Trace number 3468368

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
clasp 2.0-R4191UNSAT 0.707891 0.708957

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110974372.opb
MD5SUMc554a2f9e460ec54fba106ea9f102f78
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 benchmark0.018996
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 1266
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 clasp version 2.0.0-RC2
0.00/0.00	c Reading from ...068947/instance-3468368-1307068947.opb
0.00/0.00	c Solving...
0.69/0.70	s UNSATISFIABLE
0.69/0.70	
0.69/0.70	c Models        : 0     
0.69/0.70	c Time          : 0.706s (Solving: 0.71s 1st Model: 0.00s Unsat: 0.71s)
0.69/0.70	c CPU Time      : 0.700s

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-3468368-1307068947/watcher-3468368-1307068947 -o /tmp/evaluation-result-3468368-1307068947/solver-3468368-1307068947 -C 1800 -W 1900 -M 15500 HOME/clasp HOME/instance-3468368-1307068947.opb --berk-max=512 --berk-once --otfs=1 --recursive-str --dinit=1500,10000 --dsched=10000,1.1,20000 --restart-on-model --opt-heu=2 

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: 1.81 1.28 1.10 3/481 400
/proc/meminfo: memFree=27103092/32951124 swapFree=38422276/67111528
[pid=400] ppid=398 vsize=12304 CPUtime=0 cores=0,2,4,6
/proc/400/stat : 400 (clasp) R 398 400 30895 0 -1 4194304 301 0 0 0 0 0 0 0 25 0 1 0 818497045 12599296 241 33554432000 4194304 4933572 140734542402208 18446744073709551615 212435375040 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/400/statm: 3076 247 212 181 0 85 0

[startup+0.066704 s]
/proc/loadavg: 1.81 1.28 1.10 3/481 400
/proc/meminfo: memFree=27103092/32951124 swapFree=38422276/67111528
[pid=400] ppid=398 vsize=12572 CPUtime=0.06 cores=0,2,4,6
/proc/400/stat : 400 (clasp) R 398 400 30895 0 -1 4202496 557 0 0 0 6 0 0 0 25 0 1 0 818497045 12873728 497 33554432000 4194304 4933572 140734542402208 18446744073709551615 4368936 0 0 4096 18946 0 0 0 17 2 0 0 0
/proc/400/statm: 3143 497 374 181 0 152 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12572

[startup+0.100719 s]
/proc/loadavg: 1.81 1.28 1.10 3/481 400
/proc/meminfo: memFree=27103092/32951124 swapFree=38422276/67111528
[pid=400] ppid=398 vsize=12572 CPUtime=0.09 cores=0,2,4,6
/proc/400/stat : 400 (clasp) R 398 400 30895 0 -1 4202496 568 0 0 0 9 0 0 0 25 0 1 0 818497045 12873728 508 33554432000 4194304 4933572 140734542402208 18446744073709551615 4719115 0 0 4096 18946 0 0 0 17 2 0 0 0
/proc/400/statm: 3143 508 374 181 0 152 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12572

[startup+0.300687 s]
/proc/loadavg: 1.81 1.28 1.10 3/481 400
/proc/meminfo: memFree=27103092/32951124 swapFree=38422276/67111528
[pid=400] ppid=398 vsize=12836 CPUtime=0.29 cores=0,2,4,6
/proc/400/stat : 400 (clasp) R 398 400 30895 0 -1 4202496 608 0 0 0 29 0 0 0 25 0 1 0 818497045 13144064 548 33554432000 4194304 4933572 140734542402208 18446744073709551615 4337280 0 0 4096 18946 0 0 0 17 2 0 0 0
/proc/400/statm: 3209 548 374 181 0 218 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12836

[startup+0.700618 s]
/proc/loadavg: 1.81 1.28 1.10 3/481 400
/proc/meminfo: memFree=27103092/32951124 swapFree=38422276/67111528
[pid=400] ppid=398 vsize=12968 CPUtime=0.69 cores=0,2,4,6
/proc/400/stat : 400 (clasp) R 398 400 30895 0 -1 4202496 651 0 0 0 69 0 0 0 25 0 1 0 818497045 13279232 591 33554432000 4194304 4933572 140734542402208 18446744073709551615 4664508 0 0 4096 18946 0 0 0 17 2 0 0 0
/proc/400/statm: 3242 591 374 181 0 251 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12968

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

Child status: 20
Real time (s): 0.708957
CPU time (s): 0.707891
CPU user time (s): 0.705892
CPU system time (s): 0.001999
CPU usage (%): 99.8496
Max. virtual memory (cumulated for all children) (KiB): 12968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.705892
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 667
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= 4

runsolver used 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node102 at 2011-06-03 04:42:27
IDJOB=3468368
IDBENCH=1196
IDSOLVER=1958
FILE ID=node102/3468368-1307068947
RUNJOBID= node102-1307068843-31940
PBS_JOBID= 13497886
Free space on /tmp= 73916 MiB

SOLVER NAME= clasp 2.0-R4191
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110974372.opb
COMMAND LINE= HOME/clasp BENCHNAME --berk-max=512 --berk-once --otfs=1 --recursive-str --dinit=1500,10000 --dsched=10000,1.1,20000 --restart-on-model --opt-heu=2 
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3468368-1307068947/watcher-3468368-1307068947 -o /tmp/evaluation-result-3468368-1307068947/solver-3468368-1307068947 -C 1800 -W 1900 -M 15500  HOME/clasp HOME/instance-3468368-1307068947.opb --berk-max=512 --berk-once --otfs=1 --recursive-str --dinit=1500,10000 --dsched=10000,1.1,20000 --restart-on-model --opt-heu=2 

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

MD5SUM BENCH= c554a2f9e460ec54fba106ea9f102f78
RANDOM SEED=1935058278

node102.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		: 2666.828
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	: 5333.65
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		: 2666.828
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	: 5226.15
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		: 2666.828
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	: 5332.82
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		: 2666.828
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	: 5332.75
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		: 2666.828
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		: 2666.828
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	: 5332.75
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		: 2666.828
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	: 5332.82
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		: 2666.828
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:     32951124 kB
MemFree:      27103248 kB
Buffers:        297176 kB
Cached:        1511188 kB
SwapCached:      86940 kB
Active:         822768 kB
Inactive:      4723488 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      27103248 kB
SwapTotal:    67111528 kB
SwapFree:     38422276 kB
Dirty:            1672 kB
Writeback:          20 kB
AnonPages:     3673420 kB
Mapped:          14292 kB
Slab:           132576 kB
PageTables:      99924 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 135490608 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= 73916 MiB
End job on node102 at 2011-06-03 04:42:28