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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-sctap1.opb
MD5SUM3742d8a4a6db91830db1829244573c45
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 10800
Biggest coefficient in the objective function 42949672960
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 6356551592160
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 42949672960
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 6356551592160
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1221.94
Number of variables14400
Total number of constraints300
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 constraints300
Minimum length of a constraint90
Maximum length of a constraint660

Trace number 42352 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 05:59:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25571 boxname=wulflinc3 idbench=871 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3742d8a4a6db91830db1829244573c45  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-sctap1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-sctap1.opb
IDLAUNCH: 25571
/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:        745728 kB
Buffers:         34388 kB
Cached:         232304 kB
SwapCached:        820 kB
Active:          31004 kB
Inactive:       237828 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        745476 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14384 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:00:45 (client local time) WITH STATUS 1 IN 100.189 SECONDS
stats: 25571 7 100.189 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 0.94 0.90 2/54 17480
Raw data (stat): 17480 (runsolver) R 17479 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968419031 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): 0.92 0.94 0.90 2/54 17480
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 24121 0 0 0 945 53 0 0 25 0 1 0 968419031 77750272 13214 4294967295 134512640 135730672 3221224576 3221177624 135284287 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18982 13215 301 301 0 18681 0
vsize: 75928
[startup+20.0007 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 17480
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 50881 0 0 0 1884 114 0 0 25 0 1 0 968419031 151846912 28985 4294967295 134512640 135730672 3221224576 3221185552 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37072 28985 301 301 0 36771 0
vsize: 148288
[startup+30.0016 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 17480
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 89894 0 0 0 2798 200 0 0 25 0 1 0 968419031 266485760 46295 4294967295 134512640 135730672 3221224576 3221204752 134551433 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65060 46297 301 301 0 64759 0
vsize: 260240
[startup+40.001 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 17480
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 104736 0 0 0 3762 236 0 0 25 0 1 0 968419031 302338048 60869 4294967295 134512640 135730672 3221224576 3221213932 135291216 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73813 60870 301 301 0 73512 0
vsize: 295252
[startup+50.0095 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 17480
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 144296 0 0 0 4685 314 0 0 25 0 1 0 968419031 427937792 81843 4294967295 134512640 135730672 3221224576 3221076988 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 104477 81843 301 301 0 104176 0
vsize: 417908
[startup+60.0108 s]
Raw data (loadavg): 0.96 0.95 0.91 2/57 17483
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 181154 0 0 0 5604 394 0 0 25 0 1 0 968419031 528601088 93900 4294967295 134512640 135730672 3221224576 3221139312 134552216 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129053 93900 301 301 0 128752 0
vsize: 516212
[startup+70.129 s]
Raw data (loadavg): 1.12 0.98 0.92 2/54 17533
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 194143 0 0 0 6584 425 0 0 25 0 1 0 968419031 562155520 106653 4294967295 134512640 135730672 3221224576 3221220956 134607952 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137245 106653 301 301 0 136944 0
vsize: 548980
[startup+80.1297 s]
Raw data (loadavg): 1.10 0.98 0.92 2/54 17533
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 210728 0 0 0 7546 463 0 0 25 0 1 0 968419031 571346944 122976 4294967295 134512640 135730672 3221224576 3221184760 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 139489 122976 301 301 0 139188 0
vsize: 557956
[startup+90.1299 s]
Raw data (loadavg): 1.09 0.98 0.92 2/54 17533
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 225861 0 0 0 8508 501 0 0 25 0 1 0 968419031 637091840 137902 4294967295 134512640 135730672 3221224576 3221011552 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155540 137902 301 301 0 155239 0
vsize: 622160
[startup+100.13 s]
Raw data (loadavg): 1.07 0.98 0.92 2/54 17533
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 239918 0 0 0 9459 550 0 0 25 0 1 0 968419031 152494080 37070 4294967295 134512640 135730672 3221224576 3221223020 135281239 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37230 37070 301 301 0 36929 0
vsize: 148920
[startup+100.217 s]
Raw data (loadavg): 1.07 0.98 0.92 1/53 17533
Raw data (stat): 17480 (pb2sat-v2) R 17479 20224 20223 0 -1 0 239918 0 0 0 9459 550 0 0 25 0 1 0 968419031 152494080 37070 4294967295 134512640 135730672 3221224576 3221223020 135281239 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37230 37070 301 301 0 36929 0
vsize: 0

Child status: 1
Real time (s): 100.217
CPU time (s): 100.189
CPU user time (s): 94.5976
CPU system time (s): 5.59115
CPU usage (%): 99.9717
Max. virtual memory (Kb): 622160
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####