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-khb05250.opb
MD5SUM18d2c1f575fe90b4288795c634aa1a5b
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 37494
Biggest coefficient in the objective function 6251324899328
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 5652283493428566
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 6251324899328
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 5652283493428566
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1208.43
Number of variables38297
Total number of constraints126
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)24
Number of constraints which are nor clauses,nor cardinality constraints102
Minimum length of a constraint1
Maximum length of a constraint1530

Trace number 42395 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 06:39:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25615 boxname=wulflinc4 idbench=915 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  18d2c1f575fe90b4288795c634aa1a5b  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-khb05250.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-khb05250.opb
IDLAUNCH: 25615
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
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:        696784 kB
Buffers:         34404 kB
Cached:         281056 kB
SwapCached:        944 kB
Active:          31476 kB
Inactive:       286112 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        696532 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14632 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:41:56 (client local time) WITH STATUS 1 IN 126.013 SECONDS
stats: 25615 7 126.013 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): 0.85 0.96 0.91 1/54 23079
Raw data (stat): 23079 (runsolver) R 23078 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968662640 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+10.0004 s]
Raw data (loadavg): 0.87 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 2255 0 0 0 992 6 0 0 25 0 1 0 968662640 8237056 1579 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2011 1579 301 301 0 1710 0
vsize: 8044
[startup+20.0003 s]
Raw data (loadavg): 0.89 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 2818 0 0 0 1990 8 0 0 25 0 1 0 968662640 9859072 2133 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2407 2133 301 301 0 2106 0
vsize: 9628
[startup+30.0013 s]
Raw data (loadavg): 0.91 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 4492 0 0 0 2986 11 0 0 25 0 1 0 968662640 15794176 3093 4294967295 134512640 135730672 3221224576 3220897708 135291070 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3856 3093 301 301 0 3555 0
vsize: 15424
[startup+40.0011 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 35703 0 0 0 3921 77 0 0 25 0 1 0 968662640 130764800 24318 4294967295 134512640 135730672 3221224576 3220947928 135284962 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 31925 24318 301 301 0 31624 0
vsize: 127700
[startup+50.002 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 57904 0 0 0 4866 132 0 0 25 0 1 0 968662640 162582528 35732 4294967295 134512640 135730672 3221224576 3220998684 134637879 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 39693 35732 301 301 0 39392 0
vsize: 158772
[startup+60.0024 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 95290 0 0 0 5789 209 0 0 25 0 1 0 968662640 306720768 51433 4294967295 134512640 135730672 3221224576 3221023744 134776286 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 74883 51433 301 301 0 74582 0
vsize: 299532
[startup+70.0028 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 112036 0 0 0 6748 250 0 0 25 0 1 0 968662640 313479168 67906 4294967295 134512640 135730672 3221224576 3221012992 134770715 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 76533 67906 301 301 0 76232 0
vsize: 306132
[startup+80.0036 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 164495 0 0 0 7647 351 0 0 25 0 1 0 968662640 638423040 101799 4294967295 134512640 135730672 3221224576 3220924496 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155865 101799 301 301 0 155564 0
vsize: 623460
[startup+90.0035 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 187279 0 0 0 8591 406 0 0 25 0 1 0 968662640 571310080 99787 4294967295 134512640 135730672 3221224576 3221221180 134608030 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139480 99787 301 301 0 139179 0
vsize: 557920
[startup+100.004 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 202554 0 0 0 9557 441 0 0 25 0 1 0 968662640 571670528 114788 4294967295 134512640 135730672 3221224576 3221069600 134770235 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139568 114788 301 301 0 139267 0
vsize: 558272
[startup+110.005 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 219506 0 0 0 10514 484 0 0 25 0 1 0 968662640 633761792 131487 4294967295 134512640 135730672 3221224576 3220917712 134783984 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154727 131487 301 301 0 154426 0
vsize: 618908
[startup+120.007 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 235302 0 0 0 11474 524 0 0 25 0 1 0 968662640 649846784 147070 4294967295 134512640 135730672 3221224576 3221220832 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158654 147070 301 301 0 158353 0
vsize: 634616
[startup+126.034 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 23079
Raw data (stat): 23079 (pb2sat-v2) R 23078 21152 21151 0 -1 0 235302 0 0 0 11474 524 0 0 25 0 1 0 968662640 649846784 147070 4294967295 134512640 135730672 3221224576 3221220832 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158654 147070 301 301 0 158353 0
vsize: 0

Child status: 1
Real time (s): 126.033
CPU time (s): 126.013
CPU user time (s): 120.307
CPU system time (s): 5.70613
CPU usage (%): 99.9838
Max. virtual memory (Kb): 634616
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####