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-pipex.opb
MD5SUMb9c1029cc1d97a8d60e984f96f5d3267
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 788263
Optimality of the best value was proved NO
Number of terms in the objective function 48
Biggest coefficient in the objective function 107865
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 2514082
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 107865
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 2514082
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02684
Number of variables48
Total number of constraints73
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 constraints9
Minimum length of a constraint1
Maximum length of a constraint16

Trace number 42802 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 15:26:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26023 boxname=wulflinc3 idbench=1323 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-pipex.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-pipex.opb
IDLAUNCH: 26023
/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:        721160 kB
Buffers:         19960 kB
Cached:         271856 kB
SwapCached:        788 kB
Active:          33088 kB
Inactive:       260832 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        720908 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            13960 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 15:28:24 (client local time) WITH STATUS 1 IN 120.371 SECONDS
stats: 26023 7 120.371 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 828241
c small objective detected

	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): 0.83 0.93 0.90 1/54 26034
Raw data (stat): 26034 (runsolver) R 26033 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971823342 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+10.0005 s]
Raw data (loadavg): 0.86 0.93 0.90 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 29057 0 0 0 941 57 0 0 25 0 1 0 971823342 89616384 17988 4294967295 134512640 135730672 3221224576 3221196720 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21879 17988 301 301 0 21578 0
vsize: 87516
[startup+20.0013 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 56684 0 0 0 1888 110 0 0 25 0 1 0 971823342 175337472 34397 4294967295 134512640 135730672 3221224576 3221204880 135284212 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42807 34397 301 301 0 42506 0
vsize: 171228
[startup+30.0021 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 89555 0 0 0 2825 172 0 0 25 0 1 0 971823342 343887872 57352 4294967295 134512640 135730672 3221224576 3221197776 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83957 57356 301 301 0 83656 0
vsize: 335828
[startup+40.0019 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 109376 0 0 0 3786 211 0 0 25 0 1 0 971823342 342724608 64680 4294967295 134512640 135730672 3221224576 3221199468 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83673 64680 301 301 0 83372 0
vsize: 334692
[startup+50.0028 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 130606 0 0 0 4751 247 0 0 25 0 1 0 971823342 519159808 85612 4294967295 134512640 135730672 3221224576 3221200792 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 126748 85615 301 301 0 126447 0
vsize: 506992
[startup+60.0026 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 163405 0 0 0 5689 309 0 0 25 0 1 0 971823342 488415232 98748 4294967295 134512640 135730672 3221224576 3221199128 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119242 98748 301 301 0 118941 0
vsize: 476968
[startup+70.0024 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 197794 0 0 0 6616 382 0 0 25 0 1 0 971823342 589078528 108378 4294967295 134512640 135730672 3221224576 3221198688 134549532 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143818 108378 301 301 0 143517 0
vsize: 575272
[startup+80.0032 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 211150 0 0 0 7590 408 0 0 25 0 1 0 971823342 637652992 121556 4294967295 134512640 135730672 3221224576 3221200508 134637856 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155677 121556 301 301 0 155376 0
vsize: 622708
[startup+90.0031 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 228972 0 0 0 8559 439 0 0 25 0 1 0 971823342 665419776 139173 4294967295 134512640 135730672 3221224576 3221203992 135284119 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162456 139174 301 301 0 162155 0
vsize: 649824
[startup+100.004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 246418 0 0 0 9527 472 0 0 25 0 1 0 971823342 691511296 156420 4294967295 134512640 135730672 3221224576 3221200924 135291096 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168826 156420 301 301 0 168525 0
vsize: 675304
[startup+110.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 259596 0 0 0 10500 499 0 0 25 0 1 0 971823342 762368000 169446 4294967295 134512640 135730672 3221224576 3221222692 134540222 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186125 169446 301 301 0 185824 0
vsize: 744500
[startup+120.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 259597 0 0 0 11486 513 0 0 25 0 1 0 971823342 399036416 96974 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97421 96974 301 301 0 97120 0
vsize: 389684
[startup+120.381 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 26034
Raw data (stat): 26034 (pb2sat-v2) R 26033 20224 20223 0 -1 0 259597 0 0 0 11486 513 0 0 25 0 1 0 971823342 399036416 96974 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97421 96974 301 301 0 97120 0
vsize: 0

Child status: 1
Real time (s): 120.381
CPU time (s): 120.371
CPU user time (s): 115.033
CPU system time (s): 5.33819
CPU usage (%): 99.9919
Max. virtual memory (Kb): 744500
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####