./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.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_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/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_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/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_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/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 c26285c798d9eae93470e6619d316c691c81cc1a0579ebf111c5d2cbbd8c7126 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:22:22,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:22:22,192 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:22:22,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:22:22,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:22:22,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:22:22,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:22:22,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:22:22,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:22:22,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:22:22,257 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:22:22,258 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:22:22,259 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:22:22,260 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:22:22,261 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:22:22,261 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:22:22,261 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:22:22,262 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:22:22,262 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:22:22,263 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:22:22,263 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:22:22,264 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:22:22,265 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:22:22,265 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:22:22,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:22:22,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:22:22,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:22:22,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:22:22,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:22:22,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:22:22,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:22:22,269 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:22:22,270 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:22:22,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:22:22,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:22:22,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:22:22,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:22:22,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:22:22,286 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:22:22,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:22:22,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:22:22,287 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:22:22,288 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:22:22,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:22:22,288 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_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c26285c798d9eae93470e6619d316c691c81cc1a0579ebf111c5d2cbbd8c7126 [2023-11-24 23:22:22,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:22:22,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:22:22,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:22:22,596 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:22:22,596 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:22:22,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2023-11-24 23:22:25,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:22:26,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:22:26,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2023-11-24 23:22:26,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/data/de1fcc767/c311ed3b8f824b9dbb737e8c1d0288b7/FLAG28c52cd73 [2023-11-24 23:22:26,742 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/data/de1fcc767/c311ed3b8f824b9dbb737e8c1d0288b7 [2023-11-24 23:22:26,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:22:26,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:22:26,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:22:26,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:22:26,761 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:22:26,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:22:26" (1/1) ... [2023-11-24 23:22:26,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5828bc01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:26, skipping insertion in model container [2023-11-24 23:22:26,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:22:26" (1/1) ... [2023-11-24 23:22:26,941 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:22:30,406 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_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373388,373401] [2023-11-24 23:22:30,411 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_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373533,373546] [2023-11-24 23:22:30,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:22:30,493 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:22:30,661 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"); [6172] [2023-11-24 23:22:30,663 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)); [6179] [2023-11-24 23:22:30,663 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6186] [2023-11-24 23:22:30,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [6261-6262] [2023-11-24 23:22:30,668 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"); [6267-6269] [2023-11-24 23:22:30,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [6294-6295] [2023-11-24 23:22:30,669 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [6300-6302] [2023-11-24 23:22:30,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [6326-6327] [2023-11-24 23:22:30,670 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6332-6334] [2023-11-24 23:22:30,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [6360] [2023-11-24 23:22:30,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("661:\n\tprefetcht0 (%1)\n662:\n.pushsection .altinstructions,\"a\"\n .long 661b - .\n .long 6631f - .\n .word (1*32+31)\n .byte 662b-661b\n .byte 6641f-6631f\n.popsection\n.pushsection .discard,\"aw\",@progbits\n .byte 0xff + (6641f-6631f) - (662b-661b)\n.popsection\n.pushsection .altinstr_replacement, \"ax\"\n6631:\n\tprefetchw (%1)\n6641:\n\t.popsection": : "i" (0), "r" (x)); [6376-6377] [2023-11-24 23:22:30,672 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [6397] [2023-11-24 23:22:30,673 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; subl %1,%0": "+m" (v->counter): "ir" (i)); [6404] [2023-11-24 23:22:30,673 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; decl %0": "+m" (v->counter)); [6411] [2023-11-24 23:22:30,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6428] [2023-11-24 23:22:30,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6435] [2023-11-24 23:22:30,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (79), "i" (12UL)); [6538-6539] [2023-11-24 23:22:30,728 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (91), "i" (12UL)); [6567-6568] [2023-11-24 23:22:30,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7173] [2023-11-24 23:22:30,755 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7183] [2023-11-24 23:22:30,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7357] [2023-11-24 23:22:30,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8104] [2023-11-24 23:22:30,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8361] [2023-11-24 23:22:30,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8674] [2023-11-24 23:22:30,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8744] [2023-11-24 23:22:30,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8814] [2023-11-24 23:22:30,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8875] [2023-11-24 23:22:30,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8981] [2023-11-24 23:22:30,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [9034] [2023-11-24 23:22:30,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9177] [2023-11-24 23:22:30,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9664] [2023-11-24 23:22:30,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9685] [2023-11-24 23:22:30,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [9906] [2023-11-24 23:22:30,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10256] [2023-11-24 23:22:30,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10261] [2023-11-24 23:22:30,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10266] [2023-11-24 