Trace number 428075

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 2007-04-26 (fixed)UNSAT 28.4427 28.4522

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 1.1, 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	|       102 |    1083     3709    11128 |     1359      102     20 |  0.077 % |
0.00/0.03	|       252 |    1083     3709    11128 |     1495      252     19 |  0.077 % |
0.04/0.05	|       479 |    1083     3709    11128 |     1645      479     18 |  0.077 % |
0.04/0.07	|       816 |    1083     3709    11128 |     1810      816     18 |  0.077 % |
0.09/0.11	|      1322 |    1083     3709    11128 |     1991     1322     18 |  0.078 % |
0.09/0.16	|      2081 |    1083     3709    11128 |     2190     2081     17 |  0.078 % |
0.19/0.26	|      3221 |    1083     3709    11128 |     2409     2079     18 |  0.078 % |
0.39/0.40	|      4929 |    1083     3709    11128 |     2650     1284     19 |  0.077 % |
0.59/0.62	|      7492 |    1083     3709    11128 |     2915     2468     16 |  0.077 % |
0.89/0.96	|     11336 |    1083     3709    11128 |     3206     1847     15 |  0.077 % |
1.39/1.49	|     17103 |    1083     3709    11128 |     3527     2702     16 |  0.077 % |
2.29/2.30	|     25754 |    1083     3709    11128 |     3880     2393     15 |  0.077 % |
3.49/3.56	|     38728 |    1083     3709    11128 |     4268     3488     15 |  0.077 % |
5.40/5.48	|     58190 |    1083     3709    11128 |     4694     3338     15 |  0.078 % |
8.39/8.46	|     87382 |    1079     3685    11057 |     5164     3661     18 |  0.386 % |
12.99/13.09	|    131171 |    1079     3685    11057 |     5680     2789     17 |  0.386 % |
20.19/20.26	|    196855 |    1060     3542    10592 |     6249     4375     18 |  1.854 % |
28.39/28.45	===============================================================================
28.39/28.45	lookaheads            : 21486
28.39/28.45	variable balance      : 0.00
28.39/28.45	restarts              : 18
28.39/28.45	conflicts             : 267309         (9398 /sec)
28.39/28.45	decisions             : 335220         (1.75 % random) (11786 /sec)
28.39/28.45	decision = positive   : 179817
28.39/28.45	decision = negative   : 155403
28.39/28.45	propagations          : 39405940       (1385500 /sec)
28.39/28.45	conflict literals     : 4835271        (39.84 % deleted)
28.39/28.45	Memory used           : 3.35 MB
28.39/28.45	CPU time              : 28.4417 s
28.39/28.45	
28.39/28.45	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node11/watcher-428075-1177700991 -o ROOT/results/node11/solver-428075-1177700991 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428075-1177700991/minimarch_fixed /tmp/evaluation/428075-1177700991/instance-428075-1177700991.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): 2400 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 0.96 3/77 23429
/proc/meminfo: memFree=1542432/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2000 CPUtime=0
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 178 0 0 0 0 0 0 0 18 0 1 0 211148045 2048000 163 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134691888 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 500 163 51 132 0 365 0

[startup+0.0446521 s]
/proc/loadavg: 0.99 0.97 0.96 3/77 23429
/proc/meminfo: memFree=1542432/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2236 CPUtime=0.04
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 238 0 0 0 4 0 0 0 18 0 1 0 211148045 2289664 223 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134557581 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 559 223 67 132 0 424 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2236

[startup+0.101658 s]
/proc/loadavg: 0.99 0.97 0.96 3/77 23429
/proc/meminfo: memFree=1542432/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2236 CPUtime=0.09
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 238 0 0 0 9 0 0 0 18 0 1 0 211148045 2289664 223 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134550973 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 559 223 67 132 0 424 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2236

[startup+0.301683 s]
/proc/loadavg: 0.99 0.97 0.96 3/77 23429
/proc/meminfo: memFree=1542432/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2368 CPUtime=0.29
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 271 0 0 0 29 0 0 0 19 0 1 0 211148045 2424832 256 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551374 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 592 256 67 132 0 457 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2368

[startup+0.70173 s]
/proc/loadavg: 0.99 0.97 0.96 3/77 23429
/proc/meminfo: memFree=1542432/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2368 CPUtime=0.69
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 283 0 0 0 69 0 0 0 22 0 1 0 211148045 2424832 268 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134558522 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 592 268 67 132 0 457 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2368

