Trace number 2668342

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? (MO) 31.5512 31.7869

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-d6cube.opb
MD5SUMd322c8ef05198e65a211d45af91a5272
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables185520
Total number of constraints404
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 constraints404
Minimum length of a constraint30
Maximum length of a constraint185520
Number of terms in the objective function 185520
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 6640019433432
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 193273528320
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 11024119093221
Number of bits of the biggest sum of numbers44
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
4.99/5.03	c constraints 404/0 clauses 0/0 units 0
4.99/5.03	c vars 185520
4.99/5.03	c objective 185520 + 0
31.37/31.61	s UNKNOWN

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-2668342-1276547193/watcher-2668342-1276547193 -o /tmp/evaluation-result-2668342-1276547193/solver-2668342-1276547193 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668342-1276547193.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: 1.01 1.00 1.00 3/106 30638
/proc/meminfo: memFree=1794080/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=2488 CPUtime=0
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 305 0 0 0 0 0 0 0 20 0 1 0 28374835 2547712 228 1992294400 134512640 136485738 4293227520 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30638/statm: 622 228 149 482 0 138 0

[startup+0.0546481 s]
/proc/loadavg: 1.01 1.00 1.00 3/106 30638
/proc/meminfo: memFree=1794080/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=4080 CPUtime=0.05
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 765 0 0 0 5 0 0 0 20 0 1 0 28374835 4177920 541 1992294400 134512640 136485738 4293227520 18446744073709551615 135844737 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30638/statm: 1020 541 149 482 0 536 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4080

[startup+0.100651 s]
/proc/loadavg: 1.01 1.00 1.00 3/106 30638
/proc/meminfo: memFree=1794080/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=5936 CPUtime=0.09
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 1336 0 0 0 9 0 0 0 20 0 1 0 28374835 6078464 886 1992294400 134512640 136485738 4293227520 18446744073709551615 135419069 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30638/statm: 1484 886 149 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.300667 s]
/proc/loadavg: 1.01 1.00 1.00 3/106 30638
/proc/meminfo: memFree=1794080/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=10224 CPUtime=0.29
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 3022 0 0 0 28 1 0 0 20 0 1 0 28374835 10469376 2122 1992294400 134512640 136485738 4293227520 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30638/statm: 2556 2122 149 482 0 2072 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10224

[startup+0.700698 s]
/proc/loadavg: 1.01 1.00 1.00 3/106 30638
/proc/meminfo: memFree=1794080/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=16564 CPUtime=0.69
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 5083 0 0 0 67 2 0 0 21 0 1 0 28374835 16961536 3156 1992294400 134512640 136485738 4293227520 18446744073709551615 135177532 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30638/statm: 4141 3156 151 482 0 3657 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16564

[startup+1.50076 s]
/proc/loadavg: 1.01 1.00 1.00 2/107 30639
/proc/meminfo: memFree=1777332/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=38112 CPUtime=1.49
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 11103 0 0 0 144 5 0 0 23 0 1 0 28374835 39026688 7570 1992294400 134512640 136485738 4293227520 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30638/statm: 9528 7570 156 482 0 9044 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 38112

[startup+3.10089 s]
/proc/loadavg: 1.01 1.00 1.00 2/107 30639
/proc/meminfo: memFree=1757368/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=63776 CPUtime=3.09
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 18265 0 0 0 301 8 0 0 25 0 1 0 28374835 65306624 13187 1992294400 134512640 136485738 4293227520 18446744073709551615 135350462 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30638/statm: 15944 13187 156 482 0 15460 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 63776

[startup+6.30115 s]
/proc/loadavg: 1.01 1.00 1.00 2/107 30639
/proc/meminfo: memFree=1679000/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=191836 CPUtime=6.29
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 50460 0 0 0 605 24 0 0 25 0 1 0 28374835 196440064 44351 1992294400 134512640 136485738 4293227520 18446744073709551615 135839892 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30638/statm: 47959 44351 197 482 0 47475 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 191836

[startup+12.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30639
/proc/meminfo: memFree=1224168/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=662336 CPUtime=12.69
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 174306 0 0 0 1192 77 0 0 25 0 1 0 28374835 678232064 157879 1992294400 134512640 136485738 4293227520 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30638/statm: 165584 157880 197 482 0 165100 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 662336

[startup+25.5007 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 30639
/proc/meminfo: memFree=224480/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=1609172 CPUtime=25.48
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4202496 425849 0 0 0 2358 190 0 0 25 0 1 0 28374835 1647792128 395365 1992294400 134512640 136485738 4293227520 18446744073709551615 135340005 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30638/statm: 402293 395366 197 482 0 401809 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1609172



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.4001 s]
/proc/loadavg: 1.08 1.02 1.01 1/107 30639
/proc/meminfo: memFree=7824/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=1866096 CPUtime=31.37
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4204544 495384 0 0 0 2910 227 0 0 24 0 1 0 28374835 1910882304 459410 1992294400 134512640 136485738 4293227520 18446744073709551615 135868589 0 0 4096 16387 0 0 0 17 0 0 0 19
/proc/30638/statm: 466524 459410 197 482 0 466040 0
Current children cumulated CPU time (s) 31.37
Current children cumulated vsize (KiB) 1866096

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+31.7111 s]
/proc/loadavg: 1.08 1.02 1.01 1/107 30639
/proc/meminfo: memFree=7824/2059040 swapFree=4136648/4192956
[pid=30638] ppid=30636 vsize=0 CPUtime=31.47
/proc/30638/stat : 30638 (pbct) R 30636 30638 30512 0 -1 4194308 495434 0 0 0 2910 237 0 0 24 0 1 0 28374835 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 19
/proc/30638/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.47
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 31.7869
CPU time (s): 31.5512
CPU user time (s): 29.1016
CPU system time (s): 2.44963
CPU usage (%): 99.2586
Max. virtual memory (cumulated for all children) (KiB): 1866096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.1016
system time used= 2.44963
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 495434
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= 3
involuntary context switches= 464

runsolver used 0.055991 second user time and 0.165974 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-14 22:26:34
IDJOB=2668342
IDBENCH=2403
IDSOLVER=1170
FILE ID=node026/2668342-1276547193
PBS_JOBID= 11173482
Free space on /tmp= 62500 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-d6cube.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668342-1276547193/watcher-2668342-1276547193 -o /tmp/evaluation-result-2668342-1276547193/solver-2668342-1276547193 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668342-1276547193.opb

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

MD5SUM BENCH= d322c8ef05198e65a211d45af91a5272
RANDOM SEED=1442463627

node026.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1794600 kB
Buffers:         44428 kB
Cached:         140792 kB
SwapCached:       9700 kB
Active:          90348 kB
Inactive:       107576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1794600 kB
SwapTotal:     4192956 kB
SwapFree:      4136648 kB
Dirty:           20524 kB
Writeback:          16 kB
AnonPages:       10880 kB
Mapped:           9408 kB
Slab:            44772 kB
PageTables:       4060 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181328 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= 62496 MiB
End job on node026 at 2010-06-14 22:27:08