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/miplib3/normalized-mps-v2-20-10-gt2.opb
MD5SUMf1382105ee9fb79777762a53cf6a73c1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 21166
Optimality of the best value was proved NO
Number of terms in the objective function 304
Biggest coefficient in the objective function 62376
Number of bits for the biggest coefficient in the objective function 16
Sum of the numbers in the objective function 3092598
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 62376
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 3092598
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1177.34
Number of variables556
Total number of constraints217
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)26
Number of constraints which are nor clauses,nor cardinality constraints191
Minimum length of a constraint1
Maximum length of a constraint48

Trace number 42515 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 09:40:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25735 boxname=wulflinc3 idbench=1035 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f1382105ee9fb79777762a53cf6a73c1  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-gt2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-gt2.opb
IDLAUNCH: 25735
/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:        741072 kB
Buffers:          9460 kB
Cached:         262332 kB
SwapCached:        820 kB
Active:          30484 kB
Inactive:       243456 kB
HighTotal:      131008 kB
HighFree:         5824 kB
LowTotal:       903652 kB
LowFree:        735248 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            13944 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:42:22 (client local time) WITH STATUS 1 IN 114.902 SECONDS
stats: 25735 7 114.902 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: 266910
c small objective detected

	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
Raw data (loadavg): 0.90 0.94 0.90 2/54 20772
Raw data (stat): 20772 (runsolver) R 20771 20224 20223 0 -1 64 3 0 0 0 0 0 0 0 19 0 1 0 969747424 884736 93 4294967295 134512640 135332820 3221224464 3221219508 134703346 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+10 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 28067 0 0 0 940 58 0 0 25 0 1 0 969747424 87519232 17109 4294967295 134512640 135730672 3221224576 3221091560 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21367 17110 301 301 0 21066 0
vsize: 85468
[startup+20.0005 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 56246 0 0 0 1883 115 0 0 25 0 1 0 969747424 173907968 34071 4294967295 134512640 135730672 3221224576 3221079792 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42458 34072 301 301 0 42157 0
vsize: 169832
[startup+30.0016 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 95310 0 0 0 2806 193 0 0 25 0 1 0 969747424 294981632 50950 4294967295 134512640 135730672 3221224576 3221118384 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72017 50950 301 301 0 71716 0
vsize: 288068
[startup+40.0015 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 110786 0 0 0 3773 226 0 0 25 0 1 0 969747424 342863872 66208 4294967295 134512640 135730672 3221224576 3221087848 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83707 66208 301 301 0 83406 0
vsize: 334828
[startup+50.002 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 136963 0 0 0 4723 276 0 0 25 0 1 0 969747424 525905920 91922 4294967295 134512640 135730672 3221224576 3221113096 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 128395 91925 301 301 0 128094 0
vsize: 513580
[startup+60.0022 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 189676 0 0 0 5621 378 0 0 25 0 1 0 969747424 591491072 100748 4294967295 134512640 135730672 3221224576 3221135008 134770867 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144407 100748 301 301 0 144106 0
vsize: 577628
[startup+70.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 200485 0 0 0 6597 402 0 0 25 0 1 0 969747424 625045504 111359 4294967295 134512640 135730672 3221224576 3221134496 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152599 111359 301 301 0 152298 0
vsize: 610396
[startup+80.0035 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 217749 0 0 0 7564 436 0 0 25 0 1 0 969747424 644947968 128396 4294967295 134512640 135730672 3221224576 3221127564 134607984 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157458 128397 301 301 0 157157 0
vsize: 629832
[startup+90.0037 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 237110 0 0 0 8531 469 0 0 25 0 1 0 969747424 673738752 147533 4294967295 134512640 135730672 3221224576 3221112360 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164487 147533 301 301 0 164186 0
vsize: 657948
[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 252486 0 0 0 9502 498 0 0 25 0 1 0 969747424 746975232 162731 4294967295 134512640 135730672 3221224576 3221117840 134770685 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182367 162731 301 301 0 182066 0
vsize: 729468
[startup+110.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 261249 0 0 0 10487 513 0 0 25 0 1 0 969747424 760737792 171392 4294967295 134512640 135730672 3221224576 3221222828 135281112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185727 171392 301 301 0 185426 0
vsize: 742908
[startup+114.897 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 20772
Raw data (stat): 20772 (pb2sat-v2) R 20771 20224 20223 0 -1 0 261249 0 0 0 10487 513 0 0 25 0 1 0 969747424 760737792 171392 4294967295 134512640 135730672 3221224576 3221222828 135281112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185727 171392 301 301 0 185426 0
vsize: 0

Child status: 1
Real time (s): 114.897
CPU time (s): 114.902
CPU user time (s): 109.417
CPU system time (s): 5.48417
CPU usage (%): 100.004
Max. virtual memory (Kb): 742908
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####