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-sctap2.opb
MD5SUMc56066a13a725fcc9c143db3d9f8cc06
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 24450007
Optimality of the best value was proved NO
Number of terms in the objective function 28200
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 25763487750
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 41943040
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 25763487750
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.2
Number of variables37600
Total number of constraints1090
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 constraints1090
Minimum length of a constraint60
Maximum length of a constraint480

Trace number 42739 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 14:15:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25956 boxname=wulflinc2 idbench=1256 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c56066a13a725fcc9c143db3d9f8cc06  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-sctap2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-sctap2.opb
IDLAUNCH: 25956
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        708640 kB
Buffers:         10276 kB
Cached:         292944 kB
SwapCached:       1420 kB
Active:          27604 kB
Inactive:       277628 kB
HighTotal:      131008 kB
HighFree:         1372 kB
LowTotal:       903652 kB
LowFree:        707268 kB
SwapTotal:     2097136 kB
SwapFree:      2094720 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14964 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:17:33 (client local time) WITH STATUS 1 IN 109.627 SECONDS
stats: 25956 7 109.627 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 0.95 0.90 2/54 11536
Raw data (stat): 11536 (runsolver) R 11535 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971412383 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+10.0001 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 2229 0 0 0 992 6 0 0 25 0 1 0 971412383 8093696 1552 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1976 1552 301 301 0 1675 0
vsize: 7904
[startup+19.9997 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 15219 0 0 0 1962 36 0 0 25 0 1 0 971412383 63090688 9652 4294967295 134512640 135730672 3221224576 3221194976 134775365 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 15403 9654 301 301 0 15102 0
vsize: 61612
[startup+30.0011 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 47196 0 0 0 2892 106 0 0 25 0 1 0 971412383 153714688 25176 4294967295 134512640 135730672 3221224576 3221200320 134783994 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37528 25176 301 301 0 37227 0
vsize: 150112
[startup+40.0011 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 74847 0 0 0 3835 163 0 0 25 0 1 0 971412383 217886720 43395 4294967295 134512640 135730672 3221224576 3221183232 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 53195 43396 301 301 0 52894 0
vsize: 212780
[startup+50.0009 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 100256 0 0 0 4778 219 0 0 25 0 1 0 971412383 301772800 56268 4294967295 134512640 135730672 3221224576 3221182868 134612451 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73675 56268 301 301 0 73374 0
vsize: 294700
[startup+60.0008 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 139155 0 0 0 5701 297 0 0 25 0 1 0 971412383 493989888 94105 4294967295 134512640 135730672 3221224576 3221207304 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120603 94108 301 301 0 120302 0
vsize: 482412
[startup+70.0012 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 178556 0 0 0 6613 385 0 0 25 0 1 0 971412383 531050496 91158 4294967295 134512640 135730672 3221224576 3221206016 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129651 91159 301 301 0 129350 0
vsize: 518604
[startup+80.0019 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 192012 0 0 0 7581 416 0 0 25 0 1 0 971412383 564604928 104361 4294967295 134512640 135730672 3221224576 3221188884 135291157 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137843 104361 301 301 0 137542 0
vsize: 551372
[startup+90.0019 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 208745 0 0 0 8541 457 0 0 25 0 1 0 971412383 569065472 120801 4294967295 134512640 135730672 3221224576 3221207944 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138932 120801 301 301 0 138631 0
vsize: 555728
[startup+100.001 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 224588 0 0 0 9504 493 0 0 25 0 1 0 971412383 634671104 136416 4294967295 134512640 135730672 3221224576 3221209376 134549520 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154949 136416 301 301 0 154648 0
vsize: 619796
[startup+109.647 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 11536
Raw data (stat): 11536 (pb2sat-v2) R 11535 31399 31398 0 -1 0 224588 0 0 0 9504 493 0 0 25 0 1 0 971412383 634671104 136416 4294967295 134512640 135730672 3221224576 3221209376 134549520 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154949 136416 301 301 0 154648 0
vsize: 0

Child status: 1
Real time (s): 109.646
CPU time (s): 109.627
CPU user time (s): 104.016
CPU system time (s): 5.61115
CPU usage (%): 99.9826
Max. virtual memory (Kb): 619796
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####