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-v2-13-7/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos12.opb
MD5SUM8be56d63285d7b46f1a8393a6f228d5d
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5243135
Optimality of the best value was proved NO
Number of terms in the objective function 8960
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 469761600
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 524288
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 469761600
Number of bits of the biggest sum of numbers29
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1230.45
Number of variables16548
Total number of constraints11747
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)3136
Number of constraints which are nor clauses,nor cardinality constraints8611
Minimum length of a constraint1
Maximum length of a constraint560

Trace number 35723 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-28 13:56:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25032 boxname=wulflinc1 idbench=1504 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8be56d63285d7b46f1a8393a6f228d5d  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-neos12.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-neos12.opb
IDLAUNCH: 25032
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        710644 kB
Buffers:         36344 kB
Cached:         263400 kB
SwapCached:        680 kB
Active:          27920 kB
Inactive:       274140 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        710392 kB
SwapTotal:     2097136 kB
SwapFree:      2095368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            16168 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:58:02 (client local time) WITH STATUS 1 IN 111.033 SECONDS
stats: 25032 7 111.033 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): 0.91 0.93 0.90 1/55 22025
Raw data (stat): 22025 (runsolver) R 22024 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 750252648 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0005 s]
Raw data (loadavg): 0.92 0.93 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 27060 0 0 0 942 57 0 0 25 0 1 0 750252648 88637440 15963 4294967295 134512640 135726644 3221224592 3217817768 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21640 15964 300 300 0 21340 0
vsize: 86560
[startup+20.0012 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 55887 0 0 0 1884 115 0 0 25 0 1 0 750252648 175034368 33830 4294967295 134512640 135726644 3221224592 3218026896 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42733 33830 300 300 0 42433 0
vsize: 170932
[startup+30.001 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 97174 0 0 0 2798 202 0 0 25 0 1 0 750252648 301838336 53435 4294967295 134512640 135726644 3221224592 3217945744 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73691 53436 300 300 0 73391 0
vsize: 294764
[startup+40.0008 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 112846 0 0 0 3763 237 0 0 25 0 1 0 750252648 346746880 68878 4294967295 134512640 135726644 3221224592 3218846896 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84655 68878 300 300 0 84355 0
vsize: 338620
[startup+50.0017 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 134701 0 0 0 4715 285 0 0 25 0 1 0 750252648 520986624 90443 4294967295 134512640 135726644 3221224592 3218296540 135298010 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 127194 90446 300 300 0 126894 0
vsize: 508776
[startup+60.0014 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 194472 0 0 0 5593 407 0 0 25 0 1 0 750252648 597786624 107148 4294967295 134512640 135726644 3221224592 3218347768 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145944 107148 300 300 0 145644 0
vsize: 583776
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 206485 0 0 0 6564 436 0 0 25 0 1 0 750252648 631341056 118947 4294967295 134512640 135726644 3221224592 3218684944 134554579 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154136 118949 300 300 0 153836 0
vsize: 616544
[startup+80.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 225649 0 0 0 7524 477 0 0 25 0 1 0 750252648 655130624 137872 4294967295 134512640 135726644 3221224592 3218638096 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159944 137873 300 300 0 159644 0
vsize: 639776
[startup+90.0028 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 242261 0 0 0 8486 515 0 0 25 0 1 0 750252648 729251840 154292 4294967295 134512640 135726644 3221224592 3218913368 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178040 154292 300 300 0 177740 0
vsize: 712160
[startup+100.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 262562 0 0 0 9442 559 0 0 25 0 1 0 750252648 758312960 174357 4294967295 134512640 135726644 3221224592 3219439280 134767076 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185135 174357 300 300 0 184835 0
vsize: 740540
[startup+110.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 265479 0 0 0 10420 580 0 0 25 0 1 0 750252648 410955776 99909 4294967295 134512640 135726644 3221224592 3221222956 135280433 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100331 99909 300 300 0 100031 0
vsize: 401324
[startup+111.03 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 22025
Raw data (stat): 22025 (pb2sat) R 22024 8378 8377 0 -1 0 265479 0 0 0 10420 580 0 0 25 0 1 0 750252648 410955776 99909 4294967295 134512640 135726644 3221224592 3221222956 135280433 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100331 99909 300 300 0 100031 0
vsize: 0

Child status: 1
Real time (s): 111.03
CPU time (s): 111.033
CPU user time (s): 105.013
CPU system time (s): 6.02008
CPU usage (%): 100.003
Max. virtual memory (Kb): 740540
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####