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/miplib/normalized-mps-v2-20-10-qiu.opb
MD5SUMd644054326940d86bc7f3576874ac5a9
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 7968
Biggest coefficient in the objective function 9098351345664
Number of bits for the biggest coefficient in the objective function 44
Sum of the numbers in the objective function 4803935111035752
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 9098351345664
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 4803935111035752
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.206968
Number of variables23808
Total number of constraints1192
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 constraints1192
Minimum length of a constraint31
Maximum length of a constraint5940

Trace number 35171 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 12:21:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24468 boxname=wulflinc2 idbench=940 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d644054326940d86bc7f3576874ac5a9  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-qiu.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-qiu.opb
IDLAUNCH: 24468
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        720672 kB
Buffers:         37132 kB
Cached:         253768 kB
SwapCached:        820 kB
Active:          24960 kB
Inactive:       268136 kB
HighTotal:      131008 kB
HighFree:        28896 kB
LowTotal:       903652 kB
LowFree:        691776 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            15100 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:22:54 (client local time) WITH STATUS 1 IN 108.636 SECONDS
stats: 24468 7 108.636 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): 0.90 0.93 0.90 2/54 10142
Raw data (stat): 10142 (runsolver) R 10141 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806541797 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+10.0006 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 28267 0 0 0 936 62 0 0 25 0 1 0 806541797 90222592 17153 4294967295 134512640 135726644 3221224592 3218032248 135280678 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22027 17153 300 300 0 21727 0
vsize: 88108
[startup+20.0017 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 57958 0 0 0 1875 124 0 0 25 0 1 0 806541797 177668096 35617 4294967295 134512640 135726644 3221224592 3218033280 134766989 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43376 35617 300 300 0 43076 0
vsize: 173504
[startup+30.0025 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 99383 0 0 0 2791 208 0 0 25 0 1 0 806541797 302514176 54840 4294967295 134512640 135726644 3221224592 3218194908 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73856 54840 300 300 0 73556 0
vsize: 295424
[startup+40.0027 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 116338 0 0 0 3752 247 0 0 25 0 1 0 806541797 350801920 71560 4294967295 134512640 135726644 3221224592 3218211368 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85645 71560 300 300 0 85345 0
vsize: 342580
[startup+50.0038 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 157985 0 0 0 4675 324 0 0 25 0 1 0 806541797 557481984 112187 4294967295 134512640 135726644 3221224592 3218079776 134771717 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 136104 112187 300 300 0 135804 0
vsize: 544416
[startup+60.0046 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 199033 0 0 0 5583 416 0 0 25 0 1 0 806541797 600629248 109857 4294967295 134512640 135726644 3221224592 3218108236 134603611 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146638 109857 300 300 0 146338 0
vsize: 586552
[startup+70.0048 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 211489 0 0 0 6556 443 0 0 25 0 1 0 806541797 634183680 122090 4294967295 134512640 135726644 3221224592 3218046488 134809941 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154830 122090 300 300 0 154530 0
vsize: 619320
[startup+80.0049 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 232137 0 0 0 7513 486 0 0 25 0 1 0 806541797 662298624 142496 4294967295 134512640 135726644 3221224592 3218056932 134554779 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161694 142496 300 300 0 161394 0
vsize: 646776
[startup+90.0057 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 249233 0 0 0 8480 519 0 0 25 0 1 0 806541797 736960512 159395 4294967295 134512640 135726644 3221224592 3218190200 135279148 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179922 159395 300 300 0 179622 0
vsize: 719688
[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 266248 0 0 0 9447 552 0 0 25 0 1 0 806541797 762204160 176183 4294967295 134512640 135726644 3221224592 3221222816 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186085 176183 300 300 0 185785 0
vsize: 744340
[startup+108.639 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 10142
Raw data (stat): 10142 (pb2sat) R 10141 31399 31398 0 -1 0 266248 0 0 0 9447 552 0 0 25 0 1 0 806541797 762204160 176183 4294967295 134512640 135726644 3221224592 3221222816 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186085 176183 300 300 0 185785 0
vsize: 0

Child status: 1
Real time (s): 108.638
CPU time (s): 108.636
CPU user time (s): 102.752
CPU system time (s): 5.8841
CPU usage (%): 99.9986
Max. virtual memory (Kb): 744340
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####