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-shell.opb
MD5SUM0f9e797b4b986a37159e9b1332a4b629
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 39844
Biggest coefficient in the objective function 2101312749568
Number of bits for the biggest coefficient in the objective function 41
Sum of the numbers in the objective function 249967315526150
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 2101312749568
Number of bits of the biggest number in a constraint 41
Biggest sum of numbers in a constraint 249967315526150
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.398939
Number of variables45231
Total number of constraints653
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 constraints653
Minimum length of a constraint19
Maximum length of a constraint1560

Trace number 42359 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 06:02:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25577 boxname=wulflinc3 idbench=877 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0f9e797b4b986a37159e9b1332a4b629  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-shell.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-shell.opb
IDLAUNCH: 25577
/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:        738544 kB
Buffers:         34420 kB
Cached:         239344 kB
SwapCached:        820 kB
Active:          34724 kB
Inactive:       241220 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        738292 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14488 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:04:57 (client local time) WITH STATUS 1 IN 129.608 SECONDS
stats: 25577 7 129.608 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): 0.92 0.95 0.91 2/54 17721
Raw data (stat): 17721 (runsolver) R 17720 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968441286 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+10.0012 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 2250 0 0 0 994 5 0 0 25 0 1 0 968441286 8228864 1573 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2009 1573 301 301 0 1708 0
vsize: 8036
[startup+20.0021 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 2780 0 0 0 1992 7 0 0 25 0 1 0 968441286 9580544 2094 4294967295 134512640 135730672 3221224576 3221221664 134561669 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2339 2094 301 301 0 2038 0
vsize: 9356
[startup+30.0034 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 3889 0 0 0 2990 10 0 0 25 0 1 0 968441286 13414400 2492 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3275 2492 301 301 0 2974 0
vsize: 13100
[startup+40.0043 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 22391 0 0 0 3947 53 0 0 25 0 1 0 968441286 86818816 14242 4294967295 134512640 135730672 3221224576 3220773664 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21196 14242 301 301 0 20895 0
vsize: 84784
[startup+50.0052 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 50669 0 0 0 4880 120 0 0 25 0 1 0 968441286 159014912 28482 4294967295 134512640 135730672 3221224576 3221216572 135291230 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 38822 28482 301 301 0 38521 0
vsize: 155288
[startup+60.0061 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 89770 0 0 0 5802 198 0 0 25 0 1 0 968441286 275410944 45893 4294967295 134512640 135730672 3221224576 3220734560 134546503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 67239 45893 301 301 0 66938 0
vsize: 268956
[startup+70.007 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 103774 0 0 0 6771 229 0 0 25 0 1 0 968441286 308965376 59644 4294967295 134512640 135730672 3221224576 3221202316 135291172 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 75431 59644 301 301 0 75130 0
vsize: 301724
[startup+80.0087 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 145865 0 0 0 7683 317 0 0 25 0 1 0 968441286 506454016 100550 4294967295 134512640 135730672 3221224576 3220960124 135301630 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 123646 100550 301 301 0 123345 0
vsize: 494584
[startup+90.0092 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 182145 0 0 0 8600 400 0 0 25 0 1 0 968441286 537837568 94612 4294967295 134512640 135730672 3221224576 3221184296 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 131308 94612 301 301 0 131007 0
vsize: 525232
[startup+100.01 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 195386 0 0 0 9568 431 0 0 25 0 1 0 968441286 571392000 107611 4294967295 134512640 135730672 3221224576 3221076800 134813883 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139500 107611 301 301 0 139199 0
vsize: 558000
[startup+110.011 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 211363 0 0 0 10527 473 0 0 25 0 1 0 968441286 575041536 123310 4294967295 134512640 135730672 3221224576 3220862624 134546498 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140391 123310 301 301 0 140090 0
vsize: 561564
[startup+120.011 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 227003 0 0 0 11487 513 0 0 25 0 1 0 968441286 641593344 138740 4294967295 134512640 135730672 3221224576 3220673200 135284048 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156639 138740 301 301 0 156338 0
vsize: 626556
[startup+129.614 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 17721
Raw data (stat): 17721 (pb2sat-v2) R 17720 20224 20223 0 -1 0 227003 0 0 0 11487 513 0 0 25 0 1 0 968441286 641593344 138740 4294967295 134512640 135730672 3221224576 3220673200 135284048 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156639 138740 301 301 0 156338 0
vsize: 0

Child status: 1
Real time (s): 129.613
CPU time (s): 129.608
CPU user time (s): 123.838
CPU system time (s): 5.77012
CPU usage (%): 99.9961
Max. virtual memory (Kb): 626556
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####