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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-stocfor2.opb
MD5SUM8756a41134c52dcbfa591c90bdd1a8a3
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 31770
Biggest coefficient in the objective function 1855425871872000000
Number of bits for the biggest coefficient in the objective function 61
Sum of the numbers in the objective function 393343428838367821824
Number of bits of the sum of numbers in the objective function 69
Biggest number in a constraint 1855425871872000000
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 393343428838367821824
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 benchmark25.3481
Number of variables60930
Total number of constraints2157
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 constraints2157
Minimum length of a constraint30
Maximum length of a constraint450

Trace number 9953

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-23 16:15:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8699 boxname=wulflinc12 idbench=495 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8756a41134c52dcbfa591c90bdd1a8a3  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-stocfor2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-stocfor2.opb
IDLAUNCH: 8699
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        944220 kB
Buffers:          5724 kB
Cached:          64928 kB
SwapCached:          0 kB
Active:          24572 kB
Inactive:        48992 kB
HighTotal:      131008 kB
HighFree:        84000 kB
LowTotal:       903652 kB
LowFree:        860220 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11196 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:17:30 (client local time) WITH STATUS 1 IN 123.792 SECONDS
stats: 8699 7 123.792 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/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21551585 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 373 2 364 364 0 9 0
[pid=8696] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-20-10-stocfor2.opb

[startup+10.0022 s]
Raw data (loadavg): 0.87 0.94 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 2553 0 0 0 992 7 0 0 25 0 1 0 21551585 9506816 1866 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 2321 1866 364 364 0 1957 0
[pid=8696] vsize: 9284
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 9284

[startup+20.0031 s]
Raw data (loadavg): 0.89 0.94 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 5740 0 0 0 1982 16 0 0 25 0 1 0 21551585 19398656 4077 4294967295 134512640 135987407 3221224560 3221221476 134636948 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 4736 4077 364 364 0 4372 0
[pid=8696] vsize: 18944
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 18944

[startup+30.0029 s]
Raw data (loadavg): 0.90 0.94 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 34433 0 0 0 2915 80 0 0 25 0 1 0 21551585 137723904 23054 4294967295 134512640 135987407 3221224560 3221086448 134856374 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 33624 23054 364 364 0 33260 0
[pid=8696] vsize: 134496
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 134496

[startup+40.0038 s]
Raw data (loadavg): 0.92 0.94 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 64097 0 0 0 3853 139 0 0 25 0 1 0 21551585 196272128 41581 4294967295 134512640 135987407 3221224560 3221083872 134640450 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 47918 41581 364 364 0 47554 0
[pid=8696] vsize: 191672
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 191672

[startup+50.0046 s]
Raw data (loadavg): 0.93 0.94 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 107193 0 0 0 4764 225 0 0 25 0 1 0 21551585 328011776 62470 4294967295 134512640 135987407 3221224560 3221082860 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 80081 62470 364 364 0 79717 0
[pid=8696] vsize: 320324
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 320324

[startup+60.0064 s]
Raw data (loadavg): 0.94 0.95 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 125851 0 0 0 5725 261 0 0 25 0 1 0 21551585 386306048 80900 4294967295 134512640 135987407 3221224560 3221080112 134878716 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 94313 80900 364 364 0 93949 0
[pid=8696] vsize: 377252
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 377252

[startup+70.0073 s]
Raw data (loadavg): 0.95 0.95 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 170844 0 0 0 6638 344 0 0 25 0 1 0 21551585 529952768 106275 4294967295 134512640 135987407 3221224560 3221078832 134640553 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 129383 106275 364 364 0 129019 0
[pid=8696] vsize: 517532
Current children cumulated CPU time (s) 69.82
Current children cumulated vsize (Kb) 517532

[startup+80.0081 s]
Raw data (loadavg): 0.96 0.95 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 212073 0 0 0 7550 431 0 0 25 0 1 0 21551585 652513280 122723 4294967295 134512640 135987407 3221224560 3221076812 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 159305 122723 364 364 0 158941 0
[pid=8696] vsize: 637220
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 637220

[startup+90.0089 s]
Raw data (loadavg): 0.96 0.95 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 228647 0 0 0 8516 463 0 0 25 0 1 0 21551585 707964928 139094 4294967295 134512640 135987407 3221224560 3221074080 134861986 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 172843 139094 364 364 0 172479 0
[pid=8696] vsize: 691372
Current children cumulated CPU time (s) 89.79
Current children cumulated vsize (Kb) 691372

[startup+100.009 s]
Raw data (loadavg): 0.97 0.95 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 247960 0 0 0 9475 501 0 0 25 0 1 0 21551585 733376512 158172 4294967295 134512640 135987407 3221224560 3221079872 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 179047 158172 364 364 0 178683 0
[pid=8696] vsize: 716188
Current children cumulated CPU time (s) 99.76
Current children cumulated vsize (Kb) 716188

[startup+110.01 s]
Raw data (loadavg): 0.97 0.95 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 264834 0 0 0 10439 535 0 0 25 0 1 0 21551585 806010880 174840 4294967295 134512640 135987407 3221224560 3221071616 134877743 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 196780 174840 364 364 0 196416 0
[pid=8696] vsize: 787120
Current children cumulated CPU time (s) 109.74
Current children cumulated vsize (Kb) 787120

[startup+120.01 s]
Raw data (loadavg): 0.98 0.95 0.97 2/55 8696
Raw data (/proc/8696/stat): 8696 (pb2sat) R 8695 8696 4060 0 -1 0 277905 0 0 0 11395 577 0 0 25 0 1 0 21551585 466210816 113243 4294967295 134512640 135987407 3221224560 3221223224 135477274 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8696/statm): 113821 113243 364 364 0 113457 0
[pid=8696] vsize: 455284
Current children cumulated CPU time (s) 119.72
Current children cumulated vsize (Kb) 455284
One traced child (pid=8696) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 124.075
CPU time (s): 123.792
CPU user time (s): 117.779
CPU system time (s): 6.01308
CPU usage (%): 99.7719
Max. virtual memory (cumulated for all children) (Kb): 787120

Verifier Data

ERROR: no interpretation found !