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/MIPLIB/miplib3/normalized-mps-v2-20-10-egout.opb
MD5SUM99bcb41cf234e24f89287b787fc4273a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 471047168
Optimality of the best value was proved YES
Number of terms in the objective function 1615
Biggest coefficient in the objective function 545997717504
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 15186728411329
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 545997717504
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 15186728411329
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark1108.66
Number of variables1705
Total number of constraints153
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)55
Number of constraints which are nor clauses,nor cardinality constraints98
Minimum length of a constraint1
Maximum length of a constraint420

Trace number 10069

Launcher Data

LAUNCH ON wulflinc6 THE 2005-09-23 16:47:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8828 boxname=wulflinc6 idbench=624 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  99bcb41cf234e24f89287b787fc4273a  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-egout.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-egout.opb
IDLAUNCH: 8828
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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		: 451.158
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:        923560 kB
Buffers:         12996 kB
Cached:          81048 kB
SwapCached:          0 kB
Active:          41684 kB
Inactive:        55268 kB
HighTotal:      131008 kB
HighFree:        46452 kB
LowTotal:       903652 kB
LowFree:        877108 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8612 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:49:41 (client local time) WITH STATUS 1 IN 114.115 SECONDS
stats: 8828 7 114.115 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 870235864
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21760867 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 373 2 364 364 0 9 0
[pid=8703] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-egout.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.95 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 29744 0 0 0 926 69 0 0 25 0 1 0 21760867 96489472 18545 4294967295 134512640 135987407 3221224560 3221061808 134931273 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 23557 18545 364 364 0 23193 0
[pid=8703] vsize: 94228
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 94228

[startup+20.0037 s]
Raw data (loadavg): 0.94 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 59432 0 0 0 1865 128 0 0 25 0 1 0 21760867 192180224 37010 4294967295 134512640 135987407 3221224560 3220788592 134854972 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 46919 37010 364 364 0 46555 0
[pid=8703] vsize: 187676
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 187676

[startup+30.0045 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 90051 0 0 0 2801 188 0 0 25 0 1 0 21760867 275210240 57695 4294967295 134512640 135987407 3221224560 3220895840 134856594 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 67190 57695 364 364 0 66826 0
[pid=8703] vsize: 268760
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 268760

[startup+40.0042 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 116283 0 0 0 3745 242 0 0 25 0 1 0 21760867 379641856 71452 4294967295 134512640 135987407 3221224560 3221223328 134800220 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 92686 71452 364 364 0 92322 0
[pid=8703] vsize: 370744
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 370744

[startup+50.005 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 145770 0 0 0 4668 313 0 0 25 0 1 0 21760867 490811392 98761 4294967295 134512640 135987407 3221224560 3220735884 135499868 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 119827 98761 364 364 0 119463 0
[pid=8703] vsize: 479308
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 479308

[startup+60.0047 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 182758 0 0 0 5590 389 0 0 25 0 1 0 21760867 669917184 134523 4294967295 134512640 135987407 3221224560 3221007120 134861519 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 163554 134523 364 364 0 163190 0
[pid=8703] vsize: 654216
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 654216

[startup+70.0055 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 195204 0 0 0 6562 416 0 0 25 0 1 0 21760867 602804224 128297 4294967295 134512640 135987407 3221224560 3220893932 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 147169 128297 364 364 0 146805 0
[pid=8703] vsize: 588676
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 588676

[startup+80.0062 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 231393 0 0 0 7480 498 0 0 25 0 1 0 21760867 709414912 139698 4294967295 134512640 135987407 3221224560 3221201240 134866789 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 173197 139698 364 364 0 172833 0
[pid=8703] vsize: 692788
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 692788

[startup+90.006 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 240642 0 0 0 8459 518 0 0 25 0 1 0 21760867 717254656 148781 4294967295 134512640 135987407 3221224560 3220826336 134878728 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 175111 148781 364 364 0 174747 0
[pid=8703] vsize: 700444
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 700444

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 256476 0 0 0 9427 548 0 0 25 0 1 0 21760867 745648128 164379 4294967295 134512640 135987407 3221224560 3220859984 135486786 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 182043 164379 364 364 0 181679 0
[pid=8703] vsize: 728172
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 728172

[startup+110.007 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8703
Raw data (/proc/8703/stat): 8703 (pb2sat) R 8702 8703 4060 0 -1 0 267762 0 0 0 10396 577 0 0 25 0 1 0 21760867 681721856 154932 4294967295 134512640 135987407 3221224560 3221222792 134882849 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8703/statm): 166436 154932 364 364 0 166072 0
[pid=8703] vsize: 665744
Current children cumulated CPU time (s) 109.73
Current children cumulated vsize (Kb) 665744
One traced child (pid=8703) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 114.392
CPU time (s): 114.115
CPU user time (s): 108.038
CPU system time (s): 6.07708
CPU usage (%): 99.7572
Max. virtual memory (cumulated for all children) (Kb): 728172

Verifier Data

ERROR: no interpretation found !