Trace number 1773342

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 15.9196 15.9242

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 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.02/0.05	c |  Number of variables:         14809                                         |
0.02/0.05	c |  Number of clauses:           47810                                         |
0.02/0.05	c |  Parse time:                   0.05 s                                       |
0.19/0.25	c |  Simplification time:          0.20 s                                       |
0.19/0.25	c |                                                                             |
0.19/0.25	c ============================[ Search Statistics ]==============================
0.19/0.25	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.25	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.25	c ===============================================================================
0.19/0.26	c |       100 |    4717    22333    68760 |     8188       99      9 |  4.052 % |
0.19/0.27	c |       250 |    4717    22333    68760 |     9007      249     10 |  4.052 % |
0.19/0.28	c |       475 |    4717    22333    68760 |     9908      474     16 |  4.052 % |
0.29/0.31	c |       812 |    4711    22264    68583 |    10899      810     13 |  4.092 % |
0.29/0.34	c |      1318 |    4711    22264    68583 |    11989     1316     14 |  4.092 % |
0.29/0.40	c |      2077 |    4711    22264    68583 |    13188     2075     14 |  4.092 % |
0.39/0.47	c |      3216 |    4673    22099    68200 |    14506     3212     14 |  4.349 % |
0.59/0.60	c |      4924 |    4673    22099    68200 |    15957     4920     14 |  4.349 % |
0.79/0.85	c |      7486 |    4673    22099    68200 |    17553     7482     19 |  4.349 % |
1.18/1.26	c |     11330 |    4673    22099    68200 |    19308    11326     20 |  4.349 % |
1.89/1.92	c |     17096 |    4673    22099    68200 |    21239    17092     24 |  4.349 % |
3.09/3.19	c |     25745 |    4673    22099    68200 |    23363    14511     22 |  4.349 % |
5.40/5.48	c |     38719 |    4673    22099    68200 |    25699    15451     26 |  4.349 % |
9.08/9.15	c |     58180 |    4672    22068    68138 |    28269    21675     26 |  4.355 % |
15.49/15.51	c |     87372 |    4672    22068    68138 |    31096    21836     24 |  4.356 % |
15.89/15.92	c ===============================================================================
15.89/15.92	c restarts              : 254
15.89/15.92	c conflicts             : 89252          (5622 /sec)
15.89/15.92	c decisions             : 166256         (10472 /sec)
15.89/15.92	c propagations          : 32679693       (2058487 /sec)
15.89/15.92	c conflict literals     : 2688277        (38.87 % deleted)
15.89/15.92	c Memory used           : 17.24 MB
15.89/15.92	c CPU time              : 15.8756 s
15.89/15.92	c 
15.89/15.92	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-1773342-1241210538/watcher-1773342-1241210538 -o /tmp/evaluation-result-1773342-1241210538/solver-1773342-1241210538 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1773342-1241210538.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: 1.04 1.02 1.00 3/64 24209
/proc/meminfo: memFree=1730168/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=7608 CPUtime=0
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 364 0 0 0 0 0 0 0 18 0 1 0 149087700 7790592 348 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 1902 349 63 219 0 1680 0

[startup+0.029895 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 24209
/proc/meminfo: memFree=1730168/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=9724 CPUtime=0.02
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 989 0 0 0 2 0 0 0 18 0 1 0 149087700 9957376 973 1992294400 4194304 5092341 548682068848 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 2431 976 63 219 0 2209 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 9724

[startup+0.101902 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 24209
/proc/meminfo: memFree=1730168/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=12136 CPUtime=0.09
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 1732 0 0 0 9 0 0 0 18 0 1 0 149087700 12427264 1675 1992294400 4194304 5092341 548682068848 18446744073709551615 4203193 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 3034 1675 88 219 0 2812 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12136

[startup+0.301925 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 24209
/proc/meminfo: memFree=1730168/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=12024 CPUtime=0.29
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 2093 0 0 0 29 0 0 0 19 0 1 0 149087700 12312576 1502 1992294400 4194304 5092341 548682068848 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 3006 1502 102 219 0 2784 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12024

[startup+0.701969 s]
/proc/loadavg: 1.04 1.02 1.00 3/64 24209
/proc/meminfo: memFree=1730168/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=12024 CPUtime=0.69
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 2183 0 0 0 69 0 0 0 22 0 1 0 149087700 12312576 1592 1992294400 4194304 5092341 548682068848 18446744073709551615 4241447 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 3006 1592 103 219 0 2784 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12024

