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-v2-13-7/MIPLIB/miplib2003/normalized-mps-v2-13-7-a1c1s1.opb
MD5SUM60a85eb68562d07c063b16fa35f27512
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 27456
Biggest coefficient in the objective function 1310720000000
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 254165973806800
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 1310720000000
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 254165973806800
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.648901
Number of variables71616
Total number of constraints3312
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3312
Minimum length of a constraint33
Maximum length of a constraint545

Trace number 35572 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-05-28 13:24:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24866 boxname=wulflinc12 idbench=1338 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  60a85eb68562d07c063b16fa35f27512  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-a1c1s1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-a1c1s1.opb
IDLAUNCH: 24866
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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		: 451.091
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:        739968 kB
Buffers:         36064 kB
Cached:         222200 kB
SwapCached:        340 kB
Active:          25140 kB
Inactive:       244916 kB
HighTotal:      131008 kB
HighFree:        83636 kB
LowTotal:       903652 kB
LowFree:        656332 kB
SwapTotal:     2097136 kB
SwapFree:      2096008 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5380 kB
Slab:            18912 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:26:48 (client local time) WITH STATUS 1 IN 122.681 SECONDS
stats: 24866 7 122.681 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): 0.83 0.92 0.90 2/54 13020
Raw data (stat): 13020 (runsolver) R 13019 32284 32283 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806913622 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+10.0009 s]
Raw data (loadavg): 0.86 0.93 0.90 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 2208 0 0 0 992 6 0 0 25 0 1 0 806913622 8089600 1532 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1975 1532 300 300 0 1675 0
vsize: 7900
[startup+20.0006 s]
Raw data (loadavg): 0.88 0.93 0.90 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 22002 0 0 0 1944 54 0 0 25 0 1 0 806913622 75546624 14014 4294967295 134512640 135726644 3221224576 3210368912 135288897 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18444 14014 300 300 0 18144 0
vsize: 73776
[startup+30.0008 s]
Raw data (loadavg): 0.90 0.93 0.90 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 53556 0 0 0 2880 118 0 0 25 0 1 0 806913622 163807232 31263 4294967295 134512640 135726644 3221224576 3210262064 134767136 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 39992 31263 300 300 0 39692 0
vsize: 159968
[startup+40.0013 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 83414 0 0 0 3822 177 0 0 25 0 1 0 806913622 258883584 51200 4294967295 134512640 135726644 3221224576 3210317664 134767052 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 63204 51200 300 300 0 62904 0
vsize: 252816
[startup+50.0022 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 110315 0 0 0 4765 233 0 0 25 0 1 0 806913622 353177600 65588 4294967295 134512640 135726644 3221224576 3210535728 134554544 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86225 65588 300 300 0 85925 0
vsize: 344900
[startup+60.0024 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 132283 0 0 0 5725 274 0 0 25 0 1 0 806913622 528633856 87290 4294967295 134512640 135726644 3221224576 3210286160 134771783 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129061 87294 300 300 0 128761 0
vsize: 516244
[startup+70.0019 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 171363 0 0 0 6656 344 0 0 25 0 1 0 806913622 705429504 106790 4294967295 134512640 135726644 3221224576 3210258992 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 172224 106794 300 300 0 171924 0
vsize: 688896
[startup+80.0027 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 203946 0 0 0 7586 414 0 0 25 0 1 0 806913622 638316544 114614 4294967295 134512640 135726644 3221224576 3210300288 135279129 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155839 114614 300 300 0 155539 0
vsize: 623356
[startup+90.0029 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 223946 0 0 0 8543 456 0 0 25 0 1 0 806913622 664539136 134361 4294967295 134512640 135726644 3221224576 3210339752 134603643 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162241 134362 300 300 0 161941 0
vsize: 648964
[startup+100.004 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 245159 0 0 0 9500 500 0 0 25 0 1 0 806913622 696717312 155329 4294967295 134512640 135726644 3221224576 3210515352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170097 155330 300 300 0 169797 0
vsize: 680388
[startup+110.004 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 262075 0 0 0 10465 535 0 0 25 0 1 0 806913622 771919872 172044 4294967295 134512640 135726644 3221224576 3210398880 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 188457 172044 300 300 0 188157 0
vsize: 753828
[startup+120.005 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 262379 0 0 0 11450 550 0 0 25 0 1 0 806913622 412123136 100187 4294967295 134512640 135726644 3221224576 3221222764 135277555 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100616 100187 300 300 0 100316 0
vsize: 402464
[startup+122.681 s]
Raw data (loadavg): 0.98 0.94 0.91 1/53 13020
Raw data (stat): 13020 (pb2sat) R 13019 32284 32283 0 -1 0 262379 0 0 0 11450 550 0 0 25 0 1 0 806913622 412123136 100187 4294967295 134512640 135726644 3221224576 3221222764 135277555 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100616 100187 300 300 0 100316 0
vsize: 0

Child status: 1
Real time (s): 122.68
CPU time (s): 122.681
CPU user time (s): 116.971
CPU system time (s): 5.71013
CPU usage (%): 100.001
Max. virtual memory (Kb): 753828
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####