Trace number 1715723

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 50.2494 50.2725

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-13-u.cnf
MD5SUM127968d7d14f3ab7655995f561e62ed8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark37.5733
Satisfiable
(Un)Satisfiability was proved
Number of variables178708
Number of clauses806681
Sum of the clauses size1842626
Maximum clause length10
Minimum clause length1
Number of clauses of size 115072
Number of clauses of size 2648853
Number of clauses of size 3108896
Number of clauses of size 43760
Number of clauses of size 515040
Number of clauses of size over 515060

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 |                                                                             |
0.79/0.88	c |  Number of variables:        178708                                         |
0.79/0.88	c |  Number of clauses:          791609                                         |
0.79/0.88	c |  Parse time:                   0.78 s                                       |
2.99/3.05	c |  Simplification time:          2.14 s                                       |
2.99/3.05	c |                                                                             |
2.99/3.05	c ============================[ Search Statistics ]==============================
2.99/3.05	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
2.99/3.05	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
2.99/3.05	c ===============================================================================
3.29/3.35	c |       100 |   46656   312668   815261 |   114644       84     40 | 45.799 % |
3.69/3.71	c |       250 |   45898   312668   815261 |   126109      227     45 | 46.223 % |
3.99/4.08	c |       475 |   42519   248920   661942 |   138720      435     53 | 48.114 % |
4.59/4.69	c |       812 |   39083   220432   589185 |   152592      751     66 | 50.037 % |
5.19/5.29	c |      1318 |   33973   188991   508367 |   167851     1210     70 | 52.896 % |
6.39/6.42	c |      2077 |   29512   153483   418931 |   184636     1908     69 | 55.393 % |
7.59/7.61	c |      3216 |   25247   123188   338501 |   203100     3025     59 | 57.779 % |
9.09/9.14	c |      4924 |   25175   122722   337258 |   223410     4718     46 | 57.819 % |
11.39/11.43	c |      7486 |   25157   122594   336934 |   245751     7272     37 | 57.830 % |
15.08/15.20	c |     11330 |   25096   122189   335861 |   270326    11102     37 | 57.864 % |
21.88/21.98	c |     17096 |   24644   117432   323107 |   297359    16842     38 | 58.117 % |
29.98/30.07	c |     25745 |   23863   112617   310744 |   327095    25450     37 | 58.554 % |
42.97/43.04	c |     38719 |   21048    96266   266887 |   359804    38353     35 | 60.129 % |
50.17/50.26	c ===============================================================================
50.17/50.26	c restarts              : 130
50.17/50.26	c conflicts             : 45268          (904 /sec)
50.17/50.26	c decisions             : 63794          (1274 /sec)
50.17/50.26	c propagations          : 90248636       (1801824 /sec)
50.17/50.26	c conflict literals     : 1490000        (56.22 % deleted)
50.17/50.26	c Memory used           : 69.82 MB
50.17/50.26	c CPU time              : 50.0874 s
50.17/50.26	c 
50.17/50.26	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-1715723-1240606413/watcher-1715723-1240606413 -o /tmp/evaluation-result-1715723-1240606413/solver-1715723-1240606413 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1715723-1240606413.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: 1.91 1.74 0.97 3/64 24569
/proc/meminfo: memFree=1193856/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=7960 CPUtime=0
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 529 0 0 0 0 0 0 0 18 0 1 0 88675430 8151040 513 1992294400 4194304 5092341 548682068832 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 1990 513 63 219 0 1768 0

[startup+0.0384149 s]
/proc/loadavg: 1.91 1.74 0.97 3/64 24569
/proc/meminfo: memFree=1193856/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=12224 CPUtime=0.03
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 1572 0 0 0 3 0 0 0 18 0 1 0 88675430 12517376 1556 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 3056 1556 63 219 0 2834 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12224

[startup+0.10142 s]
/proc/loadavg: 1.91 1.74 0.97 3/64 24569
/proc/meminfo: memFree=1193856/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=20992 CPUtime=0.09
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 3815 0 0 0 8 1 0 0 18 0 1 0 88675430 21495808 3657 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 5248 3657 63 219 0 5026 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 20992

