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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-share1b.opb
MD5SUMdf77dd7325b8c4838e7ddb26764d610e
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 620
Biggest coefficient in the objective function 262144000000
Number of bits for the biggest coefficient in the objective function 38
Sum of the numbers in the objective function 2638204214250
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 6932293222400
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 56042652203303
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.359945
Number of variables4500
Total number of constraints117
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 constraints117
Minimum length of a constraint20
Maximum length of a constraint740

Trace number 10340

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 17:52:07 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9081 boxname=wulflinc10 idbench=877 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  df77dd7325b8c4838e7ddb26764d610e  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-share1b.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-share1b.opb
IDLAUNCH: 9081
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.193
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		: 451.193
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:        932728 kB
Buffers:         12204 kB
Cached:          72728 kB
SwapCached:          0 kB
Active:          45148 kB
Inactive:        42644 kB
HighTotal:      131008 kB
HighFree:        54404 kB
LowTotal:       903652 kB
LowFree:        878324 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8652 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:53:54 (client local time) WITH STATUS 1 IN 106.828 SECONDS
stats: 9081 7 106.828 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/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22133650 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 373 2 364 364 0 9 0
[pid=8980] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-share1b.opb

[startup+10.0023 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 29909 0 0 0 928 68 0 0 25 0 1 0 22133650 95674368 18761 4294967295 134512640 135987407 3221224560 3221208900 134637037 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 23358 18761 364 364 0 22994 0
[pid=8980] vsize: 93432
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 93432

[startup+20.0029 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 55117 0 0 0 1873 121 0 0 25 0 1 0 22133650 171184128 32751 4294967295 134512640 135987407 3221224560 3221150320 134856430 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 41793 32751 364 364 0 41429 0
[pid=8980] vsize: 167172
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 167172

[startup+30.0035 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 95094 0 0 0 2792 200 0 0 25 0 1 0 22133650 292458496 50531 4294967295 134512640 135987407 3221224560 3221154832 134637854 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 71401 50531 364 364 0 71037 0
[pid=8980] vsize: 285604
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 285604

[startup+40.003 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 113214 0 0 0 3752 237 0 0 25 0 1 0 22133650 350076928 68430 4294967295 134512640 135987407 3221224560 3221161408 134856476 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 85468 68430 364 364 0 85104 0
[pid=8980] vsize: 341872
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 341872

[startup+50.0046 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 147374 0 0 0 4679 307 0 0 25 0 1 0 22133650 544206848 101812 4294967295 134512640 135987407 3221224560 3221169436 135500012 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 132863 101812 364 364 0 132499 0
[pid=8980] vsize: 531452
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 531452

[startup+60.0051 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 198604 0 0 0 5567 416 0 0 25 0 1 0 22133650 614928384 109433 4294967295 134512640 135987407 3221224560 3221168120 135488133 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 150129 109433 364 364 0 149765 0
[pid=8980] vsize: 600516
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 600516

[startup+70.0057 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 215252 0 0 0 6531 450 0 0 25 0 1 0 22133650 670650368 125878 4294967295 134512640 135987407 3221224560 3221175852 135480425 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 163733 125878 364 364 0 163369 0
[pid=8980] vsize: 654932
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 654932

[startup+80.0063 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 234542 0 0 0 7489 490 0 0 25 0 1 0 22133650 695926784 144934 4294967295 134512640 135987407 3221224560 3221183920 134856594 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 169904 144934 364 364 0 169540 0
[pid=8980] vsize: 679616
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 679616

[startup+90.0058 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 253919 0 0 0 8445 532 0 0 25 0 1 0 22133650 721481728 164075 4294967295 134512640 135987407 3221224560 3221187216 134855001 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 176143 164075 364 364 0 175779 0
[pid=8980] vsize: 704572
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 704572

[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8980
Raw data (/proc/8980/stat): 8980 (pb2sat) R 8979 8980 4061 0 -1 0 269774 0 0 0 9412 563 0 0 25 0 1 0 22133650 794927104 179746 4294967295 134512640 135987407 3221224560 3221192300 134931008 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8980/statm): 194074 179746 364 364 0 193710 0
[pid=8980] vsize: 776296
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 776296
One traced child (pid=8980) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.087
CPU time (s): 106.828
CPU user time (s): 100.78
CPU system time (s): 6.04808
CPU usage (%): 99.7578
Max. virtual memory (cumulated for all children) (Kb): 776296

Verifier Data

ERROR: no interpretation found !