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/MIPLIB/miplib2003/normalized-mps-v2-20-10-pp08a.opb
MD5SUM58b746ba9d27bca658263dee1941983b
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 3424
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 180407058264
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 180407058264
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.282956
Number of variables5344
Total number of constraints200
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)64
Number of constraints which are nor clauses,nor cardinality constraints136
Minimum length of a constraint1
Maximum length of a constraint240

Trace number 35215 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-28 12:27:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24523 boxname=wulflinc27 idbench=995 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  58b746ba9d27bca658263dee1941983b  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-pp08a.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-pp08a.opb
IDLAUNCH: 24523
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        722416 kB
Buffers:         33952 kB
Cached:         248088 kB
SwapCached:        704 kB
Active:          20460 kB
Inactive:       263620 kB
HighTotal:      131008 kB
HighFree:        53284 kB
LowTotal:       903652 kB
LowFree:        669132 kB
SwapTotal:     2097892 kB
SwapFree:      2096316 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            22516 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:29:14 (client local time) WITH STATUS 1 IN 100.877 SECONDS
stats: 24523 7 100.877 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 1/54 19436
Raw data (stat): 19436 (runsolver) D 19435 3394 3393 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 864792989 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0002 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 30850 0 0 0 927 70 0 0 25 0 1 0 864792989 91770880 19832 4294967295 134512640 135726644 3221224576 3220488016 134766518 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22405 19832 300 300 0 22105 0
vsize: 89620
[startup+20.003 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 61087 0 0 0 1863 135 0 0 25 0 1 0 864792989 180330496 39090 4294967295 134512640 135726644 3221224576 3220596056 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44026 39090 300 300 0 43726 0
vsize: 176104
[startup+30.0038 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 100098 0 0 0 2780 218 0 0 25 0 1 0 864792989 332173312 56423 4294967295 134512640 135726644 3221224576 3220463728 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81097 56423 300 300 0 80797 0
vsize: 324388
[startup+40.0036 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 119987 0 0 0 3740 259 0 0 25 0 1 0 864792989 354881536 76055 4294967295 134512640 135726644 3221224576 3220596952 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86641 76056 300 300 0 86341 0
vsize: 346564
[startup+50.0034 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 164116 0 0 0 4653 345 0 0 25 0 1 0 864792989 502026240 101605 4294967295 134512640 135726644 3221224576 3220513280 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 122565 101605 300 300 0 122265 0
vsize: 490260
[startup+60.0033 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 199245 0 0 0 5577 421 0 0 25 0 1 0 864792989 636243968 111971 4294967295 134512640 135726644 3221224576 3220529716 134554779 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155333 111972 300 300 0 155033 0
vsize: 621332
[startup+70.0031 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 213839 0 0 0 6546 453 0 0 25 0 1 0 864792989 636784640 126311 4294967295 134512640 135726644 3221224576 3220649692 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155465 126311 300 300 0 155165 0
vsize: 621860
[startup+80.0069 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 235355 0 0 0 7502 497 0 0 25 0 1 0 864792989 667197440 147580 4294967295 134512640 135726644 3221224576 3220618184 135287557 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162890 147580 300 300 0 162590 0
vsize: 651560
[startup+90.0068 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 252799 0 0 0 8465 534 0 0 25 0 1 0 864792989 742264832 164823 4294967295 134512640 135726644 3221224576 3220613352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 181217 164823 300 300 0 180917 0
vsize: 724868
[startup+100.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 264505 0 0 0 9426 573 0 0 25 0 1 0 864792989 399081472 97010 4294967295 134512640 135726644 3221224576 3221222832 135278591 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97432 97010 300 300 0 97132 0
vsize: 389728
[startup+100.907 s]
Raw data (loadavg): 1.06 0.96 0.91 1/53 19436
Raw data (stat): 19436 (pb2sat) R 19435 3394 3393 0 -1 0 264505 0 0 0 9426 573 0 0 25 0 1 0 864792989 399081472 97010 4294967295 134512640 135726644 3221224576 3221222832 135278591 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97432 97010 300 300 0 97132 0
vsize: 0

Child status: 1
Real time (s): 100.904
CPU time (s): 100.877
CPU user time (s): 94.9486
CPU system time (s): 5.9281
CPU usage (%): 99.9728
Max. virtual memory (Kb): 724868
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####