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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-gfrd-pnc.opb
MD5SUM512275544dbdaee426418ff6e8981436
Bench Categoryoptimization, big integers (OPTBIGINT)
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 27836
Biggest coefficient in the objective function 698469056512
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 44081965661371
Number of bits of the sum of numbers in the objective function 46
Biggest number in a constraint 698469056512
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 44081965661371
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.238963
Number of variables27888
Total number of constraints874
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 constraints874
Minimum length of a constraint11
Maximum length of a constraint246

Trace number 42316 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 05:31:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25536 boxname=wulflinc4 idbench=836 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  512275544dbdaee426418ff6e8981436  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-gfrd-pnc.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-gfrd-pnc.opb
IDLAUNCH: 25536
/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:        721840 kB
Buffers:         34144 kB
Cached:         256292 kB
SwapCached:        944 kB
Active:          50292 kB
Inactive:       242280 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        721588 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14528 kB
Committed_AS:    71896 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:33:54 (client local time) WITH STATUS 1 IN 132.308 SECONDS
stats: 25536 7 132.308 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 0.92 2/54 21535
Raw data (stat): 21535 (runsolver) R 21534 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968253718 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+10.0005 s]
Raw data (loadavg): 0.92 0.95 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 2212 0 0 0 994 5 0 0 25 0 1 0 968253718 8093696 1536 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1976 1536 301 301 0 1675 0
vsize: 7904
[startup+20.0003 s]
Raw data (loadavg): 0.93 0.95 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 19086 0 0 0 1961 37 0 0 25 0 1 0 968253718 72462336 13416 4294967295 134512640 135730672 3221224576 3221190624 135282214 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 17691 13416 301 301 0 17390 0
vsize: 70764
[startup+30.0012 s]
Raw data (loadavg): 0.94 0.95 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 48619 0 0 0 2898 100 0 0 25 0 1 0 968253718 149966848 26490 4294967295 134512640 135730672 3221224576 3221193776 134785843 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 36613 26491 301 301 0 36312 0
vsize: 146452
[startup+40.0011 s]
Raw data (loadavg): 0.95 0.95 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 78114 0 0 0 3847 152 0 0 25 0 1 0 968253718 280793088 55287 4294967295 134512640 135730672 3221224576 3221196192 135282246 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68553 55287 301 301 0 68252 0
vsize: 274212
[startup+50.001 s]
Raw data (loadavg): 0.96 0.95 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 100845 0 0 0 4799 200 0 0 25 0 1 0 968253718 331673600 56329 4294967295 134512640 135730672 3221224576 3221196576 134784071 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 80975 56329 301 301 0 80674 0
vsize: 323900
[startup+60.0012 s]
Raw data (loadavg): 0.96 0.95 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 119362 0 0 0 5768 231 0 0 25 0 1 0 968253718 359448576 74627 4294967295 134512640 135730672 3221224576 3221199916 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 87756 74627 301 301 0 87455 0
vsize: 351024
[startup+70.0018 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 158955 0 0 0 6695 304 0 0 25 0 1 0 968253718 491692032 94644 4294967295 134512640 135730672 3221224576 3221198380 135291075 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120042 94644 301 301 0 119741 0
vsize: 480168
[startup+80.0027 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 165661 0 0 0 7682 317 0 0 25 0 1 0 968253718 491692032 101223 4294967295 134512640 135730672 3221224576 3221190240 134546443 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120042 101223 301 301 0 119741 0
vsize: 480168
[startup+90.0027 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 200505 0 0 0 8608 391 0 0 25 0 1 0 968253718 625909760 111293 4294967295 134512640 135730672 3221224576 3221192896 134783984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152810 111293 301 301 0 152509 0
vsize: 611240
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 210735 0 0 0 9590 410 0 0 25 0 1 0 968253718 625909760 121330 4294967295 134512640 135730672 3221224576 3221196272 134770688 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152810 121330 301 301 0 152509 0
vsize: 611240
[startup+110.004 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 222503 0 0 0 10566 434 0 0 25 0 1 0 968253718 625909760 132878 4294967295 134512640 135730672 3221224576 3221197664 134770870 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152810 132878 301 301 0 152509 0
vsize: 611240
[startup+120.004 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 236742 0 0 0 11540 460 0 0 25 0 1 0 968253718 635822080 146897 4294967295 134512640 135730672 3221224576 3221196736 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155230 146897 301 301 0 154929 0
vsize: 620920
[startup+130.004 s]
Raw data (loadavg): 0.99 0.96 0.92 2/54 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 241778 0 0 0 12515 485 0 0 25 0 1 0 968253718 333242368 80855 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81358 80855 301 301 0 81057 0
vsize: 325432
[startup+132.309 s]
Raw data (loadavg): 0.99 0.96 0.92 1/53 21535
Raw data (stat): 21535 (pb2sat-v2) R 21534 21152 21151 0 -1 0 241778 0 0 0 12515 485 0 0 25 0 1 0 968253718 333242368 80855 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81358 80855 301 301 0 81057 0
vsize: 0

Child status: 1
Real time (s): 132.309
CPU time (s): 132.308
CPU user time (s): 127.282
CPU system time (s): 5.02623
CPU usage (%): 99.9994
Max. virtual memory (Kb): 620920
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####