./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/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_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:30,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:30,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:47:30,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:30,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:30,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:30,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:30,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:30,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:30,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:30,440 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:30,441 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:30,442 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:30,444 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:30,444 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:30,445 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:30,445 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:30,446 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:30,446 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:30,447 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:30,447 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:30,448 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:30,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:30,450 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:30,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:30,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:30,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:30,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:30,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:30,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:30,454 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:30,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:30,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:30,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:30,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:30,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:30,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:30,456 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:30,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:30,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:30,457 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:30,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:30,457 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2023-11-12 00:47:30,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:30,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:30,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:30,784 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:30,784 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:30,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-12 00:47:33,936 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:34,662 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:34,664 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-12 00:47:34,734 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/data/dcf36f004/23f6490184004de3802f17eb86d13bcc/FLAG19a232fad [2023-11-12 00:47:34,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/data/dcf36f004/23f6490184004de3802f17eb86d13bcc [2023-11-12 00:47:34,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:34,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:34,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:34,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:34,768 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:34,769 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:34" (1/1) ... [2023-11-12 00:47:34,770 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d439ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:34, skipping insertion in model container [2023-11-12 00:47:34,770 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:34" (1/1) ... [2023-11-12 00:47:35,032 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:37,813 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2023-11-12 00:47:37,821 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2023-11-12 00:47:37,823 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2023-11-12 00:47:37,825 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2023-11-12 00:47:37,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:37,905 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:38,075 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] [2023-11-12 00:47:38,079 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] [2023-11-12 00:47:38,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5775] [2023-11-12 00:47:38,080 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] [2023-11-12 00:47:38,081 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] [2023-11-12 00:47:38,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5894] [2023-11-12 00:47:38,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5902] [2023-11-12 00:47:38,334 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2023-11-12 00:47:38,335 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2023-11-12 00:47:38,336 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2023-11-12 00:47:38,336 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_7e4d3819-5a52-4f69-a074-f16da72cd61c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2023-11-12 00:47:38,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:38,512 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:47:38,520 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:38,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38 WrapperNode [2023-11-12 00:47:38,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:38,523 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:38,523 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:38,523 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:38,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:38,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:38,886 INFO L138 Inliner]: procedures = 386, calls = 2104, calls flagged for inlining = 151, calls inlined = 130, statements flattened = 4671 [2023-11-12 00:47:38,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:38,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:38,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:38,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:38,898 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:38,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:38,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:38,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:39,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:39,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:39,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:39,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:39,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:39,240 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:39,240 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:39,240 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:39,241 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (1/1) ... [2023-11-12 00:47:39,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:39,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:39,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:39,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4d3819-5a52-4f69-a074-f16da72cd61c/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:47:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:47:39,325 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2023-11-12 00:47:39,325 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2023-11-12 00:47:39,326 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2023-11-12 00:47:39,326 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2023-11-12 00:47:39,327 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:47:39,327 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:47:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:47:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:47:39,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2023-11-12 00:47:39,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2023-11-12 00:47:39,329 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 00:47:39,330 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 00:47:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2023-11-12 00:47:39,331 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2023-11-12 00:47:39,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:47:39,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:47:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2023-11-12 00:47:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2023-11-12 00:47:39,334 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2023-11-12 00:47:39,334 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2023-11-12 00:47:39,335 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-12 00:47:39,335 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-12 00:47:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:47:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:47:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:47:39,336 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2023-11-12 00:47:39,336 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2023-11-12 00:47:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2023-11-12 00:47:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2023-11-12 00:47:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-12 00:47:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-12 