./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje --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 c2d7f6c194f04de54ba5a893678a720456a663ad567a49e51faf84a68b16d812 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:05:38,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:05:38,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:05:38,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:05:38,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:05:38,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:05:38,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:05:38,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:05:38,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:05:38,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:05:38,918 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:05:38,918 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:05:38,919 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:05:38,919 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:05:38,922 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:05:38,922 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:05:38,923 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:05:38,923 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:05:38,924 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:05:38,924 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:05:38,929 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:05:38,929 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:05:38,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:05:38,931 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:05:38,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:05:38,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:05:38,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:05:38,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:05:38,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:05:38,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:05:38,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:05:38,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:05:38,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:05:38,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:05:38,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:05:38,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:05:38,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:05:38,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:05:38,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:05:38,939 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:05:38,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:05:38,941 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:05:38,941 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:05:38,941 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:05:38,942 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_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2d7f6c194f04de54ba5a893678a720456a663ad567a49e51faf84a68b16d812 [2024-11-09 07:05:39,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:05:39,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:05:39,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:05:39,287 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:05:39,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:05:39,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i Unable to find full path for "g++" [2024-11-09 07:05:41,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:05:42,693 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:05:42,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2024-11-09 07:05:42,793 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/data/94c3a81aa/97c259cc4ec4451a852c6a00d6ca2b69/FLAG551f51878 [2024-11-09 07:05:42,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/data/94c3a81aa/97c259cc4ec4451a852c6a00d6ca2b69 [2024-11-09 07:05:42,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:05:42,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:05:42,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:05:42,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:05:42,957 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:05:42,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:05:42" (1/1) ... [2024-11-09 07:05:42,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2480db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:42, skipping insertion in model container [2024-11-09 07:05:42,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:05:42" (1/1) ... [2024-11-09 07:05:43,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:05:48,004 WARN L250 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_a9667443-5a6e-4616-ad56-2ccc7faadd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[415292,415305] [2024-11-09 07:05:48,009 WARN L250 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_a9667443-5a6e-4616-ad56-2ccc7faadd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[415437,415450] [2024-11-09 07:05:48,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:05:48,108 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:05:48,317 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"); [6109] [2024-11-09 07:05:48,320 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)); [6116] [2024-11-09 07:05:48,321 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6123] [2024-11-09 07:05:48,326 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)); [6227-6228] [2024-11-09 07:05:48,327 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"); [6233-6235] [2024-11-09 07:05:48,328 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [6260-6261] [2024-11-09 07:05:48,329 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [6266-6268] [2024-11-09 07:05:48,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [6292-6293] [2024-11-09 07:05:48,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [6298-6300] [2024-11-09 07:05:48,333 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; incl %0": "+m" (v->counter)); [6335] [2024-11-09 07:05:48,340 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/linux/mm.h"), "i" (488), "i" (12UL)); [6535-6536] [2024-11-09 07:05:48,365 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/linux/netdevice.h"), "i" (502), "i" (12UL)); [6919-6920] [2024-11-09 07:05:48,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6926] [2024-11-09 07:05:48,410 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/xen-netfront.c"), "i" (317), "i" (12UL)); [7618-7619] [2024-11-09 07:05:48,411 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/xen-netfront.c"), "i" (321), "i" (12UL)); [7632-7633] [2024-11-09 07:05:48,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7656] [2024-11-09 07:05:48,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7661] [2024-11-09 07:05:48,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7663] [2024-11-09 07:05:48,417 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/xen-netfront.c"), "i" (374), "i" (12UL)); [7737-7738] [2024-11-09 07:05:48,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7745] [2024-11-09 07:05:48,420 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/xen-netfront.c"), "i" (393), "i" (12UL)); [7764-7765] [2024-11-09 07:05:48,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [7787] [2024-11-09 07:05:48,431 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/xen-netfront.c"), "i" (451), "i" (12UL)); [7868-7869] [2024-11-09 07:05:48,433 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/xen-netfront.c"), "i" (473), "i" (12UL)); [7909-7910] [2024-11-09 07:05:48,434 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/xen-netfront.c"), "i" (482), "i" (12UL)); [7924-7925] [2024-11-09 07:05:48,437 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/xen-netfront.c"), "i" (496), "i" (12UL)); [7950-7951] [2024-11-09 07:05:48,438 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/xen-netfront.c"), "i" (514), "i" (12UL)); [7977-7978] [2024-11-09 07:05:48,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("add %%gs:%P1, %0": "=r" (tcp_ptr__): "m" (this_cpu_off), "0" (np->stats)); [8093] [2024-11-09 07:05:48,449 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/xen-netfront.c"), "i" (599), "i" (12UL)); [8207-8208] [2024-11-09 07:05:48,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8259] [2024-11-09 07:05:48,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8261] [2024-11-09 07:05:48,458 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/xen-netfront.c"), "i" (678), "i" (12UL)); [8324-8325] [2024-11-09 07:05:48,467 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/xen-netfront.c"), "i" (775), "i" (12UL)); [8507-8508] [2024-11-09 07:05:48,475 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/xen-netfront.c"), "i" (855), "i" (12UL)); [8657-8658] [2024-11-09 07:05:48,477 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/xen-netfront.c"), "i" (858), "i" (12UL)); [8674-8675] [2024-11-09 07:05:48,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("add %%gs:%P1, %0": "=r" (tcp_ptr__): "m" (this_cpu_off), "0" (np->stats)); [8752] [2024-11-09 07:05:48,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8840] [2024-11-09 07:05:48,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [8955] [2024-11-09 07:05:48,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("": "=r" (__ptr): "0" (np->stats)); [9027] [2024-11-09 07:05:48,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("": "=r" (__ptr): "0" (np->stats)); [9397] [2024-11-09 07:05:48,786 WARN L250 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_a9667443-5a6e-4616-ad56-2ccc7faadd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[415292,415305] [2024-11-09 07:05:48,787 WARN L250 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_a9667443-5a6e-4616-ad56-2ccc7faadd9a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[415437,415450] [2024-11-09 