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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-20-10/MIPLIB/miplib3/normalized-mps-v2-20-10-mas76.opb
MD5SUM4a13dc0bd882da2f4fbd9bf80867a673
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 503502750032
Optimality of the best value was proved NO
Number of terms in the objective function 240
Biggest coefficient in the objective function 1934281311383406679529881600000
Number of bits for the biggest coefficient in the objective function 101
Sum of the numbers in the objective function 3868562622766813359059763200000
Number of bits of the sum of numbers in the objective function 102
Biggest number in a constraint 1208925819614629174706176000000000
Number of bits of the biggest number in a constraint 110
Biggest sum of numbers in a constraint 2417851639229258349412352000000000
Number of bits of the biggest sum of numbers111
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark9.1916
Number of variables240
Total number of constraints163
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)151
Number of constraints which are nor clauses,nor cardinality constraints12
Minimum length of a constraint1
Maximum length of a constraint239

Trace number 10084

Launcher Data

LAUNCH ON wulflinc20 THE 2005-09-23 16:54:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8845 boxname=wulflinc20 idbench=641 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4a13dc0bd882da2f4fbd9bf80867a673  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-mas76.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-mas76.opb
IDLAUNCH: 8845
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.012
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	: 3
cpu MHz		: 451.012
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        935540 kB
Buffers:         11908 kB
Cached:          70304 kB
SwapCached:          0 kB
Active:          45820 kB
Inactive:        39344 kB
HighTotal:      131008 kB
HighFree:        56224 kB
LowTotal:       903652 kB
LowFree:        879316 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8372 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:56:19 (client local time) WITH STATUS 1 IN 109.22 SECONDS
stats: 8845 7 109.22 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21785002 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8298/statm): 373 2 364 364 0 9 0
[pid=8298] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-mas76.opb

[startup+10.002 s]
Raw data (loadavg): 0.94 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 30486 0 0 0 930 65 0 0 25 0 1 0 21785002 98947072 19343 4294967295 134512640 135987407 3221224560 3221155532 134559721 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8298/statm): 24157 19343 364 364 0 23793 0
[pid=8298] vsize: 96628
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96628

[startup+20.0027 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 60157 0 0 0 1864 127 0 0 25 0 1 0 21785002 194965504 37800 4294967295 134512640 135987407 3221224560 3221152384 134878604 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8298/statm): 47599 37800 364 364 0 47235 0
[pid=8298] vsize: 190396
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 190396

[startup+30.0034 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 90808 0 0 0 2800 188 0 0 25 0 1 0 21785002 279060480 58528 4294967295 134512640 135987407 3221224560 3221155468 134636966 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8298/statm): 68130 58528 364 364 0 67766 0
[pid=8298] vsize: 272520
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 272520

[startup+40.0041 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 118582 0 0 0 3741 245 0 0 25 0 1 0 21785002 385789952 73819 4294967295 134512640 135987407 3221224560 3221156172 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8298/statm): 94187 73820 364 364 0 93823 0
[pid=8298] vsize: 376748
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 376748

[startup+50.0038 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 140624 0 0 0 4697 288 0 0 25 0 1 0 21785002 563359744 95516 4294967295 134512640 135987407 3221224560 3221153008 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8298/statm): 137539 95518 364 364 0 137175 0
[pid=8298] vsize: 550156
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 550156

[startup+60.0036 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 179905 0 0 0 5617 363 0 0 25 0 1 0 21785002 553996288 115031 4294967295 134512640 135987407 3221224560 3221156224 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8298/statm): 135253 115031 364 364 0 134889 0
[pid=8298] vsize: 541012
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 541012

[startup+70.0033 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 219857 0 0 0 6531 447 0 0 25 0 1 0 21785002 676691968 130208 4294967295 134512640 135987407 3221224560 3221155696 134856594 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8298/statm): 165208 130208 364 364 0 164844 0
[pid=8298] vsize: 660832
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 660832

[startup+80.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 234764 0 0 0 7495 481 0 0 25 0 1 0 21785002 731602944 144922 4294967295 134512640 135987407 3221224560 3221153008 134856581 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8298/statm): 178614 144923 364 364 0 178250 0
[pid=8298] vsize: 714456
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 714456

[startup+90.0038 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 252214 0 0 0 8461 514 0 0 25 0 1 0 21785002 756338688 162151 4294967295 134512640 135987407 3221224560 3221156224 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8298/statm): 184653 162152 364 364 0 184289 0
[pid=8298] vsize: 738612
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 738612

[startup+100.003 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 8298
Raw data (/proc/8298/stat): 8298 (pb2sat) R 8297 8298 4059 0 -1 0 270179 0 0 0 9422 550 0 0 25 0 1 0 21785002 784355328 179894 4294967295 134512640 135987407 3221224560 3221158044 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8298/statm): 191493 179894 364 364 0 191129 0
[pid=8298] vsize: 765972
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 765972
One traced child (pid=8298) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.492
CPU time (s): 109.22
CPU user time (s): 103.282
CPU system time (s): 5.9381
CPU usage (%): 99.7518
Max. virtual memory (cumulated for all children) (Kb): 765972

Verifier Data

ERROR: no interpretation found !