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/MIPLIB/miplib3/normalized-mps-v2-13-7-pp08aCUTS.opb
MD5SUMfa6454a9831f2da4180d8bfab7c0a21b
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 2304
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 178464600
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 1048576
Number of bits of the biggest number in a constraint 21
Biggest sum of numbers in a constraint 178464600
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.037993
Number of variables3288
Total number of constraints310
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 constraints310
Minimum length of a constraint14
Maximum length of a constraint123

Trace number 35662 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc22 THE 2005-05-28 13:43:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24972 boxname=wulflinc22 idbench=1444 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fa6454a9831f2da4180d8bfab7c0a21b  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-pp08aCUTS.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-pp08aCUTS.opb
IDLAUNCH: 24972
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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	: 3
cpu MHz		: 451.031
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:        776220 kB
Buffers:         33652 kB
Cached:         194240 kB
SwapCached:        384 kB
Active:          54496 kB
Inactive:       183336 kB
HighTotal:      131008 kB
HighFree:        11592 kB
LowTotal:       903652 kB
LowFree:        764628 kB
SwapTotal:     2097892 kB
SwapFree:      2096800 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5540 kB
Slab:            15156 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:45:28 (client local time) WITH STATUS 1 IN 100.749 SECONDS
stats: 24972 7 100.749 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): 0.90 0.95 0.90 2/54 1226
Raw data (stat): 1226 (runsolver) R 1225 23310 23309 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865255318 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+10.0003 s]
Raw data (loadavg): 0.92 0.95 0.90 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 30973 0 0 0 933 66 0 0 25 0 1 0 865255318 91742208 20017 4294967295 134512640 135726644 3221224576 3220784464 134557684 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22398 20017 300 300 0 22098 0
vsize: 89592
[startup+20.0002 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 61005 0 0 0 1872 127 0 0 25 0 1 0 865255318 179970048 39073 4294967295 134512640 135726644 3221224576 3220778492 134604451 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43938 39073 300 300 0 43638 0
vsize: 175752
[startup+30.0007 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 100626 0 0 0 2793 206 0 0 25 0 1 0 865255318 333774848 56504 4294967295 134512640 135726644 3221224576 3220926656 134558265 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81488 56504 300 300 0 81188 0
vsize: 325952
[startup+40.0006 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 120221 0 0 0 3756 243 0 0 25 0 1 0 865255318 354320384 75842 4294967295 134512640 135726644 3221224576 3220814632 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86504 75842 300 300 0 86204 0
vsize: 346016
[startup+50.0004 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 164542 0 0 0 4670 330 0 0 25 0 1 0 865255318 497401856 100558 4294967295 134512640 135726644 3221224576 3220884992 134603602 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 121436 100558 300 300 0 121136 0
vsize: 485744
[startup+60.0008 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 199718 0 0 0 5591 409 0 0 25 0 1 0 865255318 631619584 110971 4294967295 134512640 135726644 3221224576 3220914408 135105697 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154204 110972 300 300 0 153904 0
vsize: 616816
[startup+70.0005 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 215338 0 0 0 6563 437 0 0 25 0 1 0 865255318 636350464 126337 4294967295 134512640 135726644 3221224576 3220950608 134606502 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155359 126339 300 300 0 155059 0
vsize: 621436
[startup+80.0016 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 236868 0 0 0 7521 479 0 0 25 0 1 0 865255318 666898432 147620 4294967295 134512640 135726644 3221224576 3220987692 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162817 147620 300 300 0 162517 0
vsize: 651268
[startup+90.0019 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 254298 0 0 0 8483 517 0 0 25 0 1 0 865255318 741830656 164849 4294967295 134512640 135726644 3221224576 3220909640 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 181111 164849 300 300 0 180811 0
vsize: 724444
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 265924 0 0 0 9443 558 0 0 25 0 1 0 865255318 398647296 96883 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97326 96883 300 300 0 97026 0
vsize: 389304
[startup+100.741 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 1226
Raw data (stat): 1226 (pb2sat) R 1225 23310 23309 0 -1 0 265924 0 0 0 9443 558 0 0 25 0 1 0 865255318 398647296 96883 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97326 96883 300 300 0 97026 0
vsize: 0

Child status: 1
Real time (s): 100.74
CPU time (s): 100.749
CPU user time (s): 94.9606
CPU system time (s): 5.78812
CPU usage (%): 100.008
Max. virtual memory (Kb): 724444
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####