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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scfxm3.opb
MD5SUM4a3de02f6262a734aceb5f1aba22728b
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 1380
Biggest coefficient in the objective function 5242880
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 412089975
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 52428800000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 319170501375
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.897863
Number of variables27420
Total number of constraints990
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 constraints990
Minimum length of a constraint20
Maximum length of a constraint1140

Trace number 42732 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 14:12:24 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25949 boxname=wulflinc5 idbench=1249 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4a3de02f6262a734aceb5f1aba22728b  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-scfxm3.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-scfxm3.opb
IDLAUNCH: 25949
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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	: 2
cpu MHz		: 451.007
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:        676336 kB
Buffers:         22140 kB
Cached:         312844 kB
SwapCached:        664 kB
Active:          27272 kB
Inactive:       309776 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        676084 kB
SwapTotal:     2097136 kB
SwapFree:      2095532 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15572 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:14:20 (client local time) WITH STATUS 1 IN 115.103 SECONDS
stats: 25949 7 115.103 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): 0.92 0.98 0.92 2/54 15779
Raw data (stat): 15779 (runsolver) R 15778 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971388606 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): 0.93 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 27885 0 0 0 944 55 0 0 25 0 1 0 971388606 87121920 16986 4294967295 134512640 135730672 3221224576 3221090876 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21270 16986 301 301 0 20969 0
vsize: 85080
[startup+20.0007 s]
Raw data (loadavg): 0.94 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 54942 0 0 0 1891 107 0 0 25 0 1 0 971388606 171204608 32844 4294967295 134512640 135730672 3221224576 3221092268 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 41798 32844 301 301 0 41497 0
vsize: 167192
[startup+30.0011 s]
Raw data (loadavg): 0.95 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 94747 0 0 0 2813 185 0 0 25 0 1 0 971388606 297136128 50477 4294967295 134512640 135730672 3221224576 3221097024 134610086 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72543 50477 301 301 0 72242 0
vsize: 290172
[startup+40.0022 s]
Raw data (loadavg): 0.96 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 107837 0 0 0 3791 208 0 0 25 0 1 0 971388606 337448960 63361 4294967295 134512640 135730672 3221224576 3221097960 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82385 63361 301 301 0 82084 0
vsize: 329540
[startup+50.0032 s]
Raw data (loadavg): 0.96 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 126704 0 0 0 4755 244 0 0 25 0 1 0 971388606 364625920 82009 4294967295 134512640 135730672 3221224576 3221098620 135291121 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 89020 82009 301 301 0 88719 0
vsize: 356080
[startup+60.0024 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 175492 0 0 0 5666 333 0 0 25 0 1 0 971388606 695123968 111238 4294967295 134512640 135730672 3221224576 3221107744 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169708 111243 301 301 0 169407 0
vsize: 678832
[startup+70.0035 s]
Raw data (loadavg): 0.97 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 198674 0 0 0 6616 383 0 0 25 0 1 0 971388606 628011008 109678 4294967295 134512640 135730672 3221224576 3221101084 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153323 109678 301 301 0 153022 0
vsize: 613292
[startup+80.0042 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 212118 0 0 0 7589 411 0 0 25 0 1 0 971388606 633688064 122907 4294967295 134512640 135730672 3221224576 3221104688 134785826 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154709 122909 301 301 0 154408 0
vsize: 618836
[startup+90.0049 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 230708 0 0 0 8552 447 0 0 25 0 1 0 971388606 660451328 141281 4294967295 134512640 135730672 3221224576 3221104536 135284325 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161243 141282 301 301 0 160942 0
vsize: 644972
[startup+100.004 s]
Raw data (loadavg): 0.98 0.98 0.92 2/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 245646 0 0 0 9524 476 0 0 25 0 1 0 971388606 732176384 156045 4294967295 134512640 135730672 3221224576 3221110952 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178754 156045 301 301 0 178453 0
vsize: 715016
[startup+110.005 s]
Raw data (loadavg): 0.98 0.98 0.92 3/54 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 263454 0 0 0 10486 512 0 0 25 0 1 0 971388606 758771712 173647 4294967295 134512640 135730672 3221224576 3221222692 134540222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185247 173647 301 301 0 184946 0
vsize: 740988
[startup+115.132 s]
Raw data (loadavg): 0.99 0.98 0.92 1/53 15779
Raw data (stat): 15779 (pb2sat-v2) R 15778 7266 7265 0 -1 0 263454 0 0 0 10486 512 0 0 25 0 1 0 971388606 758771712 173647 4294967295 134512640 135730672 3221224576 3221222692 134540222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185247 173647 301 301 0 184946 0
vsize: 0

Child status: 1
Real time (s): 115.131
CPU time (s): 115.103
CPU user time (s): 109.623
CPU system time (s): 5.47917
CPU usage (%): 99.9751
Max. virtual memory (Kb): 740988
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####