07:05:48,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:05:49,181 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:05:49,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49 WrapperNode [2024-11-09 07:05:49,182 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:05:49,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:05:49,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:05:49,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:05:49,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,546 INFO L138 Inliner]: procedures = 561, calls = 2453, calls flagged for inlining = 267, calls inlined = 188, statements flattened = 4797 [2024-11-09 07:05:49,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:05:49,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:05:49,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:05:49,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:05:49,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:05:49,891 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:05:49,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:05:49,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:05:49,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (1/1) ... [2024-11-09 07:05:49,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:05:49,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:05:49,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:05:49,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9667443-5a6e-4616-ad56-2ccc7faadd9a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:05:49,975 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2024-11-09 07:05:49,975 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2024-11-09 07:05:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 07:05:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 07:05:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2024-11-09 07:05:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2024-11-09 07:05:49,976 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2024-11-09 07:05:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2024-11-09 07:05:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:05:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:05:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_scanf [2024-11-09 07:05:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_scanf [2024-11-09 07:05:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2024-11-09 07:05:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2024-11-09 07:05:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2024-11-09 07:05:49,978 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2024-11-09 07:05:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2024-11-09 07:05:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2024-11-09 07:05:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2024-11-09 07:05:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2024-11-09 07:05:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 07:05:49,979 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 07:05:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2024-11-09 07:05:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2024-11-09 07:05:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2024-11-09 07:05:49,980 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2024-11-09 07:05:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2024-11-09 07:05:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2024-11-09 07:05:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2024-11-09 07:05:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2024-11-09 07:05:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2024-11-09 07:05:49,981 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2024-11-09 07:05:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 07:05:49,982 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 07:05:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2024-11-09 07:05:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2024-11-09 07:05:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2024-11-09 07:05:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2024-11-09 07:05:49,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 07:05:49,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 07:05:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-09 07:05:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-09 07:05:49,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 07:05:49,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 07:05:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2024-11-09 07:05:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2024-11-09 07:05:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:05:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-09 07:05:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-09 07:05:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2024-11-09 07:05:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2024-11-09 07:05:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2024-11-09 07:05:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2024-11-09 07:05:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 07:05:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 07:05:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2024-11-09 07:05:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2024-11-09 07:05:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2024-11-09 07:05:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2024-11-09 07:05:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2024-11-09 07:05:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2024-11-09 07:05:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-09 07:05:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-09 07:05:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:05:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 07:05:49,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 07:05:49,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:05:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 07:05:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 07:05:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-09 07:05:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-09 07:05:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2024-11-09 07:05:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2024-11-09 07:05:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 07:05:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 07:05:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-09 07:05:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-09 07:05:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2024-11-09 07:05:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2024-11-09 07:05:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2024-11-09 07:05:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2024-11-09 07:05:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 07:05:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 07:05:49,993 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2024-11-09 07:05:49,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2024-11-09 07:05:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:05:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 07:05:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 07:05:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:05:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 07:05:49,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 07:05:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:05:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2024-11-09 07:05:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2024-11-09 07:05:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2024-11-09 07:05:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2024-11-09 07:05:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2024-11-09 07:05:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2024-11-09 07:05:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-09 07:05:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-09 07:05:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 07:05:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 07:05:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 07:05:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 07:05:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 07:05:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 07:05:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_dev_fatal [2024-11-09 07:05:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_dev_fatal [2024-11-09 07:05:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2024-11-09 07:05:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2024-11-09 07:05:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:05:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:05:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_netif_exit_20_2 [2024-11-09 07:05:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_netif_exit_20_2 [2024-11-09 07:05:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 07:05:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 07:05:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:05:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:05:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:05:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2024-11-09 07:05:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2024-11-09 07:05:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2024-11-09 07:05:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2024-11-09 07:05:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2024-11-09 07:05:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2024-11-09 