Trace number 1516229

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
VARSAT-random 2009-03-22SAT 8.04078 8.04357

General information on the benchmark

NameRANDOM/MEDIUM/7SAT/SATISFIABLE/60/
unif-k7-r89-v60-c5340-S178043354-076.cnf
MD5SUM1d34e3663c561a89d93a195f39097223
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.461929
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses5340
Sum of the clauses size37380
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 55340

Solver Data 

0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  60                                                   |
0.00/0.00	c |  Number of clauses:    5340                                                 |
0.00/0.01	c |  Parsing time:         0.01         s                                       |
0.00/0.01	c |  Timeout:              43200 s
0.00/0.01	c |  Random Seed:          988128029.000000
0.00/0.01	c |  Heuristic:            EMSP-G, threshold 0.750                              |
0.00/0.01	c |  Branching Rule:       default (solution-guided)                            |
0.00/0.01	c |  Learned clauses in surveys?  Using NO learned clauses.                     |
0.00/0.01	c |                                                                             |
0.09/0.13	c ============================[ Search Statistics ]==============================
0.09/0.13	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.13	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.13	c ===============================================================================
0.09/0.13	c |         0 |      60     5340    37380 |     1780        0    nan |  0.000 % |
0.09/0.16	c |       103 |      60     5340    37380 |     1958      103     23 |  0.028 % |
0.09/0.19	c |       254 |      60     5340    37380 |     2153      254     23 |  0.028 % |
0.19/0.23	c |       479 |      60     5340    37380 |     2369      479     23 |  0.028 % |
0.19/0.27	c |       817 |      60     5340    37380 |     2606      817     22 |  0.028 % |
0.29/0.32	c |      1324 |      60     5340    37380 |     2866     1324     22 |  0.028 % |
0.29/0.38	c |      2083 |      60     5340    37380 |     3153     2083     22 |  0.028 % |
0.39/0.47	c |      3223 |      60     5340    37380 |     3468     1633     21 |  0.028 % |
0.49/0.58	c |      4931 |      60     5340    37380 |     3815     3341     22 |  0.028 % |
0.69/0.75	c |      7493 |      60     5340    37380 |     4197     2059     21 |  0.028 % |
0.89/0.99	c |     11337 |      60     5340    37380 |     4616     3791     22 |  0.028 % |
1.29/1.36	c |     17103 |      60     5340    37380 |     5078     2595     21 |  0.028 % |
1.89/1.92	c |     25753 |      60     5340    37380 |     5586     3590     21 |  0.028 % |
2.69/2.74	c |     38727 |      60     5340    37380 |     6145     5337     21 |  0.028 % |
3.99/4.04	c |     58188 |      60     5340    37380 |     6759     3204     20 |  0.028 % |
5.99/6.02	c |     87381 |      60     5340    37380 |     7435     5264     21 |  0.028 % |
7.99/8.04	c ===============================================================================
7.99/8.04	c surveys--CPU time (sec)   : 0.4379         (5.45 % of total)
7.99/8.04	c surveys--attempted        : 16             (37 /sec)
7.99/8.04	c surveys--converged        : 16             (100.00 % successful)
7.99/8.04	c restarts              : 16
7.99/8.04	c conflicts             : 116071         (15275 /sec)
7.99/8.04	c decisions             : 126134         (1.73 % random) (16599 /sec)
7.99/8.04	c propagations          : 1099822        (144735 /sec)
7.99/8.04	c conflict literals     : 2462913        (12.06 % deleted)
7.99/8.04	c Memory used           : 4.91 MB
7.99/8.04	c Total CPU time (sec)      : 8.0368      
7.99/8.04	c 
7.99/8.04	s SATISFIABLE
7.99/8.04	v -1 -2 3 -4 -5 6 -7 -8 -9 -10 11 -12 13 14 -15 16 -17 -18 19 -20 -21 -22 -23 24 -25 -26 -27 28 -29 30 31 -32 33 34 35 -36 -37 -38 -39 40 -41 -42 43 -44 -45 46 47 48 -49 -50 51 52 53 54 -55 -56 57 -58 59 -60 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1516229-1238266585/watcher-1516229-1238266585 -o /tmp/evaluation-result-1516229-1238266585/solver-1516229-1238266585 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/varsat-random_static -seed=988128029 HOME/instance-1516229-1238266585.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 0.99 0.97 0.99 3/64 15998
/proc/meminfo: memFree=1341184/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=2544 CPUtime=0
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 272 0 0 0 0 0 0 0 18 0 1 0 1099321061 2605056 257 1992294400 4194304 5102416 548682068800 18446744073709551615 4491479 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 636 258 88 221 0 412 0

[startup+0.041899 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 15998
/proc/meminfo: memFree=1341184/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=3368 CPUtime=0.03
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 483 0 0 0 3 0 0 0 18 0 1 0 1099321061 3448832 468 1992294400 4194304 5102416 548682068800 18446744073709551615 4272801 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 842 468 97 221 0 618 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3368

[startup+0.101903 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 15998
/proc/meminfo: memFree=1341184/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=3512 CPUtime=0.09
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 506 0 0 0 9 0 0 0 18 0 1 0 1099321061 3596288 491 1992294400 4194304 5102416 548682068800 18446744073709551615 4272648 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 878 491 98 221 0 654 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3512

