Trace number 3263987

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
MPhaseSAT64 2011-03-03UNSAT 3.47147 3.47236

General information on the benchmark

NameSAT03/handmade/bevan/cnf/
marg3x3add8ch.shuffled-as.sat03-1448.cnf
MD5SUMe5a54c3916792cf58c449b6e5b243188
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.000999
Satisfiable
(Un)Satisfiability was proved
Number of variables41
Number of clauses272
Sum of the clauses size1424
Maximum clause length6
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 316
Number of clauses of size 432
Number of clauses of size 596
Number of clauses of size over 5128

Solver Data 

3.39/3.47	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
3.39/3.47	c input CNF file=HOME/instance-3263987-1303566013.cnf 
3.39/3.47	c Clause#=272  var#=41  ratio=6 
3.39/3.47	c Simplified clause#=272 
3.39/3.47	c XOR_varElimination deleted var#=0 clauses#=272 
3.39/3.47	c inative var#=0 
3.39/3.47	c free var#=41  
3.39/3.47	c local search off 
3.39/3.47	c 
3.39/3.47	s UNSATISFIABLE
3.39/3.47	c 
3.39/3.47	c  Running time=3.469473

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-3263987-1303566013/watcher-3263987-1303566013 -o /tmp/evaluation-result-3263987-1303566013/solver-3263987-1303566013 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3263987-1303566013.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: 3.46 3.88 3.87 2/182 5559
/proc/meminfo: memFree=16280464/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=3064 CPUtime=0 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 374 0 0 0 0 0 0 0 23 0 1 0 468201690 3137536 314 33554432000 134512640 134761588 4287601616 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 766 315 265 61 0 69 0

[startup+0.099961 s]
/proc/loadavg: 3.46 3.88 3.87 2/182 5559
/proc/meminfo: memFree=16280464/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=3668 CPUtime=0.09 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 518 0 0 0 9 0 0 0 23 0 1 0 468201690 3756032 458 33554432000 134512640 134761588 4287601616 18446744073709551615 134748062 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 917 458 276 61 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3668

[startup+0.100928 s]
/proc/loadavg: 3.46 3.88 3.87 2/182 5559
/proc/meminfo: memFree=16280464/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=3668 CPUtime=0.09 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 518 0 0 0 9 0 0 0 23 0 1 0 468201690 3756032 458 33554432000 134512640 134761588 4287601616 18446744073709551615 134748283 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 917 458 276 61 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3668

[startup+0.300928 s]
/proc/loadavg: 3.46 3.88 3.87 2/182 5559
/proc/meminfo: memFree=16280464/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=5088 CPUtime=0.29 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 1001 0 0 0 29 0 0 0 25 0 1 0 468201690 5210112 845 33554432000 134512640 134761588 4287601616 18446744073709551615 134747252 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 1272 845 276 61 0 575 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5088

[startup+0.700854 s]
/proc/loadavg: 3.46 3.88 3.87 2/182 5559
/proc/meminfo: memFree=16280464/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=6264 CPUtime=0.69 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 1134 0 0 0 69 0 0 0 25 0 1 0 468201690 6414336 946 33554432000 134512640 134761588 4287601616 18446744073709551615 134747168 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 1566 946 277 61 0 869 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6264

[startup+1.50071 s]
/proc/loadavg: 3.46 3.88 3.87 5/190 5597
/proc/meminfo: memFree=16262668/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=7672 CPUtime=1.49 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 1654 0 0 0 149 0 0 0 25 0 1 0 468201690 7856128 1267 33554432000 134512640 134761588 4287601616 18446744073709551615 134748267 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 1918 1267 277 61 0 1221 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7672

[startup+3.10042 s]
/proc/loadavg: 3.46 3.88 3.87 5/190 5597
/proc/meminfo: memFree=16257188/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=7772 CPUtime=3.09 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 1988 0 0 0 309 0 0 0 25 0 1 0 468201690 7958528 1356 33554432000 134512640 134761588 4287601616 18446744073709551615 134747179 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 1943 1356 277 61 0 1246 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7772

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

[startup+3.30638 s]
/proc/loadavg: 3.50 3.89 3.87 5/190 5597
/proc/meminfo: memFree=16255328/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=7516 CPUtime=3.3 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 1990 0 0 0 330 0 0 0 25 0 1 0 468201690 7696384 1292 33554432000 134512640 134761588 4287601616 18446744073709551615 134747254 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 1879 1292 277 61 0 1182 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 7516

[startup+3.40036 s]
/proc/loadavg: 3.50 3.89 3.87 5/190 5597
/proc/meminfo: memFree=16255328/32951124 swapFree=67111528/67111528
[pid=5559] ppid=5557 vsize=7516 CPUtime=3.39 cores=5,7
/proc/5559/stat : 5559 (MPhaseSAT64) R 5557 5559 4424 0 -1 4202496 1990 0 0 0 339 0 0 0 25 0 1 0 468201690 7696384 1292 33554432000 134512640 134761588 4287601616 18446744073709551615 134683242 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/5559/statm: 1879 1292 277 61 0 1182 0
Current children cumulated CPU time (s) 3.39
Current children cumulated vsize (KiB) 7516

Child status: 20
Real time (s): 3.47236
CPU time (s): 3.47147
CPU user time (s): 3.46647
CPU system time (s): 0.004999
CPU usage (%): 99.9745
Max. virtual memory (cumulated for all children) (KiB): 8028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.46647
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2000
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= 7
involuntary context switches= 3

runsolver used 0.007998 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node106 at 2011-04-23 15:40:13
IDJOB=3263987
IDBENCH=84096
IDSOLVER=1521
FILE ID=node106/3263987-1303566013
RUNJOBID= node106-1303566013-5530
PBS_JOBID= 13150277
Free space on /tmp= 71744 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT03/handmade/bevan/cnf/marg3x3add8ch.shuffled-as.sat03-1448.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3263987-1303566013/watcher-3263987-1303566013 -o /tmp/evaluation-result-3263987-1303566013/solver-3263987-1303566013 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3263987-1303566013.cnf

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

MD5SUM BENCH= e5a54c3916792cf58c449b6e5b243188
RANDOM SEED=480230363

node106.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		: 2666.830
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		: 2666.830
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	: 5226.20
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		: 2666.830
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		: 2666.830
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	: 5332.82
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		: 2666.830
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	: 5332.74
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      16280720 kB
Buffers:       1982404 kB
Cached:       14062180 kB
SwapCached:          0 kB
Active:        9611788 kB
Inactive:      6498556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16280720 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1308 kB
Writeback:          40 kB
AnonPages:       65912 kB
Mapped:          15944 kB
Slab:           496540 kB
PageTables:       5048 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   232976 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= 71744 MiB
End job on node106 at 2011-04-23 15:40:16