07:05:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-09 07:05:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-09 07:05:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-09 07:05:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-09 07:05:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2024-11-09 07:05:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2024-11-09 07:05:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 07:05:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 07:05:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 07:05:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 07:05:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2024-11-09 07:05:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2024-11-09 07:05:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2024-11-09 07:05:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2024-11-09 07:05:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-09 07:05:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-09 07:05:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:05:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_printf [2024-11-09 07:05:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_printf [2024-11-09 07:05:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2024-11-09 07:05:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2024-11-09 07:05:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2024-11-09 07:05:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2024-11-09 07:05:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2024-11-09 07:05:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2024-11-09 07:05:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:05:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2024-11-09 07:05:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2024-11-09 07:05:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2024-11-09 07:05:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2024-11-09 07:05:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2024-11-09 07:05:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2024-11-09 07:05:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 07:05:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 07:05:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2024-11-09 07:05:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2024-11-09 07:05:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2024-11-09 07:05:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2024-11-09 07:05:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2024-11-09 07:05:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2024-11-09 07:05:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 07:05:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 07:05:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 07:05:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 07:05:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2024-11-09 07:05:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2024-11-09 07:05:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2024-11-09 07:05:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2024-11-09 07:05:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2024-11-09 07:05:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2024-11-09 07:05:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2024-11-09 07:05:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2024-11-09 07:05:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2024-11-09 07:05:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2024-11-09 07:05:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2024-11-09 07:05:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2024-11-09 07:05:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2024-11-09 07:05:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2024-11-09 07:05:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 07:05:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 07:05:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 07:05:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 07:05:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2024-11-09 07:05:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2024-11-09 07:05:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2024-11-09 07:05:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2024-11-09 07:05:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 07:05:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 07:05:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 07:05:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 07:05:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2024-11-09 07:05:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2024-11-09 07:05:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:05:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 07:05:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 07:05:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-09 07:05:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-09 07:05:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2024-11-09 07:05:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2024-11-09 07:05:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2024-11-09 07:05:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2024-11-09 07:05:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-11-09 07:05:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-11-09 07:05:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2024-11-09 07:05:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2024-11-09 07:05:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2024-11-09 07:05:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2024-11-09 07:05:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2024-11-09 07:05:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2024-11-09 07:05:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 07:05:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 07:05:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2024-11-09 07:05:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2024-11-09 07:05:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 07:05:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 07:05:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2024-11-09 07:05:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2024-11-09 07:05:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2024-11-09 07:05:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2024-11-09 07:05:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:05:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 07:05:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 07:05:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-09 07:05:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-09 07:05:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-09 07:05:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-09 07:05:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2024-11-09 07:05:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2024-11-09 07:05:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2024-11-09 07:05:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2024-11-09 07:05:51,100 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:05:51,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:05:51,447 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:06:01,032 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 07:06:02,948 INFO L? ?]: Removed 1940 outVars from TransFormulas that were not future-live. [2024-11-09 07:06:02,949 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:06:04,617 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:06:04,617 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-09 07:06:04,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:04 BoogieIcfgContainer [2024-11-09 07:06:04,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:06:04,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:06:04,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:06:04,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:06:04,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:05:42" (1/3) ... [2024-11-09 07:06:04,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3718f64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:04, skipping insertion in model container [2024-11-09 07:06:04,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:05:49" (2/3) ... [2024-11-09 07:06:04,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3718f64f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:04, skipping insertion in model container [2024-11-09 07:06:04,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:04" (3/3) ... [2024-11-09 07:06:04,631 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2024-11-09 07:06:04,655 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:06:04,656 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:06:04,833 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:04,843 INFO L333 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, 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;@7f5a3806, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:04,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:06:04,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 1353 states, 783 states have (on average 1.2618135376756066) internal successors, (988), 801 states have internal predecessors, (988), 459 states have call successors, (459), 111 states have call predecessors, (459), 110 states have return successors, (454), 453 states have call predecessors, (454), 454 states have call successors, (454) [2024-11-09 07:06:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2024-11-09 07:06:04,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:04,950 INFO L215 NwaCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:04,951 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:04,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:04,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2110315886, now seen corresponding path program 1 times [2024-11-09 07:06:04,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:04,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700926483] [2024-11-09 07:06:04,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:04,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:13,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3317 trivial. 