./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-dec-tulip-winbond-840.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire --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 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:29,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:29,865 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:33:29,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:29,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:29,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:29,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:29,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:29,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:29,927 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:29,928 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:29,928 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:29,929 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:29,931 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:29,931 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:29,931 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:29,932 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:29,932 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:29,932 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:29,933 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:29,933 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:29,934 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:29,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:29,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:29,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:29,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:29,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:29,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:29,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:29,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:29,940 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:29,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:29,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:29,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:29,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:29,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:29,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:29,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:29,942 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:29,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:29,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:29,943 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:29,944 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:29,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:29,944 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_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3760bd11965082d9ea48923d727f263a9d5646ba9eaff63a7884fbc3852defe0 [2023-11-23 20:33:30,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:30,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:30,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:30,290 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:30,291 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:30,292 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-23 20:33:33,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:34,127 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:34,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-23 20:33:34,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/data/1c50244ce/5dbe41af6fa7453796a04893c3838cf7/FLAG76325fbe5 [2023-11-23 20:33:34,210 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/data/1c50244ce/5dbe41af6fa7453796a04893c3838cf7 [2023-11-23 20:33:34,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:34,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:34,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:34,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:34,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:34,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4abc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:34, skipping insertion in model container [2023-11-23 20:33:34,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:34" (1/1) ... [2023-11-23 20:33:34,387 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:37,633 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_0407ca15-91df-4d60-91d9-087cf1f36e03/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2023-11-23 20:33:37,637 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_0407ca15-91df-4d60-91d9-087cf1f36e03/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2023-11-23 20:33:37,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:37,762 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:37,908 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"); [5260] [2023-11-23 20:33:37,911 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)); [5267] [2023-11-23 20:33:37,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5274] [2023-11-23 20:33:37,913 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)); [5315-5316] [2023-11-23 20:33:37,914 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"); [5321-5323] [2023-11-23 20:33:37,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5548-5549] [2023-11-23 20:33:37,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5582-5583] [2023-11-23 20:33:37,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [5619-5620] [2023-11-23 20:33:37,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5656-5657] [2023-11-23 20:33:37,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6063] [2023-11-23 20:33:37,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6066] [2023-11-23 20:33:37,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6069] [2023-11-23 20:33:37,945 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6072] [2023-11-23 20:33:37,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [6103] [2023-11-23 20:33:37,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6106] [2023-11-23 20:33:37,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6109] [2023-11-23 20:33:37,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6112] [2023-11-23 20:33:37,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [6143] [2023-11-23 20:33:37,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6146] [2023-11-23 20:33:37,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6149] [2023-11-23 20:33:37,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6152] [2023-11-23 20:33:37,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [6183] [2023-11-23 20:33:37,956 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6186] [2023-11-23 20:33:37,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6189] [2023-11-23 20:33:37,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6192] [2023-11-23 20:33:38,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7482] [2023-11-23 20:33:38,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7484] [2023-11-23 20:33:38,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7491] [2023-11-23 20:33:38,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7626] [2023-11-23 20:33:38,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8003] [2023-11-23 20:33:38,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8442] [2023-11-23 20:33:38,092 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 *)"drivers/net/ethernet/dec/tulip/winbond-840.c"), "i" (1594), "i" (12UL)); [8524-8525] [2023-11-23 20:33:38,093 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 *)"drivers/net/ethernet/dec/tulip/winbond-840.c"), "i" (1594), "i" (12UL)); [8535-8536] [2023-11-23 20:33:38,156 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_0407ca15-91df-4d60-91d9-087cf1f36e03/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[328915,328928] [2023-11-23 20:33:38,157 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_0407ca15-91df-4d60-91d9-087cf1f36e03/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i[329060,329073] [2023-11-23 20:33:38,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:38,410 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:38,410 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:33:38,418 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:38,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38 WrapperNode [2023-11-23 20:33:38,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:38,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:38,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:38,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:38,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,537 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,869 INFO L138 Inliner]: procedures = 434, calls = 2074, calls flagged for inlining = 219, calls inlined = 204, statements flattened = 5545 [2023-11-23 20:33:38,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:38,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:38,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:38,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:38,882 