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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-swath2.opb
MD5SUM0c26e65f0a67107cc10849baae774e12
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 202485512285885
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.23266
Number of variables38571
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2599
Number of constraints which are nor clauses,nor cardinality constraints5009
Minimum length of a constraint1
Maximum length of a constraint36970

Trace number 43007 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 21:10:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26227 boxname=wulflinc5 idbench=1527 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0c26e65f0a67107cc10849baae774e12  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-swath2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-swath2.opb
IDLAUNCH: 26227
/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:        629052 kB
Buffers:         28880 kB
Cached:         353236 kB
SwapCached:        656 kB
Active:          31312 kB
Inactive:       352820 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        628800 kB
SwapTotal:     2097136 kB
SwapFree:      2095540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15852 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 21:12:58 (client local time) WITH STATUS 1 IN 127.569 SECONDS
stats: 26227 7 127.569 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 0.94 0.90 1/54 20253
Raw data (stat): 20253 (runsolver) R 20252 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973899505 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+10.0003 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 7547 0 0 0 981 17 0 0 25 0 1 0 973899505 24772608 4468 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6048 4468 301 301 0 5747 0
vsize: 24192
[startup+20 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 7591 0 0 0 1980 18 0 0 25 0 1 0 973899505 24772608 4512 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6048 4512 301 301 0 5747 0
vsize: 24192
[startup+30.0012 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 7745 0 0 0 2980 18 0 0 25 0 1 0 973899505 25296896 4537 4294967295 134512640 135730672 3221224576 3221221664 134561664 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6176 4537 301 301 0 5875 0
vsize: 24704
[startup+40.0014 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 40718 0 0 0 3906 92 0 0 25 0 1 0 973899505 156262400 29384 4294967295 134512640 135730672 3221224576 3208431552 135282716 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38150 29384 301 301 0 37849 0
vsize: 152600
[startup+50.0011 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 67022 0 0 0 4848 150 0 0 25 0 1 0 973899505 279289856 44590 4294967295 134512640 135730672 3221224576 3204089848 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68186 44592 301 301 0 67885 0
vsize: 272744
[startup+60.0009 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 102431 0 0 0 5777 222 0 0 25 0 1 0 973899505 314843136 57853 4294967295 134512640 135730672 3221224576 3204072272 134786977 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 76866 57854 301 301 0 76565 0
vsize: 307464
[startup+70.0007 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 122371 0 0 0 6734 265 0 0 25 0 1 0 973899505 380895232 77531 4294967295 134512640 135730672 3221224576 3207952840 135284590 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 93025 77532 301 301 0 92724 0
vsize: 371968
[startup+80.0014 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 158374 0 0 0 7663 336 0 0 25 0 1 0 973899505 493772800 94939 4294967295 134512640 135730672 3221224576 3204130408 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120550 94939 301 301 0 120249 0
vsize: 482200
[startup+90.0015 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 190155 0 0 0 8594 405 0 0 25 0 1 0 973899505 704159744 126464 4294967295 134512640 135730672 3221224576 3204154576 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171914 126468 301 301 0 171613 0
vsize: 687656
[startup+100.001 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 216891 0 0 0 9537 463 0 0 25 0 1 0 973899505 634601472 128357 4294967295 134512640 135730672 3221224576 3204067320 134722857 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154932 128358 301 301 0 154631 0
vsize: 619728
[startup+110.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 234547 0 0 0 10497 502 0 0 25 0 1 0 973899505 697409536 145777 4294967295 134512640 135730672 3221224576 3204155708 135301640 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170266 145777 301 301 0 169965 0
vsize: 681064
[startup+120.002 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 245196 0 0 0 11475 525 0 0 25 0 1 0 973899505 716267520 156141 4294967295 134512640 135730672 3221224576 3221222980 134540222 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174870 156141 301 301 0 174569 0
vsize: 699480
[startup+127.57 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 20253
Raw data (stat): 20253 (pb2sat-v2) R 20252 7266 7265 0 -1 0 245196 0 0 0 11475 525 0 0 25 0 1 0 973899505 716267520 156141 4294967295 134512640 135730672 3221224576 3221222980 134540222 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174870 156141 301 301 0 174569 0
vsize: 0

Child status: 1
Real time (s): 127.57
CPU time (s): 127.569
CPU user time (s): 122.003
CPU system time (s): 5.56515
CPU usage (%): 99.9988
Max. virtual memory (Kb): 699480
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####