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/unibo/normalized-mps-v2-20-10-core4284-1064.opb
MD5SUM15e353c3ac96932543c879f694fc1285
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 21975
Biggest coefficient in the objective function 53687091200000000000
Number of bits for the biggest coefficient in the objective function 66
Sum of the numbers in the objective function 215753096412511174656
Number of bits of the sum of numbers in the objective function 68
Biggest number in a constraint 10240000000000000000000
Number of bits of the biggest number in a constraint 74
Biggest sum of numbers in a constraint 10455753096412511862784
Number of bits of the biggest sum of numbers74
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark35.5106
Number of variables21975
Total number of constraints25992
Number of constraints which are clauses4284
Number of constraints which are cardinality constraints (but not clauses)21707
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint21975

Trace number 42639 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 13:13:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25858 boxname=wulflinc3 idbench=1158 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  15e353c3ac96932543c879f694fc1285  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-core4284-1064.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-core4284-1064.opb
IDLAUNCH: 25858
/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:        710040 kB
Buffers:         22416 kB
Cached:         279804 kB
SwapCached:        788 kB
Active:          36880 kB
Inactive:       267456 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        709788 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14544 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:16:18 (client local time) WITH STATUS 1 IN 143.579 SECONDS
stats: 25858 7 143.579 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): 0.91 0.94 0.90 2/54 22945
Raw data (stat): 22945 (runsolver) R 22944 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971028322 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+10.001 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 2075 0 0 0 994 5 0 0 25 0 1 0 971028322 7688192 1401 4294967295 134512640 135730672 3221224576 3221221664 134561669 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1877 1401 301 301 0 1576 0
vsize: 7508
[startup+20.0016 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 2578 0 0 0 1990 9 0 0 25 0 1 0 971028322 9871360 1903 4294967295 134512640 135730672 3221224576 3221221664 134561664 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2410 1903 301 301 0 2109 0
vsize: 9640
[startup+30.0016 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 22818 0 0 0 2943 55 0 0 25 0 1 0 971028322 72302592 14768 4294967295 134512640 135730672 3221224576 3216490264 135301581 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 17652 14768 301 301 0 17351 0
vsize: 70608
[startup+40.0024 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 52689 0 0 0 3876 123 0 0 25 0 1 0 971028322 176291840 30626 4294967295 134512640 135730672 3221224576 3215683820 135301642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43040 30626 301 301 0 42739 0
vsize: 172160
[startup+50.0026 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 83547 0 0 0 4809 190 0 0 25 0 1 0 971028322 292745216 60783 4294967295 134512640 135730672 3221224576 3216295120 134776123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71471 60783 301 301 0 71170 0
vsize: 285884
[startup+60.003 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 106267 0 0 0 5757 242 0 0 25 0 1 0 971028322 341516288 62326 4294967295 134512640 135730672 3221224576 3216631064 134606867 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83378 62326 301 301 0 83077 0
vsize: 333512
[startup+70.0029 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 124789 0 0 0 6718 282 0 0 25 0 1 0 971028322 368009216 80632 4294967295 134512640 135730672 3221224576 3216594024 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89846 80633 301 301 0 89545 0
vsize: 359384
[startup+80.0031 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 165571 0 0 0 7636 364 0 0 25 0 1 0 971028322 502841344 102859 4294967295 134512640 135730672 3221224576 3216363344 134608725 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 122764 102859 301 301 0 122463 0
vsize: 491056
[startup+90.0036 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 199302 0 0 0 8558 441 0 0 25 0 1 0 971028322 637059072 111849 4294967295 134512640 135730672 3221224576 3215910264 135301648 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155532 111849 301 301 0 155231 0
vsize: 622128
[startup+100.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 212455 0 0 0 9526 474 0 0 25 0 1 0 971028322 640438272 124781 4294967295 134512640 135730672 3221224576 3214572160 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156357 124782 301 301 0 156056 0
vsize: 625428
[startup+110.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 230527 0 0 0 10485 515 0 0 25 0 1 0 971028322 666390528 142643 4294967295 134512640 135730672 3221224576 3214302712 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162693 142643 301 301 0 162392 0
vsize: 650772
[startup+120.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 245055 0 0 0 11456 543 0 0 25 0 1 0 971028322 737267712 157003 4294967295 134512640 135730672 3221224576 3215800016 134611253 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179997 157003 301 301 0 179696 0
vsize: 719988
[startup+130.005 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 262908 0 0 0 12416 584 0 0 25 0 1 0 971028322 762949632 174649 4294967295 134512640 135730672 3221224576 3216345784 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186267 174650 301 301 0 185966 0
vsize: 745068
[startup+140.006 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 266824 0 0 0 13405 595 0 0 25 0 1 0 971028322 768745472 178371 4294967295 134512640 135730672 3221224576 3221222828 135281112 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187682 178371 301 301 0 187381 0
vsize: 750728
[startup+143.576 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 22945
Raw data (stat): 22945 (pb2sat-v2) R 22944 20224 20223 0 -1 0 266824 0 0 0 13405 595 0 0 25 0 1 0 971028322 768745472 178371 4294967295 134512640 135730672 3221224576 3221222828 135281112 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187682 178371 301 301 0 187381 0
vsize: 0

Child status: 1
Real time (s): 143.575
CPU time (s): 143.579
CPU user time (s): 137.253
CPU system time (s): 6.32604
CPU usage (%): 100.003
Max. virtual memory (Kb): 750728
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####