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/unibo/normalized-mps-v2-20-10-net12.opb
MD5SUM8fd050825d75dbe16d9da083f4b2fd63
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 478
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 1073761158741413
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 71583145981965762560
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 303620978593259257856
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1230.09
Number of variables780
Total number of constraints707
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)338
Number of constraints which are nor clauses,nor cardinality constraints369
Minimum length of a constraint1
Maximum length of a constraint101

Trace number 35387 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-28 13:03:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24693 boxname=wulflinc3 idbench=1165 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8fd050825d75dbe16d9da083f4b2fd63  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-net12.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-net12.opb
IDLAUNCH: 24693
/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:        831968 kB
Buffers:         33740 kB
Cached:         147240 kB
SwapCached:        240 kB
Active:          51008 kB
Inactive:       132564 kB
HighTotal:      131008 kB
HighFree:         1484 kB
LowTotal:       903652 kB
LowFree:        830484 kB
SwapTotal:     2097136 kB
SwapFree:      2096480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6324 kB
Slab:            13436 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:05:21 (client local time) WITH STATUS 1 IN 102.261 SECONDS
stats: 24693 7 102.261 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): 0.90 0.95 0.90 2/54 29009
Raw data (stat): 29009 (runsolver) R 29008 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806786254 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+10.0008 s]
Raw data (loadavg): 0.91 0.95 0.90 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 32001 0 0 0 934 65 0 0 25 0 1 0 806786254 92221440 20838 4294967295 134512640 135726644 3221224592 3221116836 134766464 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22515 20838 300 300 0 22215 0
vsize: 90060
[startup+20.0121 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 62917 0 0 0 1875 125 0 0 25 0 1 0 806786254 181288960 40512 4294967295 134512640 135726644 3221224592 3221152456 135280636 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44260 40512 300 300 0 43960 0
vsize: 177040
[startup+30.0129 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 102033 0 0 0 2795 205 0 0 25 0 1 0 806786254 332255232 57432 4294967295 134512640 135726644 3221224592 3221156168 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81117 57432 300 300 0 80817 0
vsize: 324468
[startup+40.0123 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 123172 0 0 0 3756 244 0 0 25 0 1 0 806786254 357531648 78305 4294967295 134512640 135726644 3221224592 3221125848 135280666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 87288 78305 300 300 0 86988 0
vsize: 349152
[startup+50.0136 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 174657 0 0 0 4658 342 0 0 25 0 1 0 806786254 696537088 110205 4294967295 134512640 135726644 3221224592 3221137408 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170053 110205 300 300 0 169753 0
vsize: 680212
[startup+60.014 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 201371 0 0 0 5605 396 0 0 25 0 1 0 806786254 629424128 112132 4294967295 134512640 135726644 3221224592 3221123184 135105735 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153668 112132 300 300 0 153368 0
vsize: 614672
[startup+70.0148 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 218812 0 0 0 6572 429 0 0 25 0 1 0 806786254 640372736 129311 4294967295 134512640 135726644 3221224592 3221136224 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156341 129311 300 300 0 156041 0
vsize: 625364
[startup+80.0232 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 241049 0 0 0 7530 471 0 0 25 0 1 0 806786254 672272384 151291 4294967295 134512640 135726644 3221224592 3221153744 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164129 151291 300 300 0 163829 0
vsize: 656516
[startup+90.0232 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 259126 0 0 0 8493 509 0 0 25 0 1 0 806786254 748421120 169159 4294967295 134512640 135726644 3221224592 3221147472 134558891 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182720 169159 300 300 0 182420 0
vsize: 730880
[startup+100.023 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 264910 0 0 0 9465 536 0 0 25 0 1 0 806786254 396992512 96495 4294967295 134512640 135726644 3221224592 3221222780 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 96922 96495 300 300 0 96622 0
vsize: 387688
[startup+102.263 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 29009
Raw data (stat): 29009 (pb2sat) R 29008 20224 20223 0 -1 0 264910 0 0 0 9465 536 0 0 25 0 1 0 806786254 396992512 96495 4294967295 134512640 135726644 3221224592 3221222780 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 96922 96495 300 300 0 96622 0
vsize: 0

Child status: 1
Real time (s): 102.263
CPU time (s): 102.261
CPU user time (s): 96.6853
CPU system time (s): 5.57615
CPU usage (%): 99.9987
Max. virtual memory (Kb): 730880
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####