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/miplib3/normalized-mps-v2-20-10-bell3a.opb
MD5SUM26dd13d463ba85c3a30386739f6ae61e
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 1716
Biggest coefficient in the objective function 5134096531456000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 216401520151185266
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 5134096531456000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 216401520151185266
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1243.96
Number of variables2219
Total number of constraints194
Number of constraints which are clauses22
Number of constraints which are cardinality constraints (but not clauses)39
Number of constraints which are nor clauses,nor cardinality constraints133
Minimum length of a constraint1
Maximum length of a constraint191

Trace number 42497 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 09:23:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25717 boxname=wulflinc3 idbench=1017 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  26dd13d463ba85c3a30386739f6ae61e  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-bell3a.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-bell3a.opb
IDLAUNCH: 25717
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        761656 kB
Buffers:          8100 kB
Cached:         243088 kB
SwapCached:        820 kB
Active:          32596 kB
Inactive:       220700 kB
HighTotal:      131008 kB
HighFree:        14112 kB
LowTotal:       903652 kB
LowFree:        747544 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            13964 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:26:03 (client local time) WITH STATUS 1 IN 151.503 SECONDS
stats: 25717 7 151.503 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 2831141305875703
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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): 0.90 0.95 0.90 2/54 20118
Raw data (stat): 20118 (runsolver) R 20117 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969645814 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+10.0014 s]
Raw data (loadavg): 0.91 0.95 0.90 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 25711 0 0 0 940 58 0 0 25 0 1 0 969645814 77344768 14800 4294967295 134512640 135730672 3221224576 3221200100 134550411 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18883 14800 301 301 0 18582 0
vsize: 75532
[startup+20.0027 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 50584 0 0 0 1888 110 0 0 25 0 1 0 969645814 151740416 28455 4294967295 134512640 135730672 3221224576 3221193452 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37046 28455 301 301 0 36745 0
vsize: 148184
[startup+30.0038 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 84921 0 0 0 2824 174 0 0 25 0 1 0 969645814 312119296 53394 4294967295 134512640 135730672 3221224576 3221200576 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 76201 53394 301 301 0 75900 0
vsize: 304804
[startup+40.0038 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 99488 0 0 0 3789 208 0 0 25 0 1 0 969645814 298582016 55435 4294967295 134512640 135730672 3221224576 3221204792 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72896 55436 301 301 0 72595 0
vsize: 291584
[startup+50.0039 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 139756 0 0 0 4721 276 0 0 25 0 1 0 969645814 493772800 94498 4294967295 134512640 135730672 3221224576 3221202352 135284048 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 120550 94498 301 301 0 120249 0
vsize: 482200
[startup+60.0051 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 149457 0 0 0 5696 301 0 0 25 0 1 0 969645814 431710208 84429 4294967295 134512640 135730672 3221224576 3221223072 134747714 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 105398 84429 301 301 0 105097 0
vsize: 421592
[startup+70.0054 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 149460 0 0 0 6695 302 0 0 25 0 1 0 969645814 431710208 84432 4294967295 134512640 135730672 3221224576 3221223072 134747592 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 105398 84432 301 301 0 105097 0
vsize: 421592
[startup+80.0055 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 149625 0 0 0 7694 302 0 0 25 0 1 0 969645814 432447488 84597 4294967295 134512640 135730672 3221224576 3221223168 134747445 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 105578 84597 301 301 0 105277 0
vsize: 422312
[startup+90.0069 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 179209 0 0 0 8626 370 0 0 25 0 1 0 969645814 534306816 89500 4294967295 134512640 135730672 3221224576 3220515584 134770679 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 130446 89500 301 301 0 130145 0
vsize: 521784
[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 194793 0 0 0 9587 408 0 0 25 0 1 0 969645814 587096064 104847 4294967295 134512640 135730672 3221224576 3221138608 134784086 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143334 104847 301 301 0 143033 0
vsize: 573336
[startup+110.008 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 212369 0 0 0 10551 445 0 0 25 0 1 0 969645814 615215104 122190 4294967295 134512640 135730672 3221224576 3221058632 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 150199 122191 301 301 0 149898 0
vsize: 600796
[startup+120.009 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 231187 0 0 0 11510 486 0 0 25 0 1 0 969645814 645099520 140757 4294967295 134512640 135730672 3221224576 3220507144 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157495 140757 301 301 0 157194 0
vsize: 629980
[startup+130.009 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 243973 0 0 0 12480 516 0 0 25 0 1 0 969645814 667885568 147180 4294967295 134512640 135730672 3221224576 3221222880 134787414 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163058 147180 301 301 0 162757 0
vsize: 652232
[startup+140.01 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 257558 0 0 0 13444 552 0 0 25 0 1 0 969645814 723439616 160765 4294967295 134512640 135730672 3221224576 3221223024 134739827 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 176621 160765 301 301 0 176320 0
vsize: 706484
[startup+150.011 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 260393 0 0 0 14423 572 0 0 25 0 1 0 969645814 403472384 97939 4294967295 134512640 135730672 3221224576 3221222832 135282716 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98504 97939 301 301 0 98203 0
vsize: 394016
[startup+151.556 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 20118
Raw data (stat): 20118 (pb2sat-v2) R 20117 20224 20223 0 -1 0 260393 0 0 0 14423 572 0 0 25 0 1 0 969645814 403472384 97939 4294967295 134512640 135730672 3221224576 3221222832 135282716 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98504 97939 301 301 0 98203 0
vsize: 0

Child status: 1
Real time (s): 151.556
CPU time (s): 151.503
CPU user time (s): 145.579
CPU system time (s): 5.9241
CPU usage (%): 99.9653
Max. virtual memory (Kb): 706484
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####