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-scorpion.opb
MD5SUMd78b2a3709ef5514ef5552f6badb37ec
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 8460
Biggest coefficient in the objective function 10788957847552
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 603693086370759
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 33554432000000
Number of bits of the biggest number in a constraint 45
Biggest sum of numbers in a constraint 603693086370759
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.095984
Number of variables10740
Total number of constraints388
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 constraints388
Minimum length of a constraint30
Maximum length of a constraint600

Trace number 42346 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 05:55:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25566 boxname=wulflinc3 idbench=866 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d78b2a3709ef5514ef5552f6badb37ec  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-scorpion.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-scorpion.opb
IDLAUNCH: 25566
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        750536 kB
Buffers:         34356 kB
Cached:         227644 kB
SwapCached:        820 kB
Active:          30508 kB
Inactive:       233704 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        750284 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14144 kB
Committed_AS:    71896 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:56:56 (client local time) WITH STATUS 1 IN 100.272 SECONDS
stats: 25566 7 100.272 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 0.95 0.91 2/54 17294
Raw data (stat): 17294 (runsolver) R 17293 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968396085 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+10.0013 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 25217 0 0 0 942 56 0 0 25 0 1 0 968396085 78663680 14138 4294967295 134512640 135730672 3221224576 3221136984 134607953 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19205 14139 301 301 0 18904 0
vsize: 76820
[startup+20.0019 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 51563 0 0 0 1889 109 0 0 25 0 1 0 968396085 153841664 29511 4294967295 134512640 135730672 3221224576 3221207288 135284287 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37559 29512 301 301 0 37258 0
vsize: 150236
[startup+30.002 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 90191 0 0 0 2808 189 0 0 25 0 1 0 968396085 269156352 46448 4294967295 134512640 135730672 3221224576 3221141712 135282248 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65712 46448 301 301 0 65411 0
vsize: 262848
[startup+40.0032 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 103824 0 0 0 3776 222 0 0 25 0 1 0 968396085 302710784 59827 4294967295 134512640 135730672 3221224576 3221168028 134606736 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73904 59827 301 301 0 73603 0
vsize: 295616
[startup+50.0035 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 145464 0 0 0 4692 305 0 0 25 0 1 0 968396085 501821440 100267 4294967295 134512640 135730672 3221224576 3221198640 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 122515 100267 301 301 0 122214 0
vsize: 490060
[startup+60.0049 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 180821 0 0 0 5612 385 0 0 25 0 1 0 968396085 531177472 93436 4294967295 134512640 135730672 3221224576 3221175856 135284212 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 129682 93436 301 301 0 129381 0
vsize: 518728
[startup+70.0055 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 193782 0 0 0 6582 415 0 0 25 0 1 0 968396085 564731904 106154 4294967295 134512640 135730672 3221224576 3221199488 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137874 106154 301 301 0 137573 0
vsize: 551496
[startup+80.0049 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 209761 0 0 0 7542 454 0 0 25 0 1 0 968396085 568381440 121850 4294967295 134512640 135730672 3221224576 3221193920 134770700 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138765 121850 301 301 0 138464 0
vsize: 555060
[startup+90.0052 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 227053 0 0 0 8502 495 0 0 25 0 1 0 968396085 640880640 138921 4294967295 134512640 135730672 3221224576 3221221008 134540234 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156465 138921 301 301 0 156164 0
vsize: 625860
[startup+100.047 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 241381 0 0 0 9456 544 0 0 25 0 1 0 968396085 146911232 35705 4294967295 134512640 135730672 3221224576 3221222916 135344689 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 35867 35705 301 301 0 35566 0
vsize: 143468
[startup+100.309 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 17294
Raw data (stat): 17294 (pb2sat-v2) R 17293 20224 20223 0 -1 0 241381 0 0 0 9456 544 0 0 25 0 1 0 968396085 146911232 35705 4294967295 134512640 135730672 3221224576 3221222916 135344689 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 35867 35705 301 301 0 35566 0
vsize: 0

Child status: 1
Real time (s): 100.309
CPU time (s): 100.272
CPU user time (s): 94.7436
CPU system time (s): 5.52816
CPU usage (%): 99.963
Max. virtual memory (Kb): 625860
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####