Trace number 2667918

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 0.685895 0.685632

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=8-P0=223-P1=73-B.opb
MD5SUM922420a68683b7e293a59c451b6ae509
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 benchmark0.052991
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 variables24
Total number of constraints3
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 constraints3
Minimum length of a constraint8
Maximum length of a constraint72
Number of terms in the objective function 8
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 255
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 32768
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 130456
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)64
Sum of products size (including duplicates)128
Number of different products64
Sum of products size128

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 65/0 clauses 66/0 units 0
0.00/0.00	c vars 24
0.00/0.00	c objective 8 + 0
0.19/0.24	c 0.217966 5.00391 569 5170
0.19/0.24	o 11
0.59/0.66	c 0.58591 5.00391 598 15566
0.59/0.66	o 7
0.59/0.68	c 0.600908 5.00391 428 15988
0.59/0.68	o 3
0.59/0.68	c 0.600908 5.00391 214 15988
0.59/0.68	s OPTIMUM FOUND
0.59/0.68	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

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-2667918-1276648532/watcher-2667918-1276648532 -o /tmp/evaluation-result-2667918-1276648532/solver-2667918-1276648532 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2667918-1276648532.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: 0.92 0.98 1.02 3/106 6416
/proc/meminfo: memFree=1803808/2059040 swapFree=4134608/4192956
[pid=6416] ppid=6414 vsize=3512 CPUtime=0
/proc/6416/stat : 6416 (pbct) R 6414 6416 5885 0 -1 4202496 575 0 0 0 0 0 0 0 20 0 1 0 40439596 3596288 498 1992294400 134512640 136485738 4292797136 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/6416/statm: 878 499 198 482 0 394 0

[startup+0.0152121 s]
/proc/loadavg: 0.92 0.98 1.02 3/106 6416
/proc/meminfo: memFree=1803808/2059040 swapFree=4134608/4192956
[pid=6416] ppid=6414 vsize=4052 CPUtime=0.01
/proc/6416/stat : 6416 (pbct) R 6414 6416 5885 0 -1 4202496 700 0 0 0 1 0 0 0 20 0 1 0 40439596 4149248 623 1992294400 134512640 136485738 4292797136 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/6416/statm: 1013 624 198 482 0 529 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4052

[startup+0.101222 s]
/proc/loadavg: 0.92 0.98 1.02 3/106 6416
/proc/meminfo: memFree=1803808/2059040 swapFree=4134608/4192956
[pid=6416] ppid=6414 vsize=4992 CPUtime=0.09
/proc/6416/stat : 6416 (pbct) R 6414 6416 5885 0 -1 4202496 975 0 0 0 9 0 0 0 20 0 1 0 40439596 5111808 898 1992294400 134512640 136485738 4292797136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/6416/statm: 1248 898 226 482 0 764 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4992

[startup+0.30124 s]
/proc/loadavg: 0.92 0.98 1.02 3/106 6416
/proc/meminfo: memFree=1803808/2059040 swapFree=4134608/4192956
[pid=6416] ppid=6414 vsize=5120 CPUtime=0.29
/proc/6416/stat : 6416 (pbct) R 6414 6416 5885 0 -1 4202496 1015 0 0 0 26 3 0 0 20 0 1 0 40439596 5242880 937 1992294400 134512640 136485738 4292797136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/6416/statm: 1280 937 244 482 0 796 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5120

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

[startup+0.50126 s]
/proc/loadavg: 0.92 0.98 1.02 3/106 6416
/proc/meminfo: memFree=1803808/2059040 swapFree=4134608/4192956
[pid=6416] ppid=6414 vsize=5120 CPUtime=0.49
/proc/6416/stat : 6416 (pbct) R 6414 6416 5885 0 -1 4202496 1015 0 0 0 44 5 0 0 20 0 1 0 40439596 5242880 937 1992294400 134512640 136485738 4292797136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/6416/statm: 1280 937 244 482 0 796 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 5120

[startup+0.601269 s]
/proc/loadavg: 0.92 0.98 1.02 3/106 6416
/proc/meminfo: memFree=1803808/2059040 swapFree=4134608/4192956
[pid=6416] ppid=6414 vsize=5120 CPUtime=0.59
/proc/6416/stat : 6416 (pbct) R 6414 6416 5885 0 -1 4202496 1015 0 0 0 52 7 0 0 20 0 1 0 40439596 5242880 937 1992294400 134512640 136485738 4292797136 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/6416/statm: 1280 937 244 482 0 796 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 5120

Child status: 0
Real time (s): 0.685632
CPU time (s): 0.685895
CPU user time (s): 0.604908
CPU system time (s): 0.080987
CPU usage (%): 100.038
Max. virtual memory (cumulated for all children) (KiB): 5120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.604908
system time used= 0.080987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1023
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= 11

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node017 at 2010-06-16 02:35:32
IDJOB=2667918
IDBENCH=48001
IDSOLVER=1170
FILE ID=node017/2667918-1276648532
PBS_JOBID= 11172446
Free space on /tmp= 62540 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=8-P0=223-P1=73-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2667918-1276648532/watcher-2667918-1276648532 -o /tmp/evaluation-result-2667918-1276648532/solver-2667918-1276648532 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2667918-1276648532.opb

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

MD5SUM BENCH= 922420a68683b7e293a59c451b6ae509
RANDOM SEED=122253077

node017.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	: 5599.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1804336 kB
Buffers:         66008 kB
Cached:         106480 kB
SwapCached:      11752 kB
Active:          95472 kB
Inactive:        91752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1804336 kB
SwapTotal:     4192956 kB
SwapFree:      4134608 kB
Dirty:            1944 kB
Writeback:           0 kB
AnonPages:       13028 kB
Mapped:           9416 kB
Slab:            45820 kB
PageTables:       4012 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   184760 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= 62536 MiB
End job on node017 at 2010-06-16 02:35:33