[startup+0.301925 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 15998
/proc/meminfo: memFree=1341184/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=3448 CPUtime=0.29
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 520 0 0 0 29 0 0 0 19 0 1 0 1099321061 3530752 505 1992294400 4194304 5102416 548682068800 18446744073709551615 4249520 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 862 505 112 221 0 638 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3448

[startup+0.701968 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 15998
/proc/meminfo: memFree=1341184/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=3580 CPUtime=0.69
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 553 0 0 0 69 0 0 0 22 0 1 0 1099321061 3665920 538 1992294400 4194304 5102416 548682068800 18446744073709551615 4250052 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 895 538 112 221 0 671 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3580

[startup+1.50105 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 15999
/proc/meminfo: memFree=1339256/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=3996 CPUtime=1.49
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 645 0 0 0 149 0 0 0 25 0 1 0 1099321061 4091904 630 1992294400 4194304 5102416 548682068800 18446744073709551615 4249743 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 999 630 112 221 0 775 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3996

[startup+3.10123 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 15999
/proc/meminfo: memFree=1338680/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=4452 CPUtime=3.09
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 773 0 0 0 309 0 0 0 25 0 1 0 1099321061 4558848 758 1992294400 4194304 5102416 548682068800 18446744073709551615 4249529 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 1113 758 112 221 0 889 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4452

[startup+6.30257 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 15999
/proc/meminfo: memFree=1338104/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=4884 CPUtime=6.29
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 873 0 0 0 629 0 0 0 25 0 1 0 1099321061 5001216 858 1992294400 4194304 5102416 548682068800 18446744073709551615 4249660 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 1221 858 112 221 0 997 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4884

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

[startup+7.10166 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 15999
/proc/meminfo: memFree=1337976/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=5020 CPUtime=7.09
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 890 0 0 0 709 0 0 0 25 0 1 0 1099321061 5140480 875 1992294400 4194304 5102416 548682068800 18446744073709551615 4249520 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 1255 875 112 221 0 1031 0
Current children cumulated CPU time (s) 7.09
Current children cumulated vsize (KiB) 5020

[startup+7.5017 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 15999
/proc/meminfo: memFree=1337976/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=5020 CPUtime=7.49
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 897 0 0 0 749 0 0 0 25 0 1 0 1099321061 5140480 882 1992294400 4194304 5102416 548682068800 18446744073709551615 4262335 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 1255 882 112 221 0 1031 0
Current children cumulated CPU time (s) 7.49
Current children cumulated vsize (KiB) 5020

[startup+7.90174 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 15999
/proc/meminfo: memFree=1337848/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=5020 CPUtime=7.89
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 904 0 0 0 789 0 0 0 25 0 1 0 1099321061 5140480 889 1992294400 4194304 5102416 548682068800 18446744073709551615 4250064 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 1255 889 112 221 0 1031 0
Current children cumulated CPU time (s) 7.89
Current children cumulated vsize (KiB) 5020

[startup+8.00175 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 15999
/proc/meminfo: memFree=1337848/2055920 swapFree=4178912/4192956
[pid=15998] ppid=15996 vsize=5020 CPUtime=7.99
/proc/15998/stat : 15998 (varsat-random_s) R 15996 15998 15513 0 -1 4194304 909 0 0 0 799 0 0 0 25 0 1 0 1099321061 5140480 894 1992294400 4194304 5102416 548682068800 18446744073709551615 4249655 0 0 4096 3 0 0 0 17 1 0 0
/proc/15998/statm: 1255 894 112 221 0 1031 0
Current children cumulated CPU time (s) 7.99
Current children cumulated vsize (KiB) 5020

Child status: 10
Real time (s): 8.04357
CPU time (s): 8.04078
CPU user time (s): 8.03678
CPU system time (s): 0.003999
CPU usage (%): 99.9653
Max. virtual memory (cumulated for all children) (KiB): 5020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.03678
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= 914
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= 7

runsolver used 0.009998 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node47 at 2009-03-28 19:56:26
IDJOB=1516229
IDBENCH=70495
IDSOLVER=539
FILE ID=node47/1516229-1238266585
PBS_JOBID= 9060760
Free space on /tmp= 66264 MiB

SOLVER NAME= VARSAT-random 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/7SAT/SATISFIABLE/60/unif-k7-r89-v60-c5340-S178043354-076.cnf
COMMAND LINE= HOME/varsat-random_static -seed=RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1516229-1238266585/watcher-1516229-1238266585 -o /tmp/evaluation-result-1516229-1238266585/solver-1516229-1238266585 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/varsat-random_static -seed=988128029 HOME/instance-1516229-1238266585.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 1d34e3663c561a89d93a195f39097223
RANDOM SEED=988128029

node47.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		: 3000.216
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		: 3000.216
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:       1341600 kB
Buffers:         93096 kB
Cached:         524712 kB
SwapCached:       7792 kB
Active:          53492 kB
Inactive:       574696 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1341600 kB
SwapTotal:     4192956 kB
SwapFree:      4178912 kB
Dirty:            1144 kB
Writeback:           0 kB
Mapped:          16040 kB
Slab:            72044 kB
Committed_AS:  2913256 kB
PageTables:       1452 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= 66260 MiB
End job on node47 at 2009-03-28 19:56:34