23:22:30,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10271] [2023-11-24 23:22:30,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10288] [2023-11-24 23:22:30,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10304] [2023-11-24 23:22:30,902 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10309] [2023-11-24 23:22:30,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10314] [2023-11-24 23:22:30,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10338] [2023-11-24 23:22:30,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10343] [2023-11-24 23:22:30,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10348] [2023-11-24 23:22:30,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10352] [2023-11-24 23:22:30,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10367] [2023-11-24 23:22:30,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10372] [2023-11-24 23:22:30,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10377] [2023-11-24 23:22:30,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10382] [2023-11-24 23:22:30,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10386] [2023-11-24 23:22:30,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10534] [2023-11-24 23:22:30,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10538] [2023-11-24 23:22:30,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10543] [2023-11-24 23:22:30,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10549] [2023-11-24 23:22:30,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10556] [2023-11-24 23:22:30,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10571] [2023-11-24 23:22:30,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [10580] [2023-11-24 23:22:31,063 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373388,373401] [2023-11-24 23:22:31,063 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373533,373546] [2023-11-24 23:22:31,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:22:31,294 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:22:31,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31 WrapperNode [2023-11-24 23:22:31,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:22:31,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:22:31,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:22:31,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:22:31,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,710 INFO L138 Inliner]: procedures = 424, calls = 2506, calls flagged for inlining = 186, calls inlined = 170, statements flattened = 6612 [2023-11-24 23:22:31,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:22:31,711 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:22:31,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:22:31,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:22:31,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:31,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:22:32,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:22:32,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:22:32,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:22:32,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (1/1) ... [2023-11-24 23:22:32,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:22:32,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:22:32,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:22:32,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70ca8f3f-9a6e-4a1a-9307-3ee07eddbaf8/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:22:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-24 23:22:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-24 23:22:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:22:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:22:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2023-11-24 23:22:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2023-11-24 23:22:32,200 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:22:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:22:32,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:22:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:22:32,200 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-24 23:22:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-24 23:22:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2023-11-24 23:22:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2023-11-24 23:22:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:22:32,202 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:22:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_start [2023-11-24 23:22:32,202 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_start [2023-11-24 23:22:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-24 23:22:32,203 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-24 23:22:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-24 23:22:32,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-24 23:22:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_jumbo_rx_ring [2023-11-24 23:22:32,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_jumbo_rx_ring [2023-11-24 23:22:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_std_rx_ring [2023-11-24 23:22:32,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_std_rx_ring [2023-11-24 23:22:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_page [2023-11-24 23:22:32,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_page [2023-11-24 23:22:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:22:32,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:22:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-24 23:22:32,206 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-24 23:22:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-24 23:22:32,206 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-24 23:22:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:22:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:22:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:22:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:22:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-24 23:22:32,207 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-24 23:22:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure ace_set_multicast_list [2023-11-24 23:22:32,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_set_multicast_list [2023-11-24 23:22:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure ace_set_txprd [2023-11-24 23:22:32,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_set_txprd [2023-11-24 23:22:32,208 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_check_ack [2023-11-24 23:22:32,208 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_check_ack [2023-11-24 23:22:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:22:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2023-11-24 23:22:32,209 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2023-11-24 23:22:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-24 23:22:32,210 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-24 23:22:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure ace_set_rxtx_parms [2023-11-24 23:22:32,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_set_rxtx_parms [2023-11-24 23:22:32,210 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:22:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:22:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom_byte [2023-11-24 23:22:32,211 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom_byte [2023-11-24 23:22:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:22:32,211 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:22:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:22:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:22:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:22:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:22:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure tx_space [2023-11-24 23:22:32,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_space [2023-11-24 23:22:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:22:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:22:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:22:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-24 23:22:32,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-24 23:22:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure set_aceaddr [2023-11-24 23:22:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_aceaddr [2023-11-24 23:22:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:22:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:22:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:22:32,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:22:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-24 23:22:32,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-24 23:22:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-24 