Trace number 311031

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 40.9418 40.9534

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
MD5SUM914d3e80d7a891b747d01777ed9ce8d7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.2419
Satisfiable
(Un)Satisfiability was proved
Number of variables1294
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 |    1083     3709    11128 |     1236        0    nan |  0.000 % |
0.00/0.03	|       100 |    1083     3709    11128 |     1359      100     17 |  0.077 % |
0.00/0.03	|       250 |    1083     3709    11128 |     1495      250     15 |  0.077 % |
0.00/0.05	|       475 |    1083     3709    11128 |     1645      475     15 |  0.077 % |
0.00/0.07	|       812 |    1083     3709    11128 |     1810      812     16 |  0.078 % |
0.10/0.11	|      1318 |    1083     3709    11128 |     1991     1318     16 |  0.077 % |
0.10/0.17	|      2078 |    1083     3709    11128 |     2190     1071     15 |  0.077 % |
0.20/0.26	|      3218 |    1083     3709    11128 |     2409     2211     17 |  0.077 % |
0.30/0.40	|      4926 |    1083     3709    11128 |     2650     1412     16 |  0.078 % |
0.61/0.61	|      7488 |    1083     3709    11128 |     2915     2612     16 |  0.078 % |
0.92/0.96	|     11332 |    1083     3709    11128 |     3206     1940     15 |  0.078 % |
1.43/1.50	|     17098 |    1083     3709    11128 |     3527     2723     16 |  0.077 % |
2.25/2.34	|     25747 |    1083     3709    11128 |     3880     2285     16 |  0.078 % |
3.58/3.64	|     38721 |    1083     3709    11128 |     4268     3306     17 |  0.077 % |
5.63/5.66	|     58182 |    1083     3709    11128 |     4694     3258     18 |  0.077 % |
8.70/8.72	|     87375 |    1083     3709    11128 |     5164     3744     17 |  0.077 % |
13.51/13.56	|    131164 |    1083     3709    11128 |     5680     2978     16 |  0.077 % |
20.99/21.02	|    196848 |    1083     3709    11128 |     6249     5194     16 |  0.078 % |
32.55/32.63	|    295375 |    1080     3692    11080 |     6873     4728     15 |  0.309 % |
40.84/40.95	===============================================================================
40.84/40.95	lookaheads            : 387711
40.84/40.95	variable balance      : 0.00
40.84/40.95	restarts              : 19
40.84/40.95	conflicts             : 363411         (8878 /sec)
40.84/40.95	decisions             : 387711         (1.76 % random) (9471 /sec)
40.84/40.95	decision = positive   : 195267
40.84/40.95	decision = negative   : 192444
40.84/40.95	propagations          : 59600588       (1455989 /sec)
40.84/40.95	conflict literals     : 6574388        (38.63 % deleted)
40.84/40.95	Memory used           : 3.48 MB
40.84/40.95	CPU time              : 40.9348 s
40.84/40.95	
40.84/40.95	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/node41/watcher-311031-1172564023 -o ROOT/results/node41/solver-311031-1172564023 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311031-1172564023/minimarch /tmp/evaluation/311031-1172564023/instance-311031-1172564023.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: 0.92 0.98 0.98 3/64 17964
/proc/meminfo: memFree=1815024/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=2000 CPUtime=0
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 180 0 0 0 0 0 0 0 18 0 1 0 276358203 2048000 164 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 500 164 51 132 0 365 0

[startup+0.107638 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 17964
/proc/meminfo: memFree=1815024/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=2236 CPUtime=0.1
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 238 0 0 0 10 0 0 0 18 0 1 0 276358203 2289664 222 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134557551 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 559 222 66 132 0 424 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2236

[startup+0.515673 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 17964
/proc/meminfo: memFree=1815024/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=2372 CPUtime=0.51
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 273 0 0 0 51 0 0 0 21 0 1 0 276358203 2428928 257 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134552507 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 593 257 66 132 0 458 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2372

[startup+1.33575 s]
/proc/loadavg: 0.92 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1814056/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=2504 CPUtime=1.33
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 309 0 0 0 133 0 0 0 25 0 1 0 276358203 2564096 293 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134550924 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 626 293 66 132 0 491 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2504

[startup+2.97189 s]
/proc/loadavg: 0.92 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1813864/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=2636 CPUtime=2.96
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 351 0 0 0 296 0 0 0 25 0 1 0 276358203 2699264 335 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551210 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 659 335 66 132 0 524 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2636

[startup+6.24817 s]
/proc/loadavg: 0.93 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1813608/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=2768 CPUtime=6.24
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 384 0 0 0 624 0 0 0 25 0 1 0 276358203 2834432 368 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551700 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 692 368 66 132 0 557 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 2768

[startup+12.7037 s]
/proc/loadavg: 0.93 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1813232/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3032 CPUtime=12.69
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 449 0 0 0 1269 0 0 0 25 0 1 0 276358203 3104768 433 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 758 433 66 132 0 623 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3032

