Trace number 3371580

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
Lingeling 587f (fixed)UNSAT 5.9131 5.91352

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 

5.89/5.91	s UNSATISFIABLE

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: 961)

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-3371580-1305435915/watcher-3371580-1305435915 -o /tmp/evaluation-result-3371580-1305435915/solver-3371580-1305435915 -C 2400 -W 1300 -M 7680 lingeling HOME/instance-3371580-1305435915.cnf 

running on 2 cores: 5,7

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: 4.00 4.03 4.45 4/307 30643
/proc/meminfo: memFree=27383852/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=6712 CPUtime=0 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 248 0 0 0 0 0 0 0 25 0 1 0 655190002 6873088 190 33554432000 4194304 4409284 140734991109024 18446744073709551615 4243014 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 1678 190 132 53 0 101 0

[startup+0.050929 s]
/proc/loadavg: 4.00 4.03 4.45 4/307 30643
/proc/meminfo: memFree=27383852/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=7076 CPUtime=0.04 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 360 0 0 0 4 0 0 0 25 0 1 0 655190002 7245824 302 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 1769 302 138 53 0 192 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 7076

[startup+0.10092 s]
/proc/loadavg: 4.00 4.03 4.45 4/307 30643
/proc/meminfo: memFree=27383852/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=7076 CPUtime=0.09 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 398 0 0 0 9 0 0 0 25 0 1 0 655190002 7245824 308 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 1769 308 139 53 0 192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7076

[startup+0.300899 s]
/proc/loadavg: 4.00 4.03 4.45 4/307 30643
/proc/meminfo: memFree=27383852/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=7252 CPUtime=0.29 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 790 0 0 0 28 1 0 0 25 0 1 0 655190002 7426048 357 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 1813 357 139 53 0 236 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7252

[startup+0.700836 s]
/proc/loadavg: 4.00 4.03 4.45 4/307 30643
/proc/meminfo: memFree=27383852/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=7856 CPUtime=0.69 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 1294 0 0 0 67 2 0 0 25 0 1 0 655190002 8044544 515 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 1964 515 139 53 0 387 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7856

[startup+1.50069 s]
/proc/loadavg: 4.00 4.03 4.45 5/308 30644
/proc/meminfo: memFree=27380760/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=7932 CPUtime=1.49 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 2403 0 0 0 143 6 0 0 25 0 1 0 655190002 8122368 534 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 1983 534 139 53 0 406 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7932

[startup+3.10042 s]
/proc/loadavg: 4.00 4.03 4.45 5/308 30644
/proc/meminfo: memFree=27377164/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=8628 CPUtime=3.09 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 4173 0 0 0 299 10 0 0 25 0 1 0 655190002 8835072 708 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 2157 708 139 53 0 580 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 8628

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

[startup+4.70016 s]
/proc/loadavg: 4.00 4.03 4.45 5/308 30644
/proc/meminfo: memFree=27369104/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=9256 CPUtime=4.69 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 5522 0 0 0 455 14 0 0 25 0 1 0 655190002 9478144 833 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 2314 833 139 53 0 737 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 9256

[startup+5.51102 s]
/proc/loadavg: 4.00 4.03 4.45 5/308 30644
/proc/meminfo: memFree=27368156/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=9072 CPUtime=5.5 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 5986 0 0 0 534 16 0 0 25 0 1 0 655190002 9289728 794 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 2268 794 139 53 0 691 0
Current children cumulated CPU time (s) 5.5
Current children cumulated vsize (KiB) 9072

[startup+5.90095 s]
/proc/loadavg: 4.00 4.03 4.45 5/308 30644
/proc/meminfo: memFree=27368156/32951124 swapFree=63649232/67111528
[pid=30643] ppid=30641 vsize=8936 CPUtime=5.89 cores=5,7
/proc/30643/stat : 30643 (lingeling) R 30641 30643 29991 0 -1 4202496 6226 0 0 0 572 17 0 0 25 0 1 0 655190002 9150464 760 33554432000 4194304 4409284 140734991109024 18446744073709551615 210204671895 0 0 4096 17506 0 0 0 17 5 0 0 0
/proc/30643/statm: 2234 760 139 53 0 657 0
Current children cumulated CPU time (s) 5.89
Current children cumulated vsize (KiB) 8936

Child status: 20
Real time (s): 5.91352
CPU time (s): 5.9131
CPU user time (s): 5.73913
CPU system time (s): 0.173973
CPU usage (%): 99.9928
Max. virtual memory (cumulated for all children) (KiB): 10280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.73913
system time used= 0.173973
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6229
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= 2
involuntary context switches= 4

runsolver used 0.018997 second user time and 0.042993 second system time

The end

Launcher Data 

Begin job on node130 at 2011-05-15 07:05:15
IDJOB=3371580
IDBENCH=87444
IDSOLVER=1849
FILE ID=node130/3371580-1305435915
RUNJOBID= node130-1305434510-30012
PBS_JOBID= 13324695
Free space on /tmp= 73440 MiB

SOLVER NAME= Lingeling 587f (fixed)
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_060.shuffled.cnf
COMMAND LINE= lingeling BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3371580-1305435915/watcher-3371580-1305435915 -o /tmp/evaluation-result-3371580-1305435915/solver-3371580-1305435915 -C 2400 -W 1300 -M 7680  lingeling HOME/instance-3371580-1305435915.cnf

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

MD5SUM BENCH= 8fb426184fc34ee36ee1bb5e07551b2d
RANDOM SEED=1914049800

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5332.83
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		: 2666.838
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		: 2666.838
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	: 5332.81
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		: 2666.838
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		: 2666.838
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	: 5332.83
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		: 2666.838
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      27384116 kB
Buffers:        273976 kB
Cached:        3773348 kB
SwapCached:      10248 kB
Active:        1528172 kB
Inactive:      3767124 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      27384116 kB
SwapTotal:    67111528 kB
SwapFree:     63649232 kB
Dirty:             428 kB
Writeback:           0 kB
AnonPages:     1245428 kB
Mapped:          14220 kB
Slab:           183520 kB
PageTables:      26228 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 51714252 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= 73440 MiB
End job on node130 at 2011-05-15 07:05:21