23:22:32,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-24 23:22:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:22:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:22:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:22:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:22:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:22:32,219 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2023-11-24 23:22:32,219 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2023-11-24 23:22:32,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:22:32,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:22:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:22:32,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:22:32,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:22:32,225 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:22:32,225 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:22:32,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:22:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:22:32,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:22:32,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:22:32,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:22:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_prep [2023-11-24 23:22:32,235 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_prep [2023-11-24 23:22:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:22:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:22:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-24 23:22:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-24 23:22:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure ace_issue_cmd [2023-11-24 23:22:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_issue_cmd [2023-11-24 23:22:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:22:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:22:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:22:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:22:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-11-24 23:22:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-11-24 23:22:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-24 23:22:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-24 23:22:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-24 23:22:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-24 23:22:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:22:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:22:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-24 23:22:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-24 23:22:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_mini_rx_ring [2023-11-24 23:22:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_mini_rx_ring [2023-11-24 23:22:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:22:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:22:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:22:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:22:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-24 23:22:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-24 23:22:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2023-11-24 23:22:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2023-11-24 23:22:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-24 23:22:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-24 23:22:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_sub [2023-11-24 23:22:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_sub [2023-11-24 23:22:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-24 23:22:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-24 23:22:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:22:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:22:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:22:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:22:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-11-24 23:22:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-11-24 23:22:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-24 23:22:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-24 23:22:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure acenic_remove_one [2023-11-24 23:22:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure acenic_remove_one [2023-11-24 23:22:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:22:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:22:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:22:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure ace_init_cleanup [2023-11-24 23:22:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_init_cleanup [2023-11-24 23:22:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-24 23:22:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-24 23:22:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-24 23:22:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-24 23:22:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:22:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:22:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:22:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:22:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:22:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:22:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-24 23:22:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-24 23:22:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:22:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:22:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:22:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:22:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:22:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:22:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:22:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:22:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2023-11-24 23:22:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2023-11-24 23:22:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:22:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:22:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:22:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:22:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:22:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:22:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:22:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-24 23:22:32,250 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-24 23:22:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure ace_open [2023-11-24 23:22:32,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_open [2023-11-24 23:22:32,250 INFO L130 BoogieDeclarations]: Found specification of procedure ace_close [2023-11-24 23:22:32,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_close [2023-11-24 23:22:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:22:32,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:22:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure prefetchw [2023-11-24 23:22:32,251 INFO L138 BoogieDeclarations]: Found implementation of procedure prefetchw [2023-11-24 23:22:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure ace_map_tx_skb [2023-11-24 23:22:32,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_map_tx_skb [2023-11-24 23:22:32,251 INFO L130 BoogieDeclarations]: Found specification of procedure ace_load_tx_bd [2023-11-24 23:22:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_load_tx_bd [2023-11-24 23:22:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-24 23:22:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-24 23:22:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure ace_watchdog [2023-11-24 23:22:32,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ace_watchdog [2023-11-24 23:22:32,252 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-24 23:22:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-24 23:22:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:22:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:22:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:22:32,253 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-24 23:22:32,253 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-24 23:22:33,231 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:22:33,236 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:22:33,419 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:22:38,232 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:22:38,435 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:22:41,506 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:22:41,506 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:22:41,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:41 BoogieIcfgContainer [2023-11-24 