Trace number 1773347

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
MXC 2009-03-10UNSAT 21.9357 21.9425

General information on the benchmark

Nameschup-l2s-abp4-1-k31.cnf
MD5SUM2ec4066bd8381455b1990aa40b382ff0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.4758
Satisfiable
(Un)Satisfiability was proved
Number of variables14809
Number of clauses48483
Sum of the clauses size123522
Maximum clause length33
Minimum clause length1
Number of clauses of size 136
Number of clauses of size 224983
Number of clauses of size 322191
Number of clauses of size 4589
Number of clauses of size 5403
Number of clauses of size over 5281

Solver Data 

21.89/21.93	c starting MXC with:
21.89/21.93	c cnf_path = HOME/instance-1773347-1241299389.cnf
21.89/21.93	c restart_strategy = auto
21.89/21.93	c sign_strategy = cached
21.89/21.93	c use_preprocessing = -1
21.89/21.93	c output_implicant = 1
21.89/21.93	c timeout_seconds = 0
21.89/21.93	c running SatELite... done
21.89/21.93	c 9582 vars eliminated
21.89/21.93	c received 608 units and 22144 clauses from SatELite
21.89/21.93	c 10189 assignments made, starting to guess now
21.89/21.93	c ===================================[MXC]=====================================
21.89/21.93	c | Conflicts |                Clause Statistics                   |   Vars   |
21.89/21.93	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
21.89/21.93	c =============================================================================
21.89/21.93	c |         0 |       0    6840    15304        0        0     nan |    14809 |
21.89/21.93	c |       100 |       0    6822    15300       87     1050     6.1 |     4619 |
21.89/21.93	c |       210 |       0    6825    15300      194     1105     7.9 |     4619 |
21.89/21.93	c |       441 |       0    6830    15300      420     1220    11.4 |     4619 |
21.89/21.93	c |       805 |       0    6845    15267      766     1402    10.2 |     4614 |
21.89/21.93	c |      1315 |       0    6822    15182     1224     1657     9.2 |     4577 |
21.89/21.93	c |      1986 |       0    6846    15182     1871     1993     9.4 |     4577 |
21.89/21.93	c |      2834 |       0    6849    15178     1623     2417     9.8 |     4576 |
21.89/21.93	c |      3876 |       0    6875    15178     2639     2938    11.0 |     4576 |
21.89/21.93	c |      5132 |       0    6889    15178     2259     3566    18.3 |     4576 |
21.89/21.93	c |      6623 |       0    6939    15178     3700     4311    16.8 |     4576 |
21.89/21.93	c |      8373 |       0    6975    15178     2961     5186    11.9 |     4576 |
21.89/21.93	c |     10408 |       0    6997    15178     4974     6204    14.5 |     4576 |
21.89/21.93	c |     12756 |       0    7009    15178     7310     7378    16.8 |     4576 |
21.89/21.93	c |     15449 |       0    7040    15178     6253     8724    18.0 |     4576 |
21.89/21.93	c |     18521 |       0    7057    15178     9308    10260    20.9 |     4576 |
21.89/21.93	c |     22010 |       0    7073    15171     7172    12005    21.8 |     4575 |
21.89/21.93	c |     25958 |       0    7094    15171    11099    13979    23.6 |     4575 |
21.89/21.93	c |     30411 |       0    7109    15166    15535    16205    24.9 |     4574 |
21.89/21.93	c |     35419 |       0    7127    15166    12087    18709    22.5 |     4574 |
21.89/21.93	c |     41038 |       0    7138    15166    17695    21519    23.7 |     4574 |
21.89/21.93	c |     47329 |       0    7148    15166    23976    24664    24.0 |     4574 |
21.89/21.93	c |     54360 |       0    7155    15166    18330    26558    21.1 |     4574 |
21.89/21.93	c |     62205 |       0    7179    15166    26151    27451    22.2 |     4574 |
21.89/21.93	c |     70945 |       0    7190    15166    21081    28329    21.3 |     4574 |
21.89/21.93	c |     80669 |       0    7612    13985     9137    29215    15.0 |     4484 |
21.89/21.93	c |     91476 |       0    7655    13971    19898    29564    19.0 |     4482 |
21.89/21.93	c |    100170 |       0    7682    13971    28558    30230    19.6 |     3930 |
21.89/21.93	c ----- stats for thread 0 -----
21.89/21.93	c restarts: 309
21.89/21.93	c decisions: 192917
21.89/21.93	c propagations: 31685233
21.89/21.93	c conflicts: 100170
21.89/21.93	c 21.937s elapsed
21.89/21.93	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1773347-1241299389/watcher-1773347-1241299389 -o /tmp/evaluation-result-1773347-1241299389/solver-1773347-1241299389 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1773347-1241299389.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.14 2.10 2/64 25977
/proc/meminfo: memFree=1165448/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=3356 CPUtime=0
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 664 0 0 0 0 0 0 0 18 0 1 0 157972378 3436544 650 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 839 653 53 166 0 670 0

[startup+0.0798931 s]
/proc/loadavg: 1.00 1.14 2.10 2/64 25977
/proc/meminfo: memFree=1165448/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=7340 CPUtime=0.06
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 1780 0 0 0 6 0 0 0 18 0 1 0 157972378 7516160 1566 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 1835 1567 56 166 0 1666 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 7340

[startup+0.102894 s]
/proc/loadavg: 1.00 1.14 2.10 2/64 25977
/proc/meminfo: memFree=1165448/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=8120 CPUtime=0.09
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 1960 0 0 0 8 1 0 0 18 0 1 0 157972378 8314880 1746 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 2030 1746 56 166 0 1861 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8120

