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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-stocfor2.opb
MD5SUM0dc0747c5ead22f2090cd90d5f7e4e43
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 21180
Biggest coefficient in the objective function 1811939328000000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 384124076253097125
Number of bits of the sum of numbers in the objective function 59
Biggest number in a constraint 1811939328000000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 384124076253097125
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.352946
Number of variables40620
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 constraint20
Maximum length of a constraint300

Trace number 35504 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc29 THE 2005-05-28 13:19:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24801 boxname=wulflinc29 idbench=1273 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0dc0747c5ead22f2090cd90d5f7e4e43  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-stocfor2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-stocfor2.opb
IDLAUNCH: 24801
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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		: 451.020
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:        729524 kB
Buffers:         34816 kB
Cached:         244780 kB
SwapCached:        632 kB
Active:          20688 kB
Inactive:       260912 kB
HighTotal:      131008 kB
HighFree:        18816 kB
LowTotal:       903652 kB
LowFree:        710708 kB
SwapTotal:     2097892 kB
SwapFree:      2096368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            17736 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:21:17 (client local time) WITH STATUS 1 IN 117.373 SECONDS
stats: 24801 7 117.373 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 0.92 0.90 2/54 29027
Raw data (stat): 29027 (runsolver) R 29026 20001 20000 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865104739 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+10.0009 s]
Raw data (loadavg): 0.85 0.92 0.90 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 9953 0 0 0 976 23 0 0 25 0 1 0 865104739 40599552 7889 4294967295 134512640 135726644 3221224576 3212732544 134771810 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 9912 7889 300 300 0 9612 0
vsize: 39648
[startup+20.0095 s]
Raw data (loadavg): 0.88 0.93 0.90 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 41724 0 0 0 1913 87 0 0 25 0 1 0 865104739 133394432 25664 4294967295 134512640 135726644 3221224576 3212733372 134784104 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 32567 25664 300 300 0 32267 0
vsize: 130268
[startup+30.0094 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 68654 0 0 0 2861 139 0 0 25 0 1 0 865104739 272580608 46102 4294967295 134512640 135726644 3221224576 3212735280 135287555 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 66548 46102 300 300 0 66248 0
vsize: 266192
[startup+40.0102 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 102813 0 0 0 3792 208 0 0 25 0 1 0 865104739 305979392 58163 4294967295 134512640 135726644 3221224576 3212735352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74702 58163 300 300 0 74402 0
vsize: 298808
[startup+50.0114 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 122392 0 0 0 4753 247 0 0 25 0 1 0 865104739 368611328 77508 4294967295 134512640 135726644 3221224576 3212733004 134634289 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89993 77508 300 300 0 89693 0
vsize: 359972
[startup+60.0118 s]
Raw data (loadavg): 0.93 0.93 0.90 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 162190 0 0 0 5681 319 0 0 25 0 1 0 865104739 497893376 97697 4294967295 134512640 135726644 3221224576 3212737380 134608951 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 121556 97697 300 300 0 121256 0
vsize: 486224
[startup+70.0116 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 198098 0 0 0 6608 393 0 0 25 0 1 0 865104739 598556672 108818 4294967295 134512640 135726644 3221224576 3212734464 134739661 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146132 108818 300 300 0 145832 0
vsize: 584528
[startup+80.0118 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 212845 0 0 0 7579 422 0 0 25 0 1 0 865104739 645357568 123350 4294967295 134512640 135726644 3221224576 3212735708 134604400 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157558 123350 300 300 0 157258 0
vsize: 630232
[startup+90.0125 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 233255 0 0 0 8541 460 0 0 25 0 1 0 865104739 675770368 143517 4294967295 134512640 135726644 3221224576 3212734892 134604433 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164983 143517 300 300 0 164683 0
vsize: 659932
[startup+100.012 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 253468 0 0 0 9500 500 0 0 25 0 1 0 865104739 706494464 163490 4294967295 134512640 135726644 3221224576 3212737292 134604433 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 172484 163490 300 300 0 172184 0
vsize: 689936
[startup+110.013 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 259606 0 0 0 10485 516 0 0 25 0 1 0 865104739 766267392 169473 4294967295 134512640 135726644 3221224576 3221222896 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187077 169473 300 300 0 186777 0
vsize: 748308
[startup+117.369 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 29027
Raw data (stat): 29027 (pb2sat) R 29026 20001 20000 0 -1 0 259606 0 0 0 10485 516 0 0 25 0 1 0 865104739 766267392 169473 4294967295 134512640 135726644 3221224576 3221222896 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 187077 169473 300 300 0 186777 0
vsize: 0

Child status: 1
Real time (s): 117.368
CPU time (s): 117.373
CPU user time (s): 111.859
CPU system time (s): 5.51416
CPU usage (%): 100.004
Max. virtual memory (Kb): 748308
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####