00:47:39,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:47:39,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:47:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:47:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2023-11-12 00:47:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2023-11-12 00:47:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2023-11-12 00:47:39,338 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2023-11-12 00:47:39,338 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-12 00:47:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-12 00:47:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2023-11-12 00:47:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2023-11-12 00:47:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:47:39,339 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:47:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2023-11-12 00:47:39,340 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2023-11-12 00:47:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2023-11-12 00:47:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2023-11-12 00:47:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:47:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2023-11-12 00:47:39,342 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2023-11-12 00:47:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-12 00:47:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-12 00:47:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2023-11-12 00:47:39,343 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2023-11-12 00:47:39,343 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:47:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:47:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:47:39,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:47:39,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:47:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2023-11-12 00:47:39,345 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2023-11-12 00:47:39,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:47:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:47:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:47:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2023-11-12 00:47:39,346 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2023-11-12 00:47:39,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:47:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:47:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:47:39,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:47:39,347 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2023-11-12 00:47:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2023-11-12 00:47:39,348 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2023-11-12 00:47:39,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2023-11-12 00:47:39,349 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2023-11-12 00:47:39,349 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2023-11-12 00:47:39,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:47:39,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:47:39,349 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2023-11-12 00:47:39,349 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2023-11-12 00:47:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:47:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2023-11-12 00:47:39,350 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2023-11-12 00:47:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:39,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:47:39,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:47:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:47:39,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:47:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:47:39,351 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:47:39,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:47:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:47:39,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:47:39,352 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2023-11-12 00:47:39,353 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2023-11-12 00:47:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:47:39,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:47:39,353 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:47:39,354 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:47:39,354 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2023-11-12 00:47:39,354 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2023-11-12 00:47:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2023-11-12 00:47:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2023-11-12 00:47:39,355 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:47:39,355 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:47:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-12 00:47:39,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-12 00:47:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2023-11-12 00:47:39,356 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2023-11-12 00:47:39,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:39,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2023-11-12 00:47:39,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2023-11-12 00:47:39,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:47:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:47:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:47:39,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:47:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2023-11-12 00:47:39,358 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2023-11-12 00:47:39,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:47:39,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:47:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-12 00:47:39,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-12 00:47:39,359 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2023-11-12 00:47:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2023-11-12 00:47:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2023-11-12 00:47:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2023-11-12 00:47:39,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:47:39,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:47:39,362 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2023-11-12 00:47:39,362 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2023-11-12 00:47:39,363 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2023-11-12 00:47:39,364 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2023-11-12 00:47:39,366 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-12 00:47:39,367 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-12 00:47:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:47:39,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:47:39,368 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2023-11-12 00:47:39,368 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2023-11-12 00:47:39,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:47:39,370 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:47:39,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:47:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:47:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-12 00:47:39,376 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-12 00:47:39,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-12 00:47:39,377 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:47:39,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:47:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-12 00:47:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-12 00:47:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:47:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:47:39,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 00:47:39,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 00:47:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2023-11-12 00:47:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2023-11-12 00:47:39,379 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-12 00:47:39,379 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-12 00:47:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-12 00:47:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-12 00:47:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-12 00:47:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-12 00:47:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:47:39,380 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:47:39,380 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-12 00:47:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-12 00:47:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:47:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-12 00:47:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-12 00:47:39,381 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2023-11-12 00:47:39,381 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2023-11-12 00:47:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-12 00:47:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-12 00:47:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:47:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:47:39,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-12 00:47:39,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-12 00:47:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2023-11-12 00:47:39,383 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2023-11-12 