Trace number 296637

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
MXC 2007-02-08SAT 43.6544 43.6796

General information on the benchmark

Namerandom/OnTreshold/7SAT/v45/
unif-k7-r89-v45-c4005-S1566131367-09.SAT.shuffled.cnf
MD5SUM3323355938df6013ebfd95023b20854d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.226965
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses4005
Sum of the clauses size28035
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54005

Solver Data (download as text)

43.62/43.67	c MXC attempting /tmp/evaluation/296637-1171826230/instance-296637-1171826230.cnf
43.62/43.67	c 0 assignments made, starting to guess now
43.62/43.67	c ===================================[MXC]=====================================
43.62/43.67	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
43.62/43.67	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
43.62/43.67	c =============================================================================
43.62/43.67	c |         0 |    4005    28035 |    1335       0       0     nan |  0.000 % |
43.62/43.67	c |       100 |    4005    28035 |    1468     100    1782    17.8 |  0.000 % |
43.62/43.67	c |       251 |    4005    28035 |    1615     251    4271    17.0 |  0.000 % |
43.62/43.67	c |       476 |    4005    28035 |    1776     476    8129    17.1 |  0.000 % |
43.62/43.67	c |       813 |    4005    28035 |    1954     813   13957    17.2 |  0.000 % |
43.62/43.67	c |      1320 |    4005    28035 |    2150    1320   22457    17.0 |  0.000 % |
43.62/43.67	c |      2080 |    4005    28035 |    2365    2080   34740    16.7 |  0.000 % |
43.62/43.67	c |      3220 |    4005    28035 |    2601    2037   33566    16.5 |  0.000 % |
43.62/43.67	c |      4929 |    4005    28035 |    2861    2445   40595    16.6 |  0.000 % |
43.62/43.67	c |      7491 |    4005    28035 |    3147    2145   34042    15.9 |  0.000 % |
43.62/43.67	c |     11335 |    4005    28035 |    3462    2840   44861    15.8 |  0.000 % |
43.62/43.67	c |     17101 |    4005    28035 |    3808    3412   52804    15.5 |  0.000 % |
43.62/43.67	c |     25751 |    4005    28035 |    4189    2541   38768    15.3 |  0.000 % |
43.62/43.67	c |     38726 |    4005    28035 |    4608    2947   44424    15.1 |  0.000 % |
43.62/43.67	c |     58189 |    4005    28035 |    5069    3979   57476    14.4 |  0.000 % |
43.62/43.67	c |     87382 |    4005    28035 |    5576    2758   42598    15.4 |  0.000 % |
43.62/43.67	c |    131171 |    4005    28035 |    6134    4732   72145    15.2 |  0.000 % |
43.62/43.67	c |    196857 |    4005    28035 |    6747    6026   88982    14.8 |  0.000 % |
43.62/43.67	c |    295383 |    4005    28035 |    7422    6744   95738    14.2 |  0.000 % |
43.62/43.67	c |    443172 |    4005    28035 |    8164    6127   88084    14.4 |  0.000 % |
43.62/43.67	c |    664855 |    4005    28035 |    8981    7463  106519    14.3 |  0.000 % |
43.62/43.67	c 43.650s elapsed
43.62/43.67	c restarts: 20
43.62/43.67	c decisions: 752633
43.62/43.67	c propagations: 5457241
43.62/43.67	c conflicts: 705423
43.62/43.67	s SATISFIABLE
43.62/43.67	v -40 -23 -34 -2 21 -12 -43 -10 1 15 8 -32 33 6 -5 -16 39 9 11 42 -17 18 38 -14 -24 -41 31 -29 7 25 -27 -44 -30 28 -13 37 -36 20 -19 -22 4 45 3 35 26 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node67/watcher-296637-1171826230 -o ROOT/results/node67/solver-296637-1171826230 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/296637-1171826230/mxc /tmp/evaluation/296637-1171826230/instance-296637-1171826230.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: 0.08 0.25 0.71 3/64 30113
/proc/meminfo: memFree=580024/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=1196 CPUtime=0
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 165 0 0 0 0 0 0 0 18 0 1 0 202581127 1224704 149 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 299 149 57 122 0 173 0

[startup+0.107338 s]
/proc/loadavg: 0.08 0.25 0.71 3/64 30113
/proc/meminfo: memFree=580024/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=1468 CPUtime=0.1
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 233 0 0 0 10 0 0 0 18 0 1 0 202581127 1503232 215 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134531190 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 367 215 67 122 0 241 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1468

[startup+0.51538 s]
/proc/loadavg: 0.08 0.25 0.71 3/64 30113
/proc/meminfo: memFree=580024/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=1596 CPUtime=0.51
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 279 0 0 0 51 0 0 0 21 0 1 0 202581127 1634304 261 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134529840 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 399 261 67 122 0 273 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1596

[startup+1.33547 s]
/proc/loadavg: 0.15 0.26 0.71 2/65 30114
/proc/meminfo: memFree=579056/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=1728 CPUtime=1.33
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 316 0 0 0 133 0 0 0 25 0 1 0 202581127 1769472 298 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 432 298 67 122 0 306 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1728

[startup+2.97164 s]
/proc/loadavg: 0.15 0.26 0.71 2/65 30114
/proc/meminfo: memFree=578800/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=1972 CPUtime=2.96
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 359 0 0 0 296 0 0 0 25 0 1 0 202581127 2019328 341 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134534744 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 493 341 67 122 0 367 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1972

[startup+6.26498 s]
/proc/loadavg: 0.22 0.27 0.71 2/65 30114
/proc/meminfo: memFree=578544/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2204 CPUtime=6.26
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 419 0 0 0 626 0 0 0 25 0 1 0 202581127 2256896 401 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134530169 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 551 401 67 122 0 425 0
Current children cumulated CPU time (s) 6.26
Current children cumulated vsize (KiB) 2204

