Trace number 310867

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
minimarch 2007-02-08UNSAT 36.2645 36.2751

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	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  1295                                                 |
0.00/0.00	|  Number of clauses:    4026                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.00/0.02	============================[ Search Statistics ]==============================
0.00/0.02	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.02	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.00/0.02	===============================================================================
0.00/0.02	|         0 |    1085     3702    11081 |     1234        0    nan |  0.000 % |
0.00/0.03	|       101 |    1085     3702    11081 |     1357      101     18 |  0.000 % |
0.00/0.03	|       252 |    1085     3702    11081 |     1493      252     16 |  0.000 % |
0.00/0.05	|       477 |    1085     3702    11081 |     1642      477     16 |  0.001 % |
0.00/0.07	|       815 |    1085     3702    11081 |     1806      815     16 |  0.000 % |
0.10/0.11	|      1321 |    1085     3702    11081 |     1987     1321     16 |  0.001 % |
0.10/0.17	|      2080 |    1085     3702    11081 |     2186     1060     14 |  0.000 % |
0.20/0.26	|      3219 |    1085     3702    11081 |     2404     2199     15 |  0.000 % |
0.31/0.41	|      4927 |    1085     3702    11081 |     2645     1412     16 |  0.000 % |
0.61/0.63	|      7490 |    1085     3702    11081 |     2909     2613     15 |  0.000 % |
0.92/0.98	|     11334 |    1085     3702    11081 |     3200     1936     18 |  0.001 % |
1.43/1.53	|     17100 |    1085     3702    11081 |     3520     2756     16 |  0.000 % |
2.36/2.36	|     25749 |    1085     3702    11081 |     3872     2342     16 |  0.000 % |
3.58/3.63	|     38724 |    1085     3702    11081 |     4260     3457     17 |  0.000 % |
5.52/5.60	|     58185 |    1085     3702    11081 |     4686     3440     16 |  0.001 % |
8.60/8.67	|     87378 |    1080     3673    11003 |     5154     2698     15 |  0.386 % |
13.31/13.36	|    131167 |    1080     3673    11003 |     5670     4451     17 |  0.387 % |
20.78/20.86	|    196851 |    1080     3673    11003 |     6237     3821     15 |  0.388 % |
32.35/32.40	|    295377 |    1077     3656    10958 |     6860     5737     15 |  0.618 % |
36.25/36.27	===============================================================================
36.25/36.27	lookaheads            : 350478
36.25/36.27	variable balance      : 0.00
36.25/36.27	restarts              : 19
36.25/36.27	conflicts             : 328119         (9049 /sec)
36.25/36.27	decisions             : 350478         (1.74 % random) (9665 /sec)
36.25/36.27	decision = positive   : 170213
36.25/36.27	decision = negative   : 180265
36.25/36.27	propagations          : 54828570       (1512033 /sec)
36.25/36.27	conflict literals     : 5743454        (38.29 % deleted)
36.25/36.27	Memory used           : 3.34 MB
36.25/36.27	CPU time              : 36.2615 s
36.25/36.27	
36.25/36.27	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/node29/watcher-310867-1172562457 -o ROOT/results/node29/solver-310867-1172562457 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310867-1172562457/minimarch /tmp/evaluation/310867-1172562457/instance-310867-1172562457.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: 0.91 0.95 0.97 3/77 21805
/proc/meminfo: memFree=1828832/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=2004 CPUtime=0
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 180 0 0 0 0 0 0 0 18 0 1 0 250009992 2052096 164 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 501 165 51 132 0 366 0

[startup+0.107542 s]
/proc/loadavg: 0.91 0.95 0.97 3/77 21805
/proc/meminfo: memFree=1828832/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=2232 CPUtime=0.1
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 237 0 0 0 10 0 0 0 18 0 1 0 250009992 2285568 221 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551703 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 558 221 66 132 0 423 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2232

[startup+0.517569 s]
/proc/loadavg: 0.91 0.95 0.97 3/77 21805
/proc/meminfo: memFree=1828832/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=2364 CPUtime=0.51
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 270 0 0 0 51 0 0 0 21 0 1 0 250009992 2420736 254 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134552516 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 591 254 66 132 0 456 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2364

[startup+1.33762 s]
/proc/loadavg: 0.91 0.95 0.97 2/78 21806
/proc/meminfo: memFree=1827864/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=2496 CPUtime=1.33
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 301 0 0 0 133 0 0 0 25 0 1 0 250009992 2555904 285 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551564 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 624 285 66 132 0 489 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2496

[startup+2.97372 s]
/proc/loadavg: 0.92 0.95 0.97 2/78 21806
/proc/meminfo: memFree=1827608/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=2628 CPUtime=2.97
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 338 0 0 0 297 0 0 0 25 0 1 0 250009992 2691072 322 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134558538 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 657 322 66 132 0 522 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2628