00:47:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2023-11-12 00:47:39,383 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2023-11-12 00:47:39,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:47:39,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:47:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2023-11-12 00:47:39,384 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2023-11-12 00:47:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2023-11-12 00:47:39,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2023-11-12 00:47:39,384 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2023-11-12 00:47:39,384 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2023-11-12 00:47:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-12 00:47:39,385 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-12 00:47:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:47:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-12 00:47:39,385 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-12 00:47:39,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:47:39,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:47:39,386 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-11-12 00:47:39,386 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-11-12 00:47:40,169 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:40,174 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:40,419 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:47:45,568 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:47,961 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:47,962 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:47:47,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:47 BoogieIcfgContainer [2023-11-12 00:47:47,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:47,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:47,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:47,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:47,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:34" (1/3) ... [2023-11-12 00:47:47,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c54887c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:47, skipping insertion in model container [2023-11-12 00:47:47,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:38" (2/3) ... [2023-11-12 00:47:47,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c54887c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:47, skipping insertion in model container [2023-11-12 00:47:47,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:47" (3/3) ... [2023-11-12 00:47:47,981 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-12 00:47:48,003 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:48,003 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:47:48,119 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:48,127 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;@68a76d6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:48,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:47:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 1670 states, 888 states have (on average 1.239864864864865) internal successors, (1101), 920 states have internal predecessors, (1101), 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) [2023-11-12 00:47:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-12 00:47:48,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:48,156 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] [2023-11-12 00:47:48,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:47:48,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:48,165 INFO L85 PathProgramCache]: Analyzing trace with hash -467155996, now seen corresponding path program 1 times [2023-11-12 00:47:48,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:48,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483595161] [2023-11-12 00:47:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:48,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 00:47:49,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:49,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483595161] [2023-11-12 00:47:49,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483595161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:49,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:49,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:47:49,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037460624] [2023-11-12 00:47:49,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:49,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:47:49,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:49,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:47:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:47:49,374 INFO L87 Difference]: Start difference. First operand has 1670 states, 888 states have (on average 1.239864864864865) internal successors, (1101), 920 states have internal predecessors, (1101), 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) [2023-11-12 00:47:54,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:54,170 INFO L93 Difference]: Finished difference Result 3318 states and 4944 transitions. [2023-11-12 00:47:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:47:54,173 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 [2023-11-12 00:47:54,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:54,223 INFO L225 Difference]: With dead ends: 3318 [2023-11-12 00:47:54,223 INFO L226 Difference]: Without dead ends: 1664 [2023-11-12 00:47:54,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:47:54,258 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 2444 mSDsluCounter, 4516 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2458 SdHoareTripleChecker+Valid, 6782 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-12 00:47:54,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2458 Valid, 6782 Invalid, 617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-12 00:47:54,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-12 00:47:54,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2023-11-12 00:47:54,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 886 states have (on average 1.234762979683973) internal successors, (1094), 918 states have internal predecessors, (1094), 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) [2023-11-12 00:47:54,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2459 transitions. [2023-11-12 00:47:54,613 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2459 transitions. Word has length 39 [2023-11-12 00:47:54,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:54,623 INFO L495 AbstractCegarLoop]: Abstraction has 1664 states and 2459 transitions. [2023-11-12 00:47:54,623 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) [2023-11-12 00:47:54,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2459 transitions. [2023-11-12 00:47:54,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-12 00:47:54,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:54,630 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] [2023-11-12 00:47:54,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:47:54,632 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)] === [2023-11-12 00:47:54,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:54,635 INFO L85 PathProgramCache]: Analyzing trace with hash -406129463, now seen corresponding path program 1 times [2023-11-12 00:47:54,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:54,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313605440] [2023-11-12 00:47:54,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:54,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-12 00:47:55,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:47:55,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313605440] [2023-11-12 00:47:55,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313605440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:55,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:55,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:47:55,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728685908] [2023-11-12 00:47:55,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:55,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:47:55,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:47:55,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:47:55,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:47:55,381 INFO L87 Difference]: Start difference. First operand 1664 states and 2459 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) [2023-11-12 00:47:58,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:00,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:02,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:02,669 INFO L93 Difference]: Finished difference Result 1670 states and 2464 transitions. [2023-11-12 00:48:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:48:02,670 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 [2023-11-12 00:48:02,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:02,690 INFO L225 Difference]: With dead ends: 1670 [2023-11-12 00:48:02,690 INFO L226 Difference]: Without dead ends: 1668 [2023-11-12 00:48:02,692 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 [2023-11-12 00:48:02,694 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 2429 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:02,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 6752 Invalid, 617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-11-12 00:48:02,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2023-11-12 00:48:02,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1668. [2023-11-12 00:48:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 889 states have (on average 