0 not checked. [2024-11-09 07:06:13,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:13,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700926483] [2024-11-09 07:06:13,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700926483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:13,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:13,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:13,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120664691] [2024-11-09 07:06:13,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:13,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:13,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:13,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:13,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:13,348 INFO L87 Difference]: Start difference. First operand has 1353 states, 783 states have (on average 1.2618135376756066) internal successors, (988), 801 states have internal predecessors, (988), 459 states have call successors, (459), 111 states have call predecessors, (459), 110 states have return successors, (454), 453 states have call predecessors, (454), 454 states have call successors, (454) Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-09 07:06:15,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:17,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:23,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:23,010 INFO L93 Difference]: Finished difference Result 3902 states and 5516 transitions. [2024-11-09 07:06:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:23,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 397 [2024-11-09 07:06:23,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:23,064 INFO L225 Difference]: With dead ends: 3902 [2024-11-09 07:06:23,064 INFO L226 Difference]: Without dead ends: 2502 [2024-11-09 07:06:23,081 INFO L431 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 [2024-11-09 07:06:23,087 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 1741 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1741 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:23,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1741 Valid, 3242 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2024-11-09 07:06:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2024-11-09 07:06:23,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 2498. [2024-11-09 07:06:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2498 states, 1465 states have (on average 1.2621160409556313) internal successors, (1849), 1501 states have internal predecessors, (1849), 816 states have call successors, (816), 216 states have call predecessors, (816), 216 states have return successors, (816), 812 states have call predecessors, (816), 816 states have call successors, (816) [2024-11-09 07:06:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2498 states to 2498 states and 3481 transitions. [2024-11-09 07:06:23,432 INFO L78 Accepts]: Start accepts. Automaton has 2498 states and 3481 transitions. Word has length 397 [2024-11-09 07:06:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:23,439 INFO L471 AbstractCegarLoop]: Abstraction has 2498 states and 3481 transitions. [2024-11-09 07:06:23,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2024-11-09 07:06:23,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2498 states and 3481 transitions. [2024-11-09 07:06:23,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-09 07:06:23,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:23,465 INFO L215 NwaCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:23,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:06:23,466 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:23,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1382859230, now seen corresponding path program 1 times [2024-11-09 07:06:23,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:23,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900050093] [2024-11-09 07:06:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:23,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3326 trivial. 0 not checked. [2024-11-09 07:06:30,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:30,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900050093] [2024-11-09 07:06:30,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900050093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:30,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:30,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:30,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380785183] [2024-11-09 07:06:30,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:30,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:30,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:30,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:30,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:30,193 INFO L87 Difference]: Start difference. First operand 2498 states and 3481 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-09 07:06:32,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:34,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:40,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:40,856 INFO L93 Difference]: Finished difference Result 7312 states and 10168 transitions. [2024-11-09 07:06:40,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:40,858 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), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 402 [2024-11-09 07:06:40,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:40,900 INFO L225 Difference]: With dead ends: 7312 [2024-11-09 07:06:40,901 INFO L226 Difference]: Without dead ends: 4873 [2024-11-09 07:06:40,915 INFO L431 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 [2024-11-09 07:06:40,917 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 1659 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:40,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 3101 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 562 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-11-09 07:06:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4873 states. [2024-11-09 07:06:41,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4873 to 4869. [2024-11-09 07:06:41,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 2862 states have (on average 1.2620545073375262) internal successors, (3612), 2936 states have internal predecessors, (3612), 1575 states have call successors, (1575), 431 states have call predecessors, (1575), 431 states have return successors, (1575), 1565 states have call predecessors, (1575), 1575 states have call successors, (1575) [2024-11-09 07:06:41,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 6762 transitions. [2024-11-09 07:06:41,253 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 6762 transitions. Word has length 402 [2024-11-09 07:06:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:41,257 INFO L471 AbstractCegarLoop]: Abstraction has 4869 states and 6762 transitions. [2024-11-09 07:06:41,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-09 07:06:41,258 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 6762 transitions. [2024-11-09 07:06:41,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-09 07:06:41,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:41,281 INFO L215 NwaCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:41,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:06:41,282 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:41,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:41,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1348970255, now seen corresponding path program 1 times [2024-11-09 07:06:41,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:41,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279724865] [2024-11-09 07:06:41,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:41,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:47,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3326 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3326 trivial. 