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-grow22.opb
MD5SUM252426e4d147311f236e947ac8e9f53d
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 1958
Biggest coefficient in the objective function 3758096384
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 234612588283
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 878188741787648
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 4550739094651140
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1264.78
Number of variables25124
Total number of constraints1320
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 constraints1320
Minimum length of a constraint22
Maximum length of a constraint491

Trace number 42320 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 05:36:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25540 boxname=wulflinc4 idbench=840 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  252426e4d147311f236e947ac8e9f53d  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-grow22.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-grow22.opb
IDLAUNCH: 25540
/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:        695448 kB
Buffers:         34176 kB
Cached:         282440 kB
SwapCached:        944 kB
Active:          48028 kB
Inactive:       270628 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        695196 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14716 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:38:14 (client local time) WITH STATUS 1 IN 120.193 SECONDS
stats: 25540 7 120.193 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 0.94 0.91 1/54 21721
Raw data (stat): 21721 (runsolver) R 21720 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968280969 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+10.001 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 26660 0 0 0 943 56 0 0 25 0 1 0 968280969 86691840 15761 4294967295 134512640 135730672 3221224576 3221121072 134546477 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21165 15761 301 301 0 20864 0
vsize: 84660
[startup+20.0023 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 53557 0 0 0 1893 106 0 0 25 0 1 0 968280969 171474944 31710 4294967295 134512640 135730672 3221224576 3221120144 134770676 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 41864 31710 301 301 0 41563 0
vsize: 167456
[startup+30.0029 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 81278 0 0 0 2841 158 0 0 25 0 1 0 968280969 244490240 49526 4294967295 134512640 135730672 3221224576 3221121536 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59690 49526 301 301 0 59389 0
vsize: 238760
[startup+40.0029 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 106422 0 0 0 3792 207 0 0 25 0 1 0 968280969 338755584 62188 4294967295 134512640 135730672 3221224576 3221122332 135301642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82704 62188 301 301 0 82403 0
vsize: 330816
[startup+50.0032 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 125235 0 0 0 4758 242 0 0 25 0 1 0 968280969 367157248 80779 4294967295 134512640 135730672 3221224576 3221128144 134550417 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 89638 80779 301 301 0 89337 0
vsize: 358552
[startup+60.0042 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 162326 0 0 0 5697 303 0 0 25 0 1 0 968280969 490049536 98281 4294967295 134512640 135730672 3221224576 3221124272 134786923 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 119641 98281 301 301 0 119340 0
vsize: 478564
[startup+70.0048 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 196611 0 0 0 6624 376 0 0 25 0 1 0 968280969 590712832 107809 4294967295 134512640 135730672 3221224576 3221124096 134814002 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144217 107809 301 301 0 143916 0
vsize: 576868
[startup+80.0057 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 209240 0 0 0 7603 397 0 0 25 0 1 0 968280969 635453440 120253 4294967295 134512640 135730672 3221224576 3221126640 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155140 120253 301 301 0 154839 0
vsize: 620560
[startup+90.0061 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 227308 0 0 0 8573 427 0 0 25 0 1 0 968280969 662798336 138109 4294967295 134512640 135730672 3221224576 3221129852 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161816 138109 301 301 0 161515 0
vsize: 647264
[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 245229 0 0 0 9540 461 0 0 25 0 1 0 968280969 690081792 155818 4294967295 134512640 135730672 3221224576 3221126640 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168477 155818 301 301 0 168176 0
vsize: 673908
[startup+110.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 258538 0 0 0 10511 489 0 0 25 0 1 0 968280969 761233408 168970 4294967295 134512640 135730672 3221224576 3221222656 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185848 168970 301 301 0 185547 0
vsize: 743392
[startup+120.046 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 258539 0 0 0 11495 510 0 0 25 0 1 0 968280969 256278528 62117 4294967295 134512640 135730672 3221224576 3221222916 135344689 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 62568 62117 301 301 0 62267 0
vsize: 250272
[startup+120.187 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 21721
Raw data (stat): 21721 (pb2sat-v2) R 21720 21152 21151 0 -1 0 258539 0 0 0 11495 510 0 0 25 0 1 0 968280969 256278528 62117 4294967295 134512640 135730672 3221224576 3221222916 135344689 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 62568 62117 301 301 0 62267 0
vsize: 0

Child status: 1
Real time (s): 120.186
CPU time (s): 120.193
CPU user time (s): 114.951
CPU system time (s): 5.2422
CPU usage (%): 100.005
Max. virtual memory (Kb): 743392
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####