Trace number 310866

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, and are wall clock time (not CPU 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 SAT 2007 (with assertions)UNSAT 31.4012 31.4328

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
MD5SUM6c6574c6e53b7d1ef3d1cc6ac9e5dec3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark9.15561
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  1295                                                 |
0.00/0.00	c |  Number of clauses:    4026                                                 |
0.00/0.00	c |  Parsing time:         0.01         s                                       |
0.00/0.01	c ============================[ Search Statistics ]==============================
0.00/0.01	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |    1085     3702    11081 |     1234        0    nan |  0.000 % |
0.00/0.01	c |       100 |    1085     3702    11081 |     1357      100     22 |  0.000 % |
0.00/0.02	c |       251 |    1085     3702    11081 |     1493      251     19 |  0.000 % |
0.00/0.03	c |       476 |    1085     3702    11081 |     1642      476     17 |  0.000 % |
0.00/0.05	c |       813 |    1085     3702    11081 |     1806      813     17 |  0.000 % |
0.00/0.09	c |      1320 |    1085     3702    11081 |     1987     1320     18 |  0.000 % |
0.10/0.14	c |      2079 |    1085     3702    11081 |     2186     1058     16 |  0.000 % |
0.20/0.22	c |      3219 |    1085     3702    11081 |     2404     2198     19 |  0.000 % |
0.31/0.36	c |      4928 |    1085     3702    11081 |     2645     1423     17 |  0.000 % |
0.51/0.56	c |      7491 |    1085     3702    11081 |     2909     2635     16 |  0.000 % |
0.82/0.87	c |     11337 |    1085     3702    11081 |     3200     2002     15 |  0.001 % |
1.33/1.36	c |     17103 |    1085     3702    11081 |     3520     2873     17 |  0.000 % |
2.04/2.10	c |     25752 |    1085     3702    11081 |     3872     2499     16 |  0.000 % |
3.17/3.26	c |     38726 |    1085     3702    11081 |     4260     3609     17 |  0.000 % |
4.91/4.97	c |     58187 |    1085     3702    11081 |     4686     3512     18 |  0.000 % |
7.67/7.72	c |     87379 |    1085     3702    11081 |     5154     3954     18 |  0.000 % |
11.97/12.00	c |    131169 |    1082     3691    11053 |     5670     4469     17 |  0.232 % |
18.63/18.67	c |    196853 |    1082     3691    11053 |     6237     3862     17 |  0.232 % |
28.75/28.83	c |    295379 |    1071     3624    10849 |     6860     3684     15 |  1.081 % |
31.31/31.42	c ===============================================================================
31.31/31.42	c restarts              : 19
31.31/31.42	c conflicts             : 320217         (10200 /sec)
31.31/31.42	c decisions             : 389866         (1.74 % random) (12418 /sec)
31.31/31.42	c propagations          : 47920881       (1526375 /sec)
31.31/31.42	c conflict literals     : 5747183        (39.00 % deleted)
31.31/31.42	c Memory used           : 3.50 MB
31.31/31.42	c CPU time              : 31.3952 s
31.31/31.42	c 
31.31/31.43	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node44/watcher-310866-1172562456 -o ROOT/results/node44/solver-310866-1172562456 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310866-1172562456/minisat /tmp/evaluation/310866-1172562456/instance-310866-1172562456.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.96 0.98 0.99 3/64 27353
/proc/meminfo: memFree=1907840/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=2024 CPUtime=0
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 189 0 0 0 0 0 0 0 18 0 1 0 276201738 2072576 173 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134707275 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 506 174 58 138 0 365 0

[startup+0.107208 s]
/proc/loadavg: 0.96 0.98 0.99 3/64 27353
/proc/meminfo: memFree=1907840/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=2252 CPUtime=0.1
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 244 0 0 0 10 0 0 0 18 0 1 0 276201738 2306048 228 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550746 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 563 228 73 138 0 422 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2252

[startup+0.515282 s]
/proc/loadavg: 0.96 0.98 0.99 3/64 27353
/proc/meminfo: memFree=1907840/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=2384 CPUtime=0.51
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 282 0 0 0 51 0 0 0 22 0 1 0 276201738 2441216 266 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134552930 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 596 266 73 138 0 455 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2384

[startup+1.33543 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1907000/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=2516 CPUtime=1.33
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 315 0 0 0 133 0 0 0 25 0 1 0 276201738 2576384 299 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134552086 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 629 299 73 138 0 488 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2516

