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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-blp-ar98.opb
MD5SUM181a05258ae35e5f3b5b834240f1847a
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 572975239517507
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.23881
Number of variables20024
Total number of constraints17064
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)16718
Number of constraints which are nor clauses,nor cardinality constraints345
Minimum length of a constraint1
Maximum length of a constraint15837

Trace number 42631 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 13:05:17 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25851 boxname=wulflinc1 idbench=1151 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  181a05258ae35e5f3b5b834240f1847a  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-blp-ar98.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-blp-ar98.opb
IDLAUNCH: 25851
/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:        610144 kB
Buffers:         31376 kB
Cached:         367960 kB
SwapCached:       1184 kB
Active:          39588 kB
Inactive:       362088 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        609892 kB
SwapTotal:     2097136 kB
SwapFree:      2094888 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            17124 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:07:21 (client local time) WITH STATUS 1 IN 123.876 SECONDS
stats: 25851 7 123.876 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): 0.85 0.94 0.90 2/55 18575
Raw data (stat): 18575 (runsolver) R 18574 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914128578 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+9.99982 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 18575
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 10411 0 0 0 972 27 0 0 25 0 1 0 914128578 31936512 6552 4294967295 134512640 135730672 3221224576 3221221776 134579269 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 7797 6552 301 301 0 7496 0
vsize: 31188
[startup+20.0006 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 37184 0 0 0 1915 85 0 0 25 0 1 0 914128578 111624192 21619 4294967295 134512640 135730672 3221224576 3221221776 134579294 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 27252 21619 301 301 0 26951 0
vsize: 109008
[startup+30.0005 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 55094 0 0 0 2872 128 0 0 25 0 1 0 914128578 157593600 33187 4294967295 134512640 135730672 3221224576 3220300124 135109339 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 38475 33187 301 301 0 38174 0
vsize: 153900
[startup+40.0013 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 92043 0 0 0 3796 204 0 0 25 0 1 0 914128578 303759360 48468 4294967295 134512640 135730672 3221224576 3220849504 134783984 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 74160 48468 301 301 0 73859 0
vsize: 296640
[startup+50.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 103942 0 0 0 4768 232 0 0 25 0 1 0 914128578 303759360 60150 4294967295 134512640 135730672 3221224576 3220586520 135301581 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 74160 60150 301 301 0 73859 0
vsize: 296640
[startup+60.0018 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 135867 0 0 0 5698 302 0 0 25 0 1 0 914128578 488407040 91253 4294967295 134512640 135730672 3221224576 3220630984 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 119240 91253 301 301 0 118939 0
vsize: 476960
[startup+70.0016 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 179171 0 0 0 6603 397 0 0 25 0 1 0 914128578 535875584 92051 4294967295 134512640 135730672 3221224576 3220210976 134813801 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 130829 92051 301 301 0 130528 0
vsize: 523316
[startup+80.0024 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 190273 0 0 0 7574 426 0 0 25 0 1 0 914128578 569430016 102951 4294967295 134512640 135730672 3221224576 3221158192 134546503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139021 102951 301 301 0 138720 0
vsize: 556084
[startup+90.0032 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 203179 0 0 0 8543 458 0 0 25 0 1 0 914128578 569430016 115623 4294967295 134512640 135730672 3221224576 3220992176 134607982 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139021 115623 301 301 0 138720 0
vsize: 556084
[startup+100.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 216878 0 0 0 9506 495 0 0 25 0 1 0 914128578 576323584 129103 4294967295 134512640 135730672 3221224576 3220367664 134607982 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140704 129103 301 301 0 140403 0
vsize: 562816
[startup+110.004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 223326 0 0 0 10488 513 0 0 25 0 1 0 914128578 632598528 135427 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154443 135427 301 301 0 154142 0
vsize: 617772
[startup+120.004 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 236613 0 0 0 11458 543 0 0 25 0 1 0 914128578 656519168 147735 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160283 147735 301 301 0 159982 0
vsize: 641132
[startup+123.864 s]
Raw data (loadavg): 0.99 0.97 0.91 1/54 18577
Raw data (stat): 18575 (pb2sat-v2) R 18574 8378 8377 0 -1 0 236613 0 0 0 11458 543 0 0 25 0 1 0 914128578 656519168 147735 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160283 147735 301 301 0 159982 0
vsize: 0

Child status: 1
Real time (s): 123.864
CPU time (s): 123.876
CPU user time (s): 118.142
CPU system time (s): 5.73413
CPU usage (%): 100.01
Max. virtual memory (Kb): 641132
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####