[startup+1.50182 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1541592/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2500 CPUtime=1.49
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 307 0 0 0 149 0 0 0 25 0 1 0 211148045 2560000 292 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134553222 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 625 292 67 132 0 490 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2500

[startup+3.10201 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1541336/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2632 CPUtime=3.09
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 337 0 0 0 309 0 0 0 25 0 1 0 211148045 2695168 322 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551218 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 658 322 67 132 0 523 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2632

[startup+6.30139 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1541080/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=2764 CPUtime=6.29
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 390 0 0 0 629 0 0 0 25 0 1 0 211148045 2830336 375 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551184 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 691 375 67 132 0 556 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2764

[startup+12.7012 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1540696/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=3160 CPUtime=12.69
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 460 0 0 0 1269 0 0 0 25 0 1 0 211148045 3235840 445 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551719 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 790 445 67 132 0 655 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3160

[startup+25.5017 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1540312/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=3424 CPUtime=25.49
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 553 0 0 0 2549 0 0 0 25 0 1 0 211148045 3506176 538 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551227 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 856 538 67 132 0 721 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3424

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

[startup+27.1019 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1540312/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=3424 CPUtime=27.09
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 553 0 0 0 2709 0 0 0 25 0 1 0 211148045 3506176 538 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551296 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 856 538 67 132 0 721 0
Current children cumulated CPU time (s) 27.09
Current children cumulated vsize (KiB) 3424

[startup+27.9019 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1540312/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=3424 CPUtime=27.89
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 553 0 0 0 2789 0 0 0 25 0 1 0 211148045 3506176 538 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134558089 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 856 538 67 132 0 721 0
Current children cumulated CPU time (s) 27.89
Current children cumulated vsize (KiB) 3424

[startup+28.302 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1540312/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=3424 CPUtime=28.29
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 553 0 0 0 2829 0 0 0 25 0 1 0 211148045 3506176 538 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551296 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 856 538 67 132 0 721 0
Current children cumulated CPU time (s) 28.29
Current children cumulated vsize (KiB) 3424

[startup+28.402 s]
/proc/loadavg: 0.99 0.97 0.96 2/78 23430
/proc/meminfo: memFree=1540312/2055920 swapFree=4146768/4192956
[pid=23429] ppid=23427 vsize=3424 CPUtime=28.39
/proc/23429/stat : 23429 (minimarch_fixed) R 23427 23429 22214 0 -1 4194304 553 0 0 0 2839 0 0 0 25 0 1 0 211148045 3506176 538 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134551218 0 0 4096 3 0 0 0 17 1 0 0
/proc/23429/statm: 856 538 67 132 0 721 0
Current children cumulated CPU time (s) 28.39
Current children cumulated vsize (KiB) 3424

Child status: 20
Real time (s): 28.4522
CPU time (s): 28.4427
CPU user time (s): 28.4417
CPU system time (s): 0.000999
CPU usage (%): 99.9664
Max. virtual memory (cumulated for all children) (KiB): 3424

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 28.4417
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 560
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= 8
involuntary context switches= 69

runsolver used 0.024996 second user time and 0.070989 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Fri Apr 27 19:09:51 UTC 2007

IDJOB= 428075
IDBENCH= 20303
IDSOLVER= 198
FILE ID= node11/428075-1177700991

PBS_JOBID= 4698679

Free space on /tmp= 66481 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
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/428075-1177700991/minimarch_fixed /tmp/evaluation/428075-1177700991/instance-428075-1177700991.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-428075-1177700991 -o ROOT/results/node11/solver-428075-1177700991 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428075-1177700991/minimarch_fixed /tmp/evaluation/428075-1177700991/instance-428075-1177700991.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  914d3e80d7a891b747d01777ed9ce8d7

RANDOM SEED= 194323203

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.235
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		: 3000.235
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:       1542904 kB
Buffers:         52892 kB
Cached:         366988 kB
SwapCached:      15592 kB
Active:         242628 kB
Inactive:       201876 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1542904 kB
SwapTotal:     4192956 kB
SwapFree:      4146768 kB
Dirty:            2936 kB
Writeback:           0 kB
Mapped:          30316 kB
Slab:            53968 kB
Committed_AS:  6415420 kB
PageTables:       1848 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= 66481 MiB

End job on node11 on Fri Apr 27 19:10:20 UTC 2007