[startup+0.301438 s]
/proc/loadavg: 1.91 1.74 0.97 3/64 24569
/proc/meminfo: memFree=1193856/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=44440 CPUtime=0.29
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 9934 0 0 0 25 4 0 0 19 0 1 0 88675430 45506560 9346 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 11110 9347 63 219 0 10888 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 44440

[startup+0.701478 s]
/proc/loadavg: 1.91 1.74 0.97 3/64 24569
/proc/meminfo: memFree=1193856/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=67168 CPUtime=0.69
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 16286 0 0 0 62 7 0 0 23 0 1 0 88675430 68780032 14938 1992294400 4194304 5092341 548682068832 18446744073709551615 4494759 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 16792 14938 63 219 0 16570 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 67168

[startup+1.50156 s]
/proc/loadavg: 1.91 1.74 0.97 2/65 24570
/proc/meminfo: memFree=1122808/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=82628 CPUtime=1.49
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 20259 0 0 0 139 10 0 0 25 0 1 0 88675430 84611072 18227 1992294400 4194304 5092341 548682068832 18446744073709551615 4224227 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 20657 18227 87 219 0 20435 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 82628

[startup+3.10172 s]
/proc/loadavg: 1.91 1.74 0.97 2/65 24570
/proc/meminfo: memFree=1115640/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=65004 CPUtime=3.09
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 23116 0 0 0 297 12 0 0 25 0 1 0 88675430 66564096 14458 1992294400 4194304 5092341 548682068832 18446744073709551615 4241418 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 16251 14458 91 219 0 16029 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 65004

[startup+6.30103 s]
/proc/loadavg: 1.84 1.72 0.97 2/65 24570
/proc/meminfo: memFree=1135544/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=65004 CPUtime=6.29
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 23278 0 0 0 616 13 0 0 25 0 1 0 88675430 66564096 14620 1992294400 4194304 5092341 548682068832 18446744073709551615 4246920 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 16251 14620 101 219 0 16029 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 65004

[startup+12.7017 s]
/proc/loadavg: 1.77 1.71 0.97 2/65 24570
/proc/meminfo: memFree=1134904/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=67600 CPUtime=12.69
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 23484 0 0 0 1256 13 0 0 25 0 1 0 88675430 69222400 14826 1992294400 4194304 5092341 548682068832 18446744073709551615 4244035 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 16900 14826 102 219 0 16678 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 67600

[startup+25.5019 s]
/proc/loadavg: 1.60 1.68 0.97 2/65 24570
/proc/meminfo: memFree=1133176/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=67600 CPUtime=25.48
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 23953 0 0 0 2535 13 0 0 25 0 1 0 88675430 69222400 15295 1992294400 4194304 5092341 548682068832 18446744073709551615 4248171 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 16900 15295 102 219 0 16678 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 67600

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

[startup+38.3012 s]
/proc/loadavg: 1.51 1.65 0.97 2/65 24570
/proc/meminfo: memFree=1131384/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=71492 CPUtime=38.28
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 24406 0 0 0 3814 14 0 0 25 0 1 0 88675430 73207808 15748 1992294400 4194304 5092341 548682068832 18446744073709551615 4240558 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 17873 15748 102 219 0 17651 0
Current children cumulated CPU time (s) 38.28
Current children cumulated vsize (KiB) 71492

[startup+44.7018 s]
/proc/loadavg: 1.47 1.64 0.97 2/65 24570
/proc/meminfo: memFree=1130552/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=71492 CPUtime=44.67
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 24595 0 0 0 4453 14 0 0 25 0 1 0 88675430 73207808 15937 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 17873 15937 102 219 0 17651 0
Current children cumulated CPU time (s) 44.67
Current children cumulated vsize (KiB) 71492

