Trace number 3461027

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 NameAnswerCPU timeWall clock time
wbo 1.6UNSAT 1.20881 1.20883

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110970444.opb
MD5SUM547c52f23b294fa7872c44b68fb45037
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.06099
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1239
Number of bits of the biggest sum of numbers11
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 wbo 1.6 beta - 20110321
0.00/0.00	c Parsing opb file format. File HOME/instance-3461027-1307067683.opb.
0.00/0.00	c Instance file HOME/instance-3461027-1307067683.opb
0.00/0.00	c File size is 9903 bytes.
0.00/0.00	c Highest Coefficient sum: 1239
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Parsing time:          0.00         s                                      |
0.00/0.00	c |  Number Variables:      169                                                 |
0.00/0.00	c |  Number Clauses:        30                                                  |
0.00/0.00	c |  Number Cardinality:    70                                                  |
0.00/0.00	c |  Number PB Constraints: 1                                                   |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     169      101     1205 |     5000        0   -nan |  0.000 % |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |     169      101     1205 |     5000        0   -nan |  0.000 % |
0.00/0.00	c |       105 |     169      101     1205 |     5500      105     16 |  0.004 % |
0.00/0.00	c |       256 |     169      101     1205 |     6050      256     18 |  0.004 % |
0.00/0.00	c |       483 |     169      101     1205 |     6655      483     22 |  0.004 % |
0.00/0.01	c |       820 |     169      101     1205 |     7320      820     23 |  0.004 % |
0.00/0.02	c |      1326 |     169      101     1205 |     8052     1326     21 |  0.004 % |
0.00/0.04	c |      2087 |     169      101     1205 |     8857     2087     22 |  0.004 % |
0.00/0.07	c |      3227 |     169      101     1205 |     9743     3227     22 |  0.004 % |
0.09/0.11	c |      4935 |     169      101     1205 |    10717     4935     20 |  0.004 % |
0.19/0.20	c |      7497 |     169      101     1205 |    11789     7497     20 |  0.004 % |
0.29/0.35	c |     11345 |     169      101     1205 |    12968    11345     19 |  0.004 % |
0.49/0.57	c |     17112 |     169      101     1205 |    14265    10578     19 |  0.004 % |
0.89/0.95	c |     25763 |     169      101     1205 |    15692    12053     16 |  0.004 % |
1.19/1.20	c ===============================================================================
1.19/1.20	c core #1
1.19/1.20	c 
1.19/1.20	c 
1.19/1.20	c Core size: 12	Core Weight: 2147483647	Total Weight: 2147483647
1.19/1.20	c Current CPU time: 1.17982 s
1.19/1.20	c
1.19/1.20	s UNSATISFIABLE
1.19/1.20	c Total CPU time: 1.17982 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3461027-1307067683/watcher-3461027-1307067683 -o /tmp/evaluation-result-3461027-1307067683/solver-3461027-1307067683 -C 1800 -W 1900 -M 15500 wbo1.6 -file-format=opb -time-limit=1800 HOME/instance-3461027-1307067683.opb 

running on 4 cores: 0,2,4,6

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): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 1.97 2/400 21074
/proc/meminfo: memFree=30183792/32950904 swapFree=56615552/67111528
[pid=21074] ppid=21072 vsize=2236 CPUtime=0.01 cores=0,2,4,6
/proc/21074/stat : 21074 (wbo1.6) R 21072 21074 19672 0 -1 4202496 351 0 0 0 1 0 0 0 25 0 1 0 818368027 2289664 301 33554432000 4194304 5714214 140735301432016 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/21074/statm: 559 301 180 372 0 184 0

[startup+0.097586 s]
/proc/loadavg: 2.00 2.00 1.97 2/400 21074
/proc/meminfo: memFree=30183792/32950904 swapFree=56615552/67111528
[pid=21074] ppid=21072 vsize=3164 CPUtime=0.09 cores=0,2,4,6
/proc/21074/stat : 21074 (wbo1.6) R 21072 21074 19672 0 -1 4202496 581 0 0 0 9 0 0 0 25 0 1 0 818368027 3239936 531 33554432000 4194304 5714214 140735301432016 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/21074/statm: 791 532 180 372 0 416 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3164

[startup+0.100586 s]
/proc/loadavg: 2.00 2.00 1.97 2/400 21074
/proc/meminfo: memFree=30183792/32950904 swapFree=56615552/67111528
[pid=21074] ppid=21072 vsize=3164 CPUtime=0.09 cores=0,2,4,6
/proc/21074/stat : 21074 (wbo1.6) R 21072 21074 19672 0 -1 4202496 589 0 0 0 9 0 0 0 25 0 1 0 818368027 3239936 539 33554432000 4194304 5714214 140735301432016 18446744073709551615 4319347 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/21074/statm: 791 539 180 372 0 416 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3164

