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-sp97ic.opb
MD5SUMe8862b41c9b4f49ec8d11d1df0495e74
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 12497
Biggest coefficient in the objective function 1010107916
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 3093137085579
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 1010107916
Number of bits of the biggest number in a constraint 30
Biggest sum of numbers in a constraint 3093137085579
Number of bits of the biggest sum of numbers42
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark12.972
Number of variables12497
Total number of constraints13530
Number of constraints which are clauses41
Number of constraints which are cardinality constraints (but not clauses)13312
Number of constraints which are nor clauses,nor cardinality constraints177
Minimum length of a constraint1
Maximum length of a constraint6739

Trace number 42655 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 13:27:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25873 boxname=wulflinc4 idbench=1173 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e8862b41c9b4f49ec8d11d1df0495e74  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-sp97ic.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-sp97ic.opb
IDLAUNCH: 25873
/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:        690240 kB
Buffers:         27904 kB
Cached:         293968 kB
SwapCached:        924 kB
Active:          32740 kB
Inactive:       291216 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        689988 kB
SwapTotal:     2097136 kB
SwapFree:      2095228 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14680 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:30:00 (client local time) WITH STATUS 1 IN 125.415 SECONDS
stats: 25873 7 125.415 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 84617137810
c big objective detected
c trying from 0 to 511

	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 1/54 26623
Raw data (stat): 26623 (runsolver) R 26622 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971111321 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 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 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 13569 0 0 0 967 32 0 0 25 0 1 0 971111321 43311104 8017 4294967295 134512640 135730672 3221224576 3220487840 134610093 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10574 8018 301 301 0 10273 0
vsize: 42296
[startup+20.0021 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 46929 0 0 0 1900 99 0 0 25 0 1 0 971111321 145600512 25055 4294967295 134512640 135730672 3221224576 3220879912 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 35547 25056 301 301 0 35246 0
vsize: 142188
[startup+30.0016 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 56105 0 0 0 2876 124 0 0 25 0 1 0 971111321 162377728 34053 4294967295 134512640 135730672 3221224576 3220612096 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 39643 34053 301 301 0 39342 0
vsize: 158572
[startup+40.0024 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 88333 0 0 0 3809 190 0 0 25 0 1 0 971111321 268636160 44660 4294967295 134512640 135730672 3221224576 3221221664 134561675 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 65585 44660 301 301 0 65284 0
vsize: 262340
[startup+50.0028 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 96750 0 0 0 4787 213 0 0 25 0 1 0 971111321 302190592 52913 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73777 52913 301 301 0 73476 0
vsize: 295108
[startup+60.0032 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 110559 0 0 0 5758 242 0 0 25 0 1 0 971111321 312057856 66502 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 76186 66502 301 301 0 75885 0
vsize: 304744
[startup+70.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 145343 0 0 0 6694 306 0 0 25 0 1 0 971111321 428642304 82748 4294967295 134512640 135730672 3221224576 3220427416 134770818 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 104649 82749 301 301 0 104348 0
vsize: 418596
[startup+80.0034 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 179306 0 0 0 7620 381 0 0 25 0 1 0 971111321 539250688 91998 4294967295 134512640 135730672 3221224576 3221222872 134765483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 131653 91998 301 301 0 131352 0
vsize: 526612
[startup+90.0038 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 187804 0 0 0 8601 399 0 0 25 0 1 0 971111321 543735808 97957 4294967295 134512640 135730672 3221224576 3220650232 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 132748 97957 301 301 0 132447 0
vsize: 530992
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 205644 0 0 0 9559 441 0 0 25 0 1 0 971111321 606216192 115562 4294967295 134512640 135730672 3221224576 3218983920 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 148002 115562 301 301 0 147701 0
vsize: 592008
[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 225895 0 0 0 10512 489 0 0 25 0 1 0 971111321 639467520 135549 4294967295 134512640 135730672 3221224576 3218902424 135285418 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156120 135549 301 301 0 155819 0
vsize: 624480
[startup+120.005 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 243075 0 0 0 11474 527 0 0 25 0 1 0 971111321 668229632 152429 4294967295 134512640 135730672 3221224576 3221223024 134736362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163142 152429 301 301 0 162841 0
vsize: 652568
[startup+125.401 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 26623
Raw data (stat): 26623 (pb2sat-v2) R 26622 21152 21151 0 -1 0 243075 0 0 0 11474 527 0 0 25 0 1 0 971111321 668229632 152429 4294967295 134512640 135730672 3221224576 3221223024 134736362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163142 152429 301 301 0 162841 0
vsize: 0

Child status: 1
Real time (s): 125.401
CPU time (s): 125.415
CPU user time (s): 119.836
CPU system time (s): 5.57915
CPU usage (%): 100.011
Max. virtual memory (Kb): 652568
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####