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-pilotnov.opb
MD5SUM66be30d4f5bb7b279b4114fb6f1ff9f2
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 1890
Biggest coefficient in the objective function 477815111680000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 19701657066014154
Number of bits of the sum of numbers in the objective function 55
Biggest number in a constraint 3141307404910592000000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 12713246235773393436672
Number of bits of the biggest sum of numbers74
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.9697
Number of variables54587
Total number of constraints1287
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 constraints1287
Minimum length of a constraint10
Maximum length of a constraint4520

Trace number 35079 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-28 12:10:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24380 boxname=wulflinc18 idbench=852 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  66be30d4f5bb7b279b4114fb6f1ff9f2  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-pilotnov.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-pilotnov.opb
IDLAUNCH: 24380
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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		: 451.177
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:        690280 kB
Buffers:         33268 kB
Cached:         277856 kB
SwapCached:        792 kB
Active:          26812 kB
Inactive:       286424 kB
HighTotal:      131008 kB
HighFree:        56980 kB
LowTotal:       903652 kB
LowFree:        633300 kB
SwapTotal:     2097892 kB
SwapFree:      2096240 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            25508 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:12:31 (client local time) WITH STATUS 1 IN 118.126 SECONDS
stats: 24380 7 118.126 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): 0.84 0.91 0.90 2/54 1700
Raw data (stat): 1700 (runsolver) R 1699 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864682064 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+10.0018 s]
Raw data (loadavg): 0.87 0.92 0.90 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 28084 0 0 0 943 56 0 0 25 0 1 0 864682064 88535040 16959 4294967295 134512640 135726644 3221224576 3220453352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21615 16960 300 300 0 21315 0
vsize: 86460
[startup+20.0022 s]
Raw data (loadavg): 0.89 0.92 0.90 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 55361 0 0 0 1887 113 0 0 25 0 1 0 864682064 173576192 33031 4294967295 134512640 135726644 3221224576 3220451712 135279114 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42377 33031 300 300 0 42077 0
vsize: 169508
[startup+30.0025 s]
Raw data (loadavg): 0.90 0.92 0.90 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 87119 0 0 0 2830 170 0 0 25 0 1 0 864682064 348536832 54887 4294967295 134512640 135726644 3221224576 3220452592 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85092 54891 300 300 0 84792 0
vsize: 340368
[startup+40.0034 s]
Raw data (loadavg): 0.92 0.92 0.90 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 108877 0 0 0 3786 214 0 0 25 0 1 0 864682064 341950464 64153 4294967295 134512640 135726644 3221224576 3220453300 134604464 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83484 64155 300 300 0 83184 0
vsize: 333936
[startup+50.004 s]
Raw data (loadavg): 0.93 0.92 0.90 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 128284 0 0 0 4748 252 0 0 25 0 1 0 864682064 371372032 83332 4294967295 134512640 135726644 3221224576 3220460892 134604415 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 90667 83332 300 300 0 90367 0
vsize: 362668
[startup+60.0052 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 165168 0 0 0 5683 318 0 0 25 0 1 0 864682064 493805568 100648 4294967295 134512640 135726644 3221224576 3220453264 134767085 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 120558 100648 300 300 0 120258 0
vsize: 482232
[startup+70.0051 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 199754 0 0 0 6609 392 0 0 25 0 1 0 864682064 594468864 110474 4294967295 134512640 135726644 3221224576 3220454892 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145134 110474 300 300 0 144834 0
vsize: 580536
[startup+80.0048 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 213326 0 0 0 7579 422 0 0 25 0 1 0 864682064 641040384 123851 4294967295 134512640 135726644 3221224576 3220457328 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156504 123851 300 300 0 156204 0
vsize: 626016
[startup+90.005 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 232122 0 0 0 8546 455 0 0 25 0 1 0 864682064 669323264 142427 4294967295 134512640 135726644 3221224576 3220455352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163409 142427 300 300 0 163109 0
vsize: 653636
[startup+100.005 s]
Raw data (loadavg): 0.97 0.93 0.91 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 251081 0 0 0 9510 491 0 0 25 0 1 0 864682064 697925632 161161 4294967295 134512640 135726644 3221224576 3220459024 134604463 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 170392 161161 300 300 0 170092 0
vsize: 681568
[startup+110.006 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 260625 0 0 0 10489 512 0 0 25 0 1 0 864682064 763363328 170592 4294967295 134512640 135726644 3221224576 3221222992 135280416 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186368 170592 300 300 0 186068 0
vsize: 745472
[startup+118.115 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 1700
Raw data (stat): 1700 (pb2sat) R 1699 24172 24171 0 -1 0 260625 0 0 0 10489 512 0 0 25 0 1 0 864682064 763363328 170592 4294967295 134512640 135726644 3221224576 3221222992 135280416 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186368 170592 300 300 0 186068 0
vsize: 0

Child status: 1
Real time (s): 118.114
CPU time (s): 118.126
CPU user time (s): 112.662
CPU system time (s): 5.46417
CPU usage (%): 100.01
Max. virtual memory (Kb): 745472
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####