Trace number 2681883

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 fixed? (MO) 27.8688 27.9767

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos9.opb
MD5SUM9b565ffd2f62b11d1859d685ea38235b
Bench CategoryOPT-MEDINT (optimisation, medium 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 variables874498
Total number of constraints110909
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)87
Number of constraints which are nor clauses,nor cardinality constraints110822
Minimum length of a constraint11
Maximum length of a constraint14080
Number of terms in the objective function 198658
Biggest coefficient in the objective function 1024
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 38727219
Number of bits of the sum of numbers in the objective function 26
Biggest number in a constraint 30720
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 38727219
Number of bits of the biggest sum of numbers26
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
10.90/11.00	c constraints 110909/0 clauses 0/0 units 0
10.90/11.00	c vars 874498
11.00/11.01	c objective 198658 + 0
27.69/27.81	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-2681883-1277476840/watcher-2681883-1277476840 -o /tmp/evaluation-result-2681883-1277476840/solver-2681883-1277476840 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681883-1277476840.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: 1.00 0.99 0.83 3/105 29374
/proc/meminfo: memFree=1710364/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=2416 CPUtime=0
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 297 0 0 0 0 0 0 0 25 0 1 0 88977990 2473984 217 1992294400 134512640 136421960 4289860064 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 604 217 135 467 0 135 0

[startup+0.0134949 s]
/proc/loadavg: 1.00 0.99 0.83 3/105 29374
/proc/meminfo: memFree=1710364/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=2680 CPUtime=0.01
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 354 0 0 0 1 0 0 0 25 0 1 0 88977990 2744320 274 1992294400 134512640 136421960 4289860064 18446744073709551615 135372747 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 670 274 135 467 0 201 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2680

[startup+0.101488 s]
/proc/loadavg: 1.00 0.99 0.83 3/105 29374
/proc/meminfo: memFree=1710364/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=5864 CPUtime=0.09
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 1446 0 0 0 9 0 0 0 25 0 1 0 88977990 6004736 993 1992294400 134512640 136421960 4289860064 18446744073709551615 135818467 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 1466 993 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.301511 s]
/proc/loadavg: 1.00 0.99 0.83 3/105 29374
/proc/meminfo: memFree=1710364/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=16492 CPUtime=0.29
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 4786 0 0 0 28 1 0 0 25 0 1 0 88977990 16887808 2856 1992294400 134512640 136421960 4289860064 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 4123 2856 135 467 0 3654 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16492

[startup+0.701554 s]
/proc/loadavg: 1.00 0.99 0.83 3/105 29374
/proc/meminfo: memFree=1710364/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=16492 CPUtime=0.69
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 5189 0 0 0 68 1 0 0 25 0 1 0 88977990 16887808 3259 1992294400 134512640 136421960 4289860064 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 4123 3259 137 467 0 3654 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16492

[startup+1.50164 s]
/proc/loadavg: 1.00 0.99 0.83 2/106 29375
/proc/meminfo: memFree=1690392/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=38020 CPUtime=1.49
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 10582 0 0 0 145 4 0 0 25 0 1 0 88977990 38932480 8652 1992294400 134512640 136421960 4289860064 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 9505 8652 145 467 0 9036 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 38020

[startup+3.10082 s]
/proc/loadavg: 1.00 0.99 0.83 2/106 29375
/proc/meminfo: memFree=1657284/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=83488 CPUtime=3.09
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 21893 0 0 0 300 9 0 0 25 0 1 0 88977990 85491712 19963 1992294400 134512640 136421960 4289860064 18446744073709551615 135806154 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 20872 19964 145 467 0 20403 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 83488

[startup+6.30117 s]
/proc/loadavg: 1.16 1.02 0.84 2/106 29375
/proc/meminfo: memFree=1572840/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=170556 CPUtime=6.29
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 43000 0 0 0 610 19 0 0 25 0 1 0 88977990 174649344 41070 1992294400 134512640 136421960 4289860064 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29374/statm: 42639 41070 145 467 0 42170 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 170556

[startup+12.7009 s]
/proc/loadavg: 1.15 1.02 0.84 2/106 29375
/proc/meminfo: memFree=1318888/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=466780 CPUtime=12.69
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 118239 0 0 0 1216 53 0 0 25 0 1 0 88977990 477982720 114188 1992294400 134512640 136421960 4289860064 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29374/statm: 116695 114189 193 467 0 116226 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 466780

[startup+25.5013 s]
/proc/loadavg: 1.11 1.02 0.84 2/106 29375
/proc/meminfo: memFree=100216/2059040 swapFree=4136664/4192956
[pid=29374] ppid=29372 vsize=1673768 CPUtime=25.49
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 435236 0 0 0 2347 202 0 0 25 0 1 0 88977990 1713938432 409357 1992294400 134512640 136421960 4289860064 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29374/statm: 418442 409358 193 467 0 417973 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1673768



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+27.8016 s]
/proc/loadavg: 1.11 1.02 0.84 3/106 29375
/proc/meminfo: memFree=9256/2059040 swapFree=4135840/4192956
[pid=29374] ppid=29372 vsize=1844756 CPUtime=27.69
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4202496 480186 0 0 0 2538 231 0 0 25 0 1 0 88977990 1889030144 453805 1992294400 134512640 136421960 4289860064 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 7
/proc/29374/statm: 461189 453806 193 467 0 460720 0
Current children cumulated CPU time (s) 27.69
Current children cumulated vsize (KiB) 1844756

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

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

[startup+27.9096 s]
/proc/loadavg: 1.11 1.02 0.84 3/106 29375
/proc/meminfo: memFree=9256/2059040 swapFree=4135840/4192956
[pid=29374] ppid=29372 vsize=0 CPUtime=27.79
/proc/29374/stat : 29374 (pbct) R 29372 29374 29150 0 -1 4194308 480197 0 0 0 2538 241 0 0 25 0 1 0 88977990 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 7
/proc/29374/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 27.79
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 27.9767
CPU time (s): 27.8688
CPU user time (s): 25.3871
CPU system time (s): 2.48162
CPU usage (%): 99.6141
Max. virtual memory (cumulated for all children) (KiB): 1844756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.3871
system time used= 2.48162
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 480197
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= 4
involuntary context switches= 132

runsolver used 0.052991 second user time and 0.146977 second system time

The end

Launcher Data 

Begin job on node086 at 2010-06-25 16:40:43
IDJOB=2681883
IDBENCH=1505
IDSOLVER=1192
FILE ID=node086/2681883-1277476840
PBS_JOBID= 11190482
Free space on /tmp= 62296 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos9.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681883-1277476840/watcher-2681883-1277476840 -o /tmp/evaluation-result-2681883-1277476840/solver-2681883-1277476840 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681883-1277476840.opb

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

MD5SUM BENCH= 9b565ffd2f62b11d1859d685ea38235b
RANDOM SEED=303468619

node086.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		: 3000.244
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		: 3000.244
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	: 5999.40
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1710644 kB
Buffers:         58208 kB
Cached:         197216 kB
SwapCached:       9312 kB
Active:         125780 kB
Inactive:       142776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1710644 kB
SwapTotal:     4192956 kB
SwapFree:      4136664 kB
Dirty:           46388 kB
Writeback:           0 kB
AnonPages:       11628 kB
Mapped:           8396 kB
Slab:            58044 kB
PageTables:       4092 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181256 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= 62296 MiB
End job on node086 at 2010-06-25 16:41:13