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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-sctap1.opb
MD5SUM6d2898572483dddc248ecc48cac97a0c
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5657891
Optimality of the best value was proved NO
Number of terms in the objective function 7200
Biggest coefficient in the objective function 41943040
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 6207564000
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 41943040
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 6207564000
Number of bits of the biggest sum of numbers33
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark390.25
Number of variables9600
Total number of constraints300
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 constraints300
Minimum length of a constraint60
Maximum length of a constraint440

Trace number 42737 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 14:15:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25955 boxname=wulflinc1 idbench=1255 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6d2898572483dddc248ecc48cac97a0c  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-sctap1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-sctap1.opb
IDLAUNCH: 25955
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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	: 2
cpu MHz		: 451.053
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:        721216 kB
Buffers:         19084 kB
Cached:         270052 kB
SwapCached:       1156 kB
Active:          26612 kB
Inactive:       264828 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        720964 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16296 kB
Committed_AS:    92708 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:16:57 (client local time) WITH STATUS 1 IN 101.306 SECONDS
stats: 25955 7 101.306 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 0.92 0.90 1/55 20962
Raw data (stat): 20962 (runsolver) R 20961 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914548524 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 0.93 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 25516 0 0 0 942 56 0 0 25 0 1 0 914548524 76824576 14581 4294967295 134512640 135730672 3221224576 3221208388 134612541 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 18756 14581 301 301 0 18455 0
vsize: 75024
[startup+19.9999 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 52638 0 0 0 1881 118 0 0 25 0 1 0 914548524 152408064 30714 4294967295 134512640 135730672 3221224576 3221186992 134770873 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37209 30714 301 301 0 36908 0
vsize: 148836
[startup+30.0007 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 91153 0 0 0 2800 198 0 0 25 0 1 0 914548524 265084928 47523 4294967295 134512640 135730672 3221224576 3221175484 134608058 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 64718 47524 301 301 0 64417 0
vsize: 258872
[startup+40.0005 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 106605 0 0 0 3766 233 0 0 25 0 1 0 914548524 305127424 62722 4294967295 134512640 135730672 3221224576 3221187920 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74494 62723 301 301 0 74193 0
vsize: 297976
[startup+50.0014 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 146595 0 0 0 4691 307 0 0 25 0 1 0 914548524 431579136 84131 4294967295 134512640 135730672 3221224576 3221145100 135301640 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 105366 84131 301 301 0 105065 0
vsize: 421464
[startup+60.0011 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 182624 0 0 0 5616 382 0 0 25 0 1 0 914548524 565891072 95376 4294967295 134512640 135730672 3221224576 3221125152 134784071 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138157 95376 301 301 0 137856 0
vsize: 552628
[startup+70.0008 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 196196 0 0 0 6585 413 0 0 25 0 1 0 914548524 565891072 108703 4294967295 134512640 135730672 3221224576 3221161808 135288398 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138157 108704 301 301 0 137856 0
vsize: 552628
[startup+80.0016 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 212520 0 0 0 7548 451 0 0 25 0 1 0 914548524 577650688 124783 4294967295 134512640 135730672 3221224576 3221037084 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141028 124783 301 301 0 140727 0
vsize: 564112
[startup+90.002 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 226967 0 0 0 8516 483 0 0 25 0 1 0 914548524 641228800 139028 4294967295 134512640 135730672 3221224576 3221048344 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156550 139028 301 301 0 156249 0
vsize: 626200
[startup+100.002 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 242602 0 0 0 9464 535 0 0 25 0 1 0 914548524 149176320 36260 4294967295 134512640 135730672 3221224576 3221223020 135281187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 36420 36260 301 301 0 36119 0
vsize: 145680
[startup+101.316 s]
Raw data (loadavg): 0.98 0.94 0.91 1/54 20962
Raw data (stat): 20962 (pb2sat-v2) R 20961 8378 8377 0 -1 0 242602 0 0 0 9464 535 0 0 25 0 1 0 914548524 149176320 36260 4294967295 134512640 135730672 3221224576 3221223020 135281187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 36420 36260 301 301 0 36119 0
vsize: 0

Child status: 1
Real time (s): 101.316
CPU time (s): 101.306
CPU user time (s): 95.8674
CPU system time (s): 5.43817
CPU usage (%): 99.9896
Max. virtual memory (Kb): 626200
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####