Trace number 1723235

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 30.0694 30.0793

General information on the benchmark

Namemanol-pipe-c10nidw_s.cnf
MD5SUM7989bb134c6f50cb418407e85e733980
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark21.7277
Satisfiable
(Un)Satisfiability was proved
Number of variables404382
Number of clauses1204273
Sum of the clauses size2809969
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 2802848
Number of clauses of size 3401424
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

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 |                                                                             |
1.49/1.59	c |  Number of variables:        404382                                         |
1.49/1.59	c |  Number of clauses:         1204272                                         |
1.49/1.59	c |  Parse time:                   1.43 s                                       |
8.99/9.09	c |  Simplification time:          7.38 s                                       |
8.99/9.09	c |                                                                             |
8.99/9.09	c ============================[ Search Statistics ]==============================
8.99/9.09	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
8.99/9.09	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
8.99/9.09	c ===============================================================================
9.09/9.19	c |       100 |   86769   540853  2441505 |   198312       94     12 |  0.159 % |
9.29/9.30	c |       250 |   86769   540853  2441505 |   218144      244     10 |  0.159 % |
9.59/9.69	c |       475 |   86769   540853  2441505 |   239958      469     14 |  0.159 % |
9.89/9.96	c |       812 |   86769   540853  2441505 |   263954      806     18 |  0.159 % |
10.09/10.11	c |      1318 |   86741   540853  2441505 |   290349     1311     18 |  0.165 % |
10.59/10.62	c |      2077 |   86602   540853  2441505 |   319384     2066     19 |  0.200 % |
11.19/11.26	c |      3216 |   86602   533899  2407431 |   351323     3124     20 |  0.200 % |
12.29/12.30	c |      4924 |   86602   533899  2407431 |   386455     4832     19 |  0.200 % |
13.29/13.34	c |      7486 |   86361   533825  2407188 |   425101     7389     20 |  0.259 % |
14.68/14.70	c |     11330 |   84921   524180  2365950 |   467611    11204     22 |  0.616 % |
16.28/16.32	c |     17096 |   84886   518475  2338201 |   514372    16905     21 |  0.624 % |
18.39/18.47	c |     25745 |   84009   518448  2338068 |   565809    25547     22 |  0.841 % |
22.78/22.85	c |     38719 |   83691   509038  2290142 |   622390    38478     26 |  0.920 % |
26.98/27.08	c |     58180 |   83668   508644  2288606 |   684629    57928     24 |  0.925 % |
28.48/28.56	c |     87372 |   83526   506875  2280413 |   753092    75900     19 |  0.960 % |
29.98/30.05	c ===============================================================================
29.98/30.05	c restarts              : 263
29.98/30.05	c conflicts             : 103904         (3494 /sec)
29.98/30.05	c decisions             : 504400         (16962 /sec)
29.98/30.05	c propagations          : 36469556       (1226384 /sec)
29.98/30.05	c conflict literals     : 1832799        (35.01 % deleted)
29.98/30.05	c Memory used           : 158.90 MB
29.98/30.05	c CPU time              : 29.7375 s
29.98/30.05	c 
29.98/30.05	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-1723235-1240684316/watcher-1723235-1240684316 -o /tmp/evaluation-result-1723235-1240684316/solver-1723235-1240684316 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1723235-1240684316.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: 1.00 1.00 1.06 3/64 17751
/proc/meminfo: memFree=1685528/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=7612 CPUtime=0
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 442 0 0 0 0 0 0 0 18 0 1 0 96465831 7794688 426 1992294400 4194304 5092341 548682068832 18446744073709551615 4515536 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 1903 426 63 219 0 1681 0

[startup+0.0950439 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 17751
/proc/meminfo: memFree=1685528/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=15344 CPUtime=0.08
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 2649 0 0 0 8 0 0 0 18 0 1 0 96465831 15712256 2523 1992294400 4194304 5092341 548682068832 18446744073709551615 4244968 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 3836 2523 63 219 0 3614 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 15344

[startup+0.101044 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 17751
/proc/meminfo: memFree=1685528/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=15944 CPUtime=0.09
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 2739 0 0 0 9 0 0 0 18 0 1 0 96465831 16326656 2613 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 3986 2617 63 219 0 3764 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15944

[startup+0.301059 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 17751
/proc/meminfo: memFree=1685528/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=29832 CPUtime=0.29
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 7358 0 0 0 26 3 0 0 19 0 1 0 96465831 30547968 6771 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 7458 6771 63 219 0 7236 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 29832

[startup+0.701093 s]
/proc/loadavg: 1.00 1.00 1.06 3/64 17751
/proc/meminfo: memFree=1685528/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=63788 CPUtime=0.69
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 15861 0 0 0 63 6 0 0 23 0 1 0 96465831 65318912 14441 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 15947 14441 63 219 0 15725 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 63788

[startup+1.50116 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 17752
/proc/meminfo: memFree=1605712/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=135156 CPUtime=1.49
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 32145 0 0 0 134 15 0 0 25 0 1 0 96465831 138399744 28849 1992294400 4194304 5092341 548682068832 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 33789 28849 63 219 0 33567 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 135156

