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-stocfor2.opb
MD5SUM8756a41134c52dcbfa591c90bdd1a8a3
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 31770
Biggest coefficient in the objective function 1855425871872000000
Number of bits for the biggest coefficient in the objective function 61
Sum of the numbers in the objective function 393343428838367821824
Number of bits of the sum of numbers in the objective function 69
Biggest number in a constraint 1855425871872000000
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 393343428838367821824
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.532918
Number of variables60930
Total number of constraints2157
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 constraints2157
Minimum length of a constraint30
Maximum length of a constraint450

Trace number 42371 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 06:11:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25589 boxname=wulflinc3 idbench=889 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8756a41134c52dcbfa591c90bdd1a8a3  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-stocfor2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-stocfor2.opb
IDLAUNCH: 25589
/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:        718768 kB
Buffers:         34468 kB
Cached:         258948 kB
SwapCached:        820 kB
Active:          39052 kB
Inactive:       256540 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        718516 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14600 kB
Committed_AS:    71896 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:13:11 (client local time) WITH STATUS 1 IN 130.475 SECONDS
stats: 25589 7 130.475 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): 0.83 0.93 0.90 1/54 18002
Raw data (stat): 18002 (runsolver) R 18001 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968490585 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0003 s]
Raw data (loadavg): 0.86 0.93 0.90 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 2235 0 0 0 994 4 0 0 25 0 1 0 968490585 8093696 1558 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1976 1558 301 301 0 1675 0
vsize: 7904
[startup+20.0013 s]
Raw data (loadavg): 0.88 0.94 0.90 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 4442 0 0 0 1989 9 0 0 25 0 1 0 968490585 15216640 3024 4294967295 134512640 135730672 3221224576 3221200332 135104780 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 3715 3024 301 301 0 3414 0
vsize: 14860
[startup+30.0011 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 29188 0 0 0 2934 63 0 0 25 0 1 0 968490585 90460160 18022 4294967295 134512640 135730672 3221224576 3221030112 134770830 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22085 18022 301 301 0 21784 0
vsize: 88340
[startup+40.0019 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 57900 0 0 0 3879 118 0 0 25 0 1 0 968490585 176553984 35515 4294967295 134512640 135730672 3221224576 3221035232 134770873 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43104 35516 301 301 0 42803 0
vsize: 172416
[startup+50.0028 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 96683 0 0 0 4800 197 0 0 25 0 1 0 968490585 294100992 52106 4294967295 134512640 135730672 3221224576 3221017016 135301581 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71802 52106 301 301 0 71501 0
vsize: 287208
[startup+60.0027 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 113746 0 0 0 5766 231 0 0 25 0 1 0 968490585 346583040 68945 4294967295 134512640 135730672 3221224576 3221034304 134770715 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84615 68945 301 301 0 84314 0
vsize: 338460
[startup+70.0026 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 158173 0 0 0 6683 315 0 0 25 0 1 0 968490585 556662784 112179 4294967295 134512640 135730672 3221224576 3221013784 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135904 112182 301 301 0 135603 0
vsize: 543616
[startup+80.0025 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 191448 0 0 0 7609 388 0 0 25 0 1 0 968490585 582090752 102281 4294967295 134512640 135730672 3221224576 3221028828 134606866 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142112 102282 301 301 0 141811 0
vsize: 568448
[startup+90.0024 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 203735 0 0 0 8582 415 0 0 25 0 1 0 968490585 620781568 114366 4294967295 134512640 135730672 3221224576 3221035680 135282758 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151591 114367 301 301 0 151290 0
vsize: 606232
[startup+100.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 223089 0 0 0 9546 452 0 0 25 0 1 0 968490585 649031680 133491 4294967295 134512640 135730672 3221224576 3221029200 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158455 133492 301 301 0 158154 0
vsize: 633820
[startup+110.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 242842 0 0 0 10508 490 0 0 25 0 1 0 968490585 677687296 153011 4294967295 134512640 135730672 3221224576 3221023168 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165451 153012 301 301 0 165150 0
vsize: 661804
[startup+120.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 258603 0 0 0 11481 517 0 0 25 0 1 0 968490585 751730688 168587 4294967295 134512640 135730672 3221224576 3221021740 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183528 168588 301 301 0 183227 0
vsize: 734112
[startup+130.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 260124 0 0 0 12463 535 0 0 25 0 1 0 968490585 402083840 97618 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98165 97618 301 301 0 97864 0
vsize: 392660
[startup+130.496 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 18002
Raw data (stat): 18002 (pb2sat-v2) R 18001 20224 20223 0 -1 0 260124 0 0 0 12463 535 0 0 25 0 1 0 968490585 402083840 97618 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98165 97618 301 301 0 97864 0
vsize: 0

Child status: 1
Real time (s): 130.495
CPU time (s): 130.475
CPU user time (s): 124.911
CPU system time (s): 5.56415
CPU usage (%): 99.9846
Max. virtual memory (Kb): 734112
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####