Trace number 3274751

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
SAT07 reference solver: minisat SAT 2007UNSAT 0.513921 0.513479

General information on the benchmark

NameSAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/
grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
MD5SUM384c65902b197ca2c64d2ee8a3c64089
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.374942
Satisfiable
(Un)Satisfiability was proved
Number of variables62750
Number of clauses124752
Sum of the clauses size498502
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2250
Number of clauses of size 30
Number of clauses of size 4124500
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  62750                                                |
0.00/0.00	c |  Number of clauses:    124752                                               |
0.09/0.19	c |  Parsing time:         0.18         s                                       |
0.49/0.51	c restarts              : 0
0.49/0.51	c conflicts             : 0              (0 /sec)
0.49/0.51	c decisions             : 0              ( nan % random) (0 /sec)
0.49/0.51	c propagations          : 4              (8 /sec)
0.49/0.51	c conflict literals     : 0              ( nan % deleted)
0.49/0.51	c Memory used           : 29.29 MB
0.49/0.51	c CPU time              : 0.502923 s
0.49/0.51	c 
0.49/0.51	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: 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-3274751-1303609867/watcher-3274751-1303609867 -o /tmp/evaluation-result-3274751-1303609867/solver-3274751-1303609867 -C 2400 -W 1300 -M 7680 --output-limit 1,15 HOME/minisat_noassertions HOME/instance-3274751-1303609867.cnf 

running on 2 cores: 0,2

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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.99 3.77 3.91 3/181 13951
/proc/meminfo: memFree=14173128/32950928 swapFree=67111524/67111528
[pid=13951] ppid=13949 vsize=6164 CPUtime=0 cores=0,2
/proc/13951/stat : 13951 (minisat_noasser) R 13949 13951 13907 0 -1 4202496 1284 0 0 0 0 0 0 0 25 0 1 0 551217372 6311936 1224 33554432000 134512640 135048876 4286751584 18446744073709551615 134524854 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/13951/statm: 1541 1225 49 131 0 1408 0

[startup+0.0561849 s]
/proc/loadavg: 2.99 3.77 3.91 3/181 13951
/proc/meminfo: memFree=14173128/32950928 swapFree=67111524/67111528
[pid=13951] ppid=13949 vsize=13152 CPUtime=0.05 cores=0,2
/proc/13951/stat : 13951 (minisat_noasser) R 13949 13951 13907 0 -1 4202496 2767 0 0 0 5 0 0 0 25 0 1 0 551217372 13467648 2706 33554432000 134512640 135048876 4286751584 18446744073709551615 134530821 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/13951/statm: 3288 2707 50 131 0 3155 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 13152

[startup+0.101183 s]
/proc/loadavg: 2.99 3.77 3.91 3/181 13951
/proc/meminfo: memFree=14173128/32950928 swapFree=67111524/67111528
[pid=13951] ppid=13949 vsize=15400 CPUtime=0.09 cores=0,2
/proc/13951/stat : 13951 (minisat_noasser) R 13949 13951 13907 0 -1 4202496 3292 0 0 0 9 0 0 0 25 0 1 0 551217372 15769600 3231 33554432000 134512640 135048876 4286751584 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/13951/statm: 3850 3232 50 131 0 3717 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15400

[startup+0.301143 s]
/proc/loadavg: 2.99 3.77 3.91 3/181 13951
/proc/meminfo: memFree=14173128/32950928 swapFree=67111524/67111528
[pid=13951] ppid=13949 vsize=22100 CPUtime=0.29 cores=0,2
/proc/13951/stat : 13951 (minisat_noasser) R 13949 13951 13907 0 -1 4202496 4934 0 0 0 29 0 0 0 25 0 1 0 551217372 22630400 4873 33554432000 134512640 135048876 4286751584 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/13951/statm: 5525 4873 62 131 0 5392 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 22100

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

[startup+0.501109 s]
/proc/loadavg: 2.99 3.77 3.91 3/181 13951
/proc/meminfo: memFree=14173128/32950928 swapFree=67111524/67111528
[pid=13951] ppid=13949 vsize=28980 CPUtime=0.49 cores=0,2
/proc/13951/stat : 13951 (minisat_noasser) R 13949 13951 13907 0 -1 4202496 6657 0 0 0 49 0 0 0 25 0 1 0 551217372 29675520 6596 33554432000 134512640 135048876 4286751584 18446744073709551615 134683871 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/13951/statm: 7245 6596 62 131 0 7112 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 28980

Child status: 20
Real time (s): 0.513479
CPU time (s): 0.513921
CPU user time (s): 0.502923
CPU system time (s): 0.010998
CPU usage (%): 100.086
Max. virtual memory (cumulated for all children) (KiB): 28980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.502923
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6757
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= 7

runsolver used 0 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node115 at 2011-04-24 03:51:07
IDJOB=3274751
IDBENCH=85572
IDSOLVER=1676
FILE ID=node115/3274751-1303609867
RUNJOBID= node115-1303609867-13925
PBS_JOBID= 13150629
Free space on /tmp= 72436 MiB

SOLVER NAME= SAT07 reference solver: minisat SAT 2007
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= HOME/minisat_noassertions BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3274751-1303609867/watcher-3274751-1303609867 -o /tmp/evaluation-result-3274751-1303609867/solver-3274751-1303609867 -C 2400 -W 1300 -M 7680 --output-limit 1,15  HOME/minisat_noassertions HOME/instance-3274751-1303609867.cnf

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

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=1296302380

node115.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		: 2666.811
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	: 5333.62
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		: 2666.811
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		: 2666.811
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		: 2666.811
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		: 2666.811
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	: 5332.77
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		: 2666.811
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		: 2666.811
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		: 2666.811
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      14173524 kB
Buffers:       2282672 kB
Cached:       15868232 kB
SwapCached:          4 kB
Active:        7317844 kB
Inactive:     10904892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      14173524 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            8532 kB
Writeback:          48 kB
AnonPages:       71084 kB
Mapped:          15556 kB
Slab:           489360 kB
PageTables:       5412 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   216784 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= 72412 MiB
End job on node115 at 2011-04-24 03:51:08