Trace number 2669305

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 0.1UNSAT 23.9494 23.9547

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-pilot.we.opb
MD5SUM78c28cbc46584ca3f2053cae625d9faa
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 benchmark25.8621
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables77678
Total number of constraints1016
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 constraints1016
Minimum length of a constraint10
Maximum length of a constraint2430
Number of terms in the objective function 2760
Biggest coefficient in the objective function 114621939712000000000
Number of bits for the biggest coefficient in the objective function 67
Sum of the numbers in the objective function 6133849937192095161813
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 114621939712000000000
Number of bits of the biggest number in a constraint 67
Biggest sum of numbers in a constraint 6133849937192095161813
Number of bits of the biggest sum of numbers73
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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.99/1.01	c constraints 1016/0 clauses 0/0 units 2052
0.99/1.01	c vars 77678
0.99/1.02	c objective 2048 + -3099110561399517446725
20.69/20.79	c 19.492 1222.38 0 0
23.79/23.85	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-2669305-1276545136/watcher-2669305-1276545136 -o /tmp/evaluation-result-2669305-1276545136/solver-2669305-1276545136 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2669305-1276545136.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: 1.17 1.05 1.01 3/107 30326
/proc/meminfo: memFree=1823100/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=2352 CPUtime=0
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 290 0 0 0 0 0 0 0 20 0 1 0 28169397 2408448 213 1992294400 134512640 136485738 4290056784 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30326/statm: 588 213 151 482 0 104 0

[startup+0.106195 s]
/proc/loadavg: 1.17 1.05 1.01 3/107 30326
/proc/meminfo: memFree=1823100/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=4216 CPUtime=0.1
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 745 0 0 0 10 0 0 0 22 0 1 0 28169397 4317184 668 1992294400 134512640 136485738 4290056784 18446744073709551615 135173539 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30326/statm: 1054 668 157 482 0 570 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4216

[startup+0.201202 s]
/proc/loadavg: 1.17 1.05 1.01 3/107 30326
/proc/meminfo: memFree=1823100/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=5816 CPUtime=0.19
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 1150 0 0 0 19 0 0 0 22 0 1 0 28169397 5955584 1073 1992294400 134512640 136485738 4290056784 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30326/statm: 1454 1076 157 482 0 970 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5816

[startup+0.301211 s]
/proc/loadavg: 1.17 1.05 1.01 3/107 30326
/proc/meminfo: memFree=1823100/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=7760 CPUtime=0.29
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 1550 0 0 0 29 0 0 0 22 0 1 0 28169397 7946240 1473 1992294400 134512640 136485738 4290056784 18446744073709551615 135177477 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30326/statm: 1940 1473 157 482 0 1456 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7760

[startup+0.701247 s]
/proc/loadavg: 1.17 1.05 1.01 3/107 30326
/proc/meminfo: memFree=1823100/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=15640 CPUtime=0.69
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 3412 0 0 0 68 1 0 0 23 0 1 0 28169397 16015360 3335 1992294400 134512640 136485738 4290056784 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30326/statm: 3910 3335 157 482 0 3426 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15640

[startup+1.50032 s]
/proc/loadavg: 1.17 1.05 1.01 2/108 30327
/proc/meminfo: memFree=1796060/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=62772 CPUtime=1.49
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 15363 0 0 0 143 6 0 0 25 0 1 0 28169397 64278528 14847 1992294400 134512640 136485738 4290056784 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 15693 14847 197 482 0 15209 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 62772

[startup+3.10046 s]
/proc/loadavg: 1.17 1.05 1.01 2/108 30327
/proc/meminfo: memFree=1714344/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=168708 CPUtime=3.09
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 43285 0 0 0 290 19 0 0 25 0 1 0 28169397 172756992 40551 1992294400 134512640 136485738 4290056784 18446744073709551615 134719631 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 42177 40552 197 482 0 41693 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 168708

[startup+6.30075 s]
/proc/loadavg: 1.16 1.04 1.01 2/108 30327
/proc/meminfo: memFree=1511356/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=364500 CPUtime=6.29
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 94885 0 0 0 591 38 0 0 25 0 1 0 28169397 373248000 89202 1992294400 134512640 136485738 4290056784 18446744073709551615 135859470 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 91125 89204 197 482 0 90641 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 364500

[startup+12.7013 s]
/proc/loadavg: 1.14 1.04 1.01 2/108 30327
/proc/meminfo: memFree=1134024/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=725136 CPUtime=12.68
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 190867 0 0 0 1188 80 0 0 25 0 1 0 28169397 742539264 178712 1992294400 134512640 136485738 4290056784 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 181284 178713 197 482 0 180800 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 725136

