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/MIPLIB/miplib/normalized-mps-v2-20-10-bell3b.opb
MD5SUMefb36546b6b37df68ff339bb766886b9
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 1780
Biggest coefficient in the objective function 50331648000000000
Number of bits for the biggest coefficient in the objective function 56
Sum of the numbers in the objective function 1076758128151185266
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 50331648000000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 1076758128151185266
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1225.11
Number of variables2283
Total number of constraints194
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)39
Number of constraints which are nor clauses,nor cardinality constraints133
Minimum length of a constraint1
Maximum length of a constraint195

Trace number 42382 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 06:15:58 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25601 boxname=wulflinc4 idbench=901 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  efb36546b6b37df68ff339bb766886b9  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-bell3b.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-bell3b.opb
IDLAUNCH: 25601
/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:        704284 kB
Buffers:         34356 kB
Cached:         274100 kB
SwapCached:        944 kB
Active:          27292 kB
Inactive:       283280 kB
HighTotal:      131008 kB
HighFree:         1176 kB
LowTotal:       903652 kB
LowFree:        703108 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14152 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:18:36 (client local time) WITH STATUS 1 IN 158.183 SECONDS
stats: 25601 7 158.183 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 59972996232503928
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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): 0.91 0.95 0.90 2/54 22801
Raw data (stat): 22801 (runsolver) R 22800 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968519396 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0006 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 25927 0 0 0 943 56 0 0 25 0 1 0 968519396 77758464 15013 4294967295 134512640 135730672 3221224576 3221197068 135301630 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18984 15014 301 301 0 18683 0
vsize: 75936
[startup+20.0017 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 50962 0 0 0 1895 103 0 0 25 0 1 0 968519396 152289280 28828 4294967295 134512640 135730672 3221224576 3221192660 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37180 28828 301 301 0 36879 0
vsize: 148720
[startup+30.002 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 87295 0 0 0 2823 175 0 0 25 0 1 0 968519396 314290176 55768 4294967295 134512640 135730672 3221224576 3221195472 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 76731 55773 301 301 0 76430 0
vsize: 306924
[startup+40.0026 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 99576 0 0 0 3794 204 0 0 25 0 1 0 968519396 298590208 55521 4294967295 134512640 135730672 3221224576 3221200616 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72898 55522 301 301 0 72597 0
vsize: 291592
[startup+50.0061 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 139516 0 0 0 4718 281 0 0 25 0 1 0 968519396 492834816 94258 4294967295 134512640 135730672 3221224576 3221199616 134776110 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120321 94258 301 301 0 120020 0
vsize: 481284
[startup+60.0068 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 150175 0 0 0 5691 307 0 0 25 0 1 0 968519396 430919680 85093 4294967295 134512640 135730672 3221224576 3221223152 134741728 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 105205 85093 301 301 0 104904 0
vsize: 420820
[startup+70.0079 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 150180 0 0 0 6690 308 0 0 25 0 1 0 968519396 430919680 85098 4294967295 134512640 135730672 3221224576 3221223072 134747751 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 105205 85098 301 301 0 104904 0
vsize: 420820
[startup+80.0089 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 150239 0 0 0 7690 308 0 0 25 0 1 0 968519396 431259648 85157 4294967295 134512640 135730672 3221224576 3221223072 134747751 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 105288 85157 301 301 0 104987 0
vsize: 421152
[startup+90.0093 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 150705 0 0 0 8689 309 0 0 25 0 1 0 968519396 433647616 85623 4294967295 134512640 135730672 3221224576 3221223232 134734759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 105871 85623 301 301 0 105570 0
vsize: 423484
[startup+100.011 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 186102 0 0 0 9610 388 0 0 25 0 1 0 968519396 541167616 96244 4294967295 134512640 135730672 3221224576 3220737376 134770715 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 132121 96244 301 301 0 131820 0
vsize: 528484
[startup+110.011 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 202394 0 0 0 10570 428 0 0 25 0 1 0 968519396 600981504 112319 4294967295 134512640 135730672 3221224576 3220384272 134770873 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146724 112319 301 301 0 146423 0
vsize: 586896
[startup+120.012 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 221051 0 0 0 11529 470 0 0 25 0 1 0 968519396 630738944 130729 4294967295 134512640 135730672 3221224576 3220882232 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153989 130729 301 301 0 153688 0
vsize: 615956
[startup+130.012 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 238348 0 0 0 12491 508 0 0 25 0 1 0 968519396 659062784 147798 4294967295 134512640 135730672 3221224576 3221222976 134742379 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160904 147798 301 301 0 160603 0
vsize: 643616
[startup+140.012 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 251853 0 0 0 13456 543 0 0 25 0 1 0 968519396 690348032 154936 4294967295 134512640 135730672 3221224576 3221222880 134787414 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168542 154937 301 301 0 168241 0
vsize: 674168
[startup+150.013 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 262536 0 0 0 14432 567 0 0 25 0 1 0 968519396 734142464 165619 4294967295 134512640 135730672 3221224576 3221222356 135282196 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179234 165619 301 301 0 178933 0
vsize: 716936
[startup+158.198 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 22801
Raw data (stat): 22801 (pb2sat-v2) R 22800 21152 21151 0 -1 0 262536 0 0 0 14432 567 0 0 25 0 1 0 968519396 734142464 165619 4294967295 134512640 135730672 3221224576 3221222356 135282196 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179234 165619 301 301 0 178933 0
vsize: 0

Child status: 1
Real time (s): 158.197
CPU time (s): 158.183
CPU user time (s): 152.164
CPU system time (s): 6.01908
CPU usage (%): 99.9911
Max. virtual memory (Kb): 716936
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####