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-vtp.base.opb
MD5SUM11ee9c7ad363b7002a0bcb50ec24f222
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 121
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 7340026
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 241446566912
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 12785129634632
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.102983
Number of variables3129
Total number of constraints262
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 constraints262
Minimum length of a constraint8
Maximum length of a constraint720

Trace number 10321

Launcher Data

LAUNCH ON wulflinc28 THE 2005-09-23 17:50:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9071 boxname=wulflinc28 idbench=867 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  11ee9c7ad363b7002a0bcb50ec24f222  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-vtp.base.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-vtp.base.opb
IDLAUNCH: 9071
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.188
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		: 451.188
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:        934300 kB
Buffers:         12176 kB
Cached:          71124 kB
SwapCached:          0 kB
Active:          44196 kB
Inactive:        41996 kB
HighTotal:      131008 kB
HighFree:        55664 kB
LowTotal:       903652 kB
LowFree:        878636 kB
SwapTotal:     2097640 kB
SwapFree:      2097640 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8536 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:52:17 (client local time) WITH STATUS 0 IN 90.5812 SECONDS
stats: 9071 7 90.5812 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/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22086074 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 373 2 364 364 0 9 0
[pid=9598] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-vtp.base.opb

[startup+10.0016 s]
Raw data (loadavg): 0.91 0.95 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 28984 0 0 0 931 66 0 0 25 0 1 0 22086074 82231296 17815 4294967295 134512640 135987407 3221224560 3221205536 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 20076 17815 364 364 0 19712 0
[pid=9598] vsize: 80304
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 80304

[startup+20.0023 s]
Raw data (loadavg): 0.93 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 57074 0 0 0 1870 125 0 0 25 0 1 0 22086074 161972224 34667 4294967295 134512640 135987407 3221224560 3221205512 134637038 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 39544 34667 364 364 0 39180 0
[pid=9598] vsize: 158176
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 158176

[startup+30.003 s]
Raw data (loadavg): 0.94 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 96163 0 0 0 2786 207 0 0 25 0 1 0 22086074 312127488 51554 4294967295 134512640 135987407 3221224560 3221212312 134636909 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 76203 51554 364 364 0 75839 0
[pid=9598] vsize: 304812
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 304812

[startup+40.0027 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 111819 0 0 0 3748 244 0 0 25 0 1 0 22086074 316317696 66943 4294967295 134512640 135987407 3221224560 3221198872 134802665 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 77226 66943 364 364 0 76862 0
[pid=9598] vsize: 308904
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 308904

[startup+50.0043 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 159828 0 0 0 4649 340 0 0 25 0 1 0 22086074 646672384 95329 4294967295 134512640 135987407 3221224560 3221193488 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 157879 95329 364 364 0 157515 0
[pid=9598] vsize: 631516
Current children cumulated CPU time (s) 49.89
Current children cumulated vsize (Kb) 631516

[startup+60.005 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 189945 0 0 0 5579 410 0 0 25 0 1 0 22086074 583208960 100668 4294967295 134512640 135987407 3221224560 3221196452 134638988 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 142385 100668 364 364 0 142021 0
[pid=9598] vsize: 569540
Current children cumulated CPU time (s) 59.89
Current children cumulated vsize (Kb) 569540

[startup+70.0057 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 205797 0 0 0 6541 448 0 0 25 0 1 0 22086074 588075008 116253 4294967295 134512640 135987407 3221224560 3221212192 134639041 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 143573 116253 364 364 0 143209 0
[pid=9598] vsize: 574292
Current children cumulated CPU time (s) 69.89
Current children cumulated vsize (Kb) 574292

[startup+80.0064 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 221959 0 0 0 7505 483 0 0 25 0 1 0 22086074 592400384 132140 4294967295 134512640 135987407 3221224560 3221194076 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 144629 132140 364 364 0 144265 0
[pid=9598] vsize: 578516
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 578516

[startup+90.0061 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) R 9597 9598 4005 0 -1 0 235763 0 0 0 8472 516 0 0 25 0 1 0 22086074 652496896 145721 4294967295 134512640 135987407 3221224560 3221202880 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9598/statm): 159301 145721 364 364 0 158937 0
[pid=9598] vsize: 637204
Current children cumulated CPU time (s) 89.88
Current children cumulated vsize (Kb) 637204



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+90.4104 s]
Raw data (loadavg): 0.98 0.96 0.96 1/55 9598
Raw data (/proc/9598/stat): 9598 (pb2sat) T 9597 9598 4005 0 -1 0 239811 0 0 0 8503 524 0 0 25 0 1 0 22086074 943796224 149626 4294967295 134512640 135987407 3221224560 3221204476 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9598/statm): 230419 149626 364 364 0 230055 0
[pid=9598] vsize: 921676
Current children cumulated CPU time (s) 90.27
Current children cumulated vsize (Kb) 921676

Sending SIGTERM to -9598
Sleeping 2 seconds
Sending SIGKILL to -9598
One traced child (pid=9598) 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): 92.7213
CPU time (s): 90.5812
CPU user time (s): 85.0351
CPU system time (s): 5.54616
CPU usage (%): 97.6919
Max. virtual memory (cumulated for all children) (Kb): 921676

Verifier Data

ERROR: no interpretation found !