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-nesm.opb
MD5SUM9ca217d68e197c62a424642cb15d4c0d
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 6687
Biggest coefficient in the objective function 13107200000000000
Number of bits for the biggest coefficient in the objective function 54
Sum of the numbers in the objective function 655896268577248767
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 13107200000000000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 655896268577248767
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark20.9848
Number of variables43191
Total number of constraints2258
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 constraints2258
Minimum length of a constraint7
Maximum length of a constraint648

Trace number 10285

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-23 17:46:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9033 boxname=wulflinc9 idbench=829 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9ca217d68e197c62a424642cb15d4c0d  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-nesm.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-nesm.opb
IDLAUNCH: 9033
/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:        902332 kB
Buffers:         13140 kB
Cached:         101508 kB
SwapCached:          0 kB
Active:          56600 kB
Inactive:        61004 kB
HighTotal:      131008 kB
HighFree:        26264 kB
LowTotal:       903652 kB
LowFree:        876068 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9080 kB
Committed_AS:    63644 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:48:18 (client local time) WITH STATUS 0 IN 92.5389 SECONDS
stats: 9033 7 92.5389 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/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 18 0 0 0 0 0 0 0 21 0 1 0 22101876 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 373 2 364 364 0 9 0
[pid=10923] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-nesm.opb

[startup+10.0024 s]
Raw data (loadavg): 0.93 0.94 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 27755 0 0 0 935 60 0 0 25 0 1 0 22101876 83415040 16618 4294967295 134512640 135987407 3221224560 3221209948 135480932 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 20365 16618 364 364 0 20001 0
[pid=10923] vsize: 81460
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 81460

[startup+20.0031 s]
Raw data (loadavg): 0.94 0.94 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 58926 0 0 0 1873 119 0 0 25 0 1 0 22101876 190488576 36460 4294967295 134512640 135987407 3221224560 3221211456 134637856 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 46506 36460 364 364 0 46142 0
[pid=10923] vsize: 186024
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 186024

[startup+30.0039 s]
Raw data (loadavg): 0.95 0.94 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 87458 0 0 0 2819 171 0 0 25 0 1 0 22101876 259960832 54562 4294967295 134512640 135987407 3221224560 3221211232 134558355 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 63467 54562 364 364 0 63103 0
[pid=10923] vsize: 253868
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 253868

[startup+40.0047 s]
Raw data (loadavg): 0.95 0.95 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 111771 0 0 0 3769 221 0 0 25 0 1 0 22101876 348307456 66356 4294967295 134512640 135987407 3221224560 3221210448 134931273 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 85036 66356 364 364 0 84672 0
[pid=10923] vsize: 340144
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 340144

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.95 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 151733 0 0 0 4685 301 0 0 25 0 1 0 22101876 471756800 85426 4294967295 134512640 135987407 3221224560 3221213296 134537400 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 115175 85426 364 364 0 114811 0
[pid=10923] vsize: 460700
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 460700

[startup+60.0053 s]
Raw data (loadavg): 0.97 0.95 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 165495 0 0 0 5658 327 0 0 25 0 1 0 22101876 475598848 98914 4294967295 134512640 135987407 3221224560 3221210208 135293373 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 116113 98914 364 364 0 115749 0
[pid=10923] vsize: 464452
Current children cumulated CPU time (s) 59.85
Current children cumulated vsize (Kb) 464452

[startup+70.0051 s]
Raw data (loadavg): 0.97 0.95 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 201627 0 0 0 6582 403 0 0 25 0 1 0 22101876 582266880 110009 4294967295 134512640 135987407 3221224560 3221209900 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 142155 110009 364 364 0 141791 0
[pid=10923] vsize: 568620
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 568620

[startup+80.0068 s]
Raw data (loadavg): 0.98 0.95 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 213394 0 0 0 7558 427 0 0 25 0 1 0 22101876 618930176 121547 4294967295 134512640 135987407 3221224560 3221210128 134856587 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 151106 121547 364 364 0 150742 0
[pid=10923] vsize: 604424
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 604424

[startup+90.0066 s]
Raw data (loadavg): 0.98 0.95 0.93 2/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) R 10922 10923 4060 0 -1 0 226676 0 0 0 8532 452 0 0 25 0 1 0 22101876 624082944 134574 4294967295 134512640 135987407 3221224560 3221212000 134558660 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10923/statm): 152364 134574 364 364 0 152000 0
[pid=10923] vsize: 609456
Current children cumulated CPU time (s) 89.84
Current children cumulated vsize (Kb) 609456



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+92.3857 s]
Raw data (loadavg): 0.98 0.95 0.93 1/55 10923
Raw data (/proc/10923/stat): 10923 (pb2sat) T 10922 10923 4060 0 -1 0 247332 0 0 0 8728 491 0 0 25 0 1 0 22101876 943742976 154579 4294967295 134512640 135987407 3221224560 3221210188 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10923/statm): 230406 154579 364 364 0 230042 0
[pid=10923] vsize: 921624
Current children cumulated CPU time (s) 92.19
Current children cumulated vsize (Kb) 921624

Sending SIGTERM to -10923
Sleeping 2 seconds
Sending SIGKILL to -10923
One traced child (pid=10923) 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): 94.7046
CPU time (s): 92.5389
CPU user time (s): 87.3127
CPU system time (s): 5.22621
CPU usage (%): 97.7132
Max. virtual memory (cumulated for all children) (Kb): 921624

Verifier Data

ERROR: no interpretation found !