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/miplib3/normalized-mps-v2-13-7-misc07.opb
MD5SUM54df16ee65da54d5975ffedee80d2bb9
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1408128
Optimality of the best value was proved NO
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576
Number of bits of the biggest number in a constraint 21
Biggest sum of numbers in a constraint 11486079
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.03
Number of variables280
Total number of constraints471
Number of constraints which are clauses127
Number of constraints which are cardinality constraints (but not clauses)272
Number of constraints which are nor clauses,nor cardinality constraints72
Minimum length of a constraint1
Maximum length of a constraint253

Trace number 10471

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 18:33:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9232 boxname=wulflinc1 idbench=1028 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  54df16ee65da54d5975ffedee80d2bb9  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc07.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc07.opb
IDLAUNCH: 9232
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        879920 kB
Buffers:         13908 kB
Cached:         123316 kB
SwapCached:          0 kB
Active:          76900 kB
Inactive:        63304 kB
HighTotal:      131008 kB
HighFree:        11172 kB
LowTotal:       903652 kB
LowFree:        868748 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             8996 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 18:35:33 (client local time) WITH STATUS 1 IN 105.327 SECONDS
stats: 9232 7 105.327 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	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/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22400851 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 373 2 364 364 0 9 0
[pid=11539] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc07.opb

[startup+10.0016 s]
Raw data (loadavg): 0.92 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 32897 0 0 0 927 69 0 0 25 0 1 0 22400851 99860480 21742 4294967295 134512640 135987407 3221224560 3221167572 135479892 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 24380 21742 364 364 0 24016 0
[pid=11539] vsize: 97520
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97520

[startup+20.0024 s]
Raw data (loadavg): 0.93 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 65028 0 0 0 1860 133 0 0 25 0 1 0 22400851 196767744 42645 4294967295 134512640 135987407 3221224560 3221161856 134639105 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 48039 42645 364 364 0 47675 0
[pid=11539] vsize: 192156
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192156

[startup+30.0032 s]
Raw data (loadavg): 0.94 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 107619 0 0 0 2766 225 0 0 25 0 1 0 22400851 362332160 63043 4294967295 134512640 135987407 3221224560 3221186172 135484976 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 88460 63043 364 364 0 88096 0
[pid=11539] vsize: 353840
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 353840

[startup+40.003 s]
Raw data (loadavg): 0.95 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 128394 0 0 0 3722 266 0 0 25 0 1 0 22400851 389636096 83568 4294967295 134512640 135987407 3221224560 3221189596 135480425 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 95126 83568 364 364 0 94762 0
[pid=11539] vsize: 380504
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 380504

[startup+50.0038 s]
Raw data (loadavg): 0.96 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 173744 0 0 0 4626 356 0 0 25 0 1 0 22400851 533393408 109296 4294967295 134512640 135987407 3221224560 3221209260 134765288 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 130223 109296 364 364 0 129859 0
[pid=11539] vsize: 520892
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 520892

[startup+60.0036 s]
Raw data (loadavg): 0.96 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 211265 0 0 0 5544 437 0 0 25 0 1 0 22400851 683831296 122079 4294967295 134512640 135987407 3221224560 3221156656 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 166951 122079 364 364 0 166587 0
[pid=11539] vsize: 667804
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 667804

[startup+70.0044 s]
Raw data (loadavg): 0.97 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 223568 0 0 0 6518 463 0 0 25 0 1 0 22400851 684236800 134161 4294967295 134512640 135987407 3221224560 3221187380 134641997 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11539/statm): 167050 134161 364 364 0 166686 0
[pid=11539] vsize: 668200
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 668200

[startup+80.0052 s]
Raw data (loadavg): 0.97 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 236493 0 0 0 7494 487 0 0 25 0 1 0 22400851 684236800 146858 4294967295 134512640 135987407 3221224560 3221179024 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11539/statm): 167050 146858 364 364 0 166686 0
[pid=11539] vsize: 668200
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 668200

[startup+90.0049 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 247136 0 0 0 8474 507 0 0 25 0 1 0 22400851 736194560 157321 4294967295 134512640 135987407 3221224560 3221177200 134856505 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11539/statm): 179735 157321 364 364 0 179371 0
[pid=11539] vsize: 718940
Current children cumulated CPU time (s) 89.81
Current children cumulated vsize (Kb) 718940

[startup+100.005 s]
Raw data (loadavg): 0.98 0.97 0.94 2/55 11539
Raw data (/proc/11539/stat): 11539 (pb2sat) R 11538 11539 4704 0 -1 0 261996 0 0 0 9442 539 0 0 25 0 1 0 22400851 744947712 171953 4294967295 134512640 135987407 3221224560 3221183488 135335083 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11539/statm): 181872 171953 364 364 0 181508 0
[pid=11539] vsize: 727488
Current children cumulated CPU time (s) 99.81
Current children cumulated vsize (Kb) 727488
One traced child (pid=11539) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 105.517
CPU time (s): 105.327
CPU user time (s): 99.5789
CPU system time (s): 5.74813
CPU usage (%): 99.8197
Max. virtual memory (cumulated for all children) (Kb): 727488

Verifier Data

ERROR: no interpretation found !