[startup+3.10129 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 17752
/proc/meminfo: memFree=1557392/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=167732 CPUtime=3.09
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 40132 0 0 0 290 19 0 0 25 0 1 0 96465831 171757568 36836 1992294400 4194304 5092341 548682068832 18446744073709551615 4223967 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 41933 36836 87 219 0 41711 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 167732

[startup+6.30155 s]
/proc/loadavg: 1.08 1.02 1.06 2/65 17752
/proc/meminfo: memFree=1515280/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=206980 CPUtime=6.29
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 48007 0 0 0 605 24 0 0 25 0 1 0 96465831 211947520 44711 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 51745 44711 87 219 0 51523 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 206980

[startup+12.7011 s]
/proc/loadavg: 1.07 1.02 1.06 2/65 17752
/proc/meminfo: memFree=1549136/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=153948 CPUtime=12.69
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 53844 0 0 0 1241 28 0 0 25 0 1 0 96465831 157642752 34112 1992294400 4194304 5092341 548682068832 18446744073709551615 4246796 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 38487 34112 102 219 0 38265 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 153948

[startup+25.5011 s]
/proc/loadavg: 1.06 1.01 1.06 2/65 17752
/proc/meminfo: memFree=1544720/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=153948 CPUtime=25.49
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 54989 0 0 0 2519 30 0 0 25 0 1 0 96465831 157642752 35257 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 38487 35257 102 219 0 38265 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 153948

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

[startup+27.1012 s]
/proc/loadavg: 1.06 1.01 1.06 2/65 17752
/proc/meminfo: memFree=1544592/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=162708 CPUtime=27.08
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 55208 0 0 0 2678 30 0 0 25 0 1 0 96465831 166612992 35476 1992294400 4194304 5092341 548682068832 18446744073709551615 4250659 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 40677 35476 102 219 0 40455 0
Current children cumulated CPU time (s) 27.08
Current children cumulated vsize (KiB) 162708

[startup+28.7014 s]
/proc/loadavg: 1.05 1.01 1.06 2/65 17752
/proc/meminfo: memFree=1542480/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=162708 CPUtime=28.68
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 55596 0 0 0 2838 30 0 0 25 0 1 0 96465831 166612992 35864 1992294400 4194304 5092341 548682068832 18446744073709551615 4248079 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 40677 35864 102 219 0 40455 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 162708

[startup+29.5014 s]
/proc/loadavg: 1.05 1.01 1.06 2/65 17752
/proc/meminfo: memFree=1542480/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=162708 CPUtime=29.48
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 55724 0 0 0 2918 30 0 0 25 0 1 0 96465831 166612992 35992 1992294400 4194304 5092341 548682068832 18446744073709551615 4247324 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 40677 35992 102 219 0 40455 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 162708

[startup+29.9015 s]
/proc/loadavg: 1.05 1.01 1.06 2/65 17752
/proc/meminfo: memFree=1541712/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=162708 CPUtime=29.88
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 55724 0 0 0 2958 30 0 0 25 0 1 0 96465831 166612992 35992 1992294400 4194304 5092341 548682068832 18446744073709551615 4247153 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 40677 35992 102 219 0 40455 0
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (KiB) 162708

[startup+30.0015 s]
/proc/loadavg: 1.05 1.01 1.06 2/65 17752
/proc/meminfo: memFree=1541712/2055920 swapFree=4192812/4192956
[pid=17751] ppid=17749 vsize=162708 CPUtime=29.98
/proc/17751/stat : 17751 (minisat) R 17749 17751 17489 0 -1 4194304 55724 0 0 0 2968 30 0 0 25 0 1 0 96465831 166612992 35992 1992294400 4194304 5092341 548682068832 18446744073709551615 4246852 0 0 4096 3 0 0 0 17 0 0 0
/proc/17751/statm: 40677 35992 102 219 0 40455 0
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (KiB) 162708

Child status: 20
Real time (s): 30.0793
CPU time (s): 30.0694
CPU user time (s): 29.7375
CPU system time (s): 0.331949
CPU usage (%): 99.9671
Max. virtual memory (cumulated for all children) (KiB): 210316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.7375
system time used= 0.331949
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 55738
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= 88

runsolver used 0.032994 second user time and 0.085986 second system time

The end

Launcher Data 

Begin job on node3 at 2009-04-25 20:31:58
IDJOB=1723235
IDBENCH=71688
IDSOLVER=546
FILE ID=node3/1723235-1240684316
PBS_JOBID= 9186673
Free space on /tmp= 66048 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE06/manol-pipe-c10nidw_s.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723235-1240684316/watcher-1723235-1240684316 -o /tmp/evaluation-result-1723235-1240684316/solver-1723235-1240684316 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1723235-1240684316.cnf

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

MD5SUM BENCH= 7989bb134c6f50cb418407e85e733980
RANDOM SEED=2070839204

node3.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:       1685944 kB
Buffers:         31648 kB
Cached:         264688 kB
SwapCached:        144 kB
Active:         113840 kB
Inactive:       197596 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1685944 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           22996 kB
Writeback:           0 kB
Mapped:          23700 kB
Slab:            44588 kB
Committed_AS:   343224 kB
PageTables:       1380 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= 66048 MiB
End job on node3 at 2009-04-25 20:32:28