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-ganges.opb
MD5SUM8a1a45ee37d518ca6067f6e63fa8146f
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 2309
Biggest coefficient in the objective function 33554432
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 884998035
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 5368709120000
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 32257203788492
Number of bits of the biggest sum of numbers45
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.61076
Number of variables46097
Total number of constraints1706
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 constraints1706
Minimum length of a constraint13
Maximum length of a constraint1432

Trace number 42315 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 05:30:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25535 boxname=wulflinc1 idbench=835 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8a1a45ee37d518ca6067f6e63fa8146f  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-ganges.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-ganges.opb
IDLAUNCH: 25535
/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:        723992 kB
Buffers:         34760 kB
Cached:         251416 kB
SwapCached:       1192 kB
Active:          80368 kB
Inactive:       208144 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        723740 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16432 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:32:21 (client local time) WITH STATUS 1 IN 106.395 SECONDS
stats: 25535 7 106.395 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): 0.93 0.98 0.92 2/55 13937
Raw data (stat): 13937 (runsolver) R 13936 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 911399941 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): 0.94 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 26298 0 0 0 937 62 0 0 25 0 1 0 911399941 78290944 15246 4294967295 134512640 135730672 3221224576 3221200652 135291070 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19114 15246 301 301 0 18813 0
vsize: 76456
[startup+20.0006 s]
Raw data (loadavg): 0.95 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 53415 0 0 0 1872 127 0 0 25 0 1 0 911399941 154984448 31114 4294967295 134512640 135730672 3221224576 3221183336 134732198 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37838 31114 301 301 0 37537 0
vsize: 151352
[startup+30.0014 s]
Raw data (loadavg): 0.96 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 91097 0 0 0 2791 208 0 0 25 0 1 0 911399941 269766656 47096 4294967295 134512640 135730672 3221224576 3221202800 134611000 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 65861 47096 301 301 0 65560 0
vsize: 263444
[startup+40.0012 s]
Raw data (loadavg): 0.96 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 104598 0 0 0 3761 239 0 0 25 0 1 0 911399941 305889280 60340 4294967295 134512640 135730672 3221224576 3221191160 134606795 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 74680 60340 301 301 0 74379 0
vsize: 298720
[startup+50.002 s]
Raw data (loadavg): 0.97 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 142289 0 0 0 4686 314 0 0 25 0 1 0 911399941 422739968 78438 4294967295 134512640 135730672 3221224576 3221205680 134788144 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 103208 78438 301 301 0 102907 0
vsize: 412832
[startup+60.0018 s]
Raw data (loadavg): 0.97 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 177331 0 0 0 5611 389 0 0 25 0 1 0 911399941 523403264 88699 4294967295 134512640 135730672 3221224576 3221199656 135285418 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 127784 88699 301 301 0 127483 0
vsize: 511136
[startup+70.0015 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 188206 0 0 0 6588 412 0 0 25 0 1 0 911399941 556957696 99362 4294967295 134512640 135730672 3221224576 3221194080 134551825 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135976 99362 301 301 0 135675 0
vsize: 543904
[startup+80.0029 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 204020 0 0 0 7552 448 0 0 25 0 1 0 911399941 566849536 114915 4294967295 134512640 135730672 3221224576 3221198188 134606763 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138391 114915 301 301 0 138090 0
vsize: 553564
[startup+90.0031 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 221204 0 0 0 8517 483 0 0 25 0 1 0 911399941 584355840 131847 4294967295 134512640 135730672 3221224576 3221199320 135284277 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142665 131847 301 301 0 142364 0
vsize: 570660
[startup+100.004 s]
Raw data (loadavg): 0.98 0.98 0.92 2/55 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 274027 0 0 0 9412 589 0 0 25 0 1 0 911399941 588775424 136314 4294967295 134512640 135730672 3221224576 3221223012 135104789 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143744 136314 301 301 0 143443 0
vsize: 574976
[startup+106.387 s]
Raw data (loadavg): 0.99 0.98 0.92 1/54 13937
Raw data (stat): 13937 (pb2sat-v2) R 13936 8378 8377 0 -1 0 274027 0 0 0 9412 589 0 0 25 0 1 0 911399941 588775424 136314 4294967295 134512640 135730672 3221224576 3221223012 135104789 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143744 136314 301 301 0 143443 0
vsize: 0

Child status: 1
Real time (s): 106.387
CPU time (s): 106.395
CPU user time (s): 100.228
CPU system time (s): 6.16706
CPU usage (%): 100.008
Max. virtual memory (Kb): 574976
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####