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-qap10.opb
MD5SUM1c2ccb44cf4c8d63886f263017961035
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 190
Optimality of the best value was proved NO
Number of terms in the objective function 52200
Biggest coefficient in the objective function 26214400
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 24146585100
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 26214400
Number of bits of the biggest number in a constraint 25
Biggest sum of numbers in a constraint 24146585100
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.22
Number of variables83000
Total number of constraints1820
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1820
Minimum length of a constraint200
Maximum length of a constraint200

Trace number 42619 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 12:54:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25838 boxname=wulflinc3 idbench=1138 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1c2ccb44cf4c8d63886f263017961035  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-qap10.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-qap10.opb
IDLAUNCH: 25838
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        648472 kB
Buffers:         23620 kB
Cached:         339836 kB
SwapCached:        820 kB
Active:          39272 kB
Inactive:       326352 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        648220 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14704 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 12:57:08 (client local time) WITH STATUS 1 IN 153.753 SECONDS
stats: 25838 7 153.753 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): 0.92 0.95 0.90 2/54 22144
Raw data (stat): 22144 (runsolver) R 22143 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970912278 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+10.0005 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 2219 0 0 0 994 5 0 0 25 0 1 0 970912278 8093696 1542 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1976 1542 301 301 0 1675 0
vsize: 7904
[startup+20.0014 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 2746 0 0 0 1992 7 0 0 25 0 1 0 970912278 9445376 2061 4294967295 134512640 135730672 3221224576 3221221664 134561677 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2306 2061 301 301 0 2005 0
vsize: 9224
[startup+30.0022 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 3881 0 0 0 2989 10 0 0 25 0 1 0 970912278 13414400 2484 4294967295 134512640 135730672 3221224576 3221221664 134561675 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3275 2484 301 301 0 2974 0
vsize: 13100
[startup+40.0031 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 4147 0 0 0 3988 11 0 0 25 0 1 0 970912278 14090240 2745 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3440 2745 301 301 0 3139 0
vsize: 13760
[startup+50.0039 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 4405 0 0 0 4987 12 0 0 25 0 1 0 970912278 14766080 2999 4294967295 134512640 135730672 3221224576 3221221664 134561688 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3605 2999 301 301 0 3304 0
vsize: 14420
[startup+60.0037 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 4638 0 0 0 5986 13 0 0 25 0 1 0 970912278 15441920 3228 4294967295 134512640 135730672 3221224576 3221221664 134561656 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3770 3228 301 301 0 3469 0
vsize: 15080
[startup+70.0047 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 24596 0 0 0 6940 60 0 0 25 0 1 0 970912278 74932224 13490 4294967295 134512640 135730672 3221224576 3221221552 134540018 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18294 13490 301 301 0 17993 0
vsize: 73176
[startup+80.0056 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 52248 0 0 0 7875 124 0 0 25 0 1 0 970912278 158769152 30146 4294967295 134512640 135730672 3221224576 3221140528 135109362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 38762 30146 301 301 0 38461 0
vsize: 155048
[startup+90.0054 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 92107 0 0 0 8789 210 0 0 25 0 1 0 970912278 273002496 48288 4294967295 134512640 135730672 3221224576 3221201820 135301580 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 66651 48288 301 301 0 66350 0
vsize: 266604
[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 108462 0 0 0 9753 247 0 0 25 0 1 0 970912278 311963648 64365 4294967295 134512640 135730672 3221224576 3221174432 134548962 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 76163 64365 301 301 0 75862 0
vsize: 304652
[startup+110.007 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 149935 0 0 0 10669 330 0 0 25 0 1 0 970912278 444915712 87240 4294967295 134512640 135730672 3221224576 3221150272 134743184 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 108622 87240 301 301 0 108321 0
vsize: 434488
[startup+120.009 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 186266 0 0 0 11589 410 0 0 25 0 1 0 970912278 579133440 98779 4294967295 134512640 135730672 3221224576 3221189776 134546498 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 141390 98779 301 301 0 141089 0
vsize: 565560
[startup+130.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 202666 0 0 0 12549 450 0 0 25 0 1 0 970912278 579133440 114883 4294967295 134512640 135730672 3221224576 3221197220 134612339 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 141390 114883 301 301 0 141089 0
vsize: 565560
[startup+140.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 220312 0 0 0 13507 492 0 0 25 0 1 0 970912278 584675328 132234 4294967295 134512640 135730672 3221224576 3221163116 135291144 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142743 132234 301 301 0 142442 0
vsize: 570972
[startup+150.01 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 240236 0 0 0 14448 551 0 0 25 0 1 0 970912278 283930624 69157 4294967295 134512640 135730672 3221224576 3221222832 135282716 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 69319 69157 301 301 0 69018 0
vsize: 277276
[startup+153.766 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 22144
Raw data (stat): 22144 (pb2sat-v2) R 22143 20224 20223 0 -1 0 240236 0 0 0 14448 551 0 0 25 0 1 0 970912278 283930624 69157 4294967295 134512640 135730672 3221224576 3221222832 135282716 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 69319 69157 301 301 0 69018 0
vsize: 0

Child status: 1
Real time (s): 153.766
CPU time (s): 153.753
CPU user time (s): 148.086
CPU system time (s): 5.66614
CPU usage (%): 99.9913
Max. virtual memory (Kb): 570972
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####