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-cycle.opb
MD5SUMe48dda95f8e39d614f3e3f822031bbe2
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 9240
Biggest coefficient in the objective function 53687091200000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 1737924154969464
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 48888431614361600
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 779202693141814557
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1263.24
Number of variables84737
Total number of constraints1961
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 constraints1961
Minimum length of a constraint11
Maximum length of a constraint1470

Trace number 9868

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 16:02:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8622 boxname=wulflinc11 idbench=418 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e48dda95f8e39d614f3e3f822031bbe2  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-cycle.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-cycle.opb
IDLAUNCH: 8622
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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:        897148 kB
Buffers:          8676 kB
Cached:         103184 kB
SwapCached:          0 kB
Active:          71208 kB
Inactive:        50208 kB
HighTotal:      131008 kB
HighFree:        25536 kB
LowTotal:       903652 kB
LowFree:        871612 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10448 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:04:51 (client local time) WITH STATUS 1 IN 115.307 SECONDS
stats: 8622 7 115.307 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21476634 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8819/statm): 373 2 364 364 0 9 0
[pid=8819] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-cycle.opb

[startup+10.0026 s]
Raw data (loadavg): 0.90 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 27993 0 0 0 937 60 0 0 25 0 1 0 21476634 86908928 16843 4294967295 134512640 135987407 3221224560 3221134300 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 21218 16844 364 364 0 20854 0
[pid=8819] vsize: 84872
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 84872

[startup+20.0034 s]
Raw data (loadavg): 0.91 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 58077 0 0 0 1877 117 0 0 25 0 1 0 21476634 192024576 35719 4294967295 134512640 135987407 3221224560 3221133292 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 46881 35719 364 364 0 46517 0
[pid=8819] vsize: 187524
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 187524

[startup+30.0032 s]
Raw data (loadavg): 0.93 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 89178 0 0 0 2814 176 0 0 25 0 1 0 21476634 275488768 56880 4294967295 134512640 135987407 3221224560 3221134016 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 67258 56880 364 364 0 66894 0
[pid=8819] vsize: 269032
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 269032

[startup+40.004 s]
Raw data (loadavg): 0.94 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 117347 0 0 0 3760 229 0 0 25 0 1 0 21476634 382455808 72570 4294967295 134512640 135987407 3221224560 3221137500 135480496 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 93373 72570 364 364 0 93009 0
[pid=8819] vsize: 373492
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 373492

[startup+50.0037 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 135830 0 0 0 4721 265 0 0 25 0 1 0 21476634 408903680 90832 4294967295 134512640 135987407 3221224560 3221135948 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 99830 90832 364 364 0 99466 0
[pid=8819] vsize: 399320
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 399320

[startup+60.0045 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 178115 0 0 0 5635 348 0 0 25 0 1 0 21476634 546705408 113463 4294967295 134512640 135987407 3221224560 3221134492 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 133473 113465 364 364 0 133109 0
[pid=8819] vsize: 533892
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 533892

[startup+70.0053 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 217672 0 0 0 6553 428 0 0 25 0 1 0 21476634 667668480 128259 4294967295 134512640 135987407 3221224560 3221135984 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 163005 128259 364 364 0 162641 0
[pid=8819] vsize: 652020
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 652020

[startup+80.0051 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 233275 0 0 0 7522 458 0 0 25 0 1 0 21476634 724037632 143677 4294967295 134512640 135987407 3221224560 3221136368 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 176767 143677 364 364 0 176403 0
[pid=8819] vsize: 707068
Current children cumulated CPU time (s) 79.8
Current children cumulated vsize (Kb) 707068

[startup+90.0049 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 251193 0 0 0 8486 490 0 0 25 0 1 0 21476634 749182976 161379 4294967295 134512640 135987407 3221224560 3221138352 134636919 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 182906 161380 364 364 0 182542 0
[pid=8819] vsize: 731624
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 731624

[startup+100.005 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 268918 0 0 0 9453 522 0 0 25 0 1 0 21476634 773275648 178889 4294967295 134512640 135987407 3221224560 3221138636 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 188788 178890 364 364 0 188424 0
[pid=8819] vsize: 755152
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 755152

[startup+110.005 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 8819
Raw data (/proc/8819/stat): 8819 (pb2sat) R 8818 8819 4060 0 -1 0 279042 0 0 0 10433 541 0 0 25 0 1 0 21476634 838045696 188852 4294967295 134512640 135987407 3221224560 3221222980 134562648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8819/statm): 204601 188852 364 364 0 204237 0
[pid=8819] vsize: 818404
Current children cumulated CPU time (s) 109.74
Current children cumulated vsize (Kb) 818404
One traced child (pid=8819) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 115.567
CPU time (s): 115.307
CPU user time (s): 109.498
CPU system time (s): 5.80912
CPU usage (%): 99.7754
Max. virtual memory (cumulated for all children) (Kb): 818404

Verifier Data

ERROR: no interpretation found !