[startup+0.300599 s]
/proc/loadavg: 2.00 2.00 1.97 2/400 21074
/proc/meminfo: memFree=30183792/32950904 swapFree=56615552/67111528
[pid=21074] ppid=21072 vsize=4676 CPUtime=0.29 cores=0,2,4,6
/proc/21074/stat : 21074 (wbo1.6) R 21072 21074 19672 0 -1 4202496 966 0 0 0 29 0 0 0 25 0 1 0 818368027 4788224 916 33554432000 4194304 5714214 140735301432016 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/21074/statm: 1169 916 180 372 0 794 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4676

[startup+0.700593 s]
/proc/loadavg: 2.00 2.00 1.97 2/400 21074
/proc/meminfo: memFree=30183792/32950904 swapFree=56615552/67111528
[pid=21074] ppid=21072 vsize=6280 CPUtime=0.69 cores=0,2,4,6
/proc/21074/stat : 21074 (wbo1.6) R 21072 21074 19672 0 -1 4202496 1369 0 0 0 68 1 0 0 25 0 1 0 818368027 6430720 1319 33554432000 4194304 5714214 140735301432016 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/21074/statm: 1570 1319 180 372 0 1195 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6280

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

[startup+1.11451 s]
/proc/loadavg: 2.00 2.00 1.97 3/401 21075
/proc/meminfo: memFree=30177020/32950904 swapFree=56615552/67111528
[pid=21074] ppid=21072 vsize=7756 CPUtime=1.11 cores=0,2,4,6
/proc/21074/stat : 21074 (wbo1.6) R 21072 21074 19672 0 -1 4202496 1717 0 0 0 109 2 0 0 25 0 1 0 818368027 7942144 1667 33554432000 4194304 5714214 140735301432016 18446744073709551615 4347195 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/21074/statm: 1939 1667 180 372 0 1564 0
Current children cumulated CPU time (s) 1.11
Current children cumulated vsize (KiB) 7756

[startup+1.2005 s]
/proc/loadavg: 2.00 2.00 1.97 3/401 21075
/proc/meminfo: memFree=30177020/32950904 swapFree=56615552/67111528
[pid=21074] ppid=21072 vsize=7756 CPUtime=1.19 cores=0,2,4,6
/proc/21074/stat : 21074 (wbo1.6) R 21072 21074 19672 0 -1 4202496 1718 0 0 0 117 2 0 0 25 0 1 0 818368027 7942144 1668 33554432000 4194304 5714214 140735301432016 18446744073709551615 5070807 0 0 4096 3 0 0 0 17 4 0 0 0
/proc/21074/statm: 1939 1668 180 372 0 1564 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 7756

Child status: 0
Real time (s): 1.20883
CPU time (s): 1.20881
CPU user time (s): 1.17982
CPU system time (s): 0.028995
CPU usage (%): 99.9991
Max. virtual memory (cumulated for all children) (KiB): 7756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.17982
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1719
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= 1

runsolver used 0.009998 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node121 at 2011-06-03 04:21:23
IDJOB=3461027
IDBENCH=1174
IDSOLVER=1953
FILE ID=node121/3461027-1307067683
RUNJOBID= node121-1307065826-20255
PBS_JOBID= 13497865
Free space on /tmp= 73948 MiB

SOLVER NAME= wbo 1.6
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110970444.opb
COMMAND LINE= wbo1.6 -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3461027-1307067683/watcher-3461027-1307067683 -o /tmp/evaluation-result-3461027-1307067683/solver-3461027-1307067683 -C 1800 -W 1900 -M 15500  wbo1.6 -file-format=opb -time-limit=1800 HOME/instance-3461027-1307067683.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 547c52f23b294fa7872c44b68fb45037
RANDOM SEED=1410916252

node121.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	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.63
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.07
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.817
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950904 kB
MemFree:      30184072 kB
Buffers:        254900 kB
Cached:         361644 kB
SwapCached:       9896 kB
Active:        2161524 kB
Inactive:       347764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950904 kB
LowFree:      30184072 kB
SwapTotal:    67111528 kB
SwapFree:     56615552 kB
Dirty:            4608 kB
Writeback:           0 kB
AnonPages:     1889656 kB
Mapped:          13816 kB
Slab:           140120 kB
PageTables:      51956 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586980 kB
Committed_AS: 83571876 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73944 MiB
End job on node121 at 2011-06-03 04:21:24