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-mkc1.opb
MD5SUMaa2dd2336a4c1c55f4fb3e1e24927c56
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 25306
Biggest coefficient in the objective function 20480000
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 56454927307
Number of bits of the sum of numbers in the objective function 36
Biggest number in a constraint 536870912000
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 1129539816832
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.25396
Number of variables27743
Total number of constraints8734
Number of constraints which are clauses712
Number of constraints which are cardinality constraints (but not clauses)3174
Number of constraints which are nor clauses,nor cardinality constraints4848
Minimum length of a constraint1
Maximum length of a constraint25072

Trace number 42595 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 12:14:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25816 boxname=wulflinc5 idbench=1116 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  aa2dd2336a4c1c55f4fb3e1e24927c56  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-mkc1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-mkc1.opb
IDLAUNCH: 25816
/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:        686296 kB
Buffers:         30456 kB
Cached:         294440 kB
SwapCached:        688 kB
Active:          39640 kB
Inactive:       287348 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        686044 kB
SwapTotal:     2097136 kB
SwapFree:      2095520 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15744 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 12:16:37 (client local time) WITH STATUS 1 IN 126.985 SECONDS
stats: 25816 7 126.985 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 13703
Raw data (stat): 13703 (runsolver) R 13702 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970681020 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+10.001 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 2206 0 0 0 993 4 0 0 25 0 1 0 970681020 8093696 1530 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1976 1530 301 301 0 1675 0
vsize: 7904
[startup+20.0014 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 5733 0 0 0 1985 13 0 0 25 0 1 0 970681020 18395136 3629 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 4491 3629 301 301 0 4190 0
vsize: 17964
[startup+30.0025 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 22654 0 0 0 2948 49 0 0 25 0 1 0 970681020 75280384 14550 4294967295 134512640 135730672 3221224576 3212369656 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18379 14551 301 301 0 18078 0
vsize: 73516
[startup+40.0021 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 54368 0 0 0 3881 117 0 0 25 0 1 0 970681020 166920192 31949 4294967295 134512640 135730672 3221224576 3209618128 134610046 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 40752 31951 301 301 0 40451 0
vsize: 163008
[startup+50.0022 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 82253 0 0 0 4826 171 0 0 25 0 1 0 970681020 254967808 49899 4294967295 134512640 135730672 3221224576 3209665928 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 62248 49899 301 301 0 61947 0
vsize: 248992
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 110229 0 0 0 5766 232 0 0 25 0 1 0 970681020 356294656 65356 4294967295 134512640 135730672 3221224576 3209591088 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86986 65357 301 301 0 86685 0
vsize: 347944
[startup+70.0024 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 150802 0 0 0 6691 307 0 0 25 0 1 0 970681020 558530560 104840 4294967295 134512640 135730672 3221224576 3210107000 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136360 104843 301 301 0 136059 0
vsize: 545440
[startup+80.0039 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 165590 0 0 0 7659 340 0 0 25 0 1 0 970681020 496148480 100851 4294967295 134512640 135730672 3221224576 3209770832 134551724 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 121130 100852 301 301 0 120829 0
vsize: 484520
[startup+90.0039 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 203638 0 0 0 8575 423 0 0 25 0 1 0 970681020 606138368 114101 4294967295 134512640 135730672 3221224576 3209592016 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 147983 114102 301 301 0 147682 0
vsize: 591932
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 221107 0 0 0 9539 460 0 0 25 0 1 0 970681020 666456064 131352 4294967295 134512640 135730672 3221224576 3210248712 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162709 131352 301 301 0 162408 0
vsize: 650836
[startup+110.005 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 241455 0 0 0 10494 505 0 0 25 0 1 0 970681020 698540032 151451 4294967295 134512640 135730672 3221224576 3209606536 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170542 151452 301 301 0 170241 0
vsize: 682168
[startup+120.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 251960 0 0 0 11473 527 0 0 25 0 1 0 970681020 716713984 161631 4294967295 134512640 135730672 3221224576 3221223040 134736337 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174979 161631 301 301 0 174678 0
vsize: 699916
[startup+126.992 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 13703
Raw data (stat): 13703 (pb2sat-v2) R 13702 7266 7265 0 -1 0 251960 0 0 0 11473 527 0 0 25 0 1 0 970681020 716713984 161631 4294967295 134512640 135730672 3221224576 3221223040 134736337 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174979 161631 301 301 0 174678 0
vsize: 0

Child status: 1
Real time (s): 126.992
CPU time (s): 126.985
CPU user time (s): 121.389
CPU system time (s): 5.59615
CPU usage (%): 99.9943
Max. virtual memory (Kb): 699916
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####