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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namemps-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-p0548.opb
MD5SUM6f47095f2d417d23ced995954e641689
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 18719
Optimality of the best value was proved NO
Number of terms in the objective function 416
Biggest coefficient in the objective function 11000
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 96797
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 11000
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 96797
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.07
Number of variables548
Total number of constraints724
Number of constraints which are clauses40
Number of constraints which are cardinality constraints (but not clauses)550
Number of constraints which are nor clauses,nor cardinality constraints134
Minimum length of a constraint1
Maximum length of a constraint143

Trace number 10374

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-23 17:56:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9121 boxname=wulflinc12 idbench=917 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6f47095f2d417d23ced995954e641689  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-p0548.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-p0548.opb
IDLAUNCH: 9121
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        941832 kB
Buffers:          6580 kB
Cached:          66996 kB
SwapCached:          0 kB
Active:          18464 kB
Inactive:        58036 kB
HighTotal:      131008 kB
HighFree:        81900 kB
LowTotal:       903652 kB
LowFree:        859932 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10804 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:00:26 (client local time) WITH STATUS 1 IN 259.554 SECONDS
stats: 9121 7 259.554 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...

c Decision: 12464/174694	Time: 99.7978/86400
c got solution with objective value: 71025
c small objective detected

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22155691 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 373 2 364 364 0 9 0
[pid=10986] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-p0548.opb

[startup+10.0016 s]
Raw data (loadavg): 0.89 0.93 0.90 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 29183 0 0 0 932 63 0 0 25 0 1 0 22155691 96296960 17740 4294967295 134512640 135987407 3221224560 3221223248 134811770 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 23510 17740 364 364 0 23146 0
[pid=10986] vsize: 94040
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 94040

[startup+20.0025 s]
Raw data (loadavg): 0.90 0.93 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 29981 0 0 0 1928 65 0 0 25 0 1 0 22155691 98942976 18146 4294967295 134512640 135987407 3221224560 3221223120 134788496 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 24156 18146 364 364 0 23792 0
[pid=10986] vsize: 96624
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 96624

[startup+30.0033 s]
Raw data (loadavg): 0.92 0.93 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 30789 0 0 0 2922 69 0 0 25 0 1 0 22155691 101777408 18725 4294967295 134512640 135987407 3221224560 3221223248 134811770 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 24848 18725 364 364 0 24484 0
[pid=10986] vsize: 99392
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 99392

[startup+40.0041 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 31237 0 0 0 3913 73 0 0 25 0 1 0 22155691 103698432 19074 4294967295 134512640 135987407 3221224560 3221223248 134811964 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 25317 19074 364 364 0 24953 0
[pid=10986] vsize: 101268
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 101268

[startup+50.005 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 31400 0 0 0 4908 75 0 0 25 0 1 0 22155691 104501248 19237 4294967295 134512640 135987407 3221224560 3221223248 134811805 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 25513 19237 364 364 0 25149 0
[pid=10986] vsize: 102052
Current children cumulated CPU time (s) 49.83
Current children cumulated vsize (Kb) 102052

[startup+60.0058 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 31418 0 0 0 5900 78 0 0 25 0 1 0 22155691 104697856 19255 4294967295 134512640 135987407 3221224560 3221223248 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 25561 19255 364 364 0 25197 0
[pid=10986] vsize: 102244
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 102244

[startup+70.0067 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 31439 0 0 0 6893 80 0 0 25 0 1 0 22155691 104697856 19276 4294967295 134512640 135987407 3221224560 3221223376 134824259 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 25561 19276 364 364 0 25197 0
[pid=10986] vsize: 102244
Current children cumulated CPU time (s) 69.73
Current children cumulated vsize (Kb) 102244

[startup+80.0075 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 31890 0 0 0 7889 82 0 0 25 0 1 0 22155691 106557440 19596 4294967295 134512640 135987407 3221224560 3221223248 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 26015 19596 364 364 0 25651 0
[pid=10986] vsize: 104060
Current children cumulated CPU time (s) 79.71
Current children cumulated vsize (Kb) 104060

[startup+90.0083 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 32103 0 0 0 8884 84 0 0 25 0 1 0 22155691 107225088 19776 4294967295 134512640 135987407 3221224560 3221223320 134811681 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 26178 19776 364 364 0 25814 0
[pid=10986] vsize: 104712
Current children cumulated CPU time (s) 89.68
Current children cumulated vsize (Kb) 104712

[startup+100.008 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 32342 0 0 0 9881 86 0 0 25 0 1 0 22155691 108023808 19916 4294967295 134512640 135987407 3221224560 3221223248 134811735 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 26373 19916 364 364 0 26009 0
[pid=10986] vsize: 105492
Current children cumulated CPU time (s) 99.67
Current children cumulated vsize (Kb) 105492

[startup+110.01 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 33131 0 0 0 10875 89 0 0 25 0 1 0 22155691 109895680 20264 4294967295 134512640 135987407 3221224560 3221223248 134811807 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 26830 20264 364 364 0 26466 0
[pid=10986] vsize: 107320
Current children cumulated CPU time (s) 109.64
Current children cumulated vsize (Kb) 107320

[startup+120.011 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 33292 0 0 0 11869 91 0 0 25 0 1 0 22155691 110563328 20392 4294967295 134512640 135987407 3221224560 3221223248 134811729 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 26993 20392 364 364 0 26629 0
[pid=10986] vsize: 107972
Current children cumulated CPU time (s) 119.6
Current children cumulated vsize (Kb) 107972

