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/MIPLIB/miplib/normalized-mps-v2-13-7-qiu.opb
MD5SUM3d2c1e8e1ac719fa835886a3b753eac3
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 5328
Biggest coefficient in the objective function 8885108736
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 4692033563496
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 8885108736
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 4692033563496
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.136978
Number of variables15888
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 constraint21
Maximum length of a constraint3960

Trace number 35558 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-28 13:23:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24852 boxname=wulflinc18 idbench=1324 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3d2c1e8e1ac719fa835886a3b753eac3  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-qiu.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-qiu.opb
IDLAUNCH: 24852
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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		: 451.177
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:        732048 kB
Buffers:         33492 kB
Cached:         237172 kB
SwapCached:        792 kB
Active:          21872 kB
Inactive:       250936 kB
HighTotal:      131008 kB
HighFree:        34244 kB
LowTotal:       903652 kB
LowFree:        697804 kB
SwapTotal:     2097892 kB
SwapFree:      2096240 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            24132 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:25:33 (client local time) WITH STATUS 1 IN 108.37 SECONDS
stats: 24852 7 108.37 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): 0.86 0.94 0.92 2/54 2778
Raw data (stat): 2778 (runsolver) R 2777 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865121288 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): 0.95 0.96 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 29075 0 0 0 936 63 0 0 25 0 1 0 865121288 90222592 17950 4294967295 134512640 135726644 3221224592 3219120992 134784759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22027 17953 300 300 0 21727 0
vsize: 88108
[startup+20.0055 s]
Raw data (loadavg): 0.96 0.96 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 58609 0 0 0 1877 123 0 0 25 0 1 0 865121288 177397760 36258 4294967295 134512640 135726644 3221224592 3219179344 134554574 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43310 36258 300 300 0 43010 0
vsize: 173240
[startup+30.0065 s]
Raw data (loadavg): 0.97 0.96 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 99101 0 0 0 2797 202 0 0 25 0 1 0 865121288 296964096 54547 4294967295 134512640 135726644 3221224592 3219089308 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72501 54547 300 300 0 72201 0
vsize: 290004
[startup+40.0063 s]
Raw data (loadavg): 0.97 0.96 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 116854 0 0 0 3764 236 0 0 25 0 1 0 865121288 350117888 72068 4294967295 134512640 135726644 3221224592 3219097048 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85478 72069 300 300 0 85178 0
vsize: 341912
[startup+50.0063 s]
Raw data (loadavg): 0.97 0.96 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 159585 0 0 0 4684 316 0 0 25 0 1 0 865121288 558960640 113720 4294967295 134512640 135726644 3221224592 3219280376 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136465 113723 300 300 0 136165 0
vsize: 545860
[startup+60.0066 s]
Raw data (loadavg): 0.98 0.96 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 197585 0 0 0 5600 400 0 0 25 0 1 0 865121288 628224000 109432 4294967295 134512640 135726644 3221224592 3219139616 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153375 109432 300 300 0 153075 0
vsize: 613500
[startup+70.0071 s]
Raw data (loadavg): 0.98 0.96 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 210727 0 0 0 6572 428 0 0 25 0 1 0 865121288 631332864 122352 4294967295 134512640 135726644 3221224592 3219204568 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154134 122352 300 300 0 153834 0
vsize: 616536
[startup+80.008 s]
Raw data (loadavg): 0.98 0.97 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 231502 0 0 0 7528 472 0 0 25 0 1 0 865121288 661340160 142886 4294967295 134512640 135726644 3221224592 3219154496 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161460 142887 300 300 0 161160 0
vsize: 645840
[startup+90.0079 s]
Raw data (loadavg): 0.99 0.97 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 248404 0 0 0 8493 507 0 0 25 0 1 0 865121288 735866880 159592 4294967295 134512640 135726644 3221224592 3219132872 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179655 159592 300 300 0 179355 0
vsize: 718620
[startup+100.008 s]
Raw data (loadavg): 1.06 0.98 0.93 2/54 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 265284 0 0 0 9460 541 0 0 25 0 1 0 865121288 760840192 176255 4294967295 134512640 135726644 3221224592 3221222720 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185752 176255 300 300 0 185452 0
vsize: 743008
[startup+108.37 s]
Raw data (loadavg): 1.05 0.98 0.93 1/53 2778
Raw data (stat): 2778 (pb2sat) R 2777 24172 24171 0 -1 0 265284 0 0 0 9460 541 0 0 25 0 1 0 865121288 760840192 176255 4294967295 134512640 135726644 3221224592 3221222720 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185752 176255 300 300 0 185452 0
vsize: 0

Child status: 1
Real time (s): 108.369
CPU time (s): 108.37
CPU user time (s): 102.605
CPU system time (s): 5.76412
CPU usage (%): 100
Max. virtual memory (Kb): 743008
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####