0 not checked. [2024-11-09 07:06:47,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:47,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279724865] [2024-11-09 07:06:47,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279724865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:47,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:47,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:47,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053652720] [2024-11-09 07:06:47,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:47,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:47,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:47,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:47,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:47,579 INFO L87 Difference]: Start difference. First operand 4869 states and 6762 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-09 07:06:49,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:51,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:58,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:58,560 INFO L93 Difference]: Finished difference Result 14359 states and 19911 transitions. [2024-11-09 07:06:58,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:58,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 401 [2024-11-09 07:06:58,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:58,641 INFO L225 Difference]: With dead ends: 14359 [2024-11-09 07:06:58,642 INFO L226 Difference]: Without dead ends: 9549 [2024-11-09 07:06:58,668 INFO L431 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 [2024-11-09 07:06:58,669 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 1660 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:58,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 3145 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 568 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-09 07:06:58,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9549 states. [2024-11-09 07:06:59,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9549 to 9545. [2024-11-09 07:06:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9545 states, 5620 states have (on average 1.2604982206405695) internal successors, (7084), 5770 states have internal predecessors, (7084), 3065 states have call successors, (3065), 859 states have call predecessors, (3065), 859 states have return successors, (3065), 3043 states have call predecessors, (3065), 3065 states have call successors, (3065) [2024-11-09 07:06:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9545 states to 9545 states and 13214 transitions. [2024-11-09 07:06:59,399 INFO L78 Accepts]: Start accepts. Automaton has 9545 states and 13214 transitions. Word has length 401 [2024-11-09 07:06:59,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:59,401 INFO L471 AbstractCegarLoop]: Abstraction has 9545 states and 13214 transitions. [2024-11-09 07:06:59,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-09 07:06:59,402 INFO L276 IsEmpty]: Start isEmpty. Operand 9545 states and 13214 transitions. [2024-11-09 07:06:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-09 07:06:59,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:59,435 INFO L215 NwaCegarLoop]: trace histogram [31, 29, 29, 29, 29, 29, 29, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:59,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:06:59,436 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:59,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:59,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1649724607, now seen corresponding path program 1 times [2024-11-09 07:06:59,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:59,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501895312] [2024-11-09 07:06:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:59,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:05,947 INFO L134 CoverageAnalysis]: Checked inductivity of 3401 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3398 trivial. 0 not checked. [2024-11-09 07:07:05,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501895312] [2024-11-09 07:07:05,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501895312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:05,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:05,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:07:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96929427] [2024-11-09 07:07:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:05,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:05,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:07:05,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:05,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:05,952 INFO L87 Difference]: Start difference. First operand 9545 states and 13214 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2024-11-09 07:07:08,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:10,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:15,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:15,919 INFO L93 Difference]: Finished difference Result 20205 states and 27893 transitions. [2024-11-09 07:07:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:15,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 417 [2024-11-09 07:07:15,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:16,003 INFO L225 Difference]: With dead ends: 20205 [2024-11-09 07:07:16,003 INFO L226 Difference]: Without dead ends: 10719 [2024-11-09 07:07:16,040 INFO L431 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 [2024-11-09 07:07:16,041 INFO L432 NwaCegarLoop]: 1662 mSDtfsCounter, 1518 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 3168 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:16,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 3168 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 569 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2024-11-09 07:07:16,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10719 states. [2024-11-09 07:07:16,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10719 to 10717. [2024-11-09 07:07:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10717 states, 6310 states have (on average 1.2573692551505546) internal successors, (7934), 6477 states have internal predecessors, (7934), 3414 states have call successors, (3414), 992 states have call predecessors, (3414), 992 states have return successors, (3414), 3391 states have call predecessors, (3414), 3414 states have call successors, (3414) [2024-11-09 07:07:16,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10717 states to 10717 states and 14762 transitions. [2024-11-09 07:07:16,783 INFO L78 Accepts]: Start accepts. Automaton has 10717 states and 14762 transitions. Word has length 417 [2024-11-09 07:07:16,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:07:16,784 INFO L471 AbstractCegarLoop]: Abstraction has 10717 states and 14762 transitions. [2024-11-09 07:07:16,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2024-11-09 07:07:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 10717 states and 14762 transitions. [2024-11-09 07:07:16,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-11-09 07:07:16,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:16,821 INFO L215 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:16,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:07:16,822 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:07:16,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:16,823 INFO L85 PathProgramCache]: Analyzing trace with hash -312312865, now seen corresponding path program 1 times [2024-11-09 07:07:16,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:07:16,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319925365] [2024-11-09 07:07:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:16,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:22,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3553 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3546 trivial. 0 not checked. [2024-11-09 07:07:22,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:22,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319925365] [2024-11-09 07:07:22,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319925365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:22,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:22,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:07:22,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144545956] [2024-11-09 07:07:22,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:22,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:22,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:07:22,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:22,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:22,426 INFO L87 Difference]: Start difference. First operand 10717 states and 14762 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-09 07:07:24,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:26,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:33,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:33,336 INFO L93 Difference]: Finished difference Result 24985 states and 34414 transitions. [2024-11-09 07:07:33,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:33,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 445 [2024-11-09 07:07:33,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:33,431 INFO L225 Difference]: With dead ends: 24985 [2024-11-09 07:07:33,431 INFO L226 Difference]: Without dead ends: 15411 [2024-11-09 07:07:33,470 INFO L431 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 [2024-11-09 07:07:33,470 INFO L432 NwaCegarLoop]: 2726 mSDtfsCounter, 1656 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 4249 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:33,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 4249 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 775 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-09 07:07:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15411 states. [2024-11-09 07:07:34,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15411 to 15407. [2024-11-09 07:07:34,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15407 states, 9069 states have (on average 1.2571397066931305) internal successors, (11401), 9312 states have internal predecessors, (11401), 4902 states have call successors, (4902), 1435 states have call predecessors, (4902), 1435 states have return successors, (4902), 4867 states have call predecessors, (4902), 4902 states have call successors, (4902) [2024-11-09 07:07:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15407 states to 15407 states and 21205 transitions. [2024-11-09 07:07:34,415 INFO L78 Accepts]: Start accepts. Automaton has 15407 states and 21205 transitions. Word has length 445 [2024-11-09 07:07:34,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:07:34,416 INFO L471 AbstractCegarLoop]: Abstraction has 15407 states and 21205 transitions. [2024-11-09 07:07:34,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-09 07:07:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 15407 states and 21205 transitions. [2024-11-09 07:07:34,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2024-11-09 07:07:34,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:34,460 INFO L215 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 7, 7, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:34,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:07:34,460 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:07:34,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:34,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1458719823, now seen corresponding path program 1 times [2024-11-09 07:07:34,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:07:34,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635759966] [2024-11-09 07:07:34,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:34,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:38,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:39,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3571 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3564 trivial. 