[startup+1.50106 s]
/proc/loadavg: 1.04 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1723760/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=12024 CPUtime=1.49
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 2393 0 0 0 148 1 0 0 25 0 1 0 149087700 12312576 1802 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 3006 1802 103 219 0 2784 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12024

[startup+3.10124 s]
/proc/loadavg: 1.04 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1722480/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=12148 CPUtime=3.09
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 3115 0 0 0 308 1 0 0 25 0 1 0 149087700 12439552 1840 1992294400 4194304 5092341 548682068848 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 3037 1840 103 219 0 2815 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12148

[startup+6.30159 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1719280/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=17624 CPUtime=6.29
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 4197 0 0 0 627 2 0 0 25 0 1 0 149087700 18046976 2922 1992294400 4194304 5092341 548682068848 18446744073709551615 4250871 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 4406 2922 103 219 0 4184 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17624

[startup+12.7013 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1711408/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=28004 CPUtime=12.68
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 6086 0 0 0 1265 3 0 0 25 0 1 0 149087700 28676096 4811 1992294400 4194304 5092341 548682068848 18446744073709551615 4241475 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 7001 4811 103 219 0 6779 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 28004

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

[startup+14.3055 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1717360/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=17652 CPUtime=14.29
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 6277 0 0 0 1425 4 0 0 25 0 1 0 149087700 18075648 3170 1992294400 4194304 5092341 548682068848 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 4413 3170 103 219 0 4191 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 17652

[startup+15.1016 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1717360/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=17652 CPUtime=15.09
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 6277 0 0 0 1505 4 0 0 25 0 1 0 149087700 18075648 3170 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 4413 3170 103 219 0 4191 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 17652

[startup+15.5016 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1717360/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=17652 CPUtime=15.49
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 6277 0 0 0 1545 4 0 0 25 0 1 0 149087700 18075648 3170 1992294400 4194304 5092341 548682068848 18446744073709551615 4240692 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 4413 3170 103 219 0 4191 0
Current children cumulated CPU time (s) 15.49
Current children cumulated vsize (KiB) 17652

[startup+15.9017 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24210
/proc/meminfo: memFree=1717360/2055920 swapFree=4179008/4192956
[pid=24209] ppid=24207 vsize=17652 CPUtime=15.89
/proc/24209/stat : 24209 (minisat) R 24207 24209 24061 0 -1 4194304 6277 0 0 0 1585 4 0 0 25 0 1 0 149087700 18075648 3170 1992294400 4194304 5092341 548682068848 18446744073709551615 4248386 0 0 4096 3 0 0 0 17 1 0 0
/proc/24209/statm: 4413 3170 103 219 0 4191 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 17652

Child status: 20
Real time (s): 15.9242
CPU time (s): 15.9196
CPU user time (s): 15.8756
CPU system time (s): 0.043993
CPU usage (%): 99.9712
Max. virtual memory (cumulated for all children) (KiB): 28004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.8756
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= 6287
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= 37

runsolver used 0.014997 second user time and 0.039993 second system time

The end

Launcher Data 

Begin job on node5 at 2009-05-01 22:42:18
IDJOB=1773342
IDBENCH=69566
IDSOLVER=608
FILE ID=node5/1773342-1241210538
PBS_JOBID= 9224709
Free space on /tmp= 66520 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/schup-l2s-abp4-1-k31.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773342-1241210538/watcher-1773342-1241210538 -o /tmp/evaluation-result-1773342-1241210538/solver-1773342-1241210538 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1773342-1241210538.cnf

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

MD5SUM BENCH= 2ec4066bd8381455b1990aa40b382ff0
RANDOM SEED=1799403024

node5.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		: 3000.212
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		: 3000.212
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:       1730648 kB
Buffers:         60368 kB
Cached:         199444 kB
SwapCached:       7700 kB
Active:          29324 kB
Inactive:       239708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1730648 kB
SwapTotal:     4192956 kB
SwapFree:      4179008 kB
Dirty:            1828 kB
Writeback:           0 kB
Mapped:          13500 kB
Slab:            42260 kB
Committed_AS:   683368 kB
PageTables:       1412 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= 66520 MiB
End job on node5 at 2009-05-01 22:42:34