Trace number 2682931

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 into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1 fixedUNSAT 24.4233 24.4312

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-stocfor2.opb
MD5SUMaaead0b856e770577601eb0cbaa220bd
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark5.43317
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables60930
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 constraint30
Maximum length of a constraint450
Number of terms in the objective function 31770
Biggest coefficient in the objective function 1855425871872000000
Number of bits for the biggest coefficient in the objective function 61
Sum of the numbers in the objective function 393343428838367800485
Number of bits of the sum of numbers in the objective function 69
Biggest number in a constraint 1855425871872000000
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 393343428838367800485
Number of bits of the biggest sum of numbers69
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
1.19/1.21	c constraints 2157/0 clauses 0/0 units 2079
1.19/1.21	c vars 60930
1.19/1.21	c objective 31770 + -202216669769184593985
18.29/18.39	c 17.0334 1205.57 7 59558
24.28/24.33	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682931-1277487537/watcher-2682931-1277487537 -o /tmp/evaluation-result-2682931-1277487537/solver-2682931-1277487537 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682931-1277487537.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 0.95 2/105 30218
/proc/meminfo: memFree=1886956/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=2416 CPUtime=0
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 291 0 0 0 0 0 0 0 22 0 1 0 90047612 2473984 211 1992294400 134512640 136421960 4287647168 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30218/statm: 604 212 138 467 0 135 0

[startup+0.0404971 s]
/proc/loadavg: 0.99 0.97 0.95 2/105 30218
/proc/meminfo: memFree=1886956/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=3004 CPUtime=0.03
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 486 0 0 0 3 0 0 0 22 0 1 0 90047612 3076096 373 1992294400 134512640 136421960 4287647168 18446744073709551615 135806087 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30218/statm: 751 373 138 467 0 282 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3004

[startup+0.101503 s]
/proc/loadavg: 0.99 0.97 0.95 2/105 30218
/proc/meminfo: memFree=1886956/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=4140 CPUtime=0.09
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 881 0 0 0 9 0 0 0 22 0 1 0 90047612 4239360 654 1992294400 134512640 136421960 4287647168 18446744073709551615 135161817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30218/statm: 1035 654 139 467 0 566 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4140

[startup+0.301526 s]
/proc/loadavg: 0.99 0.97 0.95 2/105 30218
/proc/meminfo: memFree=1886956/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=7836 CPUtime=0.29
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 1829 0 0 0 28 1 0 0 22 0 1 0 90047612 8024064 1602 1992294400 134512640 136421960 4287647168 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30218/statm: 1959 1602 146 467 0 1490 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7836

[startup+0.701571 s]
/proc/loadavg: 0.99 0.97 0.95 2/105 30218
/proc/meminfo: memFree=1886956/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=17084 CPUtime=0.69
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 4123 0 0 0 67 2 0 0 24 0 1 0 90047612 17494016 3896 1992294400 134512640 136421960 4287647168 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30218/statm: 4271 3896 146 467 0 3802 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17084

[startup+1.50166 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=1869216/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=50304 CPUtime=1.49
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 12421 0 0 0 144 5 0 0 25 0 1 0 90047612 51511296 12194 1992294400 134512640 136421960 4287647168 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 12576 12195 195 467 0 12107 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 50304

[startup+3.10184 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=1787252/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=190084 CPUtime=3.09
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 48688 0 0 0 285 24 0 0 25 0 1 0 90047612 194646016 46243 1992294400 134512640 136421960 4287647168 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 47521 46244 195 467 0 47052 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 190084

[startup+6.3012 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=1543468/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=392840 CPUtime=6.29
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 103198 0 0 0 582 47 0 0 25 0 1 0 90047612 402268160 97035 1992294400 134512640 136421960 4287647168 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 98210 97035 195 467 0 97741 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 392840

[startup+12.7009 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=1119636/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=1017360 CPUtime=12.69
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 267618 0 0 0 1154 115 0 0 25 0 1 0 90047612 1041776640 246019 1992294400 134512640 136421960 4287647168 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 254340 246024 196 467 0 253871 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1017360

Solver just ended. Dumping a history of the last processes samples

[startup+19.1017 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=744908/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=1153772 CPUtime=19.09
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 325048 0 0 0 1773 136 0 0 25 0 1 0 90047612 1181462528 280009 1992294400 134512640 136421960 4287647168 18446744073709551615 134654884 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 288443 280009 240 467 0 287974 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 1153772

[startup+22.301 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=793764/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=1117332 CPUtime=22.28
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 325048 0 0 0 2092 136 0 0 25 0 1 0 90047612 1144147968 272728 1992294400 134512640 136421960 4287647168 18446744073709551615 135806171 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 279333 272728 240 467 0 278864 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 1117332

[startup+23.1081 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=798476/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=1112712 CPUtime=23.09
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 325048 0 0 0 2173 136 0 0 25 0 1 0 90047612 1139417088 271573 1992294400 134512640 136421960 4287647168 18446744073709551615 135801163 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 278178 271573 240 467 0 277709 0
Current children cumulated CPU time (s) 23.09
Current children cumulated vsize (KiB) 1112712

[startup+23.9012 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=798476/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=1044036 CPUtime=23.88
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 325048 0 0 0 2252 136 0 0 25 0 1 0 90047612 1069092864 260720 1992294400 134512640 136421960 4287647168 18446744073709551615 135801367 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 261009 260720 240 467 0 260540 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 1044036

[startup+24.3012 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=842000/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=1044036 CPUtime=24.28
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202496 325048 0 0 0 2292 136 0 0 25 0 1 0 90047612 1069092864 260720 1992294400 134512640 136421960 4287647168 18446744073709551615 134514181 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30218/statm: 261009 260720 240 467 0 260540 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 1044036

[startup+24.4012 s]
/proc/loadavg: 0.99 0.97 0.95 2/106 30219
/proc/meminfo: memFree=842000/2059040 swapFree=4138548/4192956
[pid=30218] ppid=30216 vsize=0 CPUtime=24.38
/proc/30218/stat : 30218 (pbct) R 30216 30218 29340 0 -1 4202500 325049 0 0 0 2295 143 0 0 25 0 1 0 90047612 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30218/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 24.38
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 24.4312
CPU time (s): 24.4233
CPU user time (s): 22.9575
CPU system time (s): 1.46578
CPU usage (%): 99.9676
Max. virtual memory (cumulated for all children) (KiB): 1234496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.9575
system time used= 1.46578
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 325049
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1
involuntary context switches= 28

runsolver used 0.044993 second user time and 0.120981 second system time

The end

Launcher Data 

Begin job on node085 at 2010-06-25 19:38:58
IDJOB=2682931
IDBENCH=2453
IDSOLVER=1192
FILE ID=node085/2682931-1277487537
PBS_JOBID= 11190483
Free space on /tmp= 121672 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-stocfor2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682931-1277487537/watcher-2682931-1277487537 -o /tmp/evaluation-result-2682931-1277487537/solver-2682931-1277487537 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682931-1277487537.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= aaead0b856e770577601eb0cbaa220bd
RANDOM SEED=359143400

node085.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.221
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.221
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1887360 kB
Buffers:          4584 kB
Cached:          84912 kB
SwapCached:       6284 kB
Active:          34444 kB
Inactive:        67228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1887360 kB
SwapTotal:     4192956 kB
SwapFree:      4138548 kB
Dirty:            6452 kB
Writeback:           0 kB
AnonPages:       10672 kB
Mapped:          11616 kB
Slab:            47972 kB
PageTables:       4108 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181392 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 121668 MiB
End job on node085 at 2010-06-25 19:39:22