[startup+25.5048 s]
/proc/loadavg: 0.95 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812976/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3428 CPUtime=25.49
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 541 0 0 0 2549 0 0 0 25 0 1 0 276358203 3510272 525 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551660 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 857 525 66 132 0 722 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3428

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

[startup+26.2249 s]
/proc/loadavg: 0.95 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812912/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3428 CPUtime=26.21
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 544 0 0 0 2621 0 0 0 25 0 1 0 276358203 3510272 528 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551713 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 857 528 66 132 0 722 0
Current children cumulated CPU time (s) 26.21
Current children cumulated vsize (KiB) 3428

[startup+32.7775 s]
/proc/loadavg: 0.95 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812848/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3428 CPUtime=32.76
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 551 0 0 0 3276 0 0 0 25 0 1 0 276358203 3510272 535 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134550924 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 857 535 66 132 0 722 0
Current children cumulated CPU time (s) 32.76
Current children cumulated vsize (KiB) 3428

[startup+36.0528 s]
/proc/loadavg: 0.95 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812784/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3560 CPUtime=36.04
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 577 0 0 0 3604 0 0 0 25 0 1 0 276358203 3645440 561 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 890 561 66 132 0 755 0
Current children cumulated CPU time (s) 36.04
Current children cumulated vsize (KiB) 3560

[startup+39.3291 s]
/proc/loadavg: 0.95 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812784/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3560 CPUtime=39.31
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 584 0 0 0 3931 0 0 0 25 0 1 0 276358203 3645440 568 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551365 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 890 568 66 132 0 755 0
Current children cumulated CPU time (s) 39.31
Current children cumulated vsize (KiB) 3560

[startup+40.1491 s]
/proc/loadavg: 0.95 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812720/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3560 CPUtime=40.13
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 585 0 0 0 4013 0 0 0 25 0 1 0 276358203 3645440 569 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134550326 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 890 569 66 132 0 755 0
Current children cumulated CPU time (s) 40.13
Current children cumulated vsize (KiB) 3560

[startup+40.5572 s]
/proc/loadavg: 0.96 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812720/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3560 CPUtime=40.54
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 585 0 0 0 4054 0 0 0 25 0 1 0 276358203 3645440 569 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551660 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 890 569 66 132 0 755 0
Current children cumulated CPU time (s) 40.54
Current children cumulated vsize (KiB) 3560

[startup+40.7652 s]
/proc/loadavg: 0.96 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812720/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3560 CPUtime=40.74
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 586 0 0 0 4074 0 0 0 25 0 1 0 276358203 3645440 570 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551188 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 890 570 66 132 0 755 0
Current children cumulated CPU time (s) 40.74
Current children cumulated vsize (KiB) 3560

[startup+40.8672 s]
/proc/loadavg: 0.96 0.98 0.98 2/65 17965
/proc/meminfo: memFree=1812720/2055920 swapFree=4172320/4192956
[pid=17964] ppid=17962 vsize=3560 CPUtime=40.84
/proc/17964/stat : 17964 (minimarch) R 17962 17964 16394 0 -1 4194304 586 0 0 0 4084 0 0 0 25 0 1 0 276358203 3645440 570 18446744073709551615 134512640 135054332 4294956704 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/17964/statm: 890 570 66 132 0 755 0
Current children cumulated CPU time (s) 40.84
Current children cumulated vsize (KiB) 3560

Child status: 20
Real time (s): 40.9534
CPU time (s): 40.9418
CPU user time (s): 40.9348
CPU system time (s): 0.006998
CPU usage (%): 99.9717
Max. virtual memory (cumulated for all children) (KiB): 3560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.9348
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 592
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= 24

runsolver used 0.034994 second user time and 0.084987 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Tue Feb 27 08:13:43 UTC 2007

IDJOB= 311031
IDBENCH= 20303
IDSOLVER= 110
FILE ID= node41/311031-1172564023

PBS_JOBID= 3971884

Free space on /tmp= 66558 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1239472001-19-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311031-1172564023/minimarch /tmp/evaluation/311031-1172564023/instance-311031-1172564023.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-311031-1172564023 -o ROOT/results/node41/solver-311031-1172564023 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311031-1172564023/minimarch /tmp/evaluation/311031-1172564023/instance-311031-1172564023.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  914d3e80d7a891b747d01777ed9ce8d7

RANDOM SEED= 668630097

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.231
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		: 3000.231
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:       1815496 kB
Buffers:         31740 kB
Cached:         147848 kB
SwapCached:      14892 kB
Active:         106548 kB
Inactive:        94776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1815496 kB
SwapTotal:     4192956 kB
SwapFree:      4172320 kB
Dirty:            2316 kB
Writeback:           0 kB
Mapped:          15728 kB
Slab:            25124 kB
Committed_AS:   555144 kB
PageTables:       1476 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= 66558 MiB

End job on node41 on Tue Feb 27 08:14:24 UTC 2007