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:38,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:39,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:39,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:39,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:39,160 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (1/1) ... [2023-11-23 20:33:39,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:39,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:39,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:39,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 20:33:39,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 20:33:39,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:33:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:33:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-23 20:33:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-23 20:33:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-23 20:33:39,240 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-23 20:33:39,240 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 20:33:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 20:33:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:33:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:33:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure w840_remove1 [2023-11-23 20:33:39,241 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_remove1 [2023-11-23 20:33:39,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_88 [2023-11-23 20:33:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_88 [2023-11-23 20:33:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-23 20:33:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-23 20:33:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:33:39,242 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:33:39,242 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 20:33:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 20:33:39,243 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 20:33:39,243 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 20:33:39,244 INFO L130 BoogieDeclarations]: Found specification of procedure update_link [2023-11-23 20:33:39,244 INFO L138 BoogieDeclarations]: Found implementation of procedure update_link [2023-11-23 20:33:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-23 20:33:39,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-23 20:33:39,245 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 20:33:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 20:33:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:33:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:33:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 20:33:39,246 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 20:33:39,246 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 20:33:39,247 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 20:33:39,247 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 20:33:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 20:33:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:33:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:33:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-23 20:33:39,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-23 20:33:39,248 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 20:33:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 20:33:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-23 20:33:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-23 20:33:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:33:39,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-23 20:33:39,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-23 20:33:39,250 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-23 20:33:39,250 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-23 20:33:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:33:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:33:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 20:33:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 20:33:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:33:39,251 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:33:39,251 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:33:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:33:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:33:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:33:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:33:39,252 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:33:39,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:33:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-23 20:33:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-23 20:33:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:33:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:33:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure init_rxtx_rings [2023-11-23 20:33:39,253 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rxtx_rings [2023-11-23 20:33:39,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 20:33:39,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 20:33:39,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:33:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:33:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 20:33:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 20:33:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 20:33:39,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 20:33:39,255 INFO L130 BoogieDeclarations]: Found specification of procedure tx_timeout [2023-11-23 20:33:39,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_timeout [2023-11-23 20:33:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:33:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 20:33:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 20:33:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 20:33:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 20:33:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2023-11-23 20:33:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2023-11-23 20:33:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:33:39,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:33:39,258 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:33:39,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:33:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:33:39,259 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:33:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:33:39,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:33:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-23 20:33:39,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-23 20:33:39,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-23 20:33:39,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-23 20:33:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 20:33:39,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 20:33:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:33:39,262 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:33:39,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 20:33:39,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 20:33:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 20:33:39,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 20:33:39,263 INFO L130 BoogieDeclarations]: Found specification of procedure update_csr6 [2023-11-23 20:33:39,264 INFO L138 BoogieDeclarations]: Found implementation of procedure update_csr6 [2023-11-23 20:33:39,264 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 20:33:39,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 20:33:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure w840_resume [2023-11-23 20:33:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure w840_resume [2023-11-23 20:33:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 20:33:39,268 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 20:33:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:39,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:39,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:33:39,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:33:39,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:33:39,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:33:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-23 20:33:39,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-23 20:33:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-23 20:33:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-23 20:33:39,274 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-23 20:33:39,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 20:33:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 20:33:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-23 20:33:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-23 20:33:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 20:33:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 