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-pilot4.opb
MD5SUMc0a9c3c9174b2ed5ff67db55a0e1798a
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 80
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 4194300
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 14598268927344640
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 97087276122167100
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark8.5667
Number of variables18523
Total number of constraints657
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 constraints657
Minimum length of a constraint7
Maximum length of a constraint1071

Trace number 10288

Launcher Data

LAUNCH ON wulflinc12 THE 2005-09-23 17:46:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9035 boxname=wulflinc12 idbench=831 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c0a9c3c9174b2ed5ff67db55a0e1798a  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-pilot4.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-pilot4.opb
IDLAUNCH: 9035
/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:        940128 kB
Buffers:          6416 kB
Cached:          68520 kB
SwapCached:          0 kB
Active:          20548 kB
Inactive:        57304 kB
HighTotal:      131008 kB
HighFree:        80444 kB
LowTotal:       903652 kB
LowFree:        859684 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11156 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:48:31 (client local time) WITH STATUS 1 IN 98.1811 SECONDS
stats: 9035 7 98.1811 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/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22100393 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 373 2 364 364 0 9 0
[pid=10431] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-pilot4.opb

[startup+10.0029 s]
Raw data (loadavg): 0.92 0.93 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 31367 0 0 0 933 63 0 0 25 0 1 0 22100393 99598336 20202 4294967295 134512640 135987407 3221224560 3221104768 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 24316 20202 364 364 0 23952 0
[pid=10431] vsize: 97264
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 97264

[startup+20.0037 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 62523 0 0 0 1866 127 0 0 25 0 1 0 22100393 197349376 39988 4294967295 134512640 135987407 3221224560 3221105404 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 48181 39988 364 364 0 47817 0
[pid=10431] vsize: 192724
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192724

[startup+30.0035 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 106029 0 0 0 2778 211 0 0 25 0 1 0 22100393 331255808 60645 4294967295 134512640 135987407 3221224560 3221104572 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 80873 60645 364 364 0 80509 0
[pid=10431] vsize: 323492
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 323492

[startup+40.0044 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 124576 0 0 0 3739 248 0 0 25 0 1 0 22100393 391442432 78946 4294967295 134512640 135987407 3221224560 3221105776 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 95567 78946 364 364 0 95203 0
[pid=10431] vsize: 382268
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 382268

[startup+50.0052 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 169909 0 0 0 4651 331 0 0 25 0 1 0 22100393 533827584 102751 4294967295 134512640 135987407 3221224560 3221104288 134856587 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 130329 102751 364 364 0 129965 0
[pid=10431] vsize: 521316
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 521316

[startup+60.0061 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 211327 0 0 0 5561 419 0 0 25 0 1 0 22100393 658415616 119369 4294967295 134512640 135987407 3221224560 3221104672 134635423 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 160746 119369 364 364 0 160382 0
[pid=10431] vsize: 642984
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 642984

[startup+70.0069 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 229734 0 0 0 6524 454 0 0 25 0 1 0 22100393 718192640 137535 4294967295 134512640 135987407 3221224560 3221105920 134877642 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 175340 137535 364 364 0 174976 0
[pid=10431] vsize: 701360
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 701360

[startup+80.0077 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 247170 0 0 0 7494 483 0 0 25 0 1 0 22100393 743198720 154743 4294967295 134512640 135987407 3221224560 3221104144 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 181445 154743 364 364 0 181081 0
[pid=10431] vsize: 725780
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 725780

[startup+90.0086 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10431
Raw data (/proc/10431/stat): 10431 (pb2sat) R 10430 10431 4060 0 -1 0 267332 0 0 0 8452 522 0 0 25 0 1 0 22100393 774610944 174169 4294967295 134512640 135987407 3221224560 3221105404 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10431/statm): 189114 174169 364 364 0 188750 0
[pid=10431] vsize: 756456
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 756456
One traced child (pid=10431) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 98.457
CPU time (s): 98.1811
CPU user time (s): 92.5609
CPU system time (s): 5.62015
CPU usage (%): 99.7197
Max. virtual memory (cumulated for all children) (Kb): 756456

Verifier Data

ERROR: no interpretation found !