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

Nameweb/www.ps.uni-sb.de/~walser/benchmarks/course-ass/normalized-ws97-3.opb
MD5SUM77c89bda49ebcdc0428e1292512864a9
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3080
Optimality of the best value was proved NO
Number of terms in the objective function 2792
Biggest coefficient in the objective function 1000
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 1385986
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1000
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1385986
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.12383
Number of variables3300
Total number of constraints5284
Number of constraints which are clauses1364
Number of constraints which are cardinality constraints (but not clauses)3920
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint220

Trace number 9827

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 15:48:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8587 boxname=wulflinc25 idbench=383 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  77c89bda49ebcdc0428e1292512864a9  /oldhome/oroussel/tmp/wulflinc25/normalized-ws97-3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-ws97-3.opb
IDLAUNCH: 8587
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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	: 3
cpu MHz		: 451.002
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:        928236 kB
Buffers:         16972 kB
Cached:          70204 kB
SwapCached:          0 kB
Active:          44712 kB
Inactive:        45364 kB
HighTotal:      131008 kB
HighFree:        56896 kB
LowTotal:       903652 kB
LowFree:        871340 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10796 kB
Committed_AS:    63656 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 15:50:32 (client local time) WITH STATUS 1 IN 134.131 SECONDS
stats: 8587 7 134.131 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 242716
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/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21352790 1527808 2 4294967295 134512640 135987407 3221224576 3221224576 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 373 2 364 364 0 9 0
[pid=7512] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-ws97-3.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 26912 0 0 0 923 69 0 0 25 0 1 0 21352790 83984384 15433 4294967295 134512640 135987407 3221224576 3221223264 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 20504 15433 364 364 0 20140 0
[pid=7512] vsize: 82016
Current children cumulated CPU time (s) 9.92
Current children cumulated vsize (Kb) 82016

[startup+20.0026 s]
Raw data (loadavg): 0.94 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 33207 0 0 0 1848 103 0 0 25 0 1 0 21352790 95637504 21660 4294967295 134512640 135987407 3221224576 3220999452 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 23349 21660 364 364 0 22985 0
[pid=7512] vsize: 93396
Current children cumulated CPU time (s) 19.51
Current children cumulated vsize (Kb) 93396

[startup+30.0032 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 63812 0 0 0 2782 168 0 0 25 0 1 0 21352790 191733760 41041 4294967295 134512640 135987407 3221224576 3220454208 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 46810 41041 364 364 0 46446 0
[pid=7512] vsize: 187240
Current children cumulated CPU time (s) 29.5
Current children cumulated vsize (Kb) 187240

[startup+40.0029 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 105441 0 0 0 3689 257 0 0 25 0 1 0 21352790 321310720 60469 4294967295 134512640 135987407 3221224576 3220712816 135477380 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 78445 60469 364 364 0 78081 0
[pid=7512] vsize: 313780
Current children cumulated CPU time (s) 39.46
Current children cumulated vsize (Kb) 313780

[startup+50.0035 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 122787 0 0 0 4652 292 0 0 25 0 1 0 21352790 378925056 77592 4294967295 134512640 135987407 3221224576 3220401424 134640046 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 92511 77592 364 364 0 92147 0
[pid=7512] vsize: 370044
Current children cumulated CPU time (s) 49.44
Current children cumulated vsize (Kb) 370044

[startup+60.0031 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 165573 0 0 0 5564 374 0 0 25 0 1 0 21352790 588578816 119199 4294967295 134512640 135987407 3221224576 3220686240 134862332 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 143696 119199 364 364 0 143332 0
[pid=7512] vsize: 574784
Current children cumulated CPU time (s) 59.38
Current children cumulated vsize (Kb) 574784

[startup+70.0037 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 206009 0 0 0 6476 460 0 0 25 0 1 0 21352790 641323008 116427 4294967295 134512640 135987407 3221224576 3221182992 134887815 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 156573 116427 364 364 0 156209 0
[pid=7512] vsize: 626292
Current children cumulated CPU time (s) 69.36
Current children cumulated vsize (Kb) 626292

[startup+80.0043 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 221299 0 0 0 7442 493 0 0 25 0 1 0 21352790 696098816 131518 4294967295 134512640 135987407 3221224576 3220627536 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 169946 131518 364 364 0 169582 0
[pid=7512] vsize: 679784
Current children cumulated CPU time (s) 79.35
Current children cumulated vsize (Kb) 679784

[startup+90.0039 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 234817 0 0 0 8406 526 0 0 25 0 1 0 21352790 730222592 141252 4294967295 134512640 135987407 3221224576 3221223392 134802371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 178277 141252 364 364 0 177913 0
[pid=7512] vsize: 713108
Current children cumulated CPU time (s) 89.32
Current children cumulated vsize (Kb) 713108

[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 275441 0 0 0 9293 629 0 0 25 0 1 0 21352790 895803392 181871 4294967295 134512640 135987407 3221224576 3220494604 135484970 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 218702 181871 364 364 0 218338 0
[pid=7512] vsize: 874808
Current children cumulated CPU time (s) 99.22
Current children cumulated vsize (Kb) 874808

[startup+110.005 s]
Raw data (loadavg): 0.98 0.97 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 288812 0 0 0 10266 655 0 0 25 0 1 0 21352790 895803392 194984 4294967295 134512640 135987407 3221224576 3220453048 135487877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 218702 194984 364 364 0 218338 0
[pid=7512] vsize: 874808
Current children cumulated CPU time (s) 109.21
Current children cumulated vsize (Kb) 874808

[startup+120.006 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 301205 0 0 0 11238 683 0 0 25 0 1 0 21352790 895803392 207139 4294967295 134512640 135987407 3221224576 3221149200 134856545 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 218702 207139 364 364 0 218338 0
[pid=7512] vsize: 874808
Current children cumulated CPU time (s) 119.21
Current children cumulated vsize (Kb) 874808

[startup+130.006 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 7512
Raw data (/proc/7512/stat): 7512 (pb2sat) R 7511 7512 4004 0 -1 0 306290 0 0 0 12227 694 0 0 25 0 1 0 21352790 897257472 212128 4294967295 134512640 135987407 3221224576 3221223256 135477380 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7512/statm): 219057 212128 364 364 0 218693 0
[pid=7512] vsize: 876228
Current children cumulated CPU time (s) 129.21
Current children cumulated vsize (Kb) 876228
One traced child (pid=7512) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 134.917
CPU time (s): 134.131
CPU user time (s): 126.773
CPU system time (s): 7.35788
CPU usage (%): 99.4168
Max. virtual memory (cumulated for all children) (Kb): 876228

Verifier Data

ERROR: no interpretation found !