20:33:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:33:39,275 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:33:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-23 20:33:39,276 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-23 20:33:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 20:33:39,276 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 20:33:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 20:33:39,276 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 20:33:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:33:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 20:33:39,277 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 20:33:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:33:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 20:33:39,277 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 20:33:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_87 [2023-11-23 20:33:39,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_87 [2023-11-23 20:33:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:33:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:33:39,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:33:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 20:33:39,278 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 20:33:39,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-23 20:33:39,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-23 20:33:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:33:39,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:33:39,279 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2023-11-23 20:33:39,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2023-11-23 20:33:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-23 20:33:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-23 20:33:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 20:33:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 20:33:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 20:33:39,280 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 20:33:39,280 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 20:33:39,281 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 20:33:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 20:33:39,281 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 20:33:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:33:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:33:39,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:33:39,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_95 [2023-11-23 20:33:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_95 [2023-11-23 20:33:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2023-11-23 20:33:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2023-11-23 20:33:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-23 20:33:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-23 20:33:39,282 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-11-23 20:33:39,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-11-23 20:33:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-23 20:33:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-23 20:33:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:33:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:33:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 20:33:39,283 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 20:33:39,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 20:33:39,284 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 20:33:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure free_rxtx_rings [2023-11-23 20:33:39,284 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rxtx_rings [2023-11-23 20:33:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:39,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:33:39,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:33:40,166 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:40,170 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:40,672 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:33:44,232 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 20:33:44,418 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:47,055 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:47,055 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-23 20:33:47,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:47 BoogieIcfgContainer [2023-11-23 20:33:47,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:47,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:47,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:47,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:47,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:34" (1/3) ... [2023-11-23 20:33:47,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ee588b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:47, skipping insertion in model container [2023-11-23 20:33:47,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:38" (2/3) ... [2023-11-23 20:33:47,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ee588b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:47, skipping insertion in model container [2023-11-23 20:33:47,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:47" (3/3) ... [2023-11-23 20:33:47,069 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-winbond-840.cil.i [2023-11-23 20:33:47,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:47,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:47,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:47,197 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;@61fffac6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:47,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 1325 states, 757 states have (on average 1.2879788639365919) internal successors, (975), 779 states have internal predecessors, (975), 480 states have call successors, (480), 88 states have call predecessors, (480), 87 states have return successors, (475), 471 states have call predecessors, (475), 475 states have call successors, (475) [2023-11-23 20:33:47,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-23 20:33:47,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:47,253 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2023-11-23 20:33:47,253 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:47,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:47,260 INFO L85 PathProgramCache]: Analyzing trace with hash -481241284, now seen corresponding path program 1 times [2023-11-23 20:33:47,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:47,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746311062] [2023-11-23 20:33:47,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:47,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:48,507 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2023-11-23 20:33:48,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:48,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746311062] [2023-11-23 20:33:48,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746311062] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:48,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:48,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:48,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875026413] [2023-11-23 20:33:48,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:48,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:48,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:48,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:48,571 INFO L87 Difference]: Start difference. First operand has 1325 states, 757 states have (on average 1.2879788639365919) internal successors, (975), 779 states have internal predecessors, (975), 480 states have call successors, (480), 88 states have call predecessors, (480), 87 states have return successors, (475), 471 states have call predecessors, (475), 475 states have call successors, (475) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-23 20:33:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:50,544 INFO L93 Difference]: Finished difference Result 3676 states and 5367 transitions. [2023-11-23 20:33:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:50,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2023-11-23 20:33:50,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:50,588 INFO L225 Difference]: With dead ends: 3676 [2023-11-23 20:33:50,588 INFO L226 Difference]: Without dead ends: 2314 [2023-11-23 20:33:50,603 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 [2023-11-23 20:33:50,607 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 1553 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 3376 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:50,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 3376 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-23 20:33:50,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2023-11-23 20:33:50,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 2310. [2023-11-23 20:33:50,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1326 