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).
  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

Namenormalized-opb/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos17.opb
MD5SUM510c7f71a2644dcf876297008b35f617
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 20977859
Optimality of the best value was proved NO
Number of terms in the objective function 2126
Biggest coefficient in the objective function 27663360
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 110500348
Number of bits of the sum of numbers in the objective function 27
Biggest number in a constraint 1677721600000000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 40265324766820451
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1240.29
Number of variables3115
Total number of constraints971
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)300
Number of constraints which are nor clauses,nor cardinality constraints671
Minimum length of a constraint1
Maximum length of a constraint780

Trace number 42603 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 12:34:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25824 boxname=wulflinc4 idbench=1124 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  510c7f71a2644dcf876297008b35f617  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-neos17.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-neos17.opb
IDLAUNCH: 25824
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        663984 kB
Buffers:         30580 kB
Cached:         317608 kB
SwapCached:        924 kB
Active:          28176 kB
Inactive:       322116 kB
HighTotal:      131008 kB
HighFree:         8484 kB
LowTotal:       903652 kB
LowFree:        655500 kB
SwapTotal:     2097136 kB
SwapFree:      2095228 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14576 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 12:36:13 (client local time) WITH STATUS 1 IN 105.948 SECONDS
stats: 25824 7 105.948 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.93 0.98 0.91 1/54 25731
Raw data (stat): 25731 (runsolver) R 25730 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970790543 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0013 s]
Raw data (loadavg): 0.94 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 26352 0 0 0 937 61 0 0 25 0 1 0 970790543 77037568 15438 4294967295 134512640 135730672 3221224576 3221175932 134786008 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18808 15438 301 301 0 18507 0
vsize: 75232
[startup+20.0015 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 52839 0 0 0 1878 120 0 0 25 0 1 0 970790543 152080384 30948 4294967295 134512640 135730672 3221224576 3221170376 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37129 30949 301 301 0 36828 0
vsize: 148516
[startup+30.0017 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 91221 0 0 0 2795 203 0 0 25 0 1 0 970790543 266989568 47637 4294967295 134512640 135730672 3221224576 3221139752 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65183 47638 301 301 0 64882 0
vsize: 260732
[startup+40.0029 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 103894 0 0 0 3765 233 0 0 25 0 1 0 970790543 304500736 60085 4294967295 134512640 135730672 3221224576 3221163416 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74341 60085 301 301 0 74040 0
vsize: 297364
[startup+50.0032 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 144428 0 0 0 4688 310 0 0 25 0 1 0 970790543 501493760 99426 4294967295 134512640 135730672 3221224576 3221166992 135282712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 122435 99426 301 301 0 122134 0
vsize: 489740
[startup+60.0036 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 177287 0 0 0 5617 382 0 0 25 0 1 0 970790543 530849792 90141 4294967295 134512640 135730672 3221224576 3221185200 134611155 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 129602 90141 301 301 0 129301 0
vsize: 518408
[startup+70.0042 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 188233 0 0 0 6589 409 0 0 25 0 1 0 970790543 564404224 100881 4294967295 134512640 135730672 3221224576 3221167084 135291222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137794 100882 301 301 0 137493 0
vsize: 551176
[startup+80.0037 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 201068 0 0 0 7559 439 0 0 25 0 1 0 970790543 564404224 113471 4294967295 134512640 135730672 3221224576 3221167148 134608696 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137794 113471 301 301 0 137493 0
vsize: 551176
[startup+90.004 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 218342 0 0 0 8520 478 0 0 25 0 1 0 970790543 583606272 130510 4294967295 134512640 135730672 3221224576 3221107632 135282208 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142482 130510 301 301 0 142181 0
vsize: 569928
[startup+100.004 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 232525 0 0 0 9490 509 0 0 25 0 1 0 970790543 935165952 144474 4294967295 134512640 135730672 3221224576 3221098464 134775419 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 228312 144476 301 301 0 228011 0
vsize: 913248
[startup+105.962 s]
Raw data (loadavg): 0.98 0.98 0.91 1/53 25731
Raw data (stat): 25731 (pb2sat-v2) R 25730 21152 21151 0 -1 0 232525 0 0 0 9490 509 0 0 25 0 1 0 970790543 935165952 144474 4294967295 134512640 135730672 3221224576 3221098464 134775419 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 228312 144476 301 301 0 228011 0
vsize: 0

Child status: 1
Real time (s): 105.962
CPU time (s): 105.948
CPU user time (s): 100.39
CPU system time (s): 5.55815
CPU usage (%): 99.9869
Max. virtual memory (Kb): 913248
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####