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-scagr25.opb
MD5SUM8212b7d88cb773988540e2678fb656aa
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 9500
Biggest coefficient in the objective function 34707865600
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 4559151671250
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 34707865600
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 4559151671250
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.445932
Number of variables10000
Total number of constraints471
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 constraints471
Minimum length of a constraint20
Maximum length of a constraint200

Trace number 10295

Launcher Data

LAUNCH ON wulflinc27 THE 2005-09-23 17:47:41 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9045 boxname=wulflinc27 idbench=841 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8212b7d88cb773988540e2678fb656aa  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-scagr25.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-scagr25.opb
IDLAUNCH: 9045
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.039
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		: 451.039
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:        934492 kB
Buffers:         12076 kB
Cached:          70816 kB
SwapCached:          0 kB
Active:          45928 kB
Inactive:        39860 kB
HighTotal:      131008 kB
HighFree:        55776 kB
LowTotal:       903652 kB
LowFree:        878716 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8736 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:49:22 (client local time) WITH STATUS 0 IN 98.585 SECONDS
stats: 9045 7 98.585 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/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22067497 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 373 2 364 364 0 9 0
[pid=10289] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-scagr25.opb

[startup+10.0025 s]
Raw data (loadavg): 0.93 0.95 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 28370 0 0 0 932 64 0 0 25 0 1 0 22067497 91238400 17214 4294967295 134512640 135987407 3221224560 3221179328 134537400 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 22275 17214 364 364 0 21911 0
[pid=10289] vsize: 89100
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 89100

[startup+20.0033 s]
Raw data (loadavg): 0.94 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 60197 0 0 0 1864 129 0 0 25 0 1 0 22067497 187875328 37814 4294967295 134512640 135987407 3221224560 3221205884 134635332 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 45868 37814 364 364 0 45504 0
[pid=10289] vsize: 183472
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 183472

[startup+30.0041 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 99638 0 0 0 2781 208 0 0 25 0 1 0 22067497 307314688 55060 4294967295 134512640 135987407 3221224560 3221182240 134856407 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10289/statm): 75028 55061 364 364 0 74664 0
[pid=10289] vsize: 300112
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 300112

[startup+40.005 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 113758 0 0 0 3753 236 0 0 25 0 1 0 22067497 346005504 68948 4294967295 134512640 135987407 3221224560 3221207296 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10289/statm): 84474 68948 364 364 0 84110 0
[pid=10289] vsize: 337896
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 337896

[startup+50.0058 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 141910 0 0 0 4698 289 0 0 25 0 1 0 22067497 517271552 96355 4294967295 134512640 135987407 3221224560 3221157680 134856568 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 126287 96355 364 364 0 125923 0
[pid=10289] vsize: 505148
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 505148

[startup+60.0067 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 191566 0 0 0 5595 391 0 0 25 0 1 0 22067497 575963136 102349 4294967295 134512640 135987407 3221224560 3221185712 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 140616 102349 364 364 0 140252 0
[pid=10289] vsize: 562464
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 562464

[startup+70.0075 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 205560 0 0 0 6565 420 0 0 25 0 1 0 22067497 616951808 116124 4294967295 134512640 135987407 3221224560 3221214904 135293361 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 150623 116124 364 364 0 150259 0
[pid=10289] vsize: 602492
Current children cumulated CPU time (s) 69.85
Current children cumulated vsize (Kb) 602492

[startup+80.0083 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 219013 0 0 0 7536 449 0 0 25 0 1 0 22067497 618438656 129342 4294967295 134512640 135987407 3221224560 3221191904 134892994 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 150986 129342 364 364 0 150622 0
[pid=10289] vsize: 603944
Current children cumulated CPU time (s) 79.85
Current children cumulated vsize (Kb) 603944

[startup+90.0091 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4005 0 -1 0 231380 0 0 0 8511 474 0 0 25 0 1 0 22067497 674041856 141509 4294967295 134512640 135987407 3221224560 3221195600 134877710 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 164561 141509 364 364 0 164197 0
[pid=10289] vsize: 658244
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 658244



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+98.4164 s]
Raw data (loadavg): 0.98 0.96 0.96 1/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) T 10288 10289 4005 0 -1 0 242948 0 0 0 9328 497 0 0 25 0 1 0 22067497 960069632 152872 4294967295 134512640 135987407 3221224560 3221177008 135544035 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10289/statm): 234392 152872 364 364 0 234028 0
[pid=10289] vsize: 937568
Current children cumulated CPU time (s) 98.25
Current children cumulated vsize (Kb) 937568

Sending SIGTERM to -10289
Sleeping 2 seconds

[startup+100.009 s]
Raw data (loadavg): 0.98 0.96 0.96 1/56 10290
Raw data (/proc/10289/stat): 10289 (pb2sat) S 10288 10289 4005 0 -1 0 242949 0 0 0 9330 497 0 0 25 0 1 0 22067497 960069632 152873 4294967295 134512640 135987407 3221224560 3221175464 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 234392 152873 364 364 0 234028 0
[pid=10289] vsize: 937568
Current children cumulated CPU time (s) 98.27
Current children cumulated vsize (Kb) 937568
Sending SIGKILL to -10289
One traced child (pid=10289) 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): 100.734
CPU time (s): 98.585
CPU user time (s): 93.3018
CPU system time (s): 5.2832
CPU usage (%): 97.8671
Max. virtual memory (cumulated for all children) (Kb): 937568

Verifier Data

ERROR: no interpretation found !