states have (on average 1.2737556561085972) internal successors, (1689), 1363 states have internal predecessors, (1689), 816 states have call successors, (816), 168 states have call predecessors, (816), 167 states have return successors, (821), 804 states have call predecessors, (821), 816 states have call successors, (821) [2023-11-23 20:33:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3326 transitions. [2023-11-23 20:33:50,922 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3326 transitions. Word has length 139 [2023-11-23 20:33:50,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:50,924 INFO L495 AbstractCegarLoop]: Abstraction has 2310 states and 3326 transitions. [2023-11-23 20:33:50,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-23 20:33:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3326 transitions. [2023-11-23 20:33:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-23 20:33:50,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:50,950 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 8, 8, 8, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:50,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:33:50,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:50,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:50,955 INFO L85 PathProgramCache]: Analyzing trace with hash 497666637, now seen corresponding path program 1 times [2023-11-23 20:33:50,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:50,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135209435] [2023-11-23 20:33:50,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:50,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:51,584 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-23 20:33:51,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:51,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135209435] [2023-11-23 20:33:51,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135209435] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:51,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:51,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:51,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487320401] [2023-11-23 20:33:51,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:51,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:51,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:51,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:51,590 INFO L87 Difference]: Start difference. First operand 2310 states and 3326 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 20:33:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:53,784 INFO L93 Difference]: Finished difference Result 6033 states and 8651 transitions. [2023-11-23 20:33:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:53,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159 [2023-11-23 20:33:53,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:53,817 INFO L225 Difference]: With dead ends: 6033 [2023-11-23 20:33:53,817 INFO L226 Difference]: Without dead ends: 3740 [2023-11-23 20:33:53,830 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 [2023-11-23 20:33:53,836 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 1158 mSDsluCounter, 1577 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 3536 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:53,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1158 Valid, 3536 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-23 20:33:53,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2023-11-23 20:33:54,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3736. [2023-11-23 20:33:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 2186 states have (on average 1.2753888380603842) internal successors, (2788), 2242 states have internal predecessors, (2788), 1262 states have call successors, (1262), 288 states have call predecessors, (1262), 287 states have return successors, (1267), 1248 states have call predecessors, (1267), 1262 states have call successors, (1267) [2023-11-23 20:33:54,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 5317 transitions. [2023-11-23 20:33:54,099 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 5317 transitions. Word has length 159 [2023-11-23 20:33:54,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:54,100 INFO L495 AbstractCegarLoop]: Abstraction has 3736 states and 5317 transitions. [2023-11-23 20:33:54,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-11-23 20:33:54,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 5317 transitions. [2023-11-23 20:33:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-23 20:33:54,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:54,111 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:54,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:33:54,112 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:54,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:54,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1988574677, now seen corresponding path program 1 times [2023-11-23 20:33:54,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:54,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088866828] [2023-11-23 20:33:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:54,539 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2023-11-23 20:33:54,539 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:54,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088866828] [2023-11-23 20:33:54,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088866828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:54,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:54,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:54,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718441889] [2023-11-23 20:33:54,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:54,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:54,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:54,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:54,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:54,544 INFO L87 Difference]: Start difference. First operand 3736 states and 5317 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 20:33:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:33:57,291 INFO L93 Difference]: Finished difference Result 10212 states and 14462 transitions. [2023-11-23 20:33:57,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:33:57,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 193 [2023-11-23 20:33:57,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:33:57,349 INFO L225 Difference]: With dead ends: 10212 [2023-11-23 20:33:57,349 INFO L226 Difference]: Without dead ends: 6493 [2023-11-23 20:33:57,369 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 [2023-11-23 20:33:57,371 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 1603 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:33:57,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 3191 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 20:33:57,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2023-11-23 20:33:57,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 6488. [2023-11-23 20:33:57,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6488 states, 3783 states have (on average 1.260639703938673) internal successors, (4769), 3889 states have internal predecessors, (4769), 2182 states have call successors, (2182), 524 states have call predecessors, (2182), 522 states have return successors, (2195), 2151 states have call predecessors, (2195), 2182 states have call successors, (2195) [2023-11-23 20:33:57,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6488 states to 6488 states and 9146 transitions. [2023-11-23 20:33:57,960 INFO L78 Accepts]: Start accepts. Automaton has 6488 states and 9146 transitions. Word has length 193 [2023-11-23 20:33:57,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:33:57,963 INFO L495 AbstractCegarLoop]: Abstraction has 6488 states and 9146 transitions. [2023-11-23 20:33:57,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 20:33:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 6488 states and 9146 transitions. [2023-11-23 20:33:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-11-23 20:33:57,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:57,975 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 8, 8, 8, 8, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:57,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:33:57,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:57,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:57,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1001801485, now seen corresponding path program 1 times [2023-11-23 20:33:57,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:57,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288003912] [2023-11-23 20:33:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:33:58,563 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2023-11-23 