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-sctap2.opb
MD5SUMc5a9e8be191d07f712a0a357db2fa392
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 42300
Biggest coefficient in the objective function 42949672960
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 26381836591110
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 42949672960
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 26381836591110
Number of bits of the biggest sum of numbers45
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1304.69
Number of variables56400
Total number of constraints1090
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 constraints1090
Minimum length of a constraint90
Maximum length of a constraint720

Trace number 35096 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-28 12:12:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24400 boxname=wulflinc31 idbench=872 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c5a9e8be191d07f712a0a357db2fa392  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-sctap2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-sctap2.opb
IDLAUNCH: 24400
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        840468 kB
Buffers:         34736 kB
Cached:         136116 kB
SwapCached:       1052 kB
Active:          85716 kB
Inactive:        87336 kB
HighTotal:      131008 kB
HighFree:         2016 kB
LowTotal:       903652 kB
LowFree:        838452 kB
SwapTotal:     2097892 kB
SwapFree:      2095928 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            15448 kB
Committed_AS:    63812 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:15:19 (client local time) WITH STATUS 1 IN 146.38 SECONDS
stats: 24400 7 146.38 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): 0.89 0.98 0.91 1/55 19583
Raw data (stat): 19583 (runsolver) D 19582 29618 29617 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 864690447 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0012 s]
Raw data (loadavg): 0.91 0.98 0.91 2/55 19583
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 2256 0 0 0 993 5 0 0 25 0 1 0 864690447 8224768 1580 4294967295 134512640 135726644 3221224576 3221221664 134556160 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2008 1580 300 300 0 1708 0
vsize: 8032
[startup+20.0019 s]
Raw data (loadavg): 0.92 0.98 0.91 2/55 19583
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 2754 0 0 0 1991 7 0 0 25 0 1 0 864690447 9441280 2070 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2305 2070 300 300 0 2005 0
vsize: 9220
[startup+30.0015 s]
Raw data (loadavg): 0.93 0.98 0.91 2/55 19583
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 3889 0 0 0 2988 11 0 0 25 0 1 0 864690447 13410304 2493 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3274 2493 300 300 0 2974 0
vsize: 13096
[startup+40.0019 s]
Raw data (loadavg): 0.94 0.98 0.91 2/55 19583
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 12819 0 0 0 3967 32 0 0 25 0 1 0 864690447 45453312 9884 4294967295 134512640 135726644 3221224576 3204828552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 11097 9884 300 300 0 10797 0
vsize: 44388
[startup+50.0028 s]
Raw data (loadavg): 0.95 0.98 0.91 2/55 19585
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 44524 0 0 0 4897 101 0 0 25 0 1 0 864690447 144838656 28452 4294967295 134512640 135726644 3221224576 3204500112 134554794 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 35361 28452 300 300 0 35061 0
vsize: 141444
[startup+60.0253 s]
Raw data (loadavg): 0.96 0.98 0.91 2/55 19585
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 71202 0 0 0 5839 162 0 0 25 0 1 0 864690447 282959872 48664 4294967295 134512640 135726644 3221224576 3205645960 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 69082 48666 300 300 0 68782 0
vsize: 276328
[startup+70.0268 s]
Raw data (loadavg): 0.96 0.98 0.91 2/55 19585
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 105519 0 0 0 6770 231 0 0 25 0 1 0 864690447 352481280 60891 4294967295 134512640 135726644 3221224576 3205957600 134780435 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86055 60891 300 300 0 85755 0
vsize: 344220
[startup+80.0275 s]
Raw data (loadavg): 0.97 0.98 0.91 2/55 19585
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 125713 0 0 0 7724 277 0 0 25 0 1 0 864690447 379785216 80847 4294967295 134512640 135726644 3221224576 3206235184 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 92721 80848 300 300 0 92421 0
vsize: 370884
[startup+90.0271 s]
Raw data (loadavg): 0.97 0.98 0.91 2/55 19585
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 167585 0 0 0 8642 360 0 0 25 0 1 0 864690447 516243456 103127 4294967295 134512640 135726644 3221224576 3205417692 134604415 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 126036 103127 300 300 0 125736 0
vsize: 504144
[startup+100.027 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 19585
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 203757 0 0 0 9567 434 0 0 25 0 1 0 864690447 616906752 114518 4294967295 134512640 135726644 3221224576 3204452624 134739169 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 150612 114519 300 300 0 150312 0
vsize: 602448
[startup+110.028 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 19587
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 217164 0 0 0 10538 464 0 0 25 0 1 0 864690447 657084416 127719 4294967295 134512640 135726644 3221224576 3205434528 134554681 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160421 127719 300 300 0 160121 0
vsize: 641684
[startup+120.029 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 19587
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 237261 0 0 0 11493 509 0 0 25 0 1 0 864690447 685604864 147585 4294967295 134512640 135726644 3221224576 3205303664 134767237 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167384 147585 300 300 0 167084 0
vsize: 669536
[startup+130.029 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 19587
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 253815 0 0 0 12454 548 0 0 25 0 1 0 864690447 759861248 163948 4294967295 134512640 135726644 3221224576 3206386064 134767040 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185513 163949 300 300 0 185213 0
vsize: 742052
[startup+140.029 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 19587
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 268340 0 0 0 13424 579 0 0 25 0 1 0 864690447 781725696 178307 4294967295 134512640 135726644 3221224576 3215811320 135138265 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 190851 178307 300 300 0 190551 0
vsize: 763404
[startup+146.377 s]
Raw data (loadavg): 0.99 0.98 0.91 1/54 19587
Raw data (stat): 19583 (pb2sat) R 19582 29618 29617 0 -1 0 268340 0 0 0 13424 579 0 0 25 0 1 0 864690447 781725696 178307 4294967295 134512640 135726644 3221224576 3215811320 135138265 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 190851 178307 300 300 0 190551 0
vsize: 0

Child status: 1
Real time (s): 146.376
CPU time (s): 146.38
CPU user time (s): 140.22
CPU system time (s): 6.16006
CPU usage (%): 100.002
Max. virtual memory (Kb): 763404
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####