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-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-air05.opb
MD5SUM02b9fdfc96e8b88ab6df67318e21abbc
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 39630
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.2
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 10059

Launcher Data

LAUNCH ON wulflinc7 THE 2005-09-23 16:45:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8819 boxname=wulflinc7 idbench=615 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  02b9fdfc96e8b88ab6df67318e21abbc  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-air05.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-air05.opb
IDLAUNCH: 8819
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        920032 kB
Buffers:         12476 kB
Cached:          84696 kB
SwapCached:          0 kB
Active:          47196 kB
Inactive:        52912 kB
HighTotal:      131008 kB
HighFree:        46004 kB
LowTotal:       903652 kB
LowFree:        874028 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8844 kB
Committed_AS:    63640 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:46:58 (client local time) WITH STATUS 1 IN 111.251 SECONDS
stats: 8819 7 111.251 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 45244
c big objective detected
c trying from 0 to 511

	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/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 21743616 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 373 2 364 364 0 9 0
[pid=10076] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-air05.opb

[startup+10.002 s]
Raw data (loadavg): 0.92 0.95 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 14291 0 0 0 960 35 0 0 25 0 1 0 21743616 44490752 8510 4294967295 134512640 135987407 3221224560 3221223248 134812018 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 10862 8510 364 364 0 10498 0
[pid=10076] vsize: 43448
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 43448

[startup+20.0036 s]
Raw data (loadavg): 0.93 0.95 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 29172 0 0 0 1911 74 0 0 25 0 1 0 21743616 96038912 17793 4294967295 134512640 135987407 3221224560 3220294348 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 23447 17793 364 364 0 23083 0
[pid=10076] vsize: 93788
Current children cumulated CPU time (s) 19.85
Current children cumulated vsize (Kb) 93788

[startup+30.0042 s]
Raw data (loadavg): 0.94 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 59637 0 0 0 2840 141 0 0 25 0 1 0 21743616 192405504 37017 4294967295 134512640 135987407 3221224560 3219409868 134637029 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 46974 37017 364 364 0 46610 0
[pid=10076] vsize: 187896
Current children cumulated CPU time (s) 29.81
Current children cumulated vsize (Kb) 187896

[startup+40.0039 s]
Raw data (loadavg): 0.95 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 90905 0 0 0 3769 210 0 0 25 0 1 0 21743616 276516864 58338 4294967295 134512640 135987407 3221224560 3219933644 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 67509 58338 364 364 0 67145 0
[pid=10076] vsize: 270036
Current children cumulated CPU time (s) 39.79
Current children cumulated vsize (Kb) 270036

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 119460 0 0 0 4702 275 0 0 25 0 1 0 21743616 384327680 74383 4294967295 134512640 135987407 3221224560 3220315088 134887307 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 93830 74383 364 364 0 93466 0
[pid=10076] vsize: 375320
Current children cumulated CPU time (s) 49.77
Current children cumulated vsize (Kb) 375320

[startup+60.0051 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 162452 0 0 0 5611 361 0 0 25 0 1 0 21743616 525516800 97756 4294967295 134512640 135987407 3221224560 3218914732 135500012 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 128300 97756 364 364 0 127936 0
[pid=10076] vsize: 513200
Current children cumulated CPU time (s) 59.72
Current children cumulated vsize (Kb) 513200

[startup+70.0058 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 180301 0 0 0 6569 402 0 0 25 0 1 0 21743616 550387712 115357 4294967295 134512640 135987407 3221224560 3220729804 135480487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 134372 115357 364 364 0 134008 0
[pid=10076] vsize: 537488
Current children cumulated CPU time (s) 69.71
Current children cumulated vsize (Kb) 537488

[startup+80.0064 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 220773 0 0 0 7477 490 0 0 25 0 1 0 21743616 674299904 131036 4294967295 134512640 135987407 3221224560 3220838356 134865975 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 164624 131036 364 364 0 164260 0
[pid=10076] vsize: 658496
Current children cumulated CPU time (s) 79.67
Current children cumulated vsize (Kb) 658496

[startup+90.0061 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 236114 0 0 0 8443 523 0 0 25 0 1 0 21743616 730562560 146167 4294967295 134512640 135987407 3221224560 3219146096 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 178360 146167 364 364 0 177996 0
[pid=10076] vsize: 713440
Current children cumulated CPU time (s) 89.66
Current children cumulated vsize (Kb) 713440

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 254502 0 0 0 9403 561 0 0 25 0 1 0 21743616 757596160 164309 4294967295 134512640 135987407 3221224560 3219912560 134887796 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 184960 164309 364 364 0 184596 0
[pid=10076] vsize: 739840
Current children cumulated CPU time (s) 99.64
Current children cumulated vsize (Kb) 739840

[startup+110.007 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 10076
Raw data (/proc/10076/stat): 10076 (pb2sat) R 10075 10076 4059 0 -1 0 263182 0 0 0 10377 585 0 0 25 0 1 0 21743616 663973888 149680 4294967295 134512640 135987407 3221224560 3221223424 134875184 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10076/statm): 162103 149680 364 364 0 161739 0
[pid=10076] vsize: 648412
Current children cumulated CPU time (s) 109.62
Current children cumulated vsize (Kb) 648412
One traced child (pid=10076) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 111.636
CPU time (s): 111.251
CPU user time (s): 105.099
CPU system time (s): 6.15206
CPU usage (%): 99.6552
Max. virtual memory (cumulated for all children) (Kb): 739840

Verifier Data

ERROR: no interpretation found !