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-scfxm2.opb
MD5SUM62c9b9620bb6a6d25dc0851d660e9763
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 1380
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 281320357626
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 53687091200000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 326830904793855
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.951855
Number of variables27420
Total number of constraints660
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 constraints660
Minimum length of a constraint30
Maximum length of a constraint1710

Trace number 42344 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 05:53:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25564 boxname=wulflinc3 idbench=864 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  62c9b9620bb6a6d25dc0851d660e9763  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-scfxm2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-scfxm2.opb
IDLAUNCH: 25564
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        749216 kB
Buffers:         34340 kB
Cached:         228748 kB
SwapCached:        820 kB
Active:          32540 kB
Inactive:       232772 kB
HighTotal:      131008 kB
HighFree:          308 kB
LowTotal:       903652 kB
LowFree:        748908 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14440 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:55:07 (client local time) WITH STATUS 1 IN 113.272 SECONDS
stats: 25564 7 113.272 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): 0.93 0.95 0.91 2/54 17201
Raw data (stat): 17201 (runsolver) R 17200 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968383947 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+10.0009 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 27941 0 0 0 944 54 0 0 25 0 1 0 968383947 86810624 17040 4294967295 134512640 135730672 3221224576 3221018028 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21194 17040 301 301 0 20893 0
vsize: 84776
[startup+20.0007 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 55202 0 0 0 1891 108 0 0 25 0 1 0 968383947 171294720 33099 4294967295 134512640 135730672 3221224576 3221025560 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41820 33100 301 301 0 41519 0
vsize: 167280
[startup+30.0019 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 95085 0 0 0 2814 185 0 0 25 0 1 0 968383947 296570880 50805 4294967295 134512640 135730672 3221224576 3221026040 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72405 50805 301 301 0 72104 0
vsize: 289620
[startup+40.0014 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 108653 0 0 0 3788 211 0 0 25 0 1 0 968383947 338370560 64167 4294967295 134512640 135730672 3221224576 3221030216 135285248 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82610 64167 301 301 0 82309 0
vsize: 330440
[startup+50.0013 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 128014 0 0 0 4754 245 0 0 25 0 1 0 968383947 366366720 83302 4294967295 134512640 135730672 3221224576 3221034732 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89445 83303 301 301 0 89144 0
vsize: 357780
[startup+60.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 189333 0 0 0 5639 361 0 0 25 0 1 0 968383947 593903616 100502 4294967295 134512640 135730672 3221224576 3221035764 135344689 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144996 100502 301 301 0 144695 0
vsize: 579984
[startup+70.0029 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 199695 0 0 0 6618 382 0 0 25 0 1 0 968383947 627458048 110679 4294967295 134512640 135730672 3221224576 3221040800 134770867 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153188 110679 301 301 0 152887 0
vsize: 612752
[startup+80.0038 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 214396 0 0 0 7592 408 0 0 25 0 1 0 968383947 636784640 125156 4294967295 134512640 135730672 3221224576 3221040888 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155465 125157 301 301 0 155164 0
vsize: 621860
[startup+90.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 233346 0 0 0 8556 444 0 0 25 0 1 0 968383947 663965696 143887 4294967295 134512640 135730672 3221224576 3221041896 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162101 143887 301 301 0 161800 0
vsize: 648404
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 248580 0 0 0 9529 471 0 0 25 0 1 0 968383947 736194560 158944 4294967295 134512640 135730672 3221224576 3221035660 134608004 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179735 158944 301 301 0 179434 0
vsize: 718940
[startup+110.004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 263307 0 0 0 10505 496 0 0 25 0 1 0 968383947 758329344 173500 4294967295 134512640 135730672 3221224576 3221222800 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185139 173500 301 301 0 184838 0
vsize: 740556
[startup+113.263 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 17201
Raw data (stat): 17201 (pb2sat-v2) R 17200 20224 20223 0 -1 0 263307 0 0 0 10505 496 0 0 25 0 1 0 968383947 758329344 173500 4294967295 134512640 135730672 3221224576 3221222800 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185139 173500 301 301 0 184838 0
vsize: 0

Child status: 1
Real time (s): 113.263
CPU time (s): 113.272
CPU user time (s): 107.955
CPU system time (s): 5.31719
CPU usage (%): 100.007
Max. virtual memory (Kb): 740556
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####