1.2339707536557931) internal successors, (1097), 921 states have internal predecessors, (1097), 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) [2023-11-12 00:48:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2462 transitions. [2023-11-12 00:48:02,886 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2462 transitions. Word has length 44 [2023-11-12 00:48:02,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:02,887 INFO L495 AbstractCegarLoop]: Abstraction has 1668 states and 2462 transitions. [2023-11-12 00:48:02,887 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) [2023-11-12 00:48:02,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2462 transitions. [2023-11-12 00:48:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-12 00:48:02,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:02,900 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] [2023-11-12 00:48:02,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:48:02,900 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)] === [2023-11-12 00:48:02,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:02,911 INFO L85 PathProgramCache]: Analyzing trace with hash 491269246, now seen corresponding path program 1 times [2023-11-12 00:48:02,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:02,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522381418] [2023-11-12 00:48:02,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:02,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:03,498 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 00:48:03,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:03,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522381418] [2023-11-12 00:48:03,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522381418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:03,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:03,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:48:03,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076949408] [2023-11-12 00:48:03,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:03,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:03,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:03,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:03,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:03,503 INFO L87 Difference]: Start difference. First operand 1668 states and 2462 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) [2023-11-12 00:48:07,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:09,291 INFO L93 Difference]: Finished difference Result 1674 states and 2467 transitions. [2023-11-12 00:48:09,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:48:09,292 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 [2023-11-12 00:48:09,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:09,314 INFO L225 Difference]: With dead ends: 1674 [2023-11-12 00:48:09,314 INFO L226 Difference]: Without dead ends: 1672 [2023-11-12 00:48:09,316 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 [2023-11-12 00:48:09,318 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 2426 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:09,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 6752 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-12 00:48:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2023-11-12 00:48:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2023-11-12 00:48:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 892 states have (on average 1.2331838565022422) internal successors, (1100), 924 states have internal predecessors, (1100), 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) [2023-11-12 00:48:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2465 transitions. [2023-11-12 00:48:09,572 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2465 transitions. Word has length 52 [2023-11-12 00:48:09,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:09,576 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 2465 transitions. [2023-11-12 00:48:09,576 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) [2023-11-12 00:48:09,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2465 transitions. [2023-11-12 00:48:09,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 00:48:09,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:09,581 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] [2023-11-12 00:48:09,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:48:09,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:48:09,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:09,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1488753001, now seen corresponding path program 1 times [2023-11-12 00:48:09,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:09,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351819854] [2023-11-12 00:48:09,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:09,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-12 00:48:10,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:10,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351819854] [2023-11-12 00:48:10,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351819854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:10,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:10,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:48:10,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946851745] [2023-11-12 00:48:10,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:10,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:10,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:10,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:10,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:10,101 INFO L87 Difference]: Start difference. First operand 1672 states and 2465 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, (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) [2023-11-12 00:48:13,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:48:17,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:48:17,261 INFO L93 Difference]: Finished difference Result 1678 states and 2470 transitions. [2023-11-12 00:48:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 00:48:17,262 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, (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 54 [2023-11-12 00:48:17,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:48:17,283 INFO L225 Difference]: With dead ends: 1678 [2023-11-12 00:48:17,283 INFO L226 Difference]: Without dead ends: 1676 [2023-11-12 00:48:17,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:48:17,295 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 2429 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:48:17,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2439 Valid, 6752 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-12 00:48:17,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2023-11-12 00:48:17,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2023-11-12 00:48:17,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 895 states have (on average 1.2324022346368715) internal successors, (1103), 927 states have internal predecessors, (1103), 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) [2023-11-12 00:48:17,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2468 transitions. [2023-11-12 00:48:17,488 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2468 transitions. Word has length 54 [2023-11-12 00:48:17,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:48:17,489 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2468 transitions. [2023-11-12 00:48:17,489 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, (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) [2023-11-12 00:48:17,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2468 transitions. [2023-11-12 00:48:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-12 00:48:17,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:48:17,491 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] [2023-11-12 00:48:17,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:48:17,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:48:17,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:48:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash -461760092, now seen corresponding path program 1 times [2023-11-12 00:48:17,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:48:17,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989482587] [2023-11-12 00:48:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:48:17,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:48:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:48:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-12 00:48:17,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:48:17,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989482587] [2023-11-12 00:48:17,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989482587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:48:17,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:48:17,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:48:17,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111251082] [2023-11-12 00:48:17,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:48:17,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:48:17,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:48:17,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:48:17,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:48:17,862 INFO L87 Difference]: Start difference. First operand 1676 states and 2468 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, (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) [2023-11-12 00:48:21,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []