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-arki001.opb
MD5SUMd4d0a3fcbcc55e034e04fbd821250726
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 31
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 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 2386602666496000
Number of bits of the biggest number in a constraint 52
Biggest sum of numbers in a constraint 5223634990318712
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark81.5566
Number of variables8268
Total number of constraints2018
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)436
Number of constraints which are nor clauses,nor cardinality constraints1582
Minimum length of a constraint1
Maximum length of a constraint8249

Trace number 10060

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 16:45:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8820 boxname=wulflinc25 idbench=616 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d4d0a3fcbcc55e034e04fbd821250726  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-arki001.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-arki001.opb
IDLAUNCH: 8820
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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		: 451.002
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:        922864 kB
Buffers:         17352 kB
Cached:          74856 kB
SwapCached:          0 kB
Active:          47888 kB
Inactive:        47240 kB
HighTotal:      131008 kB
HighFree:        52220 kB
LowTotal:       903652 kB
LowFree:        870644 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            11128 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:47:01 (client local time) WITH STATUS 1 IN 105.895 SECONDS
stats: 8820 7 105.895 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/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21694602 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 373 2 364 364 0 9 0
[pid=8355] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-arki001.opb

[startup+10.0024 s]
Raw data (loadavg): 0.96 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 27902 0 0 0 931 66 0 0 25 0 1 0 21694602 82911232 16745 4294967295 134512640 135987407 3221224560 3221213852 134866211 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 20242 16745 364 364 0 19878 0
[pid=8355] vsize: 80968
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 80968

[startup+20.003 s]
Raw data (loadavg): 0.97 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 57954 0 0 0 1868 126 0 0 25 0 1 0 21694602 176234496 35569 4294967295 134512640 135987407 3221224560 3221128888 134930929 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 43026 35569 364 364 0 42662 0
[pid=8355] vsize: 172104
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 172104

[startup+30.0026 s]
Raw data (loadavg): 0.97 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 100254 0 0 0 2784 208 0 0 25 0 1 0 21694602 308854784 55668 4294967295 134512640 135987407 3221224560 3221126608 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 75404 55668 364 364 0 75040 0
[pid=8355] vsize: 301616
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 301616

[startup+40.0032 s]
Raw data (loadavg): 0.98 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 117477 0 0 0 3750 240 0 0 25 0 1 0 21694602 366964736 72670 4294967295 134512640 135987407 3221224560 3221130492 135481007 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 89591 72670 364 364 0 89227 0
[pid=8355] vsize: 358364
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 358364

[startup+50.0038 s]
Raw data (loadavg): 0.98 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 159471 0 0 0 4664 321 0 0 25 0 1 0 21694602 575365120 113553 4294967295 134512640 135987407 3221224560 3221126428 135500012 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 140470 113553 364 364 0 140106 0
[pid=8355] vsize: 561880
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 561880

[startup+60.0044 s]
Raw data (loadavg): 0.98 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 201224 0 0 0 5569 414 0 0 25 0 1 0 21694602 631070720 111783 4294967295 134512640 135987407 3221224560 3221130108 135500006 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 154070 111783 364 364 0 153706 0
[pid=8355] vsize: 616280
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 616280

[startup+70.005 s]
Raw data (loadavg): 0.98 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 216477 0 0 0 6536 446 0 0 25 0 1 0 21694602 685711360 126840 4294967295 134512640 135987407 3221224560 3221127872 134861870 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 167410 126840 364 364 0 167046 0
[pid=8355] vsize: 669640
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 669640

[startup+80.0046 s]
Raw data (loadavg): 0.99 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 234282 0 0 0 7497 482 0 0 25 0 1 0 21694602 710193152 144418 4294967295 134512640 135987407 3221224560 3221127120 134866122 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 173387 144418 364 364 0 173023 0
[pid=8355] vsize: 693548
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 693548

[startup+90.0052 s]
Raw data (loadavg): 0.99 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 252053 0 0 0 8463 515 0 0 25 0 1 0 21694602 735346688 161921 4294967295 134512640 135987407 3221224560 3221127520 134878078 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 179528 161921 364 364 0 179164 0
[pid=8355] vsize: 718112
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 718112

[startup+100.005 s]
Raw data (loadavg): 0.99 1.00 0.96 2/55 8355
Raw data (/proc/8355/stat): 8355 (pb2sat) R 8354 8355 4004 0 -1 0 268613 0 0 0 9428 548 0 0 25 0 1 0 21694602 761577472 177911 4294967295 134512640 135987407 3221224560 3221222960 134636917 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8355/statm): 185932 177911 364 364 0 185568 0
[pid=8355] vsize: 743728
Current children cumulated CPU time (s) 99.76
Current children cumulated vsize (Kb) 743728
One traced child (pid=8355) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 106.139
CPU time (s): 105.895
CPU user time (s): 100.045
CPU system time (s): 5.85011
CPU usage (%): 99.7697
Max. virtual memory (cumulated for all children) (Kb): 743728

Verifier Data

ERROR: no interpretation found !