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-israel.opb
MD5SUM7ba5c7ed3d893d37e85d9935730a0f21
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -86917125500
Optimality of the best value was proved NO
Number of terms in the objective function 2670
Biggest coefficient in the objective function 807185416192000
Number of bits for the biggest coefficient in the objective function 50
Sum of the numbers in the objective function 9901243932822396
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 807185416192000
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 9901243932822396
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark731.752
Number of variables4260
Total number of constraints174
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 constraints174
Minimum length of a constraint30
Maximum length of a constraint3540

Trace number 9889

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-23 16:07:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8643 boxname=wulflinc13 idbench=439 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7ba5c7ed3d893d37e85d9935730a0f21  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-israel.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-israel.opb
IDLAUNCH: 8643
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.180
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		: 451.180
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:        927080 kB
Buffers:         13876 kB
Cached:          75340 kB
SwapCached:          0 kB
Active:          45284 kB
Inactive:        46824 kB
HighTotal:      131008 kB
HighFree:        52052 kB
LowTotal:       903652 kB
LowFree:        875028 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9992 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:08:43 (client local time) WITH STATUS 0 IN 98.384 SECONDS
stats: 8643 7 98.384 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 21499983 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 373 2 364 364 0 9 0
[pid=7387] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-israel.opb

[startup+10.0016 s]
Raw data (loadavg): 0.93 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 30593 0 0 0 930 66 0 0 25 0 1 0 21499983 95944704 19452 4294967295 134512640 135987407 3221224560 3221201440 134878514 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 23424 19452 364 364 0 23060 0
[pid=7387] vsize: 93696
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 93696

[startup+20.0023 s]
Raw data (loadavg): 0.94 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 59558 0 0 0 1870 124 0 0 25 0 1 0 21499983 186097664 37205 4294967295 134512640 135987407 3221224560 3221199820 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 45434 37205 364 364 0 45070 0
[pid=7387] vsize: 181736
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 181736

[startup+30.0029 s]
Raw data (loadavg): 0.95 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 97953 0 0 0 2788 205 0 0 25 0 1 0 21499983 299864064 53392 4294967295 134512640 135987407 3221224560 3221199100 134636982 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 73209 53392 364 364 0 72845 0
[pid=7387] vsize: 292836
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 292836

[startup+40.0026 s]
Raw data (loadavg): 0.96 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 111566 0 0 0 3758 234 0 0 25 0 1 0 21499983 336932864 66768 4294967295 134512640 135987407 3221224560 3221208608 134637827 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 82259 66768 364 364 0 81895 0
[pid=7387] vsize: 329036
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 329036

[startup+50.0033 s]
Raw data (loadavg): 0.96 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 153391 0 0 0 4668 319 0 0 25 0 1 0 21499983 534597632 107383 4294967295 134512640 135987407 3221224560 3221207152 134861458 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 130517 107383 364 364 0 130153 0
[pid=7387] vsize: 522068
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 522068

[startup+60.0039 s]
Raw data (loadavg): 0.97 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 190063 0 0 0 5587 400 0 0 25 0 1 0 21499983 570732544 100849 4294967295 134512640 135987407 3221224560 3221193472 134537562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 139339 100849 364 364 0 138975 0
[pid=7387] vsize: 557356
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 557356

[startup+70.0046 s]
Raw data (loadavg): 0.97 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 203032 0 0 0 6559 427 0 0 25 0 1 0 21499983 611315712 113609 4294967295 134512640 135987407 3221224560 3221205568 134537357 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 149247 113609 364 364 0 148883 0
[pid=7387] vsize: 596988
Current children cumulated CPU time (s) 69.86
Current children cumulated vsize (Kb) 596988

[startup+80.0052 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 219071 0 0 0 7522 463 0 0 25 0 1 0 21499983 626593792 129419 4294967295 134512640 135987407 3221224560 3221194728 134533885 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 152977 129419 364 364 0 152613 0
[pid=7387] vsize: 611908
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 611908

[startup+90.0049 s]
Raw data (loadavg): 0.98 0.97 0.96 2/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) R 7386 7387 4060 0 -1 0 232847 0 0 0 8496 489 0 0 25 0 1 0 21499983 629297152 142951 4294967295 134512640 135987407 3221224560 3221208852 135478549 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 153637 142951 364 364 0 153273 0
[pid=7387] vsize: 614548
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 614548



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+98.2186 s]
Raw data (loadavg): 0.98 0.97 0.96 1/55 7387
Raw data (/proc/7387/stat): 7387 (pb2sat) T 7386 7387 4060 0 -1 0 241007 0 0 0 9297 509 0 0 25 0 1 0 21499983 966389760 150964 4294967295 134512640 135987407 3221224560 3221201904 135544035 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/7387/statm): 235935 150964 364 364 0 235571 0
[pid=7387] vsize: 943740
Current children cumulated CPU time (s) 98.06
Current children cumulated vsize (Kb) 943740

Sending SIGTERM to -7387
Sleeping 2 seconds

[startup+100.006 s]
Raw data (loadavg): 0.98 0.97 0.96 1/56 7388
Raw data (/proc/7387/stat): 7387 (pb2sat) S 7386 7387 4060 0 -1 0 241008 0 0 0 9297 509 0 0 25 0 1 0 21499983 966389760 150965 4294967295 134512640 135987407 3221224560 3221200408 135549753 0 16384 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7387/statm): 235935 150965 364 364 0 235571 0
[pid=7387] vsize: 943740
Current children cumulated CPU time (s) 98.06
Current children cumulated vsize (Kb) 943740
Sending SIGKILL to -7387
One traced child (pid=7387) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 100.535
CPU time (s): 98.384
CPU user time (s): 92.9769
CPU system time (s): 5.40718
CPU usage (%): 97.8606
Max. virtual memory (cumulated for all children) (Kb): 943740

Verifier Data

ERROR: no interpretation found !