (684), 94 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-25 00:09:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 2470 transitions. [2023-11-25 00:09:09,991 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 2470 transitions. Word has length 57 [2023-11-25 00:09:09,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:09,993 INFO L495 AbstractCegarLoop]: Abstraction has 1678 states and 2470 transitions. [2023-11-25 00:09:09,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-25 00:09:09,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 2470 transitions. [2023-11-25 00:09:09,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-25 00:09:09,997 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:09,997 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 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] [2023-11-25 00:09:09,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:09:09,998 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)] === [2023-11-25 00:09:09,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1436973237, now seen corresponding path program 1 times [2023-11-25 00:09:09,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:09,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220062504] [2023-11-25 00:09:09,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:09,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:10,396 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-25 00:09:10,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:10,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220062504] [2023-11-25 00:09:10,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220062504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:10,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:10,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:09:10,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880057758] [2023-11-25 00:09:10,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:10,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:09:10,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:10,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:09:10,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:09:10,399 INFO L87 Difference]: Start difference. First operand 1678 states and 2470 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-25 00:09:12,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:15,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:09:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:09:16,414 INFO L93 Difference]: Finished difference Result 1684 states and 2475 transitions. [2023-11-25 00:09:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:09:16,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 62 [2023-11-25 00:09:16,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:09:16,432 INFO L225 Difference]: With dead ends: 1684 [2023-11-25 00:09:16,432 INFO L226 Difference]: Without dead ends: 1682 [2023-11-25 00:09:16,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:09:16,435 INFO L413 NwaCegarLoop]: 2260 mSDtfsCounter, 2428 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-25 00:09:16,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 6758 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-25 00:09:16,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2023-11-25 00:09:16,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1682. [2023-11-25 00:09:16,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1682 states, 900 states have (on average 1.231111111111111) internal successors, (1108), 930 states have internal predecessors, (1108), 684 states have call successors, (684), 96 states have call predecessors, (684), 95 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-25 00:09:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2473 transitions. [2023-11-25 00:09:16,696 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2473 transitions. Word has length 62 [2023-11-25 00:09:16,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:09:16,698 INFO L495 AbstractCegarLoop]: Abstraction has 1682 states and 2473 transitions. [2023-11-25 00:09:16,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-25 00:09:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2473 transitions. [2023-11-25 00:09:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-25 00:09:16,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:09:16,701 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 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] [2023-11-25 00:09:16,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:09:16,701 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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)] === [2023-11-25 00:09:16,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:09:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1116935481, now seen corresponding path program 1 times [2023-11-25 00:09:16,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:09:16,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693540104] [2023-11-25 00:09:16,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:09:16,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:09:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:09:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-25 00:09:17,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:09:17,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693540104] [2023-11-25 00:09:17,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693540104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:09:17,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:09:17,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:09:17,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631468777] [2023-11-25 00:09:17,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:09:17,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:09:17,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:09:17,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:09:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:09:17,025 INFO L87 Difference]: Start difference. First operand 1682 states and 2473 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11)