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-sierra.opb
MD5SUM0c242afd458949841d3ea7014466f311
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 31139
Biggest coefficient in the objective function 5007894118400
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 89107300928876
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 5007894118400
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 89107300928876
Number of bits of the biggest sum of numbers47
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables32607
Total number of constraints3263
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 constraints3263
Minimum length of a constraint7
Maximum length of a constraint426

Trace number 10315

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-23 17:50:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9066 boxname=wulflinc9 idbench=862 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0c242afd458949841d3ea7014466f311  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-sierra.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-sierra.opb
IDLAUNCH: 9066
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        902916 kB
Buffers:         13204 kB
Cached:         100900 kB
SwapCached:          0 kB
Active:          55212 kB
Inactive:        61776 kB
HighTotal:      131008 kB
HighFree:        26992 kB
LowTotal:       903652 kB
LowFree:        875924 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9160 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:51:57 (client local time) WITH STATUS 0 IN 102.119 SECONDS
stats: 9066 7 102.119 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/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22122887 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 373 2 364 364 0 9 0
[pid=11147] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-sierra.opb

[startup+10.0012 s]
Raw data (loadavg): 0.91 0.93 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 2601 0 0 0 992 6 0 0 25 0 1 0 22122887 9637888 1913 4294967295 134512640 135987407 3221224560 3221221816 134514943 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 2353 1913 364 364 0 1989 0
[pid=11147] vsize: 9412
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9412

[startup+20.002 s]
Raw data (loadavg): 0.92 0.93 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 8897 0 0 0 1975 23 0 0 25 0 1 0 22122887 28606464 5609 4294967295 134512640 135987407 3221224560 3221217184 134856412 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 6984 5609 364 364 0 6620 0
[pid=11147] vsize: 27936
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 27936

[startup+30.0028 s]
Raw data (loadavg): 0.94 0.93 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 39444 0 0 0 2904 91 0 0 25 0 1 0 22122887 116686848 23254 4294967295 134512640 135987407 3221224560 3221221856 134555752 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 28488 23254 364 364 0 28124 0
[pid=11147] vsize: 113952
Current children cumulated CPU time (s) 29.95
Current children cumulated vsize (Kb) 113952

[startup+40.0025 s]
Raw data (loadavg): 0.95 0.93 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 75037 0 0 0 3821 173 0 0 25 0 1 0 22122887 225845248 42748 4294967295 134512640 135987407 3221224560 3221204160 134640484 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 55138 42748 364 364 0 54774 0
[pid=11147] vsize: 220552
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 220552

[startup+50.0033 s]
Raw data (loadavg): 0.95 0.93 0.92 3/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 102751 0 0 0 4755 238 0 0 25 0 1 0 22122887 314220544 57917 4294967295 134512640 135987407 3221224560 3221107200 134893003 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 76714 57917 364 364 0 76350 0
[pid=11147] vsize: 306856
Current children cumulated CPU time (s) 49.93
Current children cumulated vsize (Kb) 306856

[startup+60.0031 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 135235 0 0 0 5679 311 0 0 25 0 1 0 22122887 490487808 89573 4294967295 134512640 135987407 3221224560 3221167456 134856389 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 119748 89573 364 364 0 119384 0
[pid=11147] vsize: 478992
Current children cumulated CPU time (s) 59.9
Current children cumulated vsize (Kb) 478992

[startup+70.0039 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 185837 0 0 0 6566 422 0 0 25 0 1 0 22122887 549056512 96526 4294967295 134512640 135987407 3221224560 3221119424 134878168 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 134047 96526 364 364 0 133683 0
[pid=11147] vsize: 536188
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 536188

[startup+80.0047 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 201140 0 0 0 7529 458 0 0 25 0 1 0 22122887 586665984 111574 4294967295 134512640 135987407 3221224560 3221169404 135484820 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 143229 111574 364 364 0 142865 0
[pid=11147] vsize: 572916
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 572916

[startup+90.0045 s]
Raw data (loadavg): 0.97 0.94 0.92 2/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) R 11146 11147 4060 0 -1 0 218801 0 0 0 8484 502 0 0 25 0 1 0 22122887 591667200 128938 4294967295 134512640 135987407 3221224560 3221218880 134878092 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11147/statm): 144450 128938 364 364 0 144086 0
[pid=11147] vsize: 577800
Current children cumulated CPU time (s) 89.86
Current children cumulated vsize (Kb) 577800

[startup+100.005 s]
Raw data (loadavg): 0.98 0.94 0.92 1/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) T 11146 11147 4060 0 -1 0 232968 0 0 0 9445 541 0 0 25 0 1 0 22122887 646594560 142871 4294967295 134512640 135987407 3221224560 3221136812 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/11147/statm): 157860 142871 364 364 0 157496 0
[pid=11147] vsize: 631440
Current children cumulated CPU time (s) 99.86
Current children cumulated vsize (Kb) 631440



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+101.915 s]
Raw data (loadavg): 0.98 0.94 0.92 1/55 11147
Raw data (/proc/11147/stat): 11147 (pb2sat) T 11146 11147 4060 0 -1 0 240689 0 0 0 9620 556 0 0 25 0 1 0 22122887 943841280 150419 4294967295 134512640 135987407 3221224560 3221194732 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/11147/statm): 230430 150419 364 364 0 230066 0
[pid=11147] vsize: 921720
Current children cumulated CPU time (s) 101.76
Current children cumulated vsize (Kb) 921720

Sending SIGTERM to -11147
Sleeping 2 seconds
Sending SIGKILL to -11147
One traced child (pid=11147) 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): 104.226
CPU time (s): 102.119
CPU user time (s): 96.2444
CPU system time (s): 5.87511
CPU usage (%): 97.9785
Max. virtual memory (cumulated for all children) (Kb): 921720

Verifier Data

ERROR: no interpretation found !