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-seymour1.opb
MD5SUM6ce78c8c12f3a600932e30ddb0640345
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 64128
Optimality of the best value was proved NO
Number of terms in the objective function 7819
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 292583
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 128
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 292583
Number of bits of the biggest sum of numbers19
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.27
Number of variables7819
Total number of constraints6316
Number of constraints which are clauses651
Number of constraints which are cardinality constraints (but not clauses)451
Number of constraints which are nor clauses,nor cardinality constraints5214
Minimum length of a constraint1
Maximum length of a constraint144

Trace number 35740 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc19 THE 2005-05-28 13:59:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25053 boxname=wulflinc19 idbench=1525 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6ce78c8c12f3a600932e30ddb0640345  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-seymour1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-13-7-seymour1.opb
IDLAUNCH: 25053
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        900356 kB
Buffers:          7752 kB
Cached:         104904 kB
SwapCached:       1040 kB
Active:          22556 kB
Inactive:        92248 kB
HighTotal:      131008 kB
HighFree:        35756 kB
LowTotal:       903652 kB
LowFree:        864600 kB
SwapTotal:     2097892 kB
SwapFree:      2095980 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           4900 kB
Slab:            13676 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 14:01:38 (client local time) WITH STATUS 1 IN 110.684 SECONDS
stats: 25053 7 110.684 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): 0.82 0.92 0.90 2/54 21751
Raw data (stat): 21751 (runsolver) R 21750 10795 10794 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865344658 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+9.99963 s]
Raw data (loadavg): 0.85 0.92 0.90 2/54 21751
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 28151 0 0 0 934 65 0 0 25 0 1 0 865344658 89903104 17168 4294967295 134512640 135726644 3221224576 3218898244 134560236 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21949 17169 300 300 0 21649 0
vsize: 87796
[startup+20.0014 s]
Raw data (loadavg): 0.87 0.92 0.90 3/57 21791
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 57149 0 0 0 1872 126 0 0 25 0 1 0 865344658 176570368 35203 4294967295 134512640 135726644 3221224576 3218210984 134606432 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43108 35204 300 300 0 42808 0
vsize: 172432
[startup+30.0023 s]
Raw data (loadavg): 0.89 0.92 0.90 2/54 21804
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 98010 0 0 0 2794 205 0 0 25 0 1 0 865344658 301346816 54382 4294967295 134512640 135726644 3221224576 3218306880 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73571 54383 300 300 0 73271 0
vsize: 294284
[startup+40.003 s]
Raw data (loadavg): 0.91 0.92 0.90 2/54 21804
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 114382 0 0 0 3760 239 0 0 25 0 1 0 865344658 348823552 70522 4294967295 134512640 135726644 3221224576 3218464928 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85162 70523 300 300 0 84862 0
vsize: 340648
[startup+50.0028 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 21804
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 144118 0 0 0 4699 300 0 0 25 0 1 0 865344658 536174592 99671 4294967295 134512640 135726644 3221224576 3218672960 134771789 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 130902 99673 300 300 0 130602 0
vsize: 523608
[startup+60.0026 s]
Raw data (loadavg): 0.93 0.93 0.90 2/54 21804
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 195587 0 0 0 5594 405 0 0 25 0 1 0 865344658 597565440 108370 4294967295 134512640 135726644 3221224576 3218559728 134554588 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145890 108370 300 300 0 145590 0
vsize: 583560
[startup+70.0037 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 21804
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 207696 0 0 0 6569 431 0 0 25 0 1 0 865344658 631119872 120263 4294967295 134512640 135726644 3221224576 3219322080 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154082 120264 300 300 0 153782 0
vsize: 616328
[startup+80.0042 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 21804
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 227299 0 0 0 7526 473 0 0 25 0 1 0 865344658 657477632 139630 4294967295 134512640 135726644 3221224576 3218627680 134782652 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160517 139630 300 300 0 160217 0
vsize: 642068
[startup+90.0041 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 21806
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 243774 0 0 0 8492 508 0 0 25 0 1 0 865344658 731463680 155914 4294967295 134512640 135726644 3221224576 3218648856 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178580 155914 300 300 0 178280 0
vsize: 714320
[startup+100.004 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 21806
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 263798 0 0 0 9449 551 0 0 25 0 1 0 865344658 760254464 175706 4294967295 134512640 135726644 3221224576 3218893656 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185609 175706 300 300 0 185309 0
vsize: 742436
[startup+110.004 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 21806
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 265402 0 0 0 10430 570 0 0 25 0 1 0 865344658 411000832 99926 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100342 99926 300 300 0 100042 0
vsize: 401368
[startup+110.683 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 21806
Raw data (stat): 21751 (pb2sat) R 21750 10795 10794 0 -1 0 265402 0 0 0 10430 570 0 0 25 0 1 0 865344658 411000832 99926 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100342 99926 300 300 0 100042 0
vsize: 0

Child status: 1
Real time (s): 110.683
CPU time (s): 110.684
CPU user time (s): 104.772
CPU system time (s): 5.9121
CPU usage (%): 100.001
Max. virtual memory (Kb): 742436
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####