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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos7.opb
MD5SUMdff67dcbbc32b17a1cdb11074adc13dc
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 4506
Biggest coefficient in the objective function 8053063680000
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 590484474471966
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 1073741839777215
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1266.33
Number of variables33010
Total number of constraints2578
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)566
Number of constraints which are nor clauses,nor cardinality constraints2012
Minimum length of a constraint1
Maximum length of a constraint441

Trace number 35356 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-28 12:59:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24662 boxname=wulflinc18 idbench=1134 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  dff67dcbbc32b17a1cdb11074adc13dc  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-neos7.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-neos7.opb
IDLAUNCH: 24662
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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	: 3
cpu MHz		: 451.177
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:        734212 kB
Buffers:         33372 kB
Cached:         234912 kB
SwapCached:        792 kB
Active:          19624 kB
Inactive:       250736 kB
HighTotal:      131008 kB
HighFree:        36400 kB
LowTotal:       903652 kB
LowFree:        697812 kB
SwapTotal:     2097892 kB
SwapFree:      2096240 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            24248 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:00:57 (client local time) WITH STATUS 1 IN 109.87 SECONDS
stats: 24662 7 109.87 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 2350
Raw data (stat): 2350 (runsolver) R 2349 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864973486 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+10.0004 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 2350
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 29996 0 0 0 934 65 0 0 25 0 1 0 864973486 92880896 18840 4294967295 134512640 135726644 3221224576 3219421384 135278569 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22676 18841 300 300 0 22376 0
vsize: 90704
[startup+20.0049 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 2350
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 59681 0 0 0 1874 125 0 0 25 0 1 0 864973486 181964800 37285 4294967295 134512640 135726644 3221224576 3219428152 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44425 37285 300 300 0 44125 0
vsize: 177700
[startup+30.0163 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 2350
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 97613 0 0 0 2802 198 0 0 25 0 1 0 864973486 296169472 53019 4294967295 134512640 135726644 3221224576 3219419680 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72307 53019 300 300 0 72007 0
vsize: 289228
[startup+40.0326 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 2350
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 116543 0 0 0 3768 234 0 0 25 0 1 0 864973486 355270656 71715 4294967295 134512640 135726644 3221224576 3219448552 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86736 71716 300 300 0 86436 0
vsize: 346944
[startup+50.0491 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 2350
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 157820 0 0 0 4690 314 0 0 25 0 1 0 864973486 487878656 94413 4294967295 134512640 135726644 3221224576 3219406948 135277555 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119111 94413 300 300 0 118811 0
vsize: 476444
[startup+60.0493 s]
Raw data (loadavg): 0.97 0.96 0.91 2/58 2354
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 193453 0 0 0 5616 387 0 0 25 0 1 0 864973486 592736256 104265 4294967295 134512640 135726644 3221224576 3219497664 134767136 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144711 104265 300 300 0 144411 0
vsize: 578844
[startup+70.0499 s]
Raw data (loadavg): 1.27 1.03 0.93 2/54 2403
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 205608 0 0 0 6587 416 0 0 25 0 1 0 864973486 629669888 116212 4294967295 134512640 135726644 3221224576 3219423824 134604379 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153728 116212 300 300 0 153428 0
vsize: 614912
[startup+80.0513 s]
Raw data (loadavg): 1.23 1.03 0.93 2/54 2403
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 226308 0 0 0 7545 459 0 0 25 0 1 0 864973486 661172224 136673 4294967295 134512640 135726644 3221224576 3219432400 135298011 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161419 136673 300 300 0 161119 0
vsize: 645676
[startup+90.0518 s]
Raw data (loadavg): 1.19 1.02 0.93 2/54 2403
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 246819 0 0 0 8506 497 0 0 25 0 1 0 864973486 692129792 156947 4294967295 134512640 135726644 3221224576 3219488632 135281314 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168977 156947 300 300 0 168677 0
vsize: 675908
[startup+100.052 s]
Raw data (loadavg): 1.16 1.02 0.93 2/54 2403
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 260744 0 0 0 9479 524 0 0 25 0 1 0 864973486 764198912 170693 4294967295 134512640 135726644 3221224576 3221222656 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186572 170693 300 300 0 186272 0
vsize: 746288
[startup+109.878 s]
Raw data (loadavg): 1.14 1.02 0.93 1/53 2403
Raw data (stat): 2350 (pb2sat) R 2349 24172 24171 0 -1 0 260744 0 0 0 9479 524 0 0 25 0 1 0 864973486 764198912 170693 4294967295 134512640 135726644 3221224576 3221222656 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186572 170693 300 300 0 186272 0
vsize: 0

Child status: 1
Real time (s): 109.878
CPU time (s): 109.87
CPU user time (s): 104.276
CPU system time (s): 5.59415
CPU usage (%): 99.9932
Max. virtual memory (Kb): 746288
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####