[startup+0.302927 s]
/proc/loadavg: 1.00 1.14 2.10 2/64 25977
/proc/meminfo: memFree=1165448/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=9872 CPUtime=0.29
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 2644 0 0 0 28 1 0 0 19 0 1 0 157972378 10108928 2229 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 2468 2231 56 166 0 2299 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9872

[startup+0.701962 s]
/proc/loadavg: 1.00 1.14 2.10 2/64 25977
/proc/meminfo: memFree=1165448/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=10980 CPUtime=0.69
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 2946 0 0 0 68 1 0 0 23 0 1 0 157972378 11243520 2531 1992294400 134512640 135192793 4294956224 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 2745 2531 73 166 0 2576 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10980

[startup+1.50105 s]
/proc/loadavg: 1.00 1.14 2.10 2/65 25978
/proc/meminfo: memFree=1155200/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=11640 CPUtime=1.49
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 3113 0 0 0 148 1 0 0 25 0 1 0 157972378 11919360 2698 1992294400 134512640 135192793 4294956224 18446744073709551615 134534006 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 2910 2698 73 166 0 2741 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 11640

[startup+3.10124 s]
/proc/loadavg: 1.00 1.14 2.09 2/65 25978
/proc/meminfo: memFree=1154112/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=13092 CPUtime=3.09
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 3471 0 0 0 307 2 0 0 25 0 1 0 157972378 13406208 3056 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 3273 3056 73 166 0 3104 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13092

[startup+6.3016 s]
/proc/loadavg: 1.00 1.14 2.09 2/65 25978
/proc/meminfo: memFree=1151560/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=14864 CPUtime=6.28
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 3896 0 0 0 626 2 0 0 25 0 1 0 157972378 15220736 3481 1992294400 134512640 135192793 4294956224 18446744073709551615 134533182 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 3716 3481 73 166 0 3547 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 14864

[startup+12.7013 s]
/proc/loadavg: 1.00 1.14 2.08 2/65 25978
/proc/meminfo: memFree=1148872/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=17600 CPUtime=12.68
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 4551 0 0 0 1265 3 0 0 25 0 1 0 157972378 18022400 4136 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 4400 4136 73 166 0 4231 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 17600

Solver just ended. Dumping a history of the last processes samples

[startup+15.9017 s]
/proc/loadavg: 1.00 1.14 2.08 2/65 25978
/proc/meminfo: memFree=1148616/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=17732 CPUtime=15.88
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 4606 0 0 0 1585 3 0 0 25 0 1 0 157972378 18157568 4191 1992294400 134512640 135192793 4294956224 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 4433 4191 73 166 0 4264 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 17732

[startup+19.1011 s]
/proc/loadavg: 1.00 1.13 2.08 2/65 25978
/proc/meminfo: memFree=1148424/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=17996 CPUtime=19.09
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 4657 0 0 0 1905 4 0 0 25 0 1 0 157972378 18427904 4242 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 4499 4242 73 166 0 4330 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 17996

[startup+20.7012 s]
/proc/loadavg: 1.00 1.13 2.08 2/65 25978
/proc/meminfo: memFree=1148360/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=18132 CPUtime=20.69
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 4688 0 0 0 2065 4 0 0 25 0 1 0 157972378 18567168 4273 1992294400 134512640 135192793 4294956224 18446744073709551615 134534170 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 4533 4273 73 166 0 4364 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 18132

[startup+21.5013 s]
/proc/loadavg: 1.00 1.13 2.08 2/65 25978
/proc/meminfo: memFree=1148296/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=18284 CPUtime=21.49
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 4709 0 0 0 2145 4 0 0 25 0 1 0 157972378 18722816 4294 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 4571 4294 73 166 0 4402 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 18284

[startup+21.9014 s]
/proc/loadavg: 1.00 1.13 2.07 2/65 25978
/proc/meminfo: memFree=1148104/2055920 swapFree=4180748/4192956
[pid=25977] ppid=25975 vsize=18432 CPUtime=21.89
/proc/25977/stat : 25977 (mxc-sat09) R 25975 25977 25886 0 -1 4194304 4737 0 0 0 2185 4 0 0 25 0 1 0 157972378 18874368 4322 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/25977/statm: 4608 4322 73 166 0 4439 0
Current children cumulated CPU time (s) 21.89
Current children cumulated vsize (KiB) 18432

Child status: 20
Real time (s): 21.9425
CPU time (s): 21.9357
CPU user time (s): 21.8917
CPU system time (s): 0.043993
CPU usage (%): 99.9689
Max. virtual memory (cumulated for all children) (KiB): 18432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.8917
system time used= 0.043993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4741
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 21

runsolver used 0.024996 second user time and 0.055991 second system time

The end

Launcher Data 

Begin job on node23 at 2009-05-02 23:23:09
IDJOB=1773347
IDBENCH=69566
IDSOLVER=613
FILE ID=node23/1773347-1241299389
PBS_JOBID= 9225185
Free space on /tmp= 66440 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT_RACE08/cnf/schup-l2s-abp4-1-k31.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773347-1241299389/watcher-1773347-1241299389 -o /tmp/evaluation-result-1773347-1241299389/solver-1773347-1241299389 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1773347-1241299389.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 2ec4066bd8381455b1990aa40b382ff0
RANDOM SEED=1482376763

node23.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.238
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1165864 kB
Buffers:         81144 kB
Cached:         705976 kB
SwapCached:       6032 kB
Active:          59124 kB
Inactive:       736344 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1165864 kB
SwapTotal:     4192956 kB
SwapFree:      4180748 kB
Dirty:            1472 kB
Writeback:           0 kB
Mapped:          14068 kB
Slab:            80644 kB
Committed_AS:   727104 kB
PageTables:       1388 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66440 MiB
End job on node23 at 2009-05-02 23:23:31