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-mzzv42z.opb
MD5SUMbc275113592d0f0914bb7f3c346a4153
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -7100
Optimality of the best value was proved NO
Number of terms in the objective function 714
Biggest coefficient in the objective function 559
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 66891
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 1117
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 66891
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.04
Number of variables12596
Total number of constraints22177
Number of constraints which are clauses4
Number of constraints which are cardinality constraints (but not clauses)17162
Number of constraints which are nor clauses,nor cardinality constraints5011
Minimum length of a constraint1
Maximum length of a constraint80

Trace number 35207 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-28 12:26:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24514 boxname=wulflinc24 idbench=986 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bc275113592d0f0914bb7f3c346a4153  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-mzzv42z.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-mzzv42z.opb
IDLAUNCH: 24514
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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	: 3
cpu MHz		: 451.080
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:        709892 kB
Buffers:         36028 kB
Cached:         266208 kB
SwapCached:        636 kB
Active:          22996 kB
Inactive:       281356 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        709640 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5148 kB
Slab:            14672 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:27:58 (client local time) WITH STATUS 1 IN 103.794 SECONDS
stats: 24514 7 103.794 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): 1.01 0.96 0.91 2/54 20941
Raw data (stat): 20941 (runsolver) R 20940 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864788578 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+9.99951 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 28427 0 0 0 935 63 0 0 25 0 1 0 864788578 87613440 17304 4294967295 134512640 135726644 3221224576 3221059300 134604404 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21390 17304 300 300 0 21090 0
vsize: 85560
[startup+20.0002 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 58466 0 0 0 1878 121 0 0 25 0 1 0 864788578 175599616 36112 4294967295 134512640 135726644 3221224576 3220995380 134608951 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42871 36112 300 300 0 42571 0
vsize: 171484
[startup+30.0005 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 99255 0 0 0 2798 201 0 0 25 0 1 0 864788578 332648448 54704 4294967295 134512640 135726644 3221224576 3221160400 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81213 54704 300 300 0 80913 0
vsize: 324852
[startup+40.0016 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 117277 0 0 0 3760 239 0 0 25 0 1 0 864788578 349679616 72482 4294967295 134512640 135726644 3221224576 3221126112 134554815 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85371 72482 300 300 0 85071 0
vsize: 341484
[startup+50.0063 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 163326 0 0 0 4673 327 0 0 25 0 1 0 864788578 563523584 117327 4294967295 134512640 135726644 3221224576 3221043616 135278614 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137579 117327 300 300 0 137279 0
vsize: 550316
[startup+60.0072 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 198248 0 0 0 5594 406 0 0 25 0 1 0 864788578 630628352 109074 4294967295 134512640 135726644 3221224576 3221166400 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153962 109074 300 300 0 153662 0
vsize: 615848
[startup+70.0075 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 211103 0 0 0 6568 432 0 0 25 0 1 0 864788578 630628352 121704 4294967295 134512640 135726644 3221224576 3221100592 134784431 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153962 121704 300 300 0 153662 0
vsize: 615848
[startup+80.0113 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 231793 0 0 0 7523 477 0 0 25 0 1 0 864788578 659148800 142152 4294967295 134512640 135726644 3221224576 3221112512 134554787 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160925 142154 300 300 0 160625 0
vsize: 643700
[startup+90.0119 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 248731 0 0 0 8489 512 0 0 25 0 1 0 864788578 733540352 158896 4294967295 134512640 135726644 3221224576 3221081348 134603674 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179087 158897 300 300 0 178787 0
vsize: 716348
[startup+100.012 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 266090 0 0 0 9451 550 0 0 25 0 1 0 864788578 759054336 176056 4294967295 134512640 135726644 3221224576 3221222596 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185316 176056 300 300 0 185016 0
vsize: 741264
[startup+103.806 s]
Raw data (loadavg): 1.00 0.97 0.91 1/53 20941
Raw data (stat): 20941 (pb2sat) R 20940 4613 4612 0 -1 0 266090 0 0 0 9451 550 0 0 25 0 1 0 864788578 759054336 176056 4294967295 134512640 135726644 3221224576 3221222596 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185316 176056 300 300 0 185016 0
vsize: 0

Child status: 1
Real time (s): 103.805
CPU time (s): 103.794
CPU user time (s): 97.9271
CPU system time (s): 5.86711
CPU usage (%): 99.9896
Max. virtual memory (Kb): 741264
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####