[startup+6.24993 s]
/proc/loadavg: 0.92 0.95 0.97 2/78 21806
/proc/meminfo: memFree=1827416/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=2760 CPUtime=6.24
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 380 0 0 0 624 0 0 0 25 0 1 0 250009992 2826240 364 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551188 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 690 364 66 132 0 555 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2760

[startup+12.7063 s]
/proc/loadavg: 0.93 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1827096/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3024 CPUtime=12.7
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 430 0 0 0 1270 0 0 0 25 0 1 0 250009992 3096576 414 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551400 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 756 414 66 132 0 621 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 3024

[startup+25.6091 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1826776/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3288 CPUtime=25.59
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 511 0 0 0 2559 0 0 0 25 0 1 0 250009992 3366912 495 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 822 495 66 132 0 687 0
Current children cumulated CPU time (s) 25.59
Current children cumulated vsize (KiB) 3288

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

[startup+26.2282 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1826776/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3288 CPUtime=26.21
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 512 0 0 0 2621 0 0 0 25 0 1 0 250009992 3366912 496 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551210 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 822 496 66 132 0 687 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 3288

[startup+32.7806 s]
/proc/loadavg: 0.95 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1826648/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3420 CPUtime=32.76
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 553 0 0 0 3276 0 0 0 25 0 1 0 250009992 3502080 537 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557696 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 855 537 66 132 0 720 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 3420

[startup+34.4207 s]
/proc/loadavg: 0.95 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1826648/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3420 CPUtime=34.4
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 555 0 0 0 3440 0 0 0 25 0 1 0 250009992 3502080 539 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551385 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 855 539 66 132 0 720 0
Current children cumulated CPU time (s) 34.4
Current children cumulated vsize (KiB) 3420

[startup+35.2417 s]
/proc/loadavg: 0.95 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1826648/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3420 CPUtime=35.22
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 555 0 0 0 3522 0 0 0 25 0 1 0 250009992 3502080 539 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551188 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 855 539 66 132 0 720 0
Current children cumulated CPU time (s) 35.22
Current children cumulated vsize (KiB) 3420

[startup+36.0578 s]
/proc/loadavg: 0.95 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1826648/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3420 CPUtime=36.04
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 555 0 0 0 3604 0 0 0 25 0 1 0 250009992 3502080 539 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134550930 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 855 539 66 132 0 720 0
Current children cumulated CPU time (s) 36.04
Current children cumulated vsize (KiB) 3420

[startup+36.2658 s]
/proc/loadavg: 0.95 0.96 0.97 2/78 21806
/proc/meminfo: memFree=1826648/2055920 swapFree=4143368/4192956
[pid=21805] ppid=21803 vsize=3420 CPUtime=36.25
/proc/21805/stat : 21805 (minimarch) R 21803 21805 21143 0 -1 4194304 555 0 0 0 3625 0 0 0 25 0 1 0 250009992 3502080 539 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551163 0 0 4096 3 0 0 0 17 1 0 0
/proc/21805/statm: 855 539 66 132 0 720 0
Current children cumulated CPU time (s) 36.25
Current children cumulated vsize (KiB) 3420

Child status: 20
Real time (s): 36.2751
CPU time (s): 36.2645
CPU user time (s): 36.2615
CPU system time (s): 0.002999
CPU usage (%): 99.9706
Max. virtual memory (cumulated for all children) (KiB): 3420

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 36.2615
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 561
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= 7
involuntary context switches= 102

runsolver used 0.040993 second user time and 0.083987 second system time

The end

Launcher Data (download as text)

Begin job on node29 on Tue Feb 27 07:47:37 UTC 2007

IDJOB= 310867
IDBENCH= 20298
IDSOLVER= 110
FILE ID= node29/310867-1172562457

PBS_JOBID= 3971874

Free space on /tmp= 66562 MiB

SOLVER NAME= minimarch 2007-02-08
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/310867-1172562457/minimarch /tmp/evaluation/310867-1172562457/instance-310867-1172562457.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-310867-1172562457 -o ROOT/results/node29/solver-310867-1172562457 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310867-1172562457/minimarch /tmp/evaluation/310867-1172562457/instance-310867-1172562457.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  6c6574c6e53b7d1ef3d1cc6ac9e5dec3

RANDOM SEED= 69103762

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node29.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		: 3000.209
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	: 5931.00
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		: 3000.209
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:       1829240 kB
Buffers:         34384 kB
Cached:         124136 kB
SwapCached:      17668 kB
Active:         105020 kB
Inactive:        82244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1829240 kB
SwapTotal:     4192956 kB
SwapFree:      4143368 kB
Dirty:            2404 kB
Writeback:           0 kB
Mapped:          30032 kB
Slab:            24876 kB
Committed_AS:   726464 kB
PageTables:       1864 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= 66562 MiB

End job on node29 on Tue Feb 27 07:48:14 UTC 2007