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-seba.opb
MD5SUM41b5898e0f1b65f739b9a89af7596ef6
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 7565
Biggest coefficient in the objective function 258342282854400
Number of bits for the biggest coefficient in the objective function 48
Sum of the numbers in the objective function 4664562894591719
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 258342282854400
Number of bits of the biggest number in a constraint 48
Biggest sum of numbers in a constraint 4664562894591719
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 benchmark1259.63
Number of variables23376
Total number of constraints1029
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 constraints1029
Minimum length of a constraint10
Maximum length of a constraint496

Trace number 35093 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-28 12:13:05 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24402 boxname=wulflinc27 idbench=874 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  41b5898e0f1b65f739b9a89af7596ef6  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-seba.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-seba.opb
IDLAUNCH: 24402
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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:        692764 kB
Buffers:         33988 kB
Cached:         277156 kB
SwapCached:        704 kB
Active:          26812 kB
Inactive:       286448 kB
HighTotal:      131008 kB
HighFree:        58856 kB
LowTotal:       903652 kB
LowFree:        633908 kB
SwapTotal:     2097892 kB
SwapFree:      2096316 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            23040 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:14:49 (client local time) WITH STATUS 1 IN 103.117 SECONDS
stats: 24402 7 103.117 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 18785
Raw data (stat): 18785 (runsolver) R 18784 3394 3393 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864706237 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+10.0006 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 27970 0 0 0 938 61 0 0 25 0 1 0 864706237 90566656 16850 4294967295 134512640 135726644 3221224576 3218310400 135297953 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22111 16852 300 300 0 21811 0
vsize: 88444
[startup+20.0014 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 57651 0 0 0 1877 122 0 0 25 0 1 0 864706237 179363840 35293 4294967295 134512640 135726644 3221224576 3218296364 135280581 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43790 35295 300 300 0 43490 0
vsize: 175160
[startup+30.0022 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 97595 0 0 0 2799 200 0 0 25 0 1 0 864706237 299884544 53033 4294967295 134512640 135726644 3221224576 3218362864 134767049 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73214 53034 300 300 0 72914 0
vsize: 292856
[startup+40.0028 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 115757 0 0 0 3763 237 0 0 25 0 1 0 864706237 353992704 70960 4294967295 134512640 135726644 3221224576 3218451812 134558138 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86424 70960 300 300 0 86124 0
vsize: 345696
[startup+50.0039 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 160682 0 0 0 4685 314 0 0 25 0 1 0 864706237 563781632 114684 4294967295 134512640 135726644 3221224576 3218882816 135279087 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137642 114684 300 300 0 137342 0
vsize: 550568
[startup+60.0036 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 195612 0 0 0 5607 393 0 0 25 0 1 0 864706237 597331968 106414 4294967295 134512640 135726644 3221224576 3218448552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145833 106415 300 300 0 145533 0
vsize: 583332
[startup+70.0048 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 208955 0 0 0 6578 422 0 0 25 0 1 0 864706237 636293120 119536 4294967295 134512640 135726644 3221224576 3218479032 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155345 119536 300 300 0 155045 0
vsize: 621380
[startup+80.0053 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 230457 0 0 0 7536 464 0 0 25 0 1 0 864706237 668332032 140796 4294967295 134512640 135726644 3221224576 3218207832 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163167 140796 300 300 0 162867 0
vsize: 652668
[startup+90.0052 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 250932 0 0 0 8496 504 0 0 25 0 1 0 864706237 747995136 161038 4294967295 134512640 135726644 3221224576 3218216000 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182616 161038 300 300 0 182316 0
vsize: 730464
[startup+100.006 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 262949 0 0 0 9472 529 0 0 25 0 1 0 864706237 766074880 172886 4294967295 134512640 135726644 3221224576 3221222972 135279149 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187030 172886 300 300 0 186730 0
vsize: 748120
[startup+103.112 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 18785
Raw data (stat): 18785 (pb2sat) R 18784 3394 3393 0 -1 0 262949 0 0 0 9472 529 0 0 25 0 1 0 864706237 766074880 172886 4294967295 134512640 135726644 3221224576 3221222972 135279149 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187030 172886 300 300 0 186730 0
vsize: 0

Child status: 1
Real time (s): 103.112
CPU time (s): 103.117
CPU user time (s): 97.4822
CPU system time (s): 5.63514
CPU usage (%): 100.005
Max. virtual memory (Kb): 748120
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####