23:22:41,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:22:41,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:22:41,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:22:41,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:22:41,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:22:26" (1/3) ... [2023-11-24 23:22:41,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc6218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:41, skipping insertion in model container [2023-11-24 23:22:41,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:22:31" (2/3) ... [2023-11-24 23:22:41,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fc6218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:41, skipping insertion in model container [2023-11-24 23:22:41,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:41" (3/3) ... [2023-11-24 23:22:41,525 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2023-11-24 23:22:41,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:22:41,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:22:41,657 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:22:41,665 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;@1b799553, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:22:41,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:22:41,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 1764 states, 1005 states have (on average 1.2855721393034827) internal successors, (1292), 1063 states have internal predecessors, (1292), 664 states have call successors, (664), 95 states have call predecessors, (664), 94 states have return successors, (659), 644 states have call predecessors, (659), 659 states have call successors, (659) [2023-11-24 23:22:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-24 23:22:41,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:41,725 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:41,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:41,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:41,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1923066192, now seen corresponding path program 1 times [2023-11-24 23:22:41,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:41,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133943429] [2023-11-24 23:22:41,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:41,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:42,703 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-11-24 23:22:42,703 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:42,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133943429] [2023-11-24 23:22:42,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133943429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:42,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:42,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:42,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264043834] [2023-11-24 23:22:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:42,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:42,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:42,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:42,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:42,765 INFO L87 Difference]: Start difference. First operand has 1764 states, 1005 states have (on average 1.2855721393034827) internal successors, (1292), 1063 states have internal predecessors, (1292), 664 states have call successors, (664), 95 states have call predecessors, (664), 94 states have return successors, (659), 644 states have call predecessors, (659), 659 states have call successors, (659) Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-24 23:22:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:45,757 INFO L93 Difference]: Finished difference Result 4984 states and 7412 transitions. [2023-11-24 23:22:45,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:45,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2023-11-24 23:22:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:45,824 INFO L225 Difference]: With dead ends: 4984 [2023-11-24 23:22:45,824 INFO L226 Difference]: Without dead ends: 3144 [2023-11-24 23:22:45,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:45,857 INFO L413 NwaCegarLoop]: 2350 mSDtfsCounter, 2238 mSDsluCounter, 2194 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:45,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 4544 Invalid, 659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-24 23:22:45,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2023-11-24 23:22:46,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3140. [2023-11-24 23:22:46,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3140 states, 1790 states have (on average 1.2748603351955308) internal successors, (2282), 1890 states have internal predecessors, (2282), 1174 states have call successors, (1174), 176 states have call predecessors, (1174), 175 states have return successors, (1175), 1145 states have call predecessors, (1175), 1174 states have call successors, (1175) [2023-11-24 23:22:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3140 states to 3140 states and 4631 transitions. [2023-11-24 23:22:46,342 INFO L78 Accepts]: Start accepts. Automaton has 3140 states and 4631 transitions. Word has length 113 [2023-11-24 23:22:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:46,343 INFO L495 AbstractCegarLoop]: Abstraction has 3140 states and 4631 transitions. [2023-11-24 23:22:46,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-24 23:22:46,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3140 states and 4631 transitions. [2023-11-24 23:22:46,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-24 23:22:46,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:46,356 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:46,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:22:46,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:46,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:46,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1176499836, now seen corresponding path program 1 times [2023-11-24 23:22:46,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:46,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134087775] [2023-11-24 23:22:46,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:46,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:46,932 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-11-24 23:22:46,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:46,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134087775] [2023-11-24 23:22:46,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134087775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:46,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:46,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:46,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972072561] [2023-11-24 23:22:46,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:46,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:46,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:46,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:46,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:46,937 INFO L87 Difference]: Start difference. First operand 3140 states and 4631 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-24 23:22:49,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:22:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:51,223 INFO L93 Difference]: Finished difference Result 9091 states and 13392 transitions. [2023-11-24 23:22:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:51,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 136 [2023-11-24 23:22:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:51,277 INFO L225 Difference]: With dead ends: 9091 [2023-11-24 23:22:51,277 INFO L226 Difference]: Without dead ends: 5964 [2023-11-24 23:22:51,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:51,298 INFO L413 NwaCegarLoop]: 2610 mSDtfsCounter, 2268 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 4814 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:51,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 4814 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-24 23:22:51,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2023-11-24 23:22:51,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 5958. [2023-11-24 23:22:51,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 3377 states have (on average 1.2668048563814036) internal successors, (4278), 3564 states have internal predecessors, (4278), 2238 states have call successors, (2238), 344 states have call predecessors, (2238), 342 states have return successors, (2253), 2176 states have call predecessors, (2253), 2238 states have call successors, (2253) [2023-11-24 23:22:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 