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/milp/normalized-mps-v2-20-10-swath2.opb
MD5SUM4900144ca649bd1eba4c20785ac78705
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824000000
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 4820003452178237
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.84572
Number of variables52335
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 constraint49934

Trace number 35369 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc15 THE 2005-05-28 13:00:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24670 boxname=wulflinc15 idbench=1142 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4900144ca649bd1eba4c20785ac78705  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-swath2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-swath2.opb
IDLAUNCH: 24670
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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:        770776 kB
Buffers:         33472 kB
Cached:         206508 kB
SwapCached:        604 kB
Active:          66920 kB
Inactive:       175864 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        770524 kB
SwapTotal:     2097136 kB
SwapFree:      2095616 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6040 kB
Slab:            15328 kB
Committed_AS:    65104 kB
PageTables:        352 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:02:58 (client local time) WITH STATUS 1 IN 164.602 SECONDS
stats: 24670 7 164.602 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): 1.07 0.98 0.91 1/54 3394
Raw data (stat): 3394 (runsolver) R 3393 23514 23513 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806766959 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0002 s]
Raw data (loadavg): 1.06 0.98 0.91 2/54 3394
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 9553 0 0 0 977 22 0 0 25 0 1 0 806766959 29286400 5647 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 7150 5647 300 300 0 6850 0
vsize: 28600
[startup+20.0013 s]
Raw data (loadavg): 1.05 0.98 0.91 2/54 3394
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 9722 0 0 0 1976 22 0 0 25 0 1 0 806766959 29818880 5751 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 7280 5751 300 300 0 6980 0
vsize: 29120
[startup+30.0014 s]
Raw data (loadavg): 1.04 0.98 0.91 2/54 3394
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 10007 0 0 0 2975 24 0 0 25 0 1 0 806766959 30883840 5907 4294967295 134512640 135726644 3221224576 3221221664 134556181 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 7540 5907 300 300 0 7240 0
vsize: 30160
[startup+40.0025 s]
Raw data (loadavg): 1.03 0.98 0.91 2/54 3394
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 10030 0 0 0 3975 24 0 0 25 0 1 0 806766959 30883840 5930 4294967295 134512640 135726644 3221224576 3221221664 134556192 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 7540 5930 300 300 0 7240 0
vsize: 30160
[startup+50.0034 s]
Raw data (loadavg): 1.03 0.98 0.91 2/54 3394
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 10049 0 0 0 4975 24 0 0 25 0 1 0 806766959 30883840 5949 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 7540 5949 300 300 0 7240 0
vsize: 30160
[startup+60.0032 s]
Raw data (loadavg): 1.02 0.98 0.91 2/54 3394
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 10065 0 0 0 5975 24 0 0 25 0 1 0 806766959 30883840 5965 4294967295 134512640 135726644 3221224576 3221221664 134556195 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 7540 5965 300 300 0 7240 0
vsize: 30160
[startup+70.004 s]
Raw data (loadavg): 1.02 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 32073 0 0 0 6923 77 0 0 25 0 1 0 806766959 102346752 20923 4294967295 134512640 135726644 3221224576 3216236124 135287438 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 24987 20925 300 300 0 24687 0
vsize: 99948
[startup+80.0052 s]
Raw data (loadavg): 1.02 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 61234 0 0 0 7859 141 0 0 25 0 1 0 806766959 184754176 39080 4294967295 134512640 135726644 3221224576 3201979896 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 45106 39081 300 300 0 44806 0
vsize: 180424
[startup+90.0054 s]
Raw data (loadavg): 1.01 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 85926 0 0 0 8811 189 0 0 25 0 1 0 806766959 260493312 53842 4294967295 134512640 135726644 3221224576 3202699728 134782222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 63597 53843 300 300 0 63297 0
vsize: 254388
[startup+100.005 s]
Raw data (loadavg): 1.01 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 115310 0 0 0 9745 255 0 0 25 0 1 0 806766959 372359168 70712 4294967295 134512640 135726644 3221224576 3201363008 134767076 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 90908 70713 300 300 0 90608 0
vsize: 363632
[startup+110.108 s]
Raw data (loadavg): 1.01 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 153077 0 0 0 10687 324 0 0 25 0 1 0 806766959 494485504 89895 4294967295 134512640 135726644 3221224576 3201383008 134767123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120724 89895 300 300 0 120424 0
vsize: 482896
[startup+120.109 s]
Raw data (loadavg): 1.01 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 165469 0 0 0 11662 348 0 0 25 0 1 0 806766959 494485504 102019 4294967295 134512640 135726644 3221224576 3201712224 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120724 102019 300 300 0 120424 0
vsize: 482896
[startup+130.109 s]
Raw data (loadavg): 1.01 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 206471 0 0 0 12572 439 0 0 25 0 1 0 806766959 620695552 118223 4294967295 134512640 135726644 3221224576 3202287036 134604415 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 151537 118223 300 300 0 151237 0
vsize: 606148
[startup+140.11 s]
Raw data (loadavg): 1.00 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 224089 0 0 0 13532 479 0 0 25 0 1 0 806766959 685203456 135622 4294967295 134512640 135726644 3221224576 3202623096 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167286 135622 300 300 0 166986 0
vsize: 669144
[startup+150.111 s]
Raw data (loadavg): 1.00 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 243620 0 0 0 14491 520 0 0 25 0 1 0 806766959 716156928 154892 4294967295 134512640 135726644 3221224576 3201802808 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174843 154892 300 300 0 174543 0
vsize: 699372
[startup+160.111 s]
Raw data (loadavg): 1.00 0.98 0.91 2/54 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 245399 0 0 0 15486 525 0 0 25 0 1 0 806766959 718991360 156452 4294967295 134512640 135726644 3221224576 3221222828 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 175535 156452 300 300 0 175235 0
vsize: 702140
[startup+164.606 s]
Raw data (loadavg): 1.00 0.98 0.91 1/53 3396
Raw data (stat): 3394 (pb2sat) R 3393 23514 23513 0 -1 0 245399 0 0 0 15486 525 0 0 25 0 1 0 806766959 718991360 156452 4294967295 134512640 135726644 3221224576 3221222828 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 175535 156452 300 300 0 175235 0
vsize: 0

Child status: 1
Real time (s): 164.606
CPU time (s): 164.602
CPU user time (s): 159.033
CPU system time (s): 5.56915
CPU usage (%): 99.9975
Max. virtual memory (Kb): 702140
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####