Trace number 3263986

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
MPhaseSAT 2011-02-15UNSAT 4.21036 4.21258

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 

4.19/4.21	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
4.19/4.21	c input CNF file=HOME/instance-3263986-1303571938.cnf 
4.19/4.21	c Clause#=272  var#=41  ratio=6 
4.19/4.21	c Simplified clause#=272 
4.19/4.21	c XOR_varElimination deleted var#=0 clauses#=272 
4.19/4.21	c inative var#=0 
4.19/4.21	c free var#=41  
4.19/4.21	c local search off 
4.19/4.21	c height=10 age=69 
4.19/4.21	c 
4.19/4.21	s UNSATISFIABLE
4.19/4.21	c 
4.19/4.21	c  Running time=4.209360

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-3263986-1303571938/watcher-3263986-1303571938 -o /tmp/evaluation-result-3263986-1303571938/solver-3263986-1303571938 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3263986-1303571938.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: 3.73 3.95 3.98 8/184 12689
/proc/meminfo: memFree=11908348/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=3036 CPUtime=0 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 374 0 0 0 0 0 0 0 17 0 1 0 449609626 3108864 314 33554432000 134512640 134731564 4287545632 18446744073709551615 134690976 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 759 314 263 54 0 69 0

[startup+0.021658 s]
/proc/loadavg: 3.73 3.95 3.98 8/184 12689
/proc/meminfo: memFree=11908348/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=3168 CPUtime=0.01 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 397 0 0 0 1 0 0 0 17 0 1 0 449609626 3244032 337 33554432000 134512640 134731564 4287545632 18446744073709551615 134655391 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 792 337 270 54 0 102 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3168

[startup+0.10068 s]
/proc/loadavg: 3.73 3.95 3.98 8/184 12689
/proc/meminfo: memFree=11908348/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=3432 CPUtime=0.09 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 485 0 0 0 9 0 0 0 17 0 1 0 449609626 3514368 425 33554432000 134512640 134731564 4287545632 18446744073709551615 134667437 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 858 425 270 54 0 168 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3432

[startup+0.300643 s]
/proc/loadavg: 3.73 3.95 3.98 8/184 12689
/proc/meminfo: memFree=11908348/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=3728 CPUtime=0.29 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 555 0 0 0 29 0 0 0 18 0 1 0 449609626 3817472 495 33554432000 134512640 134731564 4287545632 18446744073709551615 134614658 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 932 495 270 54 0 242 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3728

[startup+0.700571 s]
/proc/loadavg: 3.73 3.95 3.98 8/184 12689
/proc/meminfo: memFree=11908348/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=4000 CPUtime=0.69 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 606 0 0 0 69 0 0 0 18 0 1 0 449609626 4096000 546 33554432000 134512640 134731564 4287545632 18446744073709551615 134719994 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 1000 546 270 54 0 310 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4000

[startup+1.50043 s]
/proc/loadavg: 3.73 3.95 3.98 6/190 12725
/proc/meminfo: memFree=11893576/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=4048 CPUtime=1.49 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 653 0 0 0 149 0 0 0 19 0 1 0 449609626 4145152 577 33554432000 134512640 134731564 4287545632 18446744073709551615 134620761 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 1012 577 270 54 0 322 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4048

[startup+3.10014 s]
/proc/loadavg: 3.75 3.95 3.98 6/190 12725
/proc/meminfo: memFree=11891668/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=4012 CPUtime=3.09 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 653 0 0 0 309 0 0 0 25 0 1 0 449609626 4108288 571 33554432000 134512640 134731564 4287545632 18446744073709551615 134720151 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 1003 571 270 54 0 313 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4012

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

[startup+3.901 s]
/proc/loadavg: 3.75 3.95 3.98 6/190 12725
/proc/meminfo: memFree=11890924/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=4244 CPUtime=3.89 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 690 0 0 0 389 0 0 0 25 0 1 0 449609626 4345856 608 33554432000 134512640 134731564 4287545632 18446744073709551615 134720151 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 1061 608 270 54 0 371 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 4244

[startup+4.10096 s]
/proc/loadavg: 3.75 3.95 3.98 6/190 12725
/proc/meminfo: memFree=11890924/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=4388 CPUtime=4.09 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 719 0 0 0 409 0 0 0 25 0 1 0 449609626 4493312 637 33554432000 134512640 134731564 4287545632 18446744073709551615 134659320 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 1097 637 270 54 0 407 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 4388

[startup+4.20094 s]
/proc/loadavg: 3.75 3.95 3.98 6/190 12725
/proc/meminfo: memFree=11890924/32951124 swapFree=67111528/67111528
[pid=12687] ppid=12681 vsize=4532 CPUtime=4.19 cores=5,7
/proc/12687/stat : 12687 (MPhaseSAT) R 12681 12687 12042 0 -1 4202496 749 0 0 0 419 0 0 0 25 0 1 0 449609626 4640768 667 33554432000 134512640 134731564 4287545632 18446744073709551615 134659744 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12687/statm: 1133 667 270 54 0 443 0
Current children cumulated CPU time (s) 4.19
Current children cumulated vsize (KiB) 4532

Child status: 20
Real time (s): 4.21258
CPU time (s): 4.21036
CPU user time (s): 4.20936
CPU system time (s): 0.000999
CPU usage (%): 99.9473
Max. virtual memory (cumulated for all children) (KiB): 4532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.20936
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 758
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= 16
involuntary context switches= 3

runsolver used 0.007998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node145 at 2011-04-23 17:18:58
IDJOB=3263986
IDBENCH=84096
IDSOLVER=1520
FILE ID=node145/3263986-1303571938
RUNJOBID= node145-1303571937-12657
PBS_JOBID= 13150286
Free space on /tmp= 71336 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT03/handmade/bevan/cnf/marg3x3add8ch.shuffled-as.sat03-1448.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3263986-1303571938/watcher-3263986-1303571938 -o /tmp/evaluation-result-3263986-1303571938/solver-3263986-1303571938 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3263986-1303571938.cnf

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

MD5SUM BENCH= e5a54c3916792cf58c449b6e5b243188
RANDOM SEED=1333137176

node145.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		: 2666.786
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	: 5333.57
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		: 2666.786
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	: 5332.76
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		: 2666.786
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	: 5332.74
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		: 2666.786
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	: 5332.83
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		: 2666.786
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		: 2666.786
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		: 2666.786
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	: 5332.84
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		: 2666.786
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	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      11909196 kB
Buffers:       2167628 kB
Cached:       18241664 kB
SwapCached:          0 kB
Active:       10164688 kB
Inactive:     10308992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      11909196 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             612 kB
Writeback:           0 kB
AnonPages:       64000 kB
Mapped:          14488 kB
Slab:           505256 kB
PageTables:       4848 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   189064 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= 71336 MiB
End job on node145 at 2011-04-23 17:19:02