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-pilot.opb
MD5SUMd9327b817828dc5afade576c2194d741
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 840
Biggest coefficient in the objective function 3784939929600
Number of bits for the biggest coefficient in the objective function 42
Sum of the numbers in the objective function 93738734889723
Number of bits of the sum of numbers in the objective function 47
Biggest number in a constraint 13851269529600000
Number of bits of the biggest number in a constraint 54
Biggest sum of numbers in a constraint 368128606591816686
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 benchmark5.13622
Number of variables86785
Total number of constraints2515
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 constraints2515
Minimum length of a constraint10
Maximum length of a constraint7620

Trace number 35080 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-28 12:10:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24382 boxname=wulflinc31 idbench=854 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d9327b817828dc5afade576c2194d741  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-pilot.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-pilot.opb
IDLAUNCH: 24382
/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:        830844 kB
Buffers:         34700 kB
Cached:         145808 kB
SwapCached:       1052 kB
Active:         100724 kB
Inactive:        81956 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        830564 kB
SwapTotal:     2097892 kB
SwapFree:      2095928 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            15520 kB
Committed_AS:    63812 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:12:41 (client local time) WITH STATUS 1 IN 110.551 SECONDS
stats: 24382 7 110.551 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): 1.11 1.00 0.92 2/55 19486
Raw data (stat): 19486 (runsolver) R 19485 29618 29617 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864678192 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+10.0004 s]
Raw data (loadavg): 1.10 1.00 0.92 2/55 19486
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 28848 0 0 0 940 59 0 0 25 0 1 0 864678192 89206784 17713 4294967295 134512640 135726644 3221224576 3220878640 134558503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21779 17713 300 300 0 21479 0
vsize: 87116
[startup+20.0034 s]
Raw data (loadavg): 1.08 1.00 0.92 2/55 19486
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 56875 0 0 0 1883 116 0 0 25 0 1 0 864678192 175181824 34530 4294967295 134512640 135726644 3221224576 3220892624 134604379 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42769 34530 300 300 0 42469 0
vsize: 171076
[startup+30.0043 s]
Raw data (loadavg): 1.07 1.00 0.92 2/55 19486
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 96366 0 0 0 2805 194 0 0 25 0 1 0 864678192 297537536 51833 4294967295 134512640 135726644 3221224576 3220881316 134554779 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72641 51833 300 300 0 72341 0
vsize: 290564
[startup+40.0072 s]
Raw data (loadavg): 1.06 1.00 0.92 2/55 19486
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 111767 0 0 0 3776 223 0 0 25 0 1 0 864678192 344743936 67018 4294967295 134512640 135726644 3221224576 3220901328 134554698 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84166 67018 300 300 0 83866 0
vsize: 336664
[startup+50.0082 s]
Raw data (loadavg): 1.05 1.00 0.92 2/55 19488
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 135353 0 0 0 4732 268 0 0 25 0 1 0 864678192 523005952 90244 4294967295 134512640 135726644 3221224576 3220878476 135287443 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 127687 90244 300 300 0 127387 0
vsize: 510748
[startup+60.0081 s]
Raw data (loadavg): 1.04 1.00 0.92 2/55 19488
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 191128 0 0 0 5624 375 0 0 25 0 1 0 864678192 594944000 102035 4294967295 134512640 135726644 3221224576 3220877756 134603642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145250 102035 300 300 0 144950 0
vsize: 581000
[startup+70.009 s]
Raw data (loadavg): 1.11 1.01 0.93 2/55 19488
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 202094 0 0 0 6603 396 0 0 25 0 1 0 864678192 628498432 112803 4294967295 134512640 135726644 3221224576 3220888528 134554559 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153442 112803 300 300 0 153142 0
vsize: 613768
[startup+80.01 s]
Raw data (loadavg): 1.10 1.01 0.93 2/55 19488
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 218834 0 0 0 7572 428 0 0 25 0 1 0 864678192 645529600 129320 4294967295 134512640 135726644 3221224576 3220883744 134772630 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157600 129320 300 300 0 157300 0
vsize: 630400
[startup+90.0109 s]
Raw data (loadavg): 1.08 1.01 0.93 2/55 19488
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 238578 0 0 0 8538 462 0 0 25 0 1 0 864678192 674488320 148836 4294967295 134512640 135726644 3221224576 3220885664 134766827 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164670 148836 300 300 0 164370 0
vsize: 658680
[startup+100.012 s]
Raw data (loadavg): 1.07 1.01 0.93 2/55 19488
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 253887 0 0 0 9507 494 0 0 25 0 1 0 864678192 746582016 163969 4294967295 134512640 135726644 3221224576 3220886536 135281304 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182271 163969 300 300 0 181971 0
vsize: 729084
[startup+110.013 s]
Raw data (loadavg): 1.06 1.01 0.93 2/55 19490
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 263625 0 0 0 10474 526 0 0 25 0 1 0 864678192 401264640 97503 4294967295 134512640 135726644 3221224576 3221222928 135280416 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97965 97503 300 300 0 97665 0
vsize: 391860
[startup+110.585 s]
Raw data (loadavg): 1.06 1.01 0.93 1/54 19490
Raw data (stat): 19486 (pb2sat) R 19485 29618 29617 0 -1 0 263625 0 0 0 10474 526 0 0 25 0 1 0 864678192 401264640 97503 4294967295 134512640 135726644 3221224576 3221222928 135280416 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97965 97503 300 300 0 97665 0
vsize: 0

Child status: 1
Real time (s): 110.584
CPU time (s): 110.551
CPU user time (s): 105.075
CPU system time (s): 5.47617
CPU usage (%): 99.97
Max. virtual memory (Kb): 729084
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####