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-shell.opb
MD5SUM0f9e797b4b986a37159e9b1332a4b629
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 39844
Biggest coefficient in the objective function 2101312749568
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 249967315526150
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 2101312749568
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 249967315526150
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables45231
Total number of constraints653
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 constraints653
Minimum length of a constraint19
Maximum length of a constraint1560

Trace number 9923

Launcher Data

LAUNCH ON wulflinc3 THE 2005-09-23 16:11:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8675 boxname=wulflinc3 idbench=471 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0f9e797b4b986a37159e9b1332a4b629  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-shell.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-shell.opb
IDLAUNCH: 8675
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        933500 kB
Buffers:         12840 kB
Cached:          71004 kB
SwapCached:          0 kB
Active:          46648 kB
Inactive:        40072 kB
HighTotal:      131008 kB
HighFree:        55720 kB
LowTotal:       903652 kB
LowFree:        877780 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8832 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:13:38 (client local time) WITH STATUS 0 IN 120.809 SECONDS
stats: 8675 7 120.809 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/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21545006 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 373 2 364 364 0 9 0
[pid=8899] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-shell.opb

[startup+10.0021 s]
Raw data (loadavg): 0.91 0.93 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 2559 0 0 0 993 5 0 0 25 0 1 0 21545006 9506816 1872 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 2321 1872 364 364 0 1957 0
[pid=8899] vsize: 9284
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9284

[startup+20.003 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 3023 0 0 0 1991 7 0 0 25 0 1 0 21545006 10723328 2329 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 2618 2329 364 364 0 2254 0
[pid=8899] vsize: 10472
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 10472

[startup+30.0038 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 4406 0 0 0 2988 9 0 0 25 0 1 0 21545006 15769600 2967 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 3850 2967 364 364 0 3486 0
[pid=8899] vsize: 15400
Current children cumulated CPU time (s) 29.97
Current children cumulated vsize (Kb) 15400

[startup+40.0037 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 26273 0 0 0 3937 59 0 0 25 0 1 0 21545006 81412096 14932 4294967295 134512640 135987407 3221224560 3220964172 135487882 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 19876 14932 364 364 0 19512 0
[pid=8899] vsize: 79504
Current children cumulated CPU time (s) 39.96
Current children cumulated vsize (Kb) 79504

[startup+50.0045 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 54351 0 0 0 4871 124 0 0 25 0 1 0 21545006 170217472 31777 4294967295 134512640 135987407 3221224560 3220846668 135486712 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 41557 31777 364 364 0 41193 0
[pid=8899] vsize: 166228
Current children cumulated CPU time (s) 49.95
Current children cumulated vsize (Kb) 166228

[startup+60.0053 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 95077 0 0 0 5782 211 0 0 25 0 1 0 21545006 287494144 50280 4294967295 134512640 135987407 3221224560 3221052200 134865857 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 70189 50280 364 364 0 69825 0
[pid=8899] vsize: 280756
Current children cumulated CPU time (s) 59.93
Current children cumulated vsize (Kb) 280756

[startup+70.0062 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 110542 0 0 0 6741 252 0 0 25 0 1 0 21545006 324562944 65485 4294967295 134512640 135987407 3221224560 3221175852 135481319 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 79239 65485 364 364 0 78875 0
[pid=8899] vsize: 316956
Current children cumulated CPU time (s) 69.93
Current children cumulated vsize (Kb) 316956

[startup+80.007 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 153527 0 0 0 7639 349 0 0 25 0 1 0 21545006 453992448 88825 4294967295 134512640 135987407 3221224560 3221200164 134636948 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 110838 88825 364 364 0 110474 0
[pid=8899] vsize: 443352
Current children cumulated CPU time (s) 79.88
Current children cumulated vsize (Kb) 443352

[startup+90.0079 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 190449 0 0 0 8556 431 0 0 25 0 1 0 21545006 591589376 100964 4294967295 134512640 135987407 3221224560 3221124736 134556288 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 144431 100964 364 364 0 144067 0
[pid=8899] vsize: 577724
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 577724

[startup+100.009 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 207397 0 0 0 9511 475 0 0 25 0 1 0 21545006 596185088 117628 4294967295 134512640 135987407 3221224560 3221169436 134636950 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 145553 117628 364 364 0 145189 0
[pid=8899] vsize: 582212
Current children cumulated CPU time (s) 99.86
Current children cumulated vsize (Kb) 582212

[startup+110.01 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 224340 0 0 0 10467 519 0 0 25 0 1 0 21545006 601456640 134289 4294967295 134512640 135987407 3221224560 3220963696 134887896 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 146840 134289 364 364 0 146476 0
[pid=8899] vsize: 587360
Current children cumulated CPU time (s) 109.86
Current children cumulated vsize (Kb) 587360

[startup+120.01 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) R 8898 8899 4060 0 -1 0 237739 0 0 0 11433 553 0 0 25 0 1 0 21545006 657195008 147475 4294967295 134512640 135987407 3221224560 3221151628 135480487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8899/statm): 160448 147475 364 364 0 160084 0
[pid=8899] vsize: 641792
Current children cumulated CPU time (s) 119.86
Current children cumulated vsize (Kb) 641792



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+120.591 s]
Raw data (loadavg): 0.98 0.95 0.91 1/55 8899
Raw data (/proc/8899/stat): 8899 (pb2sat) T 8898 8899 4060 0 -1 0 239141 0 0 0 11486 557 0 0 25 0 1 0 21545006 943763456 148847 4294967295 134512640 135987407 3221224560 3221031100 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8899/statm): 230411 148847 364 364 0 230047 0
[pid=8899] vsize: 921644
Current children cumulated CPU time (s) 120.43
Current children cumulated vsize (Kb) 921644

Sending SIGTERM to -8899
Sleeping 2 seconds
Sending SIGKILL to -8899
One traced child (pid=8899) 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): 122.903
CPU time (s): 120.809
CPU user time (s): 114.929
CPU system time (s): 5.88011
CPU usage (%): 98.2962
Max. virtual memory (cumulated for all children) (Kb): 921644

Verifier Data

ERROR: no interpretation found !