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-modszk1.opb
MD5SUM4c80436c6cab58e82888f1a9aa37d4f5
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 29700
Biggest coefficient in the objective function 197378980184064000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function -3892337408572559116
Number of bits of the sum of numbers in the objective function 64
Biggest number in a constraint 197378980184064000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint -3892337408572559116
Number of bits of the biggest sum of numbers64
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.420935
Number of variables48602
Total number of constraints686
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 constraints686
Minimum length of a constraint30
Maximum length of a constraint600

Trace number 35071 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-28 12:09:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24375 boxname=wulflinc24 idbench=847 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4c80436c6cab58e82888f1a9aa37d4f5  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-modszk1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-modszk1.opb
IDLAUNCH: 24375
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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		: 451.080
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:        718480 kB
Buffers:         35912 kB
Cached:         258164 kB
SwapCached:        636 kB
Active:          23088 kB
Inactive:       273008 kB
HighTotal:      131008 kB
HighFree:         3948 kB
LowTotal:       903652 kB
LowFree:        714532 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5148 kB
Slab:            14408 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:11:47 (client local time) WITH STATUS 1 IN 125.37 SECONDS
stats: 24375 7 125.37 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 0.93 0.90 1/54 20197
Raw data (stat): 20197 (runsolver) D 20196 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 864689302 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0008 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 2184 0 0 0 993 4 0 0 25 0 1 0 864689302 7954432 1509 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1942 1509 300 300 0 1642 0
vsize: 7768
[startup+20.0012 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 10550 0 0 0 1973 24 0 0 25 0 1 0 864689302 38158336 7813 4294967295 134512640 135726644 3221224576 3209410148 135277546 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 9316 7813 300 300 0 9016 0
vsize: 37264
[startup+30.0018 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 41880 0 0 0 2906 90 0 0 25 0 1 0 864689302 136454144 25856 4294967295 134512640 135726644 3221224576 3209320456 134766772 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 33314 25856 300 300 0 33014 0
vsize: 133256
[startup+40.0027 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 76276 0 0 0 3840 156 0 0 25 0 1 0 864689302 287797248 53446 4294967295 134512640 135726644 3221224576 3209328960 134771783 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 70263 53449 300 300 0 69963 0
vsize: 281052
[startup+50.0031 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 103395 0 0 0 4782 215 0 0 25 0 1 0 864689302 312545280 58765 4294967295 134512640 135726644 3221224576 3209327792 134785159 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 76305 58765 300 300 0 76005 0
vsize: 305220
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 122854 0 0 0 5740 257 0 0 25 0 1 0 864689302 377008128 77984 4294967295 134512640 135726644 3221224576 3209326552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 92043 77984 300 300 0 91743 0
vsize: 368172
[startup+70.0027 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 160165 0 0 0 6669 327 0 0 25 0 1 0 864689302 498651136 95573 4294967295 134512640 135726644 3221224576 3209322552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 121741 95573 300 300 0 121441 0
vsize: 486964
[startup+80.0031 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 195768 0 0 0 7595 402 0 0 25 0 1 0 864689302 599314432 106385 4294967295 134512640 135726644 3221224576 3209335352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146317 106385 300 300 0 146017 0
vsize: 585268
[startup+90.0029 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 211056 0 0 0 8562 435 0 0 25 0 1 0 864689302 651255808 121463 4294967295 134512640 135726644 3221224576 3209338456 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158998 121464 300 300 0 158698 0
vsize: 635992
[startup+100.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 231077 0 0 0 9521 476 0 0 25 0 1 0 864689302 683073536 141242 4294967295 134512640 135726644 3221224576 3209329752 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166766 141242 300 300 0 166466 0
vsize: 667064
[startup+110.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 251098 0 0 0 10482 515 0 0 25 0 1 0 864689302 713969664 161020 4294967295 134512640 135726644 3221224576 3209327692 134604415 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174309 161020 300 300 0 174009 0
vsize: 697236
[startup+120.003 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 254646 0 0 0 11463 534 0 0 25 0 1 0 864689302 409280512 99031 4294967295 134512640 135726644 3221224576 3221222764 135277574 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 99922 99031 300 300 0 99622 0
vsize: 399688
[startup+125.389 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 20197
Raw data (stat): 20197 (pb2sat) R 20196 4613 4612 0 -1 0 254646 0 0 0 11463 534 0 0 25 0 1 0 864689302 409280512 99031 4294967295 134512640 135726644 3221224576 3221222764 135277574 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 99922 99031 300 300 0 99622 0
vsize: 0

Child status: 1
Real time (s): 125.388
CPU time (s): 125.37
CPU user time (s): 119.811
CPU system time (s): 5.55915
CPU usage (%): 99.9855
Max. virtual memory (Kb): 697236
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####