Trace number 3095051

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 2011-03-03SAT 1.20282 1.20321

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S675112162-053.SATISFIABLE.cnf
MD5SUMb7db695fcb9141eaff8463a25c8e621f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.032994
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54450

Solver Data 

1.19/1.20	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
1.19/1.20	c input CNF file=HOME/instance-3095051-1301757020.cnf 
1.19/1.20	c Clause#=4450  var#=50  ratio=89 
1.19/1.20	c Simplified clause#=4450 
1.19/1.20	c XOR_varElimination deleted var#=0 clauses#=4450 
1.19/1.20	c inative var#=0 
1.19/1.20	c free var#=50  
1.19/1.20	c local search on 
1.19/1.20	c A solution found by local search 
1.19/1.20	c unfixed var#=0 var#=50 
1.19/1.20	c verified 
1.19/1.20	c 
1.19/1.20	s SATISFIABLE
1.19/1.20	v -1 -2 -3 4 5 6 -7 8 9 10 11 -12 13 14 15 16 -17 -18 19 -20 21 22 -23 -24 25 26 27 28 -29 -30 -31 32 33 -34 35 -36 -37 -38 -39 40 -41 -42 -43 -44 -45 46 47 -48 49 -50 
1.19/1.20	v 0
1.19/1.20	c 
1.19/1.20	c  Running time=1.200818

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3095051-1301757020/watcher-3095051-1301757020 -o /tmp/evaluation-result-3095051-1301757020/solver-3095051-1301757020 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095051-1301757020.cnf 

running on 2 cores: 4,6

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: 1.04 2.00 2.98 4/186 14932
/proc/meminfo: memFree=22479744/32951124 swapFree=67111528/67111528
[pid=14932] ppid=14930 vsize=3068 CPUtime=0 cores=4,6
/proc/14932/stat : 14932 (MPhaseSAT64) R 14930 14932 13645 0 -1 4202496 333 0 0 0 0 0 0 0 25 0 1 0 268117590 3141632 272 33554432000 134512640 134761588 4294231792 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14932/statm: 767 272 225 61 0 70 0

[startup+0.077154 s]
/proc/loadavg: 1.04 2.00 2.98 4/186 14932
/proc/meminfo: memFree=22479744/32951124 swapFree=67111528/67111528
[pid=14932] ppid=14930 vsize=4504 CPUtime=0.07 cores=4,6
/proc/14932/stat : 14932 (MPhaseSAT64) R 14930 14932 13645 0 -1 4202496 809 0 0 0 7 0 0 0 25 0 1 0 268117590 4612096 677 33554432000 134512640 134761588 4294231792 18446744073709551615 134632839 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14932/statm: 1126 677 259 61 0 429 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4504

[startup+0.10114 s]
/proc/loadavg: 1.04 2.00 2.98 4/186 14932
/proc/meminfo: memFree=22479744/32951124 swapFree=67111528/67111528
[pid=14932] ppid=14930 vsize=4504 CPUtime=0.09 cores=4,6
/proc/14932/stat : 14932 (MPhaseSAT64) R 14930 14932 13645 0 -1 4202496 809 0 0 0 9 0 0 0 25 0 1 0 268117590 4612096 677 33554432000 134512640 134761588 4294231792 18446744073709551615 134644664 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14932/statm: 1126 677 259 61 0 429 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4504

[startup+0.30111 s]
/proc/loadavg: 1.04 2.00 2.98 4/186 14932
/proc/meminfo: memFree=22479744/32951124 swapFree=67111528/67111528
[pid=14932] ppid=14930 vsize=4376 CPUtime=0.29 cores=4,6
/proc/14932/stat : 14932 (MPhaseSAT64) R 14930 14932 13645 0 -1 4202496 837 0 0 0 29 0 0 0 25 0 1 0 268117590 4481024 660 33554432000 134512640 134761588 4294231792 18446744073709551615 134747267 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14932/statm: 1094 660 274 61 0 397 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4376

[startup+0.701026 s]
/proc/loadavg: 1.04 2.00 2.98 4/186 14932
/proc/meminfo: memFree=22479744/32951124 swapFree=67111528/67111528
[pid=14932] ppid=14930 vsize=6800 CPUtime=0.69 cores=4,6
/proc/14932/stat : 14932 (MPhaseSAT64) R 14930 14932 13645 0 -1 4202496 1535 0 0 0 69 0 0 0 25 0 1 0 268117590 6963200 1266 33554432000 134512640 134761588 4294231792 18446744073709551615 134748099 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14932/statm: 1700 1266 274 61 0 1003 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6800

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

[startup+1.10594 s]
/proc/loadavg: 1.04 2.00 2.98 5/190 14939
/proc/meminfo: memFree=22471660/32951124 swapFree=67111528/67111528
[pid=14932] ppid=14930 vsize=6928 CPUtime=1.1 cores=4,6
/proc/14932/stat : 14932 (MPhaseSAT64) R 14930 14932 13645 0 -1 4202496 1634 0 0 0 110 0 0 0 25 0 1 0 268117590 7094272 1301 33554432000 134512640 134761588 4294231792 18446744073709551615 134605480 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14932/statm: 1732 1301 277 61 0 1035 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 6928

[startup+1.20092 s]
/proc/loadavg: 1.04 2.00 2.98 5/190 14939
/proc/meminfo: memFree=22471660/32951124 swapFree=67111528/67111528
[pid=14932] ppid=14930 vsize=3832 CPUtime=1.19 cores=4,6
/proc/14932/stat : 14932 (MPhaseSAT64) R 14930 14932 13645 0 -1 4202496 1635 0 0 0 119 0 0 0 25 0 1 0 268117590 3923968 527 33554432000 134512640 134761588 4294231792 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14932/statm: 958 527 277 61 0 261 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 3832

Child status: 10
Real time (s): 1.20321
CPU time (s): 1.20282
CPU user time (s): 1.19982
CPU system time (s): 0.002999
CPU usage (%): 99.9671
Max. virtual memory (cumulated for all children) (KiB): 6928

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.19982
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1644
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= 6
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node143 at 2011-04-02 17:10:20
IDJOB=3095051
IDBENCH=82933
IDSOLVER=1521
FILE ID=node143/3095051-1301757020
RUNJOBID= node143-1301757017-14762
PBS_JOBID= 12841038
Free space on /tmp= 72044 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S675112162-053.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095051-1301757020/watcher-3095051-1301757020 -o /tmp/evaluation-result-3095051-1301757020/solver-3095051-1301757020 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095051-1301757020.cnf

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

MD5SUM BENCH= b7db695fcb9141eaff8463a25c8e621f
RANDOM SEED=1110908632

node143.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		: 2666.846
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	: 5333.69
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		: 2666.846
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		: 2666.846
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		: 2666.846
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		: 2666.846
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		: 2666.846
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		: 2666.846
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	: 5332.74
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		: 2666.846
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:      22480000 kB
Buffers:        353928 kB
Cached:        9786620 kB
SwapCached:          0 kB
Active:        6961968 kB
Inactive:      3249604 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22480000 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1192 kB
Writeback:           0 kB
AnonPages:       71000 kB
Mapped:          17112 kB
Slab:           195884 kB
PageTables:       5316 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   234908 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= 72040 MiB
End job on node143 at 2011-04-02 17:10:21