[startup+12.7197 s]
/proc/loadavg: 0.28 0.29 0.71 2/65 30114
/proc/meminfo: memFree=578224/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2324 CPUtime=12.71
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 471 0 0 0 1271 0 0 0 25 0 1 0 202581127 2379776 453 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 581 453 67 122 0 455 0
Current children cumulated CPU time (s) 12.71
Current children cumulated vsize (KiB) 2324

[startup+25.62 s]
/proc/loadavg: 0.39 0.31 0.71 2/65 30114
/proc/meminfo: memFree=577904/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2648 CPUtime=25.6
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 549 0 0 0 2560 0 0 0 25 0 1 0 202581127 2711552 531 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 662 531 67 122 0 536 0
Current children cumulated CPU time (s) 25.6
Current children cumulated vsize (KiB) 2648

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

[startup+26.2361 s]
/proc/loadavg: 0.44 0.32 0.72 2/65 30114
/proc/meminfo: memFree=577904/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2648 CPUtime=26.22
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 549 0 0 0 2622 0 0 0 25 0 1 0 202581127 2711552 531 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 662 531 67 122 0 536 0
Current children cumulated CPU time (s) 26.22
Current children cumulated vsize (KiB) 2648

[startup+32.7928 s]
/proc/loadavg: 0.49 0.33 0.72 2/65 30114
/proc/meminfo: memFree=577840/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2760 CPUtime=32.77
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 561 0 0 0 3277 0 0 0 25 0 1 0 202581127 2826240 543 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134534732 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 690 543 67 122 0 564 0
Current children cumulated CPU time (s) 32.77
Current children cumulated vsize (KiB) 2760

[startup+39.3464 s]
/proc/loadavg: 0.53 0.34 0.72 2/65 30114
/proc/meminfo: memFree=577840/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2760 CPUtime=39.32
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 565 0 0 0 3932 0 0 0 25 0 1 0 202581127 2826240 547 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519927 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 690 547 67 122 0 564 0
Current children cumulated CPU time (s) 39.32
Current children cumulated vsize (KiB) 2760

[startup+40.9866 s]
/proc/loadavg: 0.56 0.35 0.72 2/65 30114
/proc/meminfo: memFree=577840/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2760 CPUtime=40.96
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 576 0 0 0 4096 0 0 0 25 0 1 0 202581127 2826240 558 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 690 558 67 122 0 564 0
Current children cumulated CPU time (s) 40.96
Current children cumulated vsize (KiB) 2760

[startup+42.6228 s]
/proc/loadavg: 0.56 0.35 0.72 2/65 30114
/proc/meminfo: memFree=577776/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2760 CPUtime=42.6
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 576 0 0 0 4260 0 0 0 25 0 1 0 202581127 2826240 558 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 690 558 67 122 0 564 0
Current children cumulated CPU time (s) 42.6
Current children cumulated vsize (KiB) 2760

[startup+43.4429 s]
/proc/loadavg: 0.56 0.35 0.72 2/65 30114
/proc/meminfo: memFree=577776/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2760 CPUtime=43.42
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 576 0 0 0 4342 0 0 0 25 0 1 0 202581127 2826240 558 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519987 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 690 558 67 122 0 564 0
Current children cumulated CPU time (s) 43.42
Current children cumulated vsize (KiB) 2760

[startup+43.6469 s]
/proc/loadavg: 0.56 0.35 0.72 2/65 30114
/proc/meminfo: memFree=577776/2055920 swapFree=4183772/4192956
[pid=30113] ppid=30111 vsize=2760 CPUtime=43.62
/proc/30113/stat : 30113 (mxc) R 30111 30113 29610 0 -1 4194304 576 0 0 0 4362 0 0 0 25 0 1 0 202581127 2826240 558 18446744073709551615 134512640 135013041 4294956720 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30113/statm: 690 558 67 122 0 564 0
Current children cumulated CPU time (s) 43.62
Current children cumulated vsize (KiB) 2760

Child status: 10
Real time (s): 43.6796
CPU time (s): 43.6544
CPU user time (s): 43.6484
CPU system time (s): 0.005999
CPU usage (%): 99.9423
Max. virtual memory (cumulated for all children) (KiB): 2760

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 43.6484
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 578
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= 87

runsolver used 0.036994 second user time and 0.083987 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Sun Feb 18 19:17:11 UTC 2007

IDJOB= 296637
IDBENCH= 19942
IDSOLVER= 107
FILE ID= node67/296637-1171826230

PBS_JOBID= 3839698

Free space on /tmp= 66563 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v45/unif-k7-r89-v45-c4005-S1566131367-09.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/296637-1171826230/mxc /tmp/evaluation/296637-1171826230/instance-296637-1171826230.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-296637-1171826230 -o ROOT/results/node67/solver-296637-1171826230 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/296637-1171826230/mxc /tmp/evaluation/296637-1171826230/instance-296637-1171826230.cnf            

META MD5SUM SOLVER= fd459248d3e92e664505cc2f0f683bf4
MD5SUM BENCH=  3323355938df6013ebfd95023b20854d

RANDOM SEED= 739912842

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.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		: 3000.236
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		: 3000.236
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:        580432 kB
Buffers:         49488 kB
Cached:        1305408 kB
SwapCached:       3608 kB
Active:         736932 kB
Inactive:       627916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        580432 kB
SwapTotal:     4192956 kB
SwapFree:      4183772 kB
Dirty:             708 kB
Writeback:           0 kB
Mapped:          15352 kB
Slab:            96584 kB
Committed_AS:   641596 kB
PageTables:       1452 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= 66563 MiB

End job on node67 on Sun Feb 18 19:17:59 UTC 2007