0 not checked. [2024-11-09 07:07:39,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:39,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635759966] [2024-11-09 07:07:39,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635759966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:39,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:39,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:07:39,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953695286] [2024-11-09 07:07:39,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:39,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:39,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:07:39,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:39,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:39,241 INFO L87 Difference]: Start difference. First operand 15407 states and 21205 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 07:07:41,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:43,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:50,217 INFO L93 Difference]: Finished difference Result 36687 states and 50492 transitions. [2024-11-09 07:07:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:50,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 450 [2024-11-09 07:07:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:50,368 INFO L225 Difference]: With dead ends: 36687 [2024-11-09 07:07:50,368 INFO L226 Difference]: Without dead ends: 22423 [2024-11-09 07:07:50,433 INFO L431 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 [2024-11-09 07:07:50,434 INFO L432 NwaCegarLoop]: 2722 mSDtfsCounter, 1659 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 4245 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:50,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 4245 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 775 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2024-11-09 07:07:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22423 states. [2024-11-09 07:07:51,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22423 to 22419. [2024-11-09 07:07:51,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22419 states, 13196 states have (on average 1.256896029099727) internal successors, (16586), 13553 states have internal predecessors, (16586), 7123 states have call successors, (7123), 2099 states have call predecessors, (7123), 2099 states have return successors, (7123), 7070 states have call predecessors, (7123), 7123 states have call successors, (7123) [2024-11-09 07:07:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22419 states to 22419 states and 30832 transitions. [2024-11-09 07:07:52,046 INFO L78 Accepts]: Start accepts. Automaton has 22419 states and 30832 transitions. Word has length 450 [2024-11-09 07:07:52,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:07:52,048 INFO L471 AbstractCegarLoop]: Abstraction has 22419 states and 30832 transitions. [2024-11-09 07:07:52,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 07:07:52,048 INFO L276 IsEmpty]: Start isEmpty. Operand 22419 states and 30832 transitions. [2024-11-09 07:07:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-09 07:07:52,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:52,096 INFO L215 NwaCegarLoop]: trace histogram [33, 29, 29, 29, 29, 29, 29, 7, 7, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:52,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:07:52,097 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:07:52,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1513640228, now seen corresponding path program 1 times [2024-11-09 07:07:52,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:07:52,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355857584] [2024-11-09 07:07:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:52,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 3571 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3564 trivial. 0 not checked. [2024-11-09 07:07:57,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:57,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355857584] [2024-11-09 07:07:57,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355857584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:57,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:57,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:07:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426340783] [2024-11-09 07:07:57,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:57,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:57,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:07:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:57,413 INFO L87 Difference]: Start difference. First operand 22419 states and 30832 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 07:07:59,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:01,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:09,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:09,149 INFO L93 Difference]: Finished difference Result 54157 states and 74477 transitions. [2024-11-09 07:08:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:08:09,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 449 [2024-11-09 07:08:09,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:09,365 INFO L225 Difference]: With dead ends: 54157 [2024-11-09 07:08:09,365 INFO L226 Difference]: Without dead ends: 32881 [2024-11-09 07:08:09,455 INFO L431 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 [2024-11-09 07:08:09,456 INFO L432 NwaCegarLoop]: 2727 mSDtfsCounter, 1660 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 4250 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:09,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 4250 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 775 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2024-11-09 07:08:09,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32881 states. [2024-11-09 07:08:11,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32881 to 32877. [2024-11-09 07:08:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32877 states, 19351 states have (on average 1.2564725337191875) internal successors, (24314), 19879 states have internal predecessors, (24314), 10432 states have call successors, (10432), 3093 states have call predecessors, (10432), 3093 states have return successors, (10432), 10352 states have call predecessors, (10432), 10432 states have call successors, (10432) [2024-11-09 07:08:12,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32877 states to 32877 states and 45178 transitions. [2024-11-09 07:08:12,342 INFO L78 Accepts]: Start accepts. Automaton has 32877 states and 45178 transitions. Word has length 449 [2024-11-09 07:08:12,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:12,343 INFO L471 AbstractCegarLoop]: Abstraction has 32877 states and 45178 transitions. [2024-11-09 07:08:12,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 07:08:12,344 INFO L276 IsEmpty]: Start isEmpty. Operand 32877 states and 45178 transitions. [2024-11-09 07:08:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-09 07:08:12,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:12,389 INFO L215 NwaCegarLoop]: trace histogram [33, 30, 30, 30, 30, 30, 30, 6, 6, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:12,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:08:12,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:08:12,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:12,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1621754365, now seen corresponding path program 1 times [2024-11-09 07:08:12,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:12,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830232878] [2024-11-09 07:08:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:12,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:17,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:18,818 INFO L134 CoverageAnalysis]: Checked inductivity of 3731 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3731 trivial. 