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-scrs8.opb
MD5SUM5dc586d2135331b914090f6587c7f4ee
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 24750
Biggest coefficient in the objective function 284830543390965760000
Number of bits for the biggest coefficient in the objective function 68
Sum of the numbers in the objective function 7193462013935082274816
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 284830543390965760000
Number of bits of the biggest number in a constraint 68
Biggest sum of numbers in a constraint 7193462013935082274816
Number of bits of the biggest sum of numbers73
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.300953
Number of variables35070
Total number of constraints490
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 constraints490
Minimum length of a constraint30
Maximum length of a constraint1110

Trace number 42348 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 05:55:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25567 boxname=wulflinc4 idbench=867 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5dc586d2135331b914090f6587c7f4ee  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-scrs8.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-scrs8.opb
IDLAUNCH: 25567
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        726204 kB
Buffers:         34276 kB
Cached:         251604 kB
SwapCached:        944 kB
Active:          28572 kB
Inactive:       259484 kB
HighTotal:      131008 kB
HighFree:        12432 kB
LowTotal:       903652 kB
LowFree:        713772 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14676 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:57:29 (client local time) WITH STATUS 1 IN 118.166 SECONDS
stats: 25567 7 118.166 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 2/54 22279
Raw data (stat): 22279 (runsolver) R 22278 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968396608 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+10.001 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 2248 0 0 0 993 6 0 0 25 0 1 0 968396608 8228864 1571 4294967295 134512640 135730672 3221224576 3221221664 134561684 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2009 1571 301 301 0 1708 0
vsize: 8036
[startup+20.0012 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 25795 0 0 0 1940 59 0 0 25 0 1 0 968396608 80154624 14782 4294967295 134512640 135730672 3221224576 3221199984 134770688 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19569 14782 301 301 0 19268 0
vsize: 78276
[startup+30.0017 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 52257 0 0 0 2885 114 0 0 25 0 1 0 968396608 160079872 30278 4294967295 134512640 135730672 3221224576 3221182316 134608008 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 39082 30279 301 301 0 38781 0
vsize: 156328
[startup+40.0017 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 81574 0 0 0 3827 172 0 0 25 0 1 0 968396608 320458752 50199 4294967295 134512640 135730672 3221224576 3221195440 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 78237 50199 301 301 0 77936 0
vsize: 312948
[startup+50.0018 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 100449 0 0 0 4784 214 0 0 25 0 1 0 968396608 305029120 56567 4294967295 134512640 135730672 3221224576 3221186032 134770605 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74470 56567 301 301 0 74169 0
vsize: 297880
[startup+60.0023 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 136618 0 0 0 5719 279 0 0 25 0 1 0 968396608 494280704 91724 4294967295 134512640 135730672 3221224576 3221204256 134775356 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120674 91726 301 301 0 120373 0
vsize: 482696
[startup+70.0022 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 150729 0 0 0 6690 308 0 0 25 0 1 0 968396608 431218688 88058 4294967295 134512640 135730672 3221224576 3221181424 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 105278 88059 301 301 0 104977 0
vsize: 421112
[startup+80.0036 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 185097 0 0 0 7617 381 0 0 25 0 1 0 968396608 565436416 97659 4294967295 134512640 135730672 3221224576 3221196576 134784089 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138046 97659 301 301 0 137745 0
vsize: 552184
[startup+90.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 197039 0 0 0 8594 404 0 0 25 0 1 0 968396608 565436416 109370 4294967295 134512640 135730672 3221224576 3221193864 134787064 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138046 109370 301 301 0 137745 0
vsize: 552184
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 212725 0 0 0 9560 439 0 0 25 0 1 0 968396608 578150400 124813 4294967295 134512640 135730672 3221224576 3221192152 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141150 124813 301 301 0 140849 0
vsize: 564600
[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 226476 0 0 0 10531 468 0 0 25 0 1 0 968396608 643350528 138368 4294967295 134512640 135730672 3221224576 3221206480 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157068 138369 301 301 0 156767 0
vsize: 628272
[startup+118.185 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 22279
Raw data (stat): 22279 (pb2sat-v2) R 22278 21152 21151 0 -1 0 226476 0 0 0 10531 468 0 0 25 0 1 0 968396608 643350528 138368 4294967295 134512640 135730672 3221224576 3221206480 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157068 138369 301 301 0 156767 0
vsize: 0

Child status: 1
Real time (s): 118.184
CPU time (s): 118.166
CPU user time (s): 113.027
CPU system time (s): 5.13922
CPU usage (%): 99.9849
Max. virtual memory (Kb): 628272
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####