Trace number 2667955

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 0.1OPT3 0.614905 0.61506

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=19-P1=23-P2=23-P3=23-B.opb
MD5SUMa7d7ec970e4707afa1937f254331884d
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.079987
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables45
Total number of constraints7
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 constraints7
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)75
Sum of products size (including duplicates)150
Number of different products75
Sum of products size150

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

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
0.00/0.00	c constraints 78/0 clauses 79/0 units 0
0.00/0.00	c vars 45
0.00/0.00	c objective 5 + 0
0.00/0.07	c 0.06399 5.11328 514 1481
0.00/0.07	o 17
0.19/0.26	c 0.231964 5.24609 367 7480
0.19/0.26	o 5
0.29/0.36	c 0.317951 5.24609 288 10388
0.29/0.36	o 3
0.59/0.61	c 0.52492 5.24609 363 17156
0.59/0.61	s OPTIMUM FOUND
0.59/0.61	v x1 x2 -x3 -x4 -x5 x6 x7 -x8 -x9 -x10 x11 -x12 x13 -x14 -x15 x16 -x17 -x18 x19 x20 x21 -x22 -x23 x24 -x25 x26 -x27 x28 x29 -x30 -x31 -x32 -x33 -x34 -x35 x36 -x37 -x38 -x39 -x40 -x41 x42 -x43 x44 -x45

Verifier Data 

OK	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2667955-1276649520/watcher-2667955-1276649520 -o /tmp/evaluation-result-2667955-1276649520/solver-2667955-1276649520 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2667955-1276649520.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: 1.54 1.14 1.08 3/106 9909
/proc/meminfo: memFree=1856220/2059040 swapFree=4136752/4192956
[pid=9909] ppid=9907 vsize=3512 CPUtime=0
/proc/9909/stat : 9909 (pbct) R 9907 9909 8164 0 -1 4202496 567 0 0 0 0 0 0 0 25 0 1 0 40553543 3596288 489 1992294400 134512640 136485738 4294270128 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/9909/statm: 878 490 198 482 0 394 0

[startup+0.105942 s]
/proc/loadavg: 1.54 1.14 1.08 3/106 9909
/proc/meminfo: memFree=1856220/2059040 swapFree=4136752/4192956
[pid=9909] ppid=9907 vsize=5368 CPUtime=0.1
/proc/9909/stat : 9909 (pbct) R 9907 9909 8164 0 -1 4202496 1056 0 0 0 9 1 0 0 25 0 1 0 40553543 5496832 977 1992294400 134512640 136485738 4294270128 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/9909/statm: 1342 977 244 482 0 858 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 5368

[startup+0.201959 s]
/proc/loadavg: 1.54 1.14 1.08 3/106 9909
/proc/meminfo: memFree=1856220/2059040 swapFree=4136752/4192956
[pid=9909] ppid=9907 vsize=5368 CPUtime=0.19
/proc/9909/stat : 9909 (pbct) R 9907 9909 8164 0 -1 4202496 1056 0 0 0 17 2 0 0 25 0 1 0 40553543 5496832 977 1992294400 134512640 136485738 4294270128 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/9909/statm: 1342 977 244 482 0 858 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 5368

[startup+0.301976 s]
/proc/loadavg: 1.54 1.14 1.08 3/106 9909
/proc/meminfo: memFree=1856220/2059040 swapFree=4136752/4192956
[pid=9909] ppid=9907 vsize=5368 CPUtime=0.29
/proc/9909/stat : 9909 (pbct) R 9907 9909 8164 0 -1 4202496 1060 0 0 0 26 3 0 0 25 0 1 0 40553543 5496832 980 1992294400 134512640 136485738 4294270128 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/9909/statm: 1342 980 244 482 0 858 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5368

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

[startup+0.401995 s]
/proc/loadavg: 1.54 1.14 1.08 3/106 9909
/proc/meminfo: memFree=1856220/2059040 swapFree=4136752/4192956
[pid=9909] ppid=9907 vsize=5368 CPUtime=0.39
/proc/9909/stat : 9909 (pbct) R 9907 9909 8164 0 -1 4202496 1061 0 0 0 35 4 0 0 25 0 1 0 40553543 5496832 980 1992294400 134512640 136485738 4294270128 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/9909/statm: 1342 980 244 482 0 858 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 5368

[startup+0.602029 s]
/proc/loadavg: 1.54 1.14 1.08 3/106 9909
/proc/meminfo: memFree=1856220/2059040 swapFree=4136752/4192956
[pid=9909] ppid=9907 vsize=5368 CPUtime=0.59
/proc/9909/stat : 9909 (pbct) R 9907 9909 8164 0 -1 4202496 1063 0 0 0 51 8 0 0 25 0 1 0 40553543 5496832 982 1992294400 134512640 136485738 4294270128 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/9909/statm: 1342 982 244 482 0 858 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 5368

Child status: 0
Real time (s): 0.61506
CPU time (s): 0.614905
CPU user time (s): 0.527919
CPU system time (s): 0.086986
CPU usage (%): 99.9748
Max. virtual memory (cumulated for all children) (KiB): 5368

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.527919
system time used= 0.086986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1069
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= 8

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node012 at 2010-06-16 02:52:00
IDJOB=2667955
IDBENCH=48038
IDSOLVER=1170
FILE ID=node012/2667955-1276649520
PBS_JOBID= 11172403
Free space on /tmp= 62588 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=19-P1=23-P2=23-P3=23-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2667955-1276649520/watcher-2667955-1276649520 -o /tmp/evaluation-result-2667955-1276649520/solver-2667955-1276649520 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2667955-1276649520.opb

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

MD5SUM BENCH= a7d7ec970e4707afa1937f254331884d
RANDOM SEED=1846021430

node012.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		: 3000.258
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	: 6000.51
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		: 3000.258
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1856624 kB
Buffers:         25208 kB
Cached:          95780 kB
SwapCached:       9656 kB
Active:          88208 kB
Inactive:        46100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1856624 kB
SwapTotal:     4192956 kB
SwapFree:      4136752 kB
Dirty:            2324 kB
Writeback:           0 kB
AnonPages:       11648 kB
Mapped:           9412 kB
Slab:            46348 kB
PageTables:       4040 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182100 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= 62588 MiB
End job on node012 at 2010-06-16 02:52:01