0 not checked. [2024-11-09 07:08:18,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:18,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830232878] [2024-11-09 07:08:18,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830232878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:18,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:18,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:08:18,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799468089] [2024-11-09 07:08:18,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:18,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:08:18,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:18,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:08:18,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:08:18,824 INFO L87 Difference]: Start difference. First operand 32877 states and 45178 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-09 07:08:20,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:23,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:29,735 INFO L93 Difference]: Finished difference Result 78727 states and 107920 transitions. [2024-11-09 07:08:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:08:29,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 454 [2024-11-09 07:08:29,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:30,024 INFO L225 Difference]: With dead ends: 78727 [2024-11-09 07:08:30,024 INFO L226 Difference]: Without dead ends: 45909 [2024-11-09 07:08:30,137 INFO L431 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 [2024-11-09 07:08:30,138 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 838 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:30,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 3092 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 579 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2024-11-09 07:08:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45909 states. [2024-11-09 07:08:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45909 to 45880. [2024-11-09 07:08:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45880 states, 27235 states have (on average 1.251477877730861) internal successors, (34084), 27928 states have internal predecessors, (34084), 14219 states have call successors, (14219), 4425 states have call predecessors, (14219), 4425 states have return successors, (14219), 14061 states have call predecessors, (14219), 14219 states have call successors, (14219) [2024-11-09 07:08:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45880 states to 45880 states and 62522 transitions. [2024-11-09 07:08:33,607 INFO L78 Accepts]: Start accepts. Automaton has 45880 states and 62522 transitions. Word has length 454 [2024-11-09 07:08:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:33,609 INFO L471 AbstractCegarLoop]: Abstraction has 45880 states and 62522 transitions. [2024-11-09 07:08:33,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2024-11-09 07:08:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 45880 states and 62522 transitions. [2024-11-09 07:08:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-09 07:08:33,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:33,686 INFO L215 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:33,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:08:33,686 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:08:33,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1846391354, now seen corresponding path program 1 times [2024-11-09 07:08:33,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:33,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162490202] [2024-11-09 07:08:33,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:33,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:08:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:08:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3709 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3709 trivial. 0 not checked. [2024-11-09 07:08:41,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:08:41,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162490202] [2024-11-09 07:08:41,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162490202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:08:41,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:08:41,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:08:41,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158590773] [2024-11-09 07:08:41,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:08:41,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:08:41,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:08:41,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:08:41,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:08:41,824 INFO L87 Difference]: Start difference. First operand 45880 states and 62522 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-09 07:08:43,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:46,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:08:52,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:08:52,763 INFO L93 Difference]: Finished difference Result 91157 states and 124201 transitions. [2024-11-09 07:08:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:08:52,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 468 [2024-11-09 07:08:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:08:53,033 INFO L225 Difference]: With dead ends: 91157 [2024-11-09 07:08:53,034 INFO L226 Difference]: Without dead ends: 45652 [2024-11-09 07:08:53,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:08:53,185 INFO L432 NwaCegarLoop]: 1535 mSDtfsCounter, 1733 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 3070 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:08:53,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 3070 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 539 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2024-11-09 07:08:53,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45652 states. [2024-11-09 07:08:56,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45652 to 45652. [2024-11-09 07:08:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45652 states, 27109 states have (on average 1.2510974215205282) internal successors, (33916), 27802 states have internal predecessors, (33916), 14129 states have call successors, (14129), 4413 states have call predecessors, (14129), 4413 states have return successors, (14129), 13971 states have call predecessors, (14129), 14129 states have call successors, (14129) [2024-11-09 07:08:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45652 states to 45652 states and 62174 transitions. [2024-11-09 07:08:56,612 INFO L78 Accepts]: Start accepts. Automaton has 45652 states and 62174 transitions. Word has length 468 [2024-11-09 07:08:56,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:08:56,614 INFO L471 AbstractCegarLoop]: Abstraction has 45652 states and 62174 transitions. [2024-11-09 07:08:56,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2024-11-09 07:08:56,614 INFO L276 IsEmpty]: Start isEmpty. Operand 45652 states and 62174 transitions. [2024-11-09 07:08:56,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-11-09 07:08:56,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:08:56,679 INFO L215 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:08:56,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:08:56,680 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:08:56,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:08:56,680 INFO L85 PathProgramCache]: Analyzing trace with hash -327289366, now seen corresponding path program 1 times [2024-11-09 07:08:56,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:08:56,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306217232] [2024-11-09 07:08:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:08:56,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:02,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3709 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3687 trivial. 0 not checked. [2024-11-09 07:09:02,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:02,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306217232] [2024-11-09 07:09:02,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306217232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:02,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:02,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:02,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578487281] [2024-11-09 07:09:02,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:02,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:02,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:02,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:02,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:02,421 INFO L87 Difference]: Start difference. First operand 45652 states and 62174 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 07:09:04,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:06,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:08,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:26,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:26,569 INFO L93 Difference]: Finished difference Result 105880 states and 144156 transitions. [2024-11-09 07:09:26,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:09:26,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 468 [2024-11-09 07:09:26,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:27,225 INFO L225 Difference]: With dead ends: 105880 [2024-11-09 07:09:27,225 INFO L226 Difference]: Without dead ends: 60603 [2024-11-09 07:09:27,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:27,372 INFO L432 NwaCegarLoop]: 2937 mSDtfsCounter, 1680 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1680 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:27,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1680 Valid, 5086 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1856 Invalid, 3 Unknown, 0 Unchecked, 21.6s Time] [2024-11-09 07:09:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60603 states. [2024-11-09 07:09:30,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60603 to 60597. [2024-11-09 07:09:30,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60597 states, 35979 states have (on average 1.2501181244614914) internal successors, (44978), 36902 states have internal predecessors, (44978), 18711 states have call