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-neos3.opb
MD5SUMaa121475b5e53120a1d24de3f0361b26
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 155
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 10737418235
Number of bits of the sum of numbers in the objective function 34
Biggest number in a constraint 2454208150643933184000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 289272765430218954375168
Number of bits of the biggest sum of numbers78
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.404937
Number of variables42220
Total number of constraints2841
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1377
Number of constraints which are nor clauses,nor cardinality constraints1464
Minimum length of a constraint1
Maximum length of a constraint4780

Trace number 42609 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 12:43:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25830 boxname=wulflinc5 idbench=1130 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  aa121475b5e53120a1d24de3f0361b26  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-neos3.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-neos3.opb
IDLAUNCH: 25830
/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:        721528 kB
Buffers:         17888 kB
Cached:         271672 kB
SwapCached:        664 kB
Active:          27316 kB
Inactive:       264304 kB
HighTotal:      131008 kB
HighFree:        13972 kB
LowTotal:       903652 kB
LowFree:        707556 kB
SwapTotal:     2097136 kB
SwapFree:      2095532 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15736 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 12:44:43 (client local time) WITH STATUS 1 IN 100.939 SECONDS
stats: 25830 7 100.939 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 0.94 0.90 1/54 14168
Raw data (stat): 14168 (runsolver) R 14167 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970852262 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+10.0001 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 28044 0 0 0 940 58 0 0 25 0 1 0 970852262 89616384 17075 4294967295 134512640 135730672 3221224576 3220114688 134770873 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21879 17075 301 301 0 21578 0
vsize: 87516
[startup+20.0008 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 56329 0 0 0 1886 113 0 0 25 0 1 0 970852262 176914432 34144 4294967295 134512640 135730672 3221224576 3220112440 135284227 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43192 34146 301 301 0 42891 0
vsize: 172768
[startup+30.0006 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 82710 0 0 0 2837 162 0 0 25 0 1 0 970852262 239333376 50385 4294967295 134512640 135730672 3221224576 3220113296 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 58431 50385 301 301 0 58130 0
vsize: 233724
[startup+40.0003 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 112272 0 0 0 3780 219 0 0 25 0 1 0 970852262 349982720 67427 4294967295 134512640 135730672 3221224576 3220112760 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85445 67429 301 301 0 85144 0
vsize: 341780
[startup+50.0011 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 150627 0 0 0 4708 291 0 0 25 0 1 0 970852262 468058112 85720 4294967295 134512640 135730672 3221224576 3220113632 135288511 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 114272 85720 301 301 0 113971 0
vsize: 457088
[startup+60.0008 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 164347 0 0 0 5684 316 0 0 25 0 1 0 970852262 473870336 99175 4294967295 134512640 135730672 3221224576 3220113760 134770772 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 115691 99175 301 301 0 115390 0
vsize: 462764
[startup+70.0019 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 205796 0 0 0 6601 398 0 0 25 0 1 0 970852262 600621056 115821 4294967295 134512640 135730672 3221224576 3220113384 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146636 115821 301 301 0 146335 0
vsize: 586544
[startup+80.0023 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 222575 0 0 0 7569 431 0 0 25 0 1 0 970852262 660127744 132375 4294967295 134512640 135730672 3221224576 3220112720 135288351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161164 132376 301 301 0 160863 0
vsize: 644656
[startup+90.0021 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 242045 0 0 0 8533 467 0 0 25 0 1 0 970852262 691462144 151584 4294967295 134512640 135730672 3221224576 3220112456 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168814 151585 301 301 0 168513 0
vsize: 675256
[startup+100.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 244245 0 0 0 9517 483 0 0 25 0 1 0 970852262 388677632 94439 4294967295 134512640 135730672 3221224576 3221222832 135282716 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 94892 94439 301 301 0 94591 0
vsize: 379568
[startup+100.936 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 14168
Raw data (stat): 14168 (pb2sat-v2) R 14167 7266 7265 0 -1 0 244245 0 0 0 9517 483 0 0 25 0 1 0 970852262 388677632 94439 4294967295 134512640 135730672 3221224576 3221222832 135282716 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 94892 94439 301 301 0 94591 0
vsize: 0

Child status: 1
Real time (s): 100.936
CPU time (s): 100.939
CPU user time (s): 95.9104
CPU system time (s): 5.02823
CPU usage (%): 100.003
Max. virtual memory (Kb): 675256
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####