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).
  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

Namenormalized-opb/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-fit1d.opb
MD5SUMde6e9dcd85d0fedc70e76c82543d6a33
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 11514
Biggest coefficient in the objective function 2949120
Number of bits for the biggest coefficient in the objective function 22
Sum of the numbers in the objective function 462466666
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 3870720
Number of bits of the biggest number in a constraint 22
Biggest sum of numbers in a constraint 580921206
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.18
Number of variables11514
Total number of constraints1050
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 constraints1050
Minimum length of a constraint11
Maximum length of a constraint11514

Trace number 35045 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-28 12:05:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24358 boxname=wulflinc10 idbench=830 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  de6e9dcd85d0fedc70e76c82543d6a33  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-fit1d.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-fit1d.opb
IDLAUNCH: 24358
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 2
cpu MHz		: 450.999
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:        832360 kB
Buffers:         34508 kB
Cached:         145812 kB
SwapCached:         84 kB
Active:          52364 kB
Inactive:       130604 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        832108 kB
SwapTotal:     2097136 kB
SwapFree:      2096728 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5880 kB
Slab:            13608 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:06:56 (client local time) WITH STATUS 1 IN 108.497 SECONDS
stats: 24358 7 108.497 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.92 0.95 0.90 1/54 22222
Raw data (stat): 22222 (runsolver) R 22221 15547 15546 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806456477 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+9.99943 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 22222
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 26723 0 0 0 946 53 0 0 25 0 1 0 806456477 81870848 15621 4294967295 134512640 135726644 3221224576 3216731824 134604392 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19988 15621 300 300 0 19688 0
vsize: 79952
[startup+20 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 55908 0 0 0 1884 115 0 0 25 0 1 0 806456477 177975296 33580 4294967295 134512640 135726644 3221224576 3217070208 134558137 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43451 33580 300 300 0 43151 0
vsize: 173804
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 96865 0 0 0 2801 199 0 0 25 0 1 0 806456477 302280704 52334 4294967295 134512640 135726644 3221224576 3216647820 134604474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73799 52334 300 300 0 73499 0
vsize: 295196
[startup+40.0011 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 114240 0 0 0 3763 236 0 0 25 0 1 0 806456477 352866304 69467 4294967295 134512640 135726644 3221224576 3216797276 134783474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86149 69467 300 300 0 85849 0
vsize: 344596
[startup+50.0017 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 154653 0 0 0 4686 314 0 0 25 0 1 0 806456477 556978176 108887 4294967295 134512640 135726644 3221224576 3216677360 134771702 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135981 108887 300 300 0 135681 0
vsize: 543924
[startup+60.0017 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 195354 0 0 0 5599 401 0 0 25 0 1 0 806456477 599719936 106187 4294967295 134512640 135726644 3221224576 3217035692 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146416 106187 300 300 0 146116 0
vsize: 585664
[startup+70.0018 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 207726 0 0 0 6571 429 0 0 25 0 1 0 806456477 634085376 118340 4294967295 134512640 135726644 3221224576 3217277760 134606393 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154806 118340 300 300 0 154506 0
vsize: 619224
[startup+80.0023 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 229058 0 0 0 7522 477 0 0 25 0 1 0 806456477 665444352 139427 4294967295 134512640 135726644 3221224576 3217004852 134782357 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 162462 139427 300 300 0 162162 0
vsize: 649848
[startup+90.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 250178 0 0 0 8482 518 0 0 25 0 1 0 806456477 746729472 160302 4294967295 134512640 135726644 3221224576 3217371600 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182307 160302 300 300 0 182007 0
vsize: 729228
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 263887 0 0 0 9455 546 0 0 25 0 1 0 806456477 766840832 173808 4294967295 134512640 135726644 3221224576 3221222656 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 187217 173808 300 300 0 186917 0
vsize: 748868
[startup+108.49 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 22224
Raw data (stat): 22222 (pb2sat) R 22221 15547 15546 0 -1 0 263887 0 0 0 9455 546 0 0 25 0 1 0 806456477 766840832 173808 4294967295 134512640 135726644 3221224576 3221222656 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 187217 173808 300 300 0 186917 0
vsize: 0

Child status: 1
Real time (s): 108.49
CPU time (s): 108.497
CPU user time (s): 102.681
CPU system time (s): 5.81512
CPU usage (%): 100.006
Max. virtual memory (Kb): 748868
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####