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-stocfor1.opb
MD5SUM7d2af3956088e44d3dd8bd225cfe1230
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 810
Biggest coefficient in the objective function 159153234378752000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 3935910692489746509
Number of bits of the sum of numbers in the objective function 62
Biggest number in a constraint 159153234378752000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 3935910692489746509
Number of bits of the biggest sum of numbers62
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.226965
Number of variables3330
Total number of constraints117
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 constraints117
Minimum length of a constraint30
Maximum length of a constraint240

Trace number 35110 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-28 12:15:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24416 boxname=wulflinc31 idbench=888 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7d2af3956088e44d3dd8bd225cfe1230  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-stocfor1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-stocfor1.opb
IDLAUNCH: 24416
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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:        845952 kB
Buffers:         34752 kB
Cached:         131340 kB
SwapCached:       1052 kB
Active:          80740 kB
Inactive:        87564 kB
HighTotal:      131008 kB
HighFree:         6804 kB
LowTotal:       903652 kB
LowFree:        839148 kB
SwapTotal:     2097892 kB
SwapFree:      2095928 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            14860 kB
Committed_AS:    63812 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:17:12 (client local time) WITH STATUS 1 IN 103.962 SECONDS
stats: 24416 7 103.962 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): 0.91 0.96 0.91 2/55 19680
Raw data (stat): 19680 (runsolver) R 19679 29618 29617 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864705912 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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+10.0001 s]
Raw data (loadavg): 0.92 0.96 0.91 2/55 19682
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 29724 0 0 0 940 59 0 0 25 0 1 0 864705912 91492352 18562 4294967295 134512640 135726644 3221224576 3220879360 134773398 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22337 18562 300 300 0 22037 0
vsize: 89348
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.96 0.91 2/55 19682
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 58275 0 0 0 1883 116 0 0 25 0 1 0 864705912 179425280 35875 4294967295 134512640 135726644 3221224576 3220880796 135105707 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43805 35875 300 300 0 43505 0
vsize: 175220
[startup+30.0018 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 19682
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 95706 0 0 0 2810 189 0 0 25 0 1 0 864705912 291860480 50752 4294967295 134512640 135726644 3221224576 3220881328 134554572 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71255 50752 300 300 0 70955 0
vsize: 285020
[startup+40.0019 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 19682
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 114395 0 0 0 3774 225 0 0 25 0 1 0 864705912 352354304 69193 4294967295 134512640 135726644 3221224576 3220879280 134783015 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86024 69193 300 300 0 85724 0
vsize: 344096
[startup+50.0029 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 19682
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 154483 0 0 0 4698 301 0 0 25 0 1 0 864705912 480583680 88021 4294967295 134512640 135726644 3221224576 3220881712 135278573 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 117330 88021 300 300 0 117030 0
vsize: 469320
[startup+60.0028 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 19682
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 168785 0 0 0 5669 331 0 0 25 0 1 0 864705912 681914368 102069 4294967295 134512640 135726644 3221224576 3220878992 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166483 102069 300 300 0 166183 0
vsize: 665932
[startup+70.0108 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 19684
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 207372 0 0 0 6590 410 0 0 25 0 1 0 864705912 600035328 115858 4294967295 134512640 135726644 3221224576 3220880160 134773412 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146493 115858 300 300 0 146193 0
vsize: 585972
[startup+80.0121 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 19684
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 224291 0 0 0 7558 443 0 0 25 0 1 0 864705912 659660800 132565 4294967295 134512640 135726644 3221224576 3220879728 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161050 132565 300 300 0 160750 0
vsize: 644200
[startup+90.0131 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 19684
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 244828 0 0 0 8517 484 0 0 25 0 1 0 864705912 692711424 152174 4294967295 134512640 135726644 3221224576 3220879312 135280459 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 169119 152174 300 300 0 168819 0
vsize: 676476
[startup+100.014 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 19684
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 250802 0 0 0 9492 508 0 0 25 0 1 0 864705912 392372224 94394 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95794 94394 300 300 0 95494 0
vsize: 383176
[startup+103.961 s]
Raw data (loadavg): 0.98 0.97 0.91 1/54 19684
Raw data (stat): 19680 (pb2sat) R 19679 29618 29617 0 -1 0 250802 0 0 0 9492 508 0 0 25 0 1 0 864705912 392372224 94394 4294967295 134512640 135726644 3221224576 3221222764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 95794 94394 300 300 0 95494 0
vsize: 0

Child status: 1
Real time (s): 103.961
CPU time (s): 103.962
CPU user time (s): 98.67
CPU system time (s): 5.29219
CPU usage (%): 100.001
Max. virtual memory (Kb): 676476
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####