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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-core2536-691.opb
MD5SUM127ff6a7c180d4ca2c922cfd5e8d4802
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 15554
Biggest coefficient in the objective function 53687091200000000000
Number of bits for the biggest coefficient in the objective function 66
Sum of the numbers in the objective function 215744503004511174656
Number of bits of the sum of numbers in the objective function 68
Biggest number in a constraint 10240000000000000000000
Number of bits of the biggest number in a constraint 74
Biggest sum of numbers in a constraint 10455744503004511862784
Number of bits of the biggest sum of numbers74
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark15.1467
Number of variables15554
Total number of constraints17823
Number of constraints which are clauses2536
Number of constraints which are cardinality constraints (but not clauses)15286
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint15554

Trace number 35379 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-05-28 13:02:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24684 boxname=wulflinc20 idbench=1156 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  127ff6a7c180d4ca2c922cfd5e8d4802  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-core2536-691.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-core2536-691.opb
IDLAUNCH: 24684
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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		: 451.215
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        734204 kB
Buffers:         32504 kB
Cached:         243816 kB
SwapCached:        644 kB
Active:          25004 kB
Inactive:       253392 kB
HighTotal:      131008 kB
HighFree:         9128 kB
LowTotal:       903652 kB
LowFree:        725076 kB
SwapTotal:     2097892 kB
SwapFree:      2096312 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            16296 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:04:40 (client local time) WITH STATUS 1 IN 108.201 SECONDS
stats: 24684 7 108.201 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): 0.93 0.97 0.91 2/54 11377
Raw data (stat): 11377 (runsolver) R 11376 25399 25398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865010287 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0007 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 15735 0 0 0 965 34 0 0 25 0 1 0 865010287 49344512 10272 4294967295 134512640 135726644 3221224576 3214988520 134554775 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 12047 10272 300 300 0 11747 0
vsize: 48188
[startup+20.001 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 49852 0 0 0 1890 109 0 0 25 0 1 0 865010287 155348992 27658 4294967295 134512640 135726644 3221224576 3214977432 135280655 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37927 27658 300 300 0 37627 0
vsize: 151708
[startup+30.0062 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 79897 0 0 0 2834 165 0 0 25 0 1 0 865010287 251133952 47771 4294967295 134512640 135726644 3221224576 3214986564 134783924 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 61312 47771 300 300 0 61012 0
vsize: 245248
[startup+40.0069 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 105826 0 0 0 3780 220 0 0 25 0 1 0 865010287 342454272 61184 4294967295 134512640 135726644 3221224576 3214981228 135298010 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83607 61184 300 300 0 83307 0
vsize: 334428
[startup+50.0086 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 127120 0 0 0 4738 262 0 0 25 0 1 0 865010287 375361536 82216 4294967295 134512640 135726644 3221224576 3214987392 134785053 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 91641 82216 300 300 0 91341 0
vsize: 366564
[startup+60.0089 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 164046 0 0 0 5673 327 0 0 25 0 1 0 865010287 492978176 99546 4294967295 134512640 135726644 3221224576 3214987312 135288897 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120356 99546 300 300 0 120056 0
vsize: 481424
[startup+70.009 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 200679 0 0 0 6596 405 0 0 25 0 1 0 865010287 593641472 111373 4294967295 134512640 135726644 3221224576 3214982528 134554559 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144932 111373 300 300 0 144632 0
vsize: 579728
[startup+80.0152 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 218754 0 0 0 7558 443 0 0 25 0 1 0 865010287 653824000 129225 4294967295 134512640 135726644 3221224576 3214987552 135280586 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159625 129225 300 300 0 159325 0
vsize: 638500
[startup+90.0155 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 239831 0 0 0 8516 485 0 0 25 0 1 0 865010287 685187072 150043 4294967295 134512640 135726644 3221224576 3214981328 134554711 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167282 150043 300 300 0 166982 0
vsize: 669128
[startup+100.016 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 254642 0 0 0 9486 516 0 0 25 0 1 0 865010287 711491584 164611 4294967295 134512640 135726644 3221224576 3221222644 134541622 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173704 164611 300 300 0 173404 0
vsize: 694816
[startup+108.197 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 11377
Raw data (stat): 11377 (pb2sat) R 11376 25399 25398 0 -1 0 254642 0 0 0 9486 516 0 0 25 0 1 0 865010287 711491584 164611 4294967295 134512640 135726644 3221224576 3221222644 134541622 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173704 164611 300 300 0 173404 0
vsize: 0

Child status: 1
Real time (s): 108.196
CPU time (s): 108.201
CPU user time (s): 102.699
CPU system time (s): 5.50116
CPU usage (%): 100.004
Max. virtual memory (Kb): 694816
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####