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-kb2.opb
MD5SUMcdf1de396fe048a09eaf2f98435758ef
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 48
Biggest coefficient in the objective function 4325376
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 12058535
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 5715913739337728
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 75299293548900036
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1217.12
Number of variables1096
Total number of constraints52
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 constraints52
Minimum length of a constraint13
Maximum length of a constraint300

Trace number 35060 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-28 12:08:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24371 boxname=wulflinc18 idbench=843 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cdf1de396fe048a09eaf2f98435758ef  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-kb2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-kb2.opb
IDLAUNCH: 24371
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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:        704780 kB
Buffers:         33252 kB
Cached:         264136 kB
SwapCached:        792 kB
Active:          19908 kB
Inactive:       279560 kB
HighTotal:      131008 kB
HighFree:        70728 kB
LowTotal:       903652 kB
LowFree:        634052 kB
SwapTotal:     2097892 kB
SwapFree:      2096240 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            24848 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:10:21 (client local time) WITH STATUS 1 IN 100.26 SECONDS
stats: 24371 7 100.26 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 0.93 0.90 2/54 1600
Raw data (stat): 1600 (runsolver) R 1599 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864670871 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+10.0008 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 30044 0 0 0 936 63 0 0 25 0 1 0 864670871 90152960 18891 4294967295 134512640 135726644 3221224592 3221108800 134558990 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22010 18892 300 300 0 21710 0
vsize: 88040
[startup+20.0007 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 59365 0 0 0 1877 122 0 0 25 0 1 0 864670871 179642368 37110 4294967295 134512640 135726644 3221224592 3221109512 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43858 37110 300 300 0 43558 0
vsize: 175432
[startup+30.0013 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 97253 0 0 0 2803 196 0 0 25 0 1 0 864670871 290213888 52253 4294967295 134512640 135726644 3221224592 3221108128 135280580 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 70853 52254 300 300 0 70553 0
vsize: 283412
[startup+40.0016 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 117386 0 0 0 3767 233 0 0 25 0 1 0 864670871 355594240 72131 4294967295 134512640 135726644 3221224592 3221107824 134767123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86815 72131 300 300 0 86515 0
vsize: 347260
[startup+50.0095 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 156157 0 0 0 4697 304 0 0 25 0 1 0 864670871 475803648 89957 4294967295 134512640 135726644 3221224592 3221107424 134767123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116163 89957 300 300 0 115863 0
vsize: 464652
[startup+60.009 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 192087 0 0 0 5622 378 0 0 25 0 1 0 864670871 576466944 101084 4294967295 134512640 135726644 3221224592 3221108164 135101152 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140739 101084 300 300 0 140439 0
vsize: 562956
[startup+70.0133 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 209431 0 0 0 6591 410 0 0 25 0 1 0 864670871 635297792 118208 4294967295 134512640 135726644 3221224592 3221109112 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155102 118208 300 300 0 154802 0
vsize: 620408
[startup+80.0159 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 230155 0 0 0 7551 451 0 0 25 0 1 0 864670871 668295168 138675 4294967295 134512640 135726644 3221224592 3221108396 134604368 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163158 138675 300 300 0 162858 0
vsize: 652632
[startup+90.0159 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 250471 0 0 0 8514 488 0 0 25 0 1 0 864670871 701403136 158743 4294967295 134512640 135726644 3221224592 3221222528 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171241 158743 300 300 0 170941 0
vsize: 684964
[startup+100.017 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 250472 0 0 0 9501 501 0 0 25 0 1 0 864670871 382808064 92991 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93459 92991 300 300 0 93159 0
vsize: 373836
[startup+100.254 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 1600
Raw data (stat): 1600 (pb2sat) R 1599 24172 24171 0 -1 0 250472 0 0 0 9501 501 0 0 25 0 1 0 864670871 382808064 92991 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93459 92991 300 300 0 93159 0
vsize: 0

Child status: 1
Real time (s): 100.254
CPU time (s): 100.26
CPU user time (s): 95.0615
CPU system time (s): 5.19821
CPU usage (%): 100.006
Max. virtual memory (Kb): 684964
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####