[startup+2.97173 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1906744/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=2648 CPUtime=2.97
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 359 0 0 0 297 0 0 0 25 0 1 0 276201738 2711552 343 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 662 343 73 138 0 521 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2648

[startup+6.25133 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1906432/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=2912 CPUtime=6.24
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 411 0 0 0 624 0 0 0 25 0 1 0 276201738 2981888 395 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550573 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 728 395 73 138 0 587 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2912

[startup+12.7055 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1906112/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=3180 CPUtime=12.69
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 469 0 0 0 1269 0 0 0 25 0 1 0 276201738 3256320 453 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550605 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 795 453 73 138 0 654 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3180

[startup+25.5129 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1905920/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=3448 CPUtime=25.48
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 546 0 0 0 2548 0 0 0 25 0 1 0 276201738 3530752 530 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550642 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 862 530 73 138 0 721 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3448

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

[startup+26.231 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1905920/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=3448 CPUtime=26.19
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 547 0 0 0 2619 0 0 0 25 0 1 0 276201738 3530752 531 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550582 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 862 531 73 138 0 721 0
Current children cumulated CPU time (s) 26.19
Current children cumulated vsize (KiB) 3448

[startup+29.5086 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1905856/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=3448 CPUtime=29.47
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 564 0 0 0 2947 0 0 0 25 0 1 0 276201738 3530752 548 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134555840 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 862 548 73 138 0 721 0
Current children cumulated CPU time (s) 29.47
Current children cumulated vsize (KiB) 3448

[startup+30.3267 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1905856/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=3580 CPUtime=30.29
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 567 0 0 0 3029 0 0 0 25 0 1 0 276201738 3665920 551 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134552663 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 895 551 73 138 0 754 0
Current children cumulated CPU time (s) 30.29
Current children cumulated vsize (KiB) 3580

[startup+31.1469 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1905856/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=3580 CPUtime=31.11
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 570 0 0 0 3111 0 0 0 25 0 1 0 276201738 3665920 554 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134550573 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 895 554 73 138 0 754 0
Current children cumulated CPU time (s) 31.11
Current children cumulated vsize (KiB) 3580

[startup+31.3509 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 27354
/proc/meminfo: memFree=1905856/2055920 swapFree=4183252/4192956
[pid=27353] ppid=27351 vsize=3580 CPUtime=31.31
/proc/27353/stat : 27353 (minisat) R 27351 27353 26041 0 -1 4194304 570 0 0 0 3131 0 0 0 25 0 1 0 276201738 3665920 554 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134551025 0 0 4096 3 0 0 0 17 0 0 0
/proc/27353/statm: 895 554 73 138 0 754 0
Current children cumulated CPU time (s) 31.31
Current children cumulated vsize (KiB) 3580

Child status: 0
Real time (s): 31.4328
CPU time (s): 31.4012
CPU user time (s): 31.3972
CPU system time (s): 0.003999
CPU usage (%): 99.8997
Max. virtual memory (cumulated for all children) (KiB): 3580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.3972
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 576
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= 8
involuntary context switches= 108

runsolver used 0.028995 second user time and 0.087986 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Tue Feb 27 07:47:36 UTC 2007

IDJOB= 310866
IDBENCH= 20298
IDSOLVER= 109
FILE ID= node44/310866-1172562456

PBS_JOBID= 3971860

Free space on /tmp= 66554 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S846304296-04-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310866-1172562456/minisat /tmp/evaluation/310866-1172562456/instance-310866-1172562456.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-310866-1172562456 -o ROOT/results/node44/solver-310866-1172562456 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310866-1172562456/minisat /tmp/evaluation/310866-1172562456/instance-310866-1172562456.cnf            

META MD5SUM SOLVER= 120abd248b069e44985635f055606c5a
MD5SUM BENCH=  6c6574c6e53b7d1ef3d1cc6ac9e5dec3

RANDOM SEED= 877973004

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.261
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		: 3000.261
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:       1908312 kB
Buffers:         19456 kB
Cached:          81472 kB
SwapCached:       3996 kB
Active:          35524 kB
Inactive:        75448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1908312 kB
SwapTotal:     4192956 kB
SwapFree:      4183252 kB
Dirty:            1056 kB
Writeback:           0 kB
Mapped:          15380 kB
Slab:            22624 kB
Committed_AS:   562464 kB
PageTables:       1396 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= 66554 MiB

End job on node44 on Tue Feb 27 07:48:08 UTC 2007