[startup+47.9011 s]
/proc/loadavg: 1.43 1.63 0.97 2/65 24570
/proc/meminfo: memFree=1130040/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=71492 CPUtime=47.86
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 24712 0 0 0 4772 14 0 0 25 0 1 0 88675430 73207808 16054 1992294400 4194304 5092341 548682068832 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 17873 16054 102 219 0 17651 0
Current children cumulated CPU time (s) 47.86
Current children cumulated vsize (KiB) 71492

[startup+49.5053 s]
/proc/loadavg: 1.43 1.63 0.97 2/65 24570
/proc/meminfo: memFree=1129912/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=71492 CPUtime=49.48
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 24733 0 0 0 4933 15 0 0 25 0 1 0 88675430 73207808 16075 1992294400 4194304 5092341 548682068832 18446744073709551615 4240665 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 17873 16075 102 219 0 17651 0
Current children cumulated CPU time (s) 49.48
Current children cumulated vsize (KiB) 71492

[startup+49.9013 s]
/proc/loadavg: 1.43 1.63 0.97 2/65 24570
/proc/meminfo: memFree=1129912/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=71492 CPUtime=49.87
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 24737 0 0 0 4972 15 0 0 25 0 1 0 88675430 73207808 16079 1992294400 4194304 5092341 548682068832 18446744073709551615 4244035 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 17873 16079 102 219 0 17651 0
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (KiB) 71492

[startup+50.1014 s]
/proc/loadavg: 1.43 1.63 0.97 2/65 24570
/proc/meminfo: memFree=1129912/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=71492 CPUtime=50.07
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 24740 0 0 0 4992 15 0 0 25 0 1 0 88675430 73207808 16082 1992294400 4194304 5092341 548682068832 18446744073709551615 4240640 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 17873 16082 102 219 0 17651 0
Current children cumulated CPU time (s) 50.07
Current children cumulated vsize (KiB) 71492

[startup+50.2014 s]
/proc/loadavg: 1.43 1.63 0.97 2/65 24570
/proc/meminfo: memFree=1129912/2055920 swapFree=4192956/4192956
[pid=24569] ppid=24567 vsize=71492 CPUtime=50.17
/proc/24569/stat : 24569 (minisat) R 24567 24569 24446 0 -1 4194304 24740 0 0 0 5002 15 0 0 25 0 1 0 88675430 73207808 16082 1992294400 4194304 5092341 548682068832 18446744073709551615 4247008 0 0 4096 3 0 0 0 17 0 0 0
/proc/24569/statm: 17873 16082 102 219 0 17651 0
Current children cumulated CPU time (s) 50.17
Current children cumulated vsize (KiB) 71492

Child status: 20
Real time (s): 50.2725
CPU time (s): 50.2494
CPU user time (s): 50.0874
CPU system time (s): 0.161975
CPU usage (%): 99.9539
Max. virtual memory (cumulated for all children) (KiB): 87316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 50.0874
system time used= 0.161975
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 24751
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= 119

runsolver used 0.040993 second user time and 0.147977 second system time

The end

Launcher Data 

Begin job on node12 at 2009-04-24 22:53:34
IDJOB=1715723
IDBENCH=20347
IDSOLVER=546
FILE ID=node12/1715723-1240606413
PBS_JOBID= 9186302
Free space on /tmp= 66328 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT07/industrial/anbulagan/medium-unsat/total-5-13-u.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1715723-1240606413/watcher-1715723-1240606413 -o /tmp/evaluation-result-1715723-1240606413/solver-1715723-1240606413 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1715723-1240606413.cnf

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

MD5SUM BENCH= 127968d7d14f3ab7655995f561e62ed8
RANDOM SEED=2143119058

node12.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		: 3000.213
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		: 3000.213
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:       1194272 kB
Buffers:         75020 kB
Cached:         685016 kB
SwapCached:          0 kB
Active:         130404 kB
Inactive:       643532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1194272 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           15048 kB
Writeback:           0 kB
Mapped:          23636 kB
Slab:            73756 kB
Committed_AS:   381832 kB
PageTables:       1376 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= 66328 MiB
End job on node12 at 2009-04-24 22:54:25