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 42755 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 14:23:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25973 boxname=wulflinc1 idbench=1273 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0dc0747c5ead22f2090cd90d5f7e4e43  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-stocfor2.opb
IDLAUNCH: 25973
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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	: 2
cpu MHz		: 451.053
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:        707296 kB
Buffers:         19328 kB
Cached:         283408 kB
SwapCached:       1156 kB
Active:          30040 kB
Inactive:       274992 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        707044 kB
SwapTotal:     2097136 kB
SwapFree:      2094896 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16640 kB
Committed_AS:    92712 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:25:50 (client local time) WITH STATUS 1 IN 118.511 SECONDS
stats: 25973 7 118.511 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): 0.91 0.95 0.90 2/55 21334
Raw data (stat): 21334 (runsolver) R 21333 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914600109 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+10.0008 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 4794 0 0 0 989 9 0 0 25 0 1 0 914600109 15560704 3177 4294967295 134512640 135730672 3221224576 3221209200 134786142 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3799 3177 301 301 0 3498 0
vsize: 15196
[startup+20.0016 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 33810 0 0 0 1922 76 0 0 25 0 1 0 914600109 131985408 22470 4294967295 134512640 135730672 3221224576 3221101016 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 32223 22470 301 301 0 31922 0
vsize: 128892
[startup+30.0012 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 60401 0 0 0 2868 130 0 0 25 0 1 0 914600109 179724288 37934 4294967295 134512640 135730672 3221224576 3221092720 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43878 37935 301 301 0 43577 0
vsize: 175512
[startup+40.002 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 98962 0 0 0 3793 205 0 0 25 0 1 0 914600109 295514112 54300 4294967295 134512640 135730672 3221224576 3221097208 135284290 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72147 54300 301 301 0 71846 0
vsize: 288588
[startup+50.0018 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 116915 0 0 0 4761 237 0 0 25 0 1 0 914600109 350560256 72024 4294967295 134512640 135730672 3221224576 3221107484 135301642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85586 72024 301 301 0 85285 0
vsize: 342344
[startup+60.0016 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 159461 0 0 0 5684 314 0 0 25 0 1 0 914600109 486760448 95988 4294967295 134512640 135730672 3221224576 3221099812 135281249 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 118838 95988 301 301 0 118537 0
vsize: 475352
[startup+70.0014 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 195545 0 0 0 6609 389 0 0 25 0 1 0 914600109 591618048 106281 4294967295 134512640 135730672 3221224576 3221090912 134770715 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144438 106281 301 301 0 144137 0
vsize: 577752
[startup+80.0011 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 207574 0 0 0 7584 415 0 0 25 0 1 0 914600109 626794496 118100 4294967295 134512640 135730672 3221224576 3221108080 134546351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153026 118101 301 301 0 152725 0
vsize: 612104
[startup+90.0009 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 227572 0 0 0 8548 451 0 0 25 0 1 0 914600109 655450112 137864 4294967295 134512640 135730672 3221224576 3221089616 134607989 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160022 137864 301 301 0 159721 0
vsize: 640088
[startup+100.001 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 246633 0 0 0 9510 489 0 0 25 0 1 0 914600109 733220864 156701 4294967295 134512640 135730672 3221224576 3221100528 134783994 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179009 156701 301 301 0 178708 0
vsize: 716036
[startup+110.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 261138 0 0 0 10478 521 0 0 25 0 1 0 914600109 755412992 170956 4294967295 134512640 135730672 3221224576 3221222716 135284065 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184427 170956 301 301 0 184126 0
vsize: 737708
[startup+118.517 s]
Raw data (loadavg): 0.99 0.96 0.91 1/54 21334
Raw data (stat): 21334 (pb2sat-v2) R 21333 8378 8377 0 -1 0 261138 0 0 0 10478 521 0 0 25 0 1 0 914600109 755412992 170956 4294967295 134512640 135730672 3221224576 3221222716 135284065 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184427 170956 301 301 0 184126 0
vsize: 0

Child status: 1
Real time (s): 118.516
CPU time (s): 118.511
CPU user time (s): 112.942
CPU system time (s): 5.56915
CPU usage (%): 99.9955
Max. virtual memory (Kb): 737708
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####