successors, (18711), 5906 states have call predecessors, (18711), 5906 states have return successors, (18711), 18499 states have call predecessors, (18711), 18711 states have call successors, (18711) [2024-11-09 07:09:30,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60597 states to 60597 states and 82400 transitions. [2024-11-09 07:09:30,380 INFO L78 Accepts]: Start accepts. Automaton has 60597 states and 82400 transitions. Word has length 468 [2024-11-09 07:09:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:30,381 INFO L471 AbstractCegarLoop]: Abstraction has 60597 states and 82400 transitions. [2024-11-09 07:09:30,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-11-09 07:09:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 60597 states and 82400 transitions. [2024-11-09 07:09:30,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-09 07:09:30,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:30,447 INFO L215 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:30,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:09:30,447 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:30,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:30,448 INFO L85 PathProgramCache]: Analyzing trace with hash -81055420, now seen corresponding path program 1 times [2024-11-09 07:09:30,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:30,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42820607] [2024-11-09 07:09:30,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:30,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3728 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3705 trivial. 0 not checked. [2024-11-09 07:09:36,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:36,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42820607] [2024-11-09 07:09:36,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42820607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:36,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:36,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:09:36,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459901181] [2024-11-09 07:09:36,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:36,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:09:36,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:36,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:09:36,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:09:36,107 INFO L87 Difference]: Start difference. First operand 60597 states and 82400 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-09 07:09:38,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:40,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:42,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:00,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:10:00,720 INFO L93 Difference]: Finished difference Result 140633 states and 191176 transitions. [2024-11-09 07:10:00,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:00,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 473 [2024-11-09 07:10:00,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:10:01,413 INFO L225 Difference]: With dead ends: 140633 [2024-11-09 07:10:01,414 INFO L226 Difference]: Without dead ends: 80411 [2024-11-09 07:10:01,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:01,593 INFO L432 NwaCegarLoop]: 2924 mSDtfsCounter, 1657 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 5068 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:10:01,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 5068 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1837 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2024-11-09 07:10:01,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80411 states. [2024-11-09 07:10:06,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80411 to 80405. [2024-11-09 07:10:06,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80405 states, 47749 states have (on average 1.2492408217973152) internal successors, (59650), 48978 states have internal predecessors, (59650), 24757 states have call successors, (24757), 7898 states have call predecessors, (24757), 7898 states have return successors, (24757), 24473 states have call predecessors, (24757), 24757 states have call successors, (24757) [2024-11-09 07:10:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80405 states to 80405 states and 109164 transitions. [2024-11-09 07:10:06,613 INFO L78 Accepts]: Start accepts. Automaton has 80405 states and 109164 transitions. Word has length 473 [2024-11-09 07:10:06,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:10:06,614 INFO L471 AbstractCegarLoop]: Abstraction has 80405 states and 109164 transitions. [2024-11-09 07:10:06,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-09 07:10:06,614 INFO L276 IsEmpty]: Start isEmpty. Operand 80405 states and 109164 transitions. [2024-11-09 07:10:06,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-11-09 07:10:06,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:06,678 INFO L215 NwaCegarLoop]: trace histogram [35, 29, 29, 29, 29, 29, 29, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:06,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 07:10:06,678 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:10:06,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:06,679 INFO L85 PathProgramCache]: Analyzing trace with hash -2101867040, now seen corresponding path program 1 times [2024-11-09 07:10:06,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:06,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697775367] [2024-11-09 07:10:06,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:06,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3729 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3705 trivial. 0 not checked. [2024-11-09 07:10:12,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:10:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697775367] [2024-11-09 07:10:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697775367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:12,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:12,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:10:12,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757392690] [2024-11-09 07:10:12,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:12,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:10:12,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:10:12,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:10:12,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:12,797 INFO L87 Difference]: Start difference. First operand 80405 states and 109164 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-09 07:10:14,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:17,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:19,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:10:40,216 INFO L93 Difference]: Finished difference Result 186753 states and 253487 transitions. [2024-11-09 07:10:40,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:10:40,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 475 [2024-11-09 07:10:40,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:10:40,833 INFO L225 Difference]: With dead ends: 186753 [2024-11-09 07:10:40,834 INFO L226 Difference]: Without dead ends: 106723 [2024-11-09 07:10:41,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:10:41,064 INFO L432 NwaCegarLoop]: 2944 mSDtfsCounter, 1679 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 18 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1679 SdHoareTripleChecker+Valid, 5096 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:10:41,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1679 Valid, 5096 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1855 Invalid, 3 Unknown, 0 Unchecked, 22.0s Time] [2024-11-09 07:10:41,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106723 states. [2024-11-09 07:10:47,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106723 to 106717. [2024-11-09 07:10:47,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106717 states, 63389 states have (on average 1.2483711684992664) internal successors, (79133), 65025 states have internal predecessors, (79133), 32769 states have call successors, (32769), 10558 states have call predecessors, (32769), 10558 states have return successors, (32769), 32389 states have call predecessors, (32769), 32769 states have call successors, (32769) [2024-11-09 07:10:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106717 states to 106717 states and 144671 transitions. [2024-11-09 07:10:48,484 INFO L78 Accepts]: Start accepts. Automaton has 106717 states and 144671 transitions. Word has length 475 [2024-11-09 07:10:48,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:10:48,485 INFO L471 AbstractCegarLoop]: Abstraction has 106717 states and 144671 transitions. [2024-11-09 07:10:48,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-11-09 07:10:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 106717 states and 144671 transitions. [2024-11-09 07:10:48,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2024-11-09 07:10:48,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:48,547 INFO L215 NwaCegarLoop]: trace histogram [36, 30, 30, 30, 30, 30, 30, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:48,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:10:48,548 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:10:48,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:48,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1253188136, now seen corresponding path program 1 times [2024-11-09 07:10:48,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:48,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103638203] [2024-11-09 07:10:48,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:48,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms