Trace number 3266229

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
SApperloT 2011-03-23UNSAT 6.79996 6.79986

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3900_3900_060.shuffled.cnf
MD5SUM8fb426184fc34ee36ee1bb5e07551b2d
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.369943
Satisfiable
(Un)Satisfiability was proved
Number of variables60
Number of clauses936
Sum of the clauses size4520
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 37
Number of clauses of size 4146
Number of clauses of size 5783
Number of clauses of size over 50

Solver Data 

6.69/6.79	
6.69/6.79	s UNSATISFIABLE
6.69/6.79	c Reason for Unsat: Learned empty clause

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3266229-1303582064/watcher-3266229-1303582064 -o /tmp/evaluation-result-3266229-1303582064/solver-3266229-1303582064 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3266229-1303582064.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.73 3.89 3.85 4/189 28298
/proc/meminfo: memFree=14713052/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=12012 CPUtime=0 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 409 0 0 0 0 0 0 0 25 0 1 0 450621769 12300288 346 33554432000 4194304 4465733 140735145455824 18446744073709551615 254261313655 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 3003 346 255 67 0 126 0

[startup+0.0976581 s]
/proc/loadavg: 3.73 3.89 3.85 4/189 28298
/proc/meminfo: memFree=14713052/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=12592 CPUtime=0.09 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 806 0 0 0 9 0 0 0 25 0 1 0 450621769 12894208 467 33554432000 4194304 4465733 140735145455824 18446744073709551615 4271200 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 3148 467 256 67 0 271 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12592

[startup+0.100647 s]
/proc/loadavg: 3.73 3.89 3.85 4/189 28298
/proc/meminfo: memFree=14713052/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=12592 CPUtime=0.09 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 808 0 0 0 9 0 0 0 25 0 1 0 450621769 12894208 469 33554432000 4194304 4465733 140735145455824 18446744073709551615 4266868 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 3148 469 256 67 0 271 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12592

[startup+0.300609 s]
/proc/loadavg: 3.73 3.89 3.85 4/189 28298
/proc/meminfo: memFree=14713052/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=13180 CPUtime=0.29 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 1254 0 0 0 29 0 0 0 25 0 1 0 450621769 13496320 573 33554432000 4194304 4465733 140735145455824 18446744073709551615 4277210 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 3295 573 256 67 0 418 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13180

[startup+0.700543 s]
/proc/loadavg: 3.73 3.89 3.85 4/189 28298
/proc/meminfo: memFree=14713052/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=13852 CPUtime=0.69 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 1791 0 0 0 69 0 0 0 25 0 1 0 450621769 14184448 725 33554432000 4194304 4465733 140735145455824 18446744073709551615 4295941 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 3463 725 256 67 0 586 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13852

[startup+1.5004 s]
/proc/loadavg: 3.73 3.89 3.85 5/190 28299
/proc/meminfo: memFree=14709596/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=14848 CPUtime=1.49 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 2563 0 0 0 149 0 0 0 25 0 1 0 450621769 15204352 911 33554432000 4194304 4465733 140735145455824 18446744073709551615 4270655 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 3712 911 256 67 0 835 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14848

[startup+3.10013 s]
/proc/loadavg: 3.75 3.89 3.85 5/190 28299
/proc/meminfo: memFree=14702900/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=16268 CPUtime=3.09 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 3897 0 0 0 309 0 0 0 25 0 1 0 450621769 16658432 1281 33554432000 4194304 4465733 140735145455824 18446744073709551615 4270655 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 4067 1281 280 67 0 1190 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16268

[startup+6.30055 s]
/proc/loadavg: 3.75 3.89 3.85 5/190 28299
/proc/meminfo: memFree=14699828/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=18188 CPUtime=6.29 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 4510 0 0 0 629 0 0 0 25 0 1 0 450621769 18624512 1854 33554432000 4194304 4465733 140735145455824 18446744073709551615 4295934 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 4547 1854 317 67 0 1670 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 18188

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

[startup+6.70049 s]
/proc/loadavg: 3.75 3.89 3.85 5/190 28299
/proc/meminfo: memFree=14699580/32951124 swapFree=67111528/67111528
[pid=28298] ppid=28296 vsize=18188 CPUtime=6.69 cores=1,3
/proc/28298/stat : 28298 (SApperloT) R 28296 28298 27245 0 -1 4202496 4510 0 0 0 669 0 0 0 25 0 1 0 450621769 18624512 1854 33554432000 4194304 4465733 140735145455824 18446744073709551615 4270655 0 0 4096 2 0 0 0 17 1 0 0 0
/proc/28298/statm: 4547 1854 317 67 0 1670 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 18188

Child status: 20
Real time (s): 6.79986
CPU time (s): 6.79996
CPU user time (s): 6.79197
CPU system time (s): 0.007998
CPU usage (%): 100.002
Max. virtual memory (cumulated for all children) (KiB): 21120

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.79197
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4515
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= 9

runsolver used 0.016997 second user time and 0.025996 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-23 20:07:44
IDJOB=3266229
IDBENCH=87444
IDSOLVER=1657
FILE ID=node140/3266229-1303582064
RUNJOBID= node140-1303582012-28094
PBS_JOBID= 13150322
Free space on /tmp= 72072 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_060.shuffled.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266229-1303582064/watcher-3266229-1303582064 -o /tmp/evaluation-result-3266229-1303582064/solver-3266229-1303582064 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3266229-1303582064.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=496164029

node140.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5226.14
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		: 2666.833
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	: 5332.75
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		: 2666.833
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		: 2666.833
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	: 5332.75
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		: 2666.833
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		: 2666.833
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		: 2666.833
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:      14713084 kB
Buffers:       2358484 kB
Cached:       15182000 kB
SwapCached:          0 kB
Active:       10221296 kB
Inactive:      7457756 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14713084 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             428 kB
Writeback:           0 kB
AnonPages:      137528 kB
Mapped:          15928 kB
Slab:           494580 kB
PageTables:       5144 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   328096 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= 72072 MiB
End job on node140 at 2011-04-23 20:07:51