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/MIPLIB/miplib2003/normalized-mps-v2-20-10-rout.opb
MD5SUM26f8714f5bbc8fb10d3a4aeb3a0f315a
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 26904326400
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 81230087655
Number of bits of the biggest sum of numbers37
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.218966
Number of variables7561
Total number of constraints606
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)314
Number of constraints which are nor clauses,nor cardinality constraints292
Minimum length of a constraint1
Maximum length of a constraint917

Trace number 42480 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 08:49:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25700 boxname=wulflinc5 idbench=1000 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  26f8714f5bbc8fb10d3a4aeb3a0f315a  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-rout.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-rout.opb
IDLAUNCH: 25700
/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:        842820 kB
Buffers:         27024 kB
Cached:         141676 kB
SwapCached:        688 kB
Active:          21960 kB
Inactive:       148804 kB
HighTotal:      131008 kB
HighFree:        81928 kB
LowTotal:       903652 kB
LowFree:        760892 kB
SwapTotal:     2097136 kB
SwapFree:      2095520 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15520 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 08:51:06 (client local time) WITH STATUS 1 IN 112.277 SECONDS
stats: 25700 7 112.277 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): 0.93 0.96 0.92 2/54 11342
Raw data (stat): 11342 (runsolver) R 11341 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969449262 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+10.0005 s]
Raw data (loadavg): 0.94 0.96 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 29378 0 0 0 933 66 0 0 25 0 1 0 969449262 90050560 18228 4294967295 134512640 135730672 3221224576 3221082976 134786196 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21985 18228 301 301 0 21684 0
vsize: 87940
[startup+20.0017 s]
Raw data (loadavg): 0.95 0.96 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 57659 0 0 0 1877 122 0 0 25 0 1 0 969449262 176857088 35285 4294967295 134512640 135730672 3221224576 3221064000 134546473 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43178 35285 301 301 0 42877 0
vsize: 172712
[startup+30.0029 s]
Raw data (loadavg): 0.95 0.96 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 95962 0 0 0 2804 195 0 0 25 0 1 0 969449262 294326272 51393 4294967295 134512640 135730672 3221224576 3221068640 134546341 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71857 51393 301 301 0 71556 0
vsize: 287428
[startup+40.0027 s]
Raw data (loadavg): 0.96 0.96 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 112477 0 0 0 3771 228 0 0 25 0 1 0 969449262 346804224 67692 4294967295 134512640 135730672 3221224576 3221067248 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84669 67692 301 301 0 84368 0
vsize: 338676
[startup+50.003 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 156536 0 0 0 4695 304 0 0 25 0 1 0 969449262 555245568 110538 4294967295 134512640 135730672 3221224576 3221102608 134776110 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135558 110538 301 301 0 135257 0
vsize: 542232
[startup+60.0032 s]
Raw data (loadavg): 0.97 0.97 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 190347 0 0 0 5617 383 0 0 25 0 1 0 969449262 589410304 101183 4294967295 134512640 135730672 3221224576 3221112208 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143899 101183 301 301 0 143598 0
vsize: 575596
[startup+70.0049 s]
Raw data (loadavg): 0.97 0.97 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 201409 0 0 0 6590 410 0 0 25 0 1 0 969449262 622964736 112037 4294967295 134512640 135730672 3221224576 3221087984 135284107 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152091 112037 301 301 0 151790 0
vsize: 608364
[startup+80.0052 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 220983 0 0 0 7552 448 0 0 25 0 1 0 969449262 652943360 131381 4294967295 134512640 135730672 3221224576 3221124668 135109328 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159410 131381 301 301 0 159109 0
vsize: 637640
[startup+90.0054 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 240174 0 0 0 8515 485 0 0 25 0 1 0 969449262 681926656 150353 4294967295 134512640 135730672 3221224576 3221067292 135291216 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166486 150353 301 301 0 166185 0
vsize: 665944
[startup+100.006 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 255324 0 0 0 9485 515 0 0 25 0 1 0 969449262 754974720 165330 4294967295 134512640 135730672 3221224576 3221088896 134785978 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184320 165330 301 301 0 184019 0
vsize: 737280
[startup+110.007 s]
Raw data (loadavg): 0.99 0.97 0.92 2/54 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 258761 0 0 0 10465 535 0 0 25 0 1 0 969449262 400302080 97139 4294967295 134512640 135730672 3221224576 3221222764 135281244 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97730 97139 301 301 0 97429 0
vsize: 390920
[startup+112.276 s]
Raw data (loadavg): 0.99 0.97 0.92 1/53 11342
Raw data (stat): 11342 (pb2sat-v2) R 11341 7266 7265 0 -1 0 258761 0 0 0 10465 535 0 0 25 0 1 0 969449262 400302080 97139 4294967295 134512640 135730672 3221224576 3221222764 135281244 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97730 97139 301 301 0 97429 0
vsize: 0

Child status: 1
Real time (s): 112.275
CPU time (s): 112.277
CPU user time (s): 106.719
CPU system time (s): 5.55815
CPU usage (%): 100.002
Max. virtual memory (Kb): 737280
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####