[startup+130.012 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 33421 0 0 0 12864 93 0 0 25 0 1 0 22155691 110960640 20455 4294967295 134512640 135987407 3221224560 3221223308 134811686 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 27090 20455 364 364 0 26726 0
[pid=10986] vsize: 108360
Current children cumulated CPU time (s) 129.57
Current children cumulated vsize (Kb) 108360

[startup+140.012 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 33511 0 0 0 13856 96 0 0 25 0 1 0 22155691 111226880 20512 4294967295 134512640 135987407 3221224560 3221223248 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 27155 20512 364 364 0 26791 0
[pid=10986] vsize: 108620
Current children cumulated CPU time (s) 139.52
Current children cumulated vsize (Kb) 108620

[startup+150.012 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 33682 0 0 0 14849 99 0 0 25 0 1 0 22155691 112156672 20650 4294967295 134512640 135987407 3221224560 3221223408 134790054 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 27382 20650 364 364 0 27018 0
[pid=10986] vsize: 109528
Current children cumulated CPU time (s) 149.48
Current children cumulated vsize (Kb) 109528

[startup+160.013 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 35537 0 0 0 15838 105 0 0 25 0 1 0 22155691 112918528 22440 4294967295 134512640 135987407 3221224560 3221171616 134856616 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 27568 22440 364 364 0 27204 0
[pid=10986] vsize: 110272
Current children cumulated CPU time (s) 159.43
Current children cumulated vsize (Kb) 110272

[startup+170.014 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 64101 0 0 0 16779 164 0 0 25 0 1 0 22155691 197267456 39782 4294967295 134512640 135987407 3221224560 3221121324 134636959 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 48161 39782 364 364 0 47797 0
[pid=10986] vsize: 192644
Current children cumulated CPU time (s) 169.43
Current children cumulated vsize (Kb) 192644

[startup+180.015 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 106939 0 0 0 17687 251 0 0 25 0 1 0 22155691 329555968 60423 4294967295 134512640 135987407 3221224560 3221182172 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 80458 60423 364 364 0 80094 0
[pid=10986] vsize: 321832
Current children cumulated CPU time (s) 179.38
Current children cumulated vsize (Kb) 321832

[startup+190.016 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 125130 0 0 0 18647 290 0 0 25 0 1 0 22155691 387035136 78396 4294967295 134512640 135987407 3221224560 3221145072 134856581 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 94491 78396 364 364 0 94127 0
[pid=10986] vsize: 377964
Current children cumulated CPU time (s) 189.37
Current children cumulated vsize (Kb) 377964

[startup+200.016 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 151309 0 0 0 19591 344 0 0 25 0 1 0 22155691 566956032 104088 4294967295 134512640 135987407 3221224560 3221187852 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 138417 104090 364 364 0 138053 0
[pid=10986] vsize: 553668
Current children cumulated CPU time (s) 199.35
Current children cumulated vsize (Kb) 553668

[startup+210.015 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 209915 0 0 0 20471 459 0 0 25 0 1 0 22155691 650383360 118804 4294967295 134512640 135987407 3221224560 3221198080 134892994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 158785 118804 364 364 0 158421 0
[pid=10986] vsize: 635140
Current children cumulated CPU time (s) 209.3
Current children cumulated vsize (Kb) 635140

[startup+220.015 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 226303 0 0 0 21435 494 0 0 25 0 1 0 22155691 705699840 134997 4294967295 134512640 135987407 3221224560 3221213048 134639067 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 172290 134997 364 364 0 171926 0
[pid=10986] vsize: 689160
Current children cumulated CPU time (s) 219.29
Current children cumulated vsize (Kb) 689160

[startup+230.016 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 10986
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 244986 0 0 0 22393 533 0 0 25 0 1 0 22155691 729894912 153455 4294967295 134512640 135987407 3221224560 3221139408 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 178197 153456 364 364 0 177833 0
[pid=10986] vsize: 712788
Current children cumulated CPU time (s) 229.26
Current children cumulated vsize (Kb) 712788

[startup+240.016 s]
Raw data (loadavg): 0.99 0.96 0.91 2/56 10987
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 261991 0 0 0 23355 570 0 0 25 0 1 0 22155691 802258944 170256 4294967295 134512640 135987407 3221224560 3221153760 134877708 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 195864 170256 364 364 0 195500 0
[pid=10986] vsize: 783456
Current children cumulated CPU time (s) 239.25
Current children cumulated vsize (Kb) 783456

[startup+250.016 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 11041
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 278451 0 0 0 24315 608 0 0 25 0 1 0 22155691 823615488 186518 4294967295 134512640 135987407 3221224560 3221167580 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10986/statm): 201078 186518 364 364 0 200714 0
[pid=10986] vsize: 804312
Current children cumulated CPU time (s) 249.23
Current children cumulated vsize (Kb) 804312

[startup+260.017 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 11041
Raw data (/proc/10986/stat): 10986 (pb2sat) R 10985 10986 4060 0 -1 0 285129 0 0 0 25286 636 0 0 25 0 1 0 22155691 457900032 111354 4294967295 134512640 135987407 3221224560 3221223408 134884004 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10986/statm): 111792 111354 364 364 0 111428 0
[pid=10986] vsize: 447168
Current children cumulated CPU time (s) 259.22
Current children cumulated vsize (Kb) 447168
One traced child (pid=10986) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 260.347
CPU time (s): 259.554
CPU user time (s): 252.949
CPU system time (s): 6.605
CPU usage (%): 99.6954
Max. virtual memory (cumulated for all children) (Kb): 804312

Verifier Data

ERROR: no interpretation found !