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-A2C1S1.opb
MD5SUM84023cc1c9d18b4d21ad2d86c1617614
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 37632
Biggest coefficient in the objective function 31125091123200
Number of bits for the biggest coefficient in the objective function 45
Sum of the numbers in the objective function 14624065344515792
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 31125091123200
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 14624065344515792
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.945856
Number of variables103872
Total number of constraints3504
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)192
Number of constraints which are nor clauses,nor cardinality constraints3312
Minimum length of a constraint1
Maximum length of a constraint725

Trace number 42626 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 13:00:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25845 boxname=wulflinc2 idbench=1145 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  84023cc1c9d18b4d21ad2d86c1617614  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-A2C1S1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-A2C1S1.opb
IDLAUNCH: 25845
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        680676 kB
Buffers:         22328 kB
Cached:         308760 kB
SwapCached:       1432 kB
Active:          34552 kB
Inactive:       298640 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        680396 kB
SwapTotal:     2097136 kB
SwapFree:      2094708 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15060 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:02:56 (client local time) WITH STATUS 1 IN 133.703 SECONDS
stats: 25845 7 133.703 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): 0.89 0.95 0.90 2/54 10547
Raw data (stat): 10547 (runsolver) R 10546 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970962240 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+9.9999 s]
Raw data (loadavg): 0.90 0.95 0.90 3/54 10547
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 2218 0 0 0 994 5 0 0 25 0 1 0 970962240 8093696 1541 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1976 1541 301 301 0 1675 0
vsize: 7904
[startup+20.0006 s]
Raw data (loadavg): 0.92 0.95 0.91 3/54 10547
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 2734 0 0 0 1992 6 0 0 25 0 1 0 970962240 9445376 2049 4294967295 134512640 135730672 3221224576 3221221664 134561656 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2306 2049 301 301 0 2005 0
vsize: 9224
[startup+30.0003 s]
Raw data (loadavg): 0.93 0.96 0.91 3/54 10547
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 3875 0 0 0 2989 10 0 0 25 0 1 0 970962240 13414400 2478 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3275 2478 301 301 0 2974 0
vsize: 13100
[startup+40 s]
Raw data (loadavg): 0.94 0.96 0.91 3/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 31827 0 0 0 3928 71 0 0 25 0 1 0 970962240 96641024 20660 4294967295 134512640 135730672 3221224576 3221015440 134550701 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 23594 20661 301 301 0 23293 0
vsize: 94376
[startup+50.0007 s]
Raw data (loadavg): 0.95 0.96 0.91 3/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 57337 0 0 0 4878 121 0 0 25 0 1 0 970962240 173170688 35222 4294967295 134512640 135730672 3221224576 3220930024 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42278 35222 301 301 0 41977 0
vsize: 169112
[startup+60.0017 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 94108 0 0 0 5801 199 0 0 25 0 1 0 970962240 281051136 50308 4294967295 134512640 135730672 3221224576 3221006592 134608047 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68616 50308 301 301 0 68315 0
vsize: 274464
[startup+70.0024 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 106956 0 0 0 6773 226 0 0 25 0 1 0 970962240 316903424 62934 4294967295 134512640 135730672 3221224576 3220953136 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 77369 62936 301 301 0 77068 0
vsize: 309476
[startup+80.0031 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 152126 0 0 0 7685 315 0 0 25 0 1 0 970962240 527503360 106897 4294967295 134512640 135730672 3221224576 3221043200 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 128785 106897 301 301 0 128484 0
vsize: 515140
[startup+90.0028 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 185231 0 0 0 8608 393 0 0 25 0 1 0 970962240 556859392 97861 4294967295 134512640 135730672 3221224576 3220982432 134611296 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135952 97861 301 301 0 135651 0
vsize: 543808
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 197304 0 0 0 9581 419 0 0 25 0 1 0 970962240 590413824 109715 4294967295 134512640 135730672 3221224576 3220902032 134743393 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144144 109715 301 301 0 143843 0
vsize: 576576
[startup+110.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 211164 0 0 0 10552 448 0 0 25 0 1 0 970962240 590413824 123325 4294967295 134512640 135730672 3221224576 3221011180 135291216 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144144 123325 301 301 0 143843 0
vsize: 576576
[startup+120.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 221851 0 0 0 11528 472 0 0 25 0 1 0 970962240 643178496 133829 4294967295 134512640 135730672 3221224576 3220966464 134784084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157026 133829 301 301 0 156725 0
vsize: 628104
[startup+130.007 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 239170 0 0 0 12492 509 0 0 25 0 1 0 970962240 664666112 150783 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 162272 150783 301 301 0 161971 0
vsize: 649088
[startup+133.702 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 10549
Raw data (stat): 10547 (pb2sat-v2) R 10546 31399 31398 0 -1 0 239170 0 0 0 12492 509 0 0 25 0 1 0 970962240 664666112 150783 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 162272 150783 301 301 0 161971 0
vsize: 0

Child status: 1
Real time (s): 133.701
CPU time (s): 133.703
CPU user time (s): 128.304
CPU system time (s): 5.39818
CPU usage (%): 100.001
Max. virtual memory (Kb): 649088
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####