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

[startup+12.8013 s]
/proc/loadavg: 1.14 1.04 1.01 2/108 30327
/proc/meminfo: memFree=1134024/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=730548 CPUtime=12.79
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 192310 0 0 0 1198 81 0 0 25 0 1 0 28169397 748081152 180155 1992294400 134512640 136485738 4290056784 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 182637 180156 197 482 0 182153 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 730548

[startup+19.2009 s]
/proc/loadavg: 1.12 1.04 1.01 2/108 30327
/proc/meminfo: memFree=686260/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=1198512 CPUtime=19.19
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 313966 0 0 0 1794 125 0 0 25 0 1 0 28169397 1227276288 285542 1992294400 134512640 136485738 4290056784 18446744073709551615 135857080 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 299628 285542 210 482 0 299144 0
Current children cumulated CPU time (s) 19.19
Current children cumulated vsize (KiB) 1198512

[startup+22.4012 s]
/proc/loadavg: 1.12 1.04 1.01 2/108 30327
/proc/meminfo: memFree=708456/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=1138660 CPUtime=22.38
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 328184 0 0 0 2108 130 0 0 25 0 1 0 28169397 1165987840 278084 1992294400 134512640 136485738 4290056784 18446744073709551615 134720107 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 284665 278084 246 482 0 284181 0
Current children cumulated CPU time (s) 22.38
Current children cumulated vsize (KiB) 1138660

[startup+23.2083 s]
/proc/loadavg: 1.12 1.04 1.01 2/108 30327
/proc/meminfo: memFree=708456/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=1138660 CPUtime=23.19
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 328184 0 0 0 2189 130 0 0 25 0 1 0 28169397 1165987840 278084 1992294400 134512640 136485738 4290056784 18446744073709551615 134720130 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 284665 278084 246 482 0 284181 0
Current children cumulated CPU time (s) 23.19
Current children cumulated vsize (KiB) 1138660

[startup+23.6013 s]
/proc/loadavg: 1.12 1.04 1.01 2/108 30327
/proc/meminfo: memFree=708456/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=1134040 CPUtime=23.58
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 328184 0 0 0 2228 130 0 0 25 0 1 0 28169397 1161256960 276929 1992294400 134512640 136485738 4290056784 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 283510 276929 246 482 0 283026 0
Current children cumulated CPU time (s) 23.58
Current children cumulated vsize (KiB) 1134040

[startup+23.8013 s]
/proc/loadavg: 1.12 1.04 1.01 2/108 30327
/proc/meminfo: memFree=708456/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=1109464 CPUtime=23.79
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202496 328184 0 0 0 2248 131 0 0 25 0 1 0 28169397 1136091136 272871 1992294400 134512640 136485738 4290056784 18446744073709551615 134603763 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30326/statm: 277366 272871 246 482 0 276882 0
Current children cumulated CPU time (s) 23.79
Current children cumulated vsize (KiB) 1109464

[startup+23.9013 s]
/proc/loadavg: 1.12 1.04 1.01 2/108 30327
/proc/meminfo: memFree=708456/2059040 swapFree=4140108/4192956
[pid=30326] ppid=30324 vsize=0 CPUtime=23.89
/proc/30326/stat : 30326 (pbct) R 30324 30326 29548 0 -1 4202500 328185 0 0 0 2253 136 0 0 25 0 1 0 28169397 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30326/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 23.89
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 23.9547
CPU time (s): 23.9494
CPU user time (s): 22.5326
CPU system time (s): 1.41678
CPU usage (%): 99.9779
Max. virtual memory (cumulated for all children) (KiB): 1251708

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.5326
system time used= 1.41678
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 328185
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= 49

runsolver used 0.031995 second user time and 0.12798 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-14 21:52:17
IDJOB=2669305
IDBENCH=2390
IDSOLVER=1170
FILE ID=node025/2669305-1276545136
PBS_JOBID= 11173465
Free space on /tmp= 62568 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-pilot.we.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669305-1276545136/watcher-2669305-1276545136 -o /tmp/evaluation-result-2669305-1276545136/solver-2669305-1276545136 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2669305-1276545136.opb

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

MD5SUM BENCH= 78c28cbc46584ca3f2053cae625d9faa
RANDOM SEED=1920735587

node025.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1823620 kB
Buffers:         36132 kB
Cached:         109996 kB
SwapCached:       6584 kB
Active:          87788 kB
Inactive:        71892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1823620 kB
SwapTotal:     4192956 kB
SwapFree:      4140108 kB
Dirty:            6600 kB
Writeback:           0 kB
AnonPages:       11788 kB
Mapped:          13020 kB
Slab:            53944 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182656 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= 62564 MiB
End job on node025 at 2010-06-14 21:52:41