8769 transitions. [2023-11-24 23:22:51,852 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 8769 transitions. Word has length 136 [2023-11-24 23:22:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:51,853 INFO L495 AbstractCegarLoop]: Abstraction has 5958 states and 8769 transitions. [2023-11-24 23:22:51,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-24 23:22:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 8769 transitions. [2023-11-24 23:22:51,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-11-24 23:22:51,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:51,857 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:51,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:22:51,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:51,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:51,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1168110806, now seen corresponding path program 1 times [2023-11-24 23:22:51,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:51,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691389252] [2023-11-24 23:22:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:51,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-24 23:22:52,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:52,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691389252] [2023-11-24 23:22:52,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691389252] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:52,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:52,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:52,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602547566] [2023-11-24 23:22:52,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:52,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:52,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:52,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:52,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:52,391 INFO L87 Difference]: Start difference. First operand 5958 states and 8769 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-24 23:22:56,437 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 [] [2023-11-24 23:22:56,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:56,695 INFO L93 Difference]: Finished difference Result 13531 states and 19810 transitions. [2023-11-24 23:22:56,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:56,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 146 [2023-11-24 23:22:56,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:56,760 INFO L225 Difference]: With dead ends: 13531 [2023-11-24 23:22:56,760 INFO L226 Difference]: Without dead ends: 7586 [2023-11-24 23:22:56,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:56,790 INFO L413 NwaCegarLoop]: 2815 mSDtfsCounter, 973 mSDsluCounter, 2178 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 4993 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:56,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 4993 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-24 23:22:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7586 states. [2023-11-24 23:22:57,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7586 to 7580. [2023-11-24 23:22:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7580 states, 4385 states have (on average 1.2688711516533637) internal successors, (5564), 4646 states have internal predecessors, (5564), 2708 states have call successors, (2708), 488 states have call predecessors, (2708), 486 states have return successors, (2723), 2630 states have call predecessors, (2723), 2708 states have call successors, (2723) [2023-11-24 23:22:57,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7580 states to 7580 states and 10995 transitions. [2023-11-24 23:22:57,533 INFO L78 Accepts]: Start accepts. Automaton has 7580 states and 10995 transitions. Word has length 146 [2023-11-24 23:22:57,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:57,535 INFO L495 AbstractCegarLoop]: Abstraction has 7580 states and 10995 transitions. [2023-11-24 23:22:57,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-24 23:22:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 7580 states and 10995 transitions. [2023-11-24 23:22:57,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-24 23:22:57,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:57,543 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:57,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:22:57,544 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:22:57,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:57,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2086804809, now seen corresponding path program 1 times [2023-11-24 23:22:57,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:57,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537549029] [2023-11-24 23:22:57,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:57,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-24 23:22:58,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:58,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537549029] [2023-11-24 23:22:58,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537549029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:58,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:58,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:58,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598826435] [2023-11-24 23:22:58,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:58,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:58,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:58,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:58,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:58,007 INFO L87 Difference]: Start difference. First operand 7580 states and 10995 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-24 23:23:00,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:23:01,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:23:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:23:03,128 INFO L93 Difference]: Finished difference Result 16801 states and 24295 transitions. [2023-11-24 23:23:03,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:23:03,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 189 [2023-11-24 23:23:03,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:23:03,205 INFO L225 Difference]: With dead ends: 16801 [2023-11-24 23:23:03,205 INFO L226 Difference]: Without dead ends: 9234 [2023-11-24 23:23:03,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:23:03,240 INFO L413 NwaCegarLoop]: 3027 mSDtfsCounter, 983 mSDsluCounter, 2170 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 5197 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:23:03,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 5197 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-24 23:23:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9234 states. [2023-11-24 23:23:04,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9234 to 9228. [2023-11-24 23:23:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9228 states, 5402 states have (on average 1.269714920399852) internal successors, (6859), 5737 states have internal predecessors, (6859), 3190 states have call successors, (3190), 637 states have call predecessors, (3190), 635 states have return successors, (3205), 3096 states have call predecessors, (3205), 3190 states have call successors, (3205) [2023-11-24 23:23:04,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9228 states to 9228 states and 13254 transitions. [2023-11-24 23:23:04,091 INFO L78 Accepts]: Start accepts. Automaton has 9228 states and 13254 transitions. Word has length 189 [2023-11-24 23:23:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:23:04,092 INFO L495 AbstractCegarLoop]: Abstraction has 9228 states and 13254 transitions. [2023-11-24 23:23:04,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-24 23:23:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 9228 states and 13254 transitions. [2023-11-24 23:23:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-24 23:23:04,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:23:04,101 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:23:04,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:23:04,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:23:04,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:23:04,102 INFO L85 PathProgramCache]: Analyzing trace with hash 151396873, now seen corresponding path program 1 times [2023-11-24 23:23:04,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:23:04,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890961463] [2023-11-24 23:23:04,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:23:04,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:23:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat