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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-fffff800.opb
MD5SUM41762d7ce490e5551e5099dd159735cc
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 240
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 8589934584
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint -2340616713709551616
Number of bits of the biggest number in a constraint 64
Biggest sum of numbers in a constraint 392918753328864690176
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.228964
Number of variables25620
Total number of constraints524
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 constraints524
Minimum length of a constraint30
Maximum length of a constraint7530

Trace number 35043 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 12:04:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24356 boxname=wulflinc9 idbench=828 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  41762d7ce490e5551e5099dd159735cc  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-fffff800.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-fffff800.opb
IDLAUNCH: 24356
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        690608 kB
Buffers:         35216 kB
Cached:         284512 kB
SwapCached:        552 kB
Active:          27808 kB
Inactive:       293976 kB
HighTotal:      131008 kB
HighFree:        13972 kB
LowTotal:       903652 kB
LowFree:        676636 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16748 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:06:38 (client local time) WITH STATUS 1 IN 104.45 SECONDS
stats: 24356 7 104.45 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 0.94 0.90 2/54 18057
Raw data (stat): 18057 (runsolver) R 18056 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806440205 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+10.0009 s]
Raw data (loadavg): 0.86 0.94 0.90 2/54 18057
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 28286 0 0 0 937 62 0 0 25 0 1 0 806440205 89767936 17333 4294967295 134512640 135726644 3221224576 3218458844 134634295 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21916 17333 300 300 0 21616 0
vsize: 87664
[startup+20.0005 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 18057
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 57959 0 0 0 1874 125 0 0 25 0 1 0 806440205 177246208 36036 4294967295 134512640 135726644 3221224576 3218755208 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43273 36037 300 300 0 42973 0
vsize: 173092
[startup+30.0003 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 18057
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 99013 0 0 0 2790 209 0 0 25 0 1 0 806440205 334090240 55397 4294967295 134512640 135726644 3221224576 3219010944 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81565 55397 300 300 0 81265 0
vsize: 326260
[startup+40.001 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 18057
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 117062 0 0 0 3753 246 0 0 25 0 1 0 806440205 351932416 73202 4294967295 134512640 135726644 3221224576 3219167008 134767052 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85921 73203 300 300 0 85621 0
vsize: 343684
[startup+50.0019 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 18059
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 163377 0 0 0 4671 329 0 0 25 0 1 0 806440205 566992896 118311 4294967295 134512640 135726644 3221224576 3219329104 134772474 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138426 118311 300 300 0 138126 0
vsize: 553704
[startup+60.0017 s]
Raw data (loadavg): 0.94 0.95 0.90 2/54 18059
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 197020 0 0 0 5594 406 0 0 25 0 1 0 806440205 629903360 109806 4294967295 134512640 135726644 3221224576 3219659472 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153785 109806 300 300 0 153485 0
vsize: 615140
[startup+70.0039 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 18059
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 213282 0 0 0 6558 442 0 0 25 0 1 0 806440205 636391424 125806 4294967295 134512640 135726644 3221224576 3219907576 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155369 125807 300 300 0 155069 0
vsize: 621476
[startup+80.0061 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 18059
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 235301 0 0 0 7511 490 0 0 25 0 1 0 806440205 667885568 147569 4294967295 134512640 135726644 3221224576 3220113824 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163058 147570 300 300 0 162758 0
vsize: 652232
[startup+90.0059 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 18059
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 253340 0 0 0 8472 528 0 0 25 0 1 0 806440205 744169472 165400 4294967295 134512640 135726644 3221224576 3220373896 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 181682 165400 300 300 0 181382 0
vsize: 726728
[startup+100.007 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18059
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 265000 0 0 0 9447 552 0 0 25 0 1 0 806440205 761708544 176894 4294967295 134512640 135726644 3221224576 3221222828 135277577 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185964 176894 300 300 0 185664 0
vsize: 743856
[startup+104.463 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 18059
Raw data (stat): 18057 (pb2sat) R 18056 3944 3943 0 -1 0 265000 0 0 0 9447 552 0 0 25 0 1 0 806440205 761708544 176894 4294967295 134512640 135726644 3221224576 3221222828 135277577 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185964 176894 300 300 0 185664 0
vsize: 0

Child status: 1
Real time (s): 104.463
CPU time (s): 104.45
CPU user time (s): 98.568
CPU system time (s): 5.8821
CPU usage (%): 99.988
Max. virtual memory (Kb): 743856
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####