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-pilot.opb
MD5SUMd9327b817828dc5afade576c2194d741
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 840
Biggest coefficient in the objective function 3784939929600
Number of bits for the biggest coefficient in the objective function 42
Sum of the numbers in the objective function 93738734889723
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 13851269529600000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 368128606591816686
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark5.13622
Number of variables86785
Total number of constraints2515
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 constraints2515
Minimum length of a constraint10
Maximum length of a constraint7620

Trace number 42336 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 05:45:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25554 boxname=wulflinc5 idbench=854 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d9327b817828dc5afade576c2194d741  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-pilot.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-pilot.opb
IDLAUNCH: 25554
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        710264 kB
Buffers:         34648 kB
Cached:         266096 kB
SwapCached:        700 kB
Active:          93412 kB
Inactive:       209496 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        710012 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15680 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:47:22 (client local time) WITH STATUS 1 IN 105.432 SECONDS
stats: 25554 7 105.432 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): 0.92 0.95 0.90 2/54 9412
Raw data (stat): 9412 (runsolver) R 9411 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968347428 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+9.99972 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 27426 0 0 0 948 51 0 0 25 0 1 0 968347428 88436736 16505 4294967295 134512640 135730672 3221224576 3221185600 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21591 16505 301 301 0 21290 0
vsize: 86364
[startup+20.0005 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 56302 0 0 0 1892 107 0 0 25 0 1 0 968347428 176144384 33969 4294967295 134512640 135730672 3221224576 3221182392 135291151 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43004 33969 301 301 0 42703 0
vsize: 172016
[startup+30.0002 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 83012 0 0 0 2844 155 0 0 25 0 1 0 968347428 238899200 50016 4294967295 134512640 135730672 3221224576 3221181040 134608764 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 58325 50016 301 301 0 58024 0
vsize: 233300
[startup+40 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 112832 0 0 0 3780 219 0 0 25 0 1 0 968347428 350425088 67322 4294967295 134512640 135730672 3221224576 3221186624 134607963 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85553 67322 301 301 0 85252 0
vsize: 342212
[startup+50.0007 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 152253 0 0 0 4709 291 0 0 25 0 1 0 968347428 476356608 86562 4294967295 134512640 135730672 3221224576 3221181424 134546498 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116298 86562 301 301 0 115997 0
vsize: 465192
[startup+60.0005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 164670 0 0 0 5684 315 0 0 25 0 1 0 968347428 476692480 98347 4294967295 134512640 135730672 3221224576 3221181388 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116380 98347 301 301 0 116079 0
vsize: 465520
[startup+70.0012 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 204744 0 0 0 6604 396 0 0 25 0 1 0 968347428 597766144 113634 4294967295 134512640 135730672 3221224576 3221182056 135284930 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145939 113634 301 301 0 145638 0
vsize: 583756
[startup+80.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 221215 0 0 0 7575 426 0 0 25 0 1 0 968347428 657498112 129902 4294967295 134512640 135730672 3221224576 3221183696 134786628 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160522 129902 301 301 0 160221 0
vsize: 642088
[startup+90.0017 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 240239 0 0 0 8540 460 0 0 25 0 1 0 968347428 687620096 148692 4294967295 134512640 135730672 3221224576 3221182912 134608725 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167876 148692 301 301 0 167575 0
vsize: 671504
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 250115 0 0 0 9510 490 0 0 25 0 1 0 968347428 391626752 94791 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95612 94791 301 301 0 95311 0
vsize: 382448
[startup+105.421 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 9412
Raw data (stat): 9412 (pb2sat-v2) R 9411 7266 7265 0 -1 0 250115 0 0 0 9510 490 0 0 25 0 1 0 968347428 391626752 94791 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95612 94791 301 301 0 95311 0
vsize: 0

Child status: 1
Real time (s): 105.421
CPU time (s): 105.432
CPU user time (s): 100.322
CPU system time (s): 5.11022
CPU usage (%): 100.01
Max. virtual memory (Kb): 671504
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####