20:33:58,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:33:58,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288003912] [2023-11-23 20:33:58,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288003912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:33:58,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:33:58,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:33:58,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655381794] [2023-11-23 20:33:58,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:33:58,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:33:58,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:33:58,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:33:58,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:33:58,568 INFO L87 Difference]: Start difference. First operand 6488 states and 9146 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 20:34:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:01,079 INFO L93 Difference]: Finished difference Result 15174 states and 21368 transitions. [2023-11-23 20:34:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:01,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 206 [2023-11-23 20:34:01,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:01,147 INFO L225 Difference]: With dead ends: 15174 [2023-11-23 20:34:01,147 INFO L226 Difference]: Without dead ends: 8703 [2023-11-23 20:34:01,173 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 [2023-11-23 20:34:01,174 INFO L413 NwaCegarLoop]: 2582 mSDtfsCounter, 1168 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:01,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 4151 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 20:34:01,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8703 states. [2023-11-23 20:34:01,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8703 to 8697. [2023-11-23 20:34:01,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8697 states, 5121 states have (on average 1.2608865455965632) internal successors, (6457), 5260 states have internal predecessors, (6457), 2856 states have call successors, (2856), 721 states have call predecessors, (2856), 719 states have return successors, (2869), 2821 states have call predecessors, (2869), 2856 states have call successors, (2869) [2023-11-23 20:34:01,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8697 states to 8697 states and 12182 transitions. [2023-11-23 20:34:01,784 INFO L78 Accepts]: Start accepts. Automaton has 8697 states and 12182 transitions. Word has length 206 [2023-11-23 20:34:01,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:01,786 INFO L495 AbstractCegarLoop]: Abstraction has 8697 states and 12182 transitions. [2023-11-23 20:34:01,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 20:34:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 8697 states and 12182 transitions. [2023-11-23 20:34:01,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-23 20:34:01,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:01,798 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:01,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:34:01,798 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:01,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:01,799 INFO L85 PathProgramCache]: Analyzing trace with hash 783367495, now seen corresponding path program 1 times [2023-11-23 20:34:01,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:01,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409887838] [2023-11-23 20:34:01,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:01,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:01,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 20:34:02,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:02,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409887838] [2023-11-23 20:34:02,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409887838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:02,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:02,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:34:02,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641699061] [2023-11-23 20:34:02,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:02,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:34:02,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:34:02,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:34:02,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:34:02,375 INFO L87 Difference]: Start difference. First operand 8697 states and 12182 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 20:34:04,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:04,091 INFO L93 Difference]: Finished difference Result 17449 states and 24509 transitions. [2023-11-23 20:34:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:34:04,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 268 [2023-11-23 20:34:04,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:04,152 INFO L225 Difference]: With dead ends: 17449 [2023-11-23 20:34:04,152 INFO L226 Difference]: Without dead ends: 8769 [2023-11-23 20:34:04,187 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 [2023-11-23 20:34:04,188 INFO L413 NwaCegarLoop]: 1610 mSDtfsCounter, 4 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:04,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3216 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 20:34:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8769 states. [2023-11-23 20:34:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8769 to 8721. [2023-11-23 20:34:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8721 states, 5145 states have (on average 1.2596695821185617) internal successors, (6481), 5284 states have internal predecessors, (6481), 2856 states have call successors, (2856), 721 states have call predecessors, (2856), 719 states have return successors, (2869), 2821 states have call predecessors, (2869), 2856 states have call successors, (2869) [2023-11-23 20:34:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8721 states to 8721 states and 12206 transitions. [2023-11-23 20:34:04,687 INFO L78 Accepts]: Start accepts. Automaton has 8721 states and 12206 transitions. Word has length 268 [2023-11-23 20:34:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:04,688 INFO L495 AbstractCegarLoop]: Abstraction has 8721 states and 12206 transitions. [2023-11-23 20:34:04,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-11-23 20:34:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8721 states and 12206 transitions. [2023-11-23 20:34:04,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-11-23 20:34:04,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:04,698 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:04,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:34:04,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:04,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash -302431982, now seen corresponding path program 1 times [2023-11-23 20:34:04,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:34:04,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470877240] [2023-11-23 20:34:04,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:04,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:34:04,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:05,305 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 20:34:05,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:34:05,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470877240] [2023-11-23 20:34:05,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470877240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 20:34:05,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427749155] [2023-11-23 20:34:05,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:05,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 20:34:05,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:05,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 20:34:05,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0407ca15-91df-4d60-91d9-087cf1f36e03/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 20:34:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:06,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 3434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 20:34:06,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:06,799 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 20:34:06,799 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 20:34:06,991 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2023-11-23 20:34:06,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427749155] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 20:34:06,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1700780298] [2023-11-23 20:34:07,022 INFO L159 IcfgInterpreter]: Started Sifa with 147 locations of interest [2023-11-23 20:34:07,022 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 20:34:07,026 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 20:34:07,031 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 20:34:07,032 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs