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/MIPLIB/miplib/normalized-mps-v2-13-7-air02.opb
MD5SUM75acdcffdd43b3d3a30d0459a6bffe45
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6106
Optimality of the best value was proved NO
Number of terms in the objective function 6774
Biggest coefficient in the objective function 4804
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 6613094
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 4804
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 6613094
Number of bits of the biggest sum of numbers23
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.34
Number of variables6774
Total number of constraints6824
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6824
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint3729

Trace number 10379

Launcher Data

LAUNCH ON wulflinc30 THE 2005-09-23 17:59:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9138 boxname=wulflinc30 idbench=934 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  75acdcffdd43b3d3a30d0459a6bffe45  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-air02.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-air02.opb
IDLAUNCH: 9138
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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:        934360 kB
Buffers:         12428 kB
Cached:          70736 kB
SwapCached:          0 kB
Active:          44572 kB
Inactive:        41480 kB
HighTotal:      131008 kB
HighFree:        56252 kB
LowTotal:       903652 kB
LowFree:        878108 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8748 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:01:11 (client local time) WITH STATUS 1 IN 106.846 SECONDS
stats: 9138 7 106.846 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 15142
c big objective detected
c trying from 0 to 511

	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/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22136256 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 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/wulflinc30/normalized-mps-v2-13-7-air02.opb

[startup+10.002 s]
Raw data (loadavg): 0.87 0.94 0.90 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 14258 0 0 0 961 35 0 0 25 0 1 0 22136256 43540480 8718 4294967295 134512640 135987407 3221224560 3220906288 134855001 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10289/statm): 10630 8718 364 364 0 10266 0
[pid=10289] vsize: 42520
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 42520

[startup+20.0028 s]
Raw data (loadavg): 0.89 0.94 0.90 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 44765 0 0 0 1885 107 0 0 25 0 1 0 22136256 135397376 28331 4294967295 134512640 135987407 3221224560 3219336512 134878604 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10289/statm): 33056 28331 364 364 0 32692 0
[pid=10289] vsize: 132224
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 132224

[startup+30.0036 s]
Raw data (loadavg): 0.90 0.94 0.90 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 80962 0 0 0 2805 183 0 0 25 0 1 0 22136256 260370432 48456 4294967295 134512640 135987407 3221224560 3219340428 135484964 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10289/statm): 63567 48456 364 364 0 63203 0
[pid=10289] vsize: 254268
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 254268

[startup+40.0033 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 10289
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 110526 0 0 0 3734 251 0 0 25 0 1 0 22136256 335572992 65493 4294967295 134512640 135987407 3221224560 3219197824 134802880 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10289/statm): 81927 65493 364 364 0 81563 0
[pid=10289] vsize: 327708
Current children cumulated CPU time (s) 39.85
Current children cumulated vsize (Kb) 327708

[startup+50.0041 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 10344
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 128083 0 0 0 4691 291 0 0 25 0 1 0 22136256 395485184 82815 4294967295 134512640 135987407 3221224560 3220317760 134559538 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 96554 82815 364 364 0 96190 0
[pid=10289] vsize: 386216
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 386216

[startup+60.0039 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 10344
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 170081 0 0 0 5598 380 0 0 25 0 1 0 22136256 533024768 105199 4294967295 134512640 135987407 3221224560 3221206720 135477280 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 130133 105199 364 364 0 129769 0
[pid=10289] vsize: 520532
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 520532

[startup+70.0037 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 10344
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 210496 0 0 0 6498 478 0 0 25 0 1 0 22136256 657072128 120819 4294967295 134512640 135987407 3221224560 3219086144 134856594 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 160418 120819 364 364 0 160054 0
[pid=10289] vsize: 641672
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 641672

[startup+80.0045 s]
Raw data (loadavg): 1.00 0.96 0.91 2/55 10344
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 228773 0 0 0 7457 516 0 0 25 0 1 0 22136256 683835392 138847 4294967295 134512640 135987407 3221224560 3219878792 134865857 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 166952 138847 364 364 0 166588 0
[pid=10289] vsize: 667808
Current children cumulated CPU time (s) 79.73
Current children cumulated vsize (Kb) 667808

[startup+90.0043 s]
Raw data (loadavg): 1.00 0.97 0.91 2/55 10344
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 244087 0 0 0 8423 549 0 0 25 0 1 0 22136256 739962880 153953 4294967295 134512640 135987407 3221224560 3219966992 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10289/statm): 180655 153953 364 364 0 180291 0
[pid=10289] vsize: 722620
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 722620

[startup+100.005 s]
Raw data (loadavg): 1.08 0.98 0.91 2/55 10346
Raw data (/proc/10289/stat): 10289 (pb2sat) R 10288 10289 4004 0 -1 0 262449 0 0 0 9381 588 0 0 25 0 1 0 22136256 771694592 172060 4294967295 134512640 135987407 3221224560 3221222756 135479912 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10289/statm): 188402 172060 364 364 0 188038 0
[pid=10289] vsize: 753608
Current children cumulated CPU time (s) 99.69
Current children cumulated vsize (Kb) 753608
One traced child (pid=10289) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.157
CPU time (s): 106.846
CPU user time (s): 100.615
CPU system time (s): 6.23105
CPU usage (%): 99.7096
Max. virtual memory (cumulated for all children) (Kb): 753608

Verifier Data

ERROR: no interpretation found !