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-v2-13-7/plato.asu.edu/pub/fctp/normalized-mps-v2-13-7-ran10x26.opb
MD5SUMf8a5d8e99e0f063cb10208b1e5f7bf38
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1277437
Optimality of the best value was proved NO
Number of terms in the objective function 5460
Biggest coefficient in the objective function 5242880
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 1567797422
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 5242880
Number of bits of the biggest number in a constraint 23
Biggest sum of numbers in a constraint 1567797422
Number of bits of the biggest sum of numbers31
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.04
Number of variables5460
Total number of constraints296
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 constraints296
Minimum length of a constraint21
Maximum length of a constraint520

Trace number 42963 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 19:34:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26181 boxname=wulflinc4 idbench=1481 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f8a5d8e99e0f063cb10208b1e5f7bf38  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-ran10x26.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-ran10x26.opb
IDLAUNCH: 26181
/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:        812444 kB
Buffers:         14996 kB
Cached:         185516 kB
SwapCached:        904 kB
Active:          27368 kB
Inactive:       175244 kB
HighTotal:      131008 kB
HighFree:        26824 kB
LowTotal:       903652 kB
LowFree:        785620 kB
SwapTotal:     2097136 kB
SwapFree:      2095236 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            13984 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 19:36:40 (client local time) WITH STATUS 1 IN 115.074 SECONDS
stats: 26181 7 115.074 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: 5480289
c big objective detected
c trying from 0 to 511

	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 31985
Raw data (stat): 31985 (runsolver) R 31984 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973312638 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+10.0014 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 26173 0 0 0 943 56 0 0 25 0 1 0 973312638 77430784 15266 4294967295 134512640 135730672 3221224576 3221223248 134742366 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18904 15266 301 301 0 18603 0
vsize: 75616
[startup+20.0017 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 40018 0 0 0 1911 87 0 0 25 0 1 0 973312638 124403712 24031 4294967295 134512640 135730672 3221224576 3220275696 134770712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 30372 24031 301 301 0 30071 0
vsize: 121488
[startup+30.0015 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 62028 0 0 0 2858 140 0 0 25 0 1 0 973312638 182702080 39650 4294967295 134512640 135730672 3221224576 3219200984 135284277 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44605 39651 301 301 0 44304 0
vsize: 178420
[startup+40.0017 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 97952 0 0 0 3782 216 0 0 25 0 1 0 973312638 290508800 53378 4294967295 134512640 135730672 3221224576 3220493776 134770688 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 70925 53378 301 301 0 70624 0
vsize: 283700
[startup+50.0023 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 115829 0 0 0 4742 256 0 0 25 0 1 0 973312638 352718848 71030 4294967295 134512640 135730672 3221224576 3221117376 135282712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86113 71030 301 301 0 85812 0
vsize: 344452
[startup+60.0031 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 154079 0 0 0 5667 331 0 0 25 0 1 0 973312638 479440896 90716 4294967295 134512640 135730672 3221224576 3218721392 134608712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117051 90716 301 301 0 116750 0
vsize: 468204
[startup+70.0044 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 188732 0 0 0 6591 408 0 0 25 0 1 0 973312638 580104192 100586 4294967295 134512640 135730672 3221224576 3220636208 134770825 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141627 100586 301 301 0 141326 0
vsize: 566508
[startup+80.0049 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 202940 0 0 0 7557 443 0 0 25 0 1 0 973312638 627310592 114570 4294967295 134512640 135730672 3221224576 3219562864 134784107 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153152 114570 301 301 0 152851 0
vsize: 612608
[startup+90.0047 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 219868 0 0 0 8517 482 0 0 25 0 1 0 973312638 653398016 131282 4294967295 134512640 135730672 3221224576 3220196316 134607999 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159521 131282 301 301 0 159220 0
vsize: 638084
[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 238802 0 0 0 9478 521 0 0 25 0 1 0 973312638 684892160 149985 4294967295 134512640 135730672 3221224576 3219707828 134770164 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167210 149985 301 301 0 166909 0
vsize: 668840
[startup+110.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 249550 0 0 0 10455 544 0 0 25 0 1 0 973312638 702566400 160577 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171525 160577 301 301 0 171224 0
vsize: 686100
[startup+115.085 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 31985
Raw data (stat): 31985 (pb2sat-v2) R 31984 21152 21151 0 -1 0 249550 0 0 0 10455 544 0 0 25 0 1 0 973312638 702566400 160577 4294967295 134512640 135730672 3221224576 3221222828 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171525 160577 301 301 0 171224 0
vsize: 0

Child status: 1
Real time (s): 115.084
CPU time (s): 115.074
CPU user time (s): 109.307
CPU system time (s): 5.76612
CPU usage (%): 99.9907
Max. virtual memory (Kb): 686100
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####