Trace number 3375290

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 2011-05-14 (fixed)SAT 0.664898 0.66509

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v75-c1597-S445191369-092.SATISFIABLE.cnf
MD5SUMf7876d33ac32441ad4029f31e91e25a6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.002999
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses1597
Sum of the clauses size7985
Maximum clause length5
Minimum clause length5
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 51597
Number of clauses of size over 50

Solver Data 

0.59/0.66	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.59/0.66	c input CNF file=HOME/instance-3375290-1305450034.cnf 
0.59/0.66	c Clause#=1597  var#=75  ratio=21 
0.59/0.66	c Simplified clause#=1597 
0.59/0.66	c XOR_varElimination deleted var#=0 clauses#=1597 
0.59/0.66	c inative var#=0 
0.59/0.66	c free var#=75  
0.59/0.66	c local search on 
0.59/0.66	c A solution found by local search 
0.59/0.66	c unfixed var#=0 var#=75 
0.59/0.66	c verified 
0.59/0.66	c 
0.59/0.66	s SATISFIABLE
0.59/0.66	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 -51 -52 53 54 55 56 -57 -58 59 60 -61 62 -63 64 65 66 -67 -68 69 -70 71 -72 -73 -74 75 
0.59/0.66	v 0
0.59/0.66	c 
0.59/0.66	c  Running time=0.662899

Verifier Data 

OK

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-3375290-1305450034/watcher-3375290-1305450034 -o /tmp/evaluation-result-3375290-1305450034/solver-3375290-1305450034 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375290-1305450034.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: 3.99 3.72 3.77 4/361 13983
/proc/meminfo: memFree=26121168/32951124 swapFree=53501236/67111528
[pid=13983] ppid=13981 vsize=12168 CPUtime=0 cores=4,6
/proc/13983/stat : 13983 (MPhaseSAT64) R 13981 13983 13135 0 -1 4202496 429 0 0 0 0 0 0 0 25 0 1 0 656606064 12460032 368 33554432000 4194304 4479436 140734838612800 18446744073709551615 4266345 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13983/statm: 3042 368 282 70 0 162 0

[startup+0.100095 s]
/proc/loadavg: 3.99 3.72 3.77 4/361 13983
/proc/meminfo: memFree=26121168/32951124 swapFree=53501236/67111528
[pid=13983] ppid=13981 vsize=13040 CPUtime=0.09 cores=4,6
/proc/13983/stat : 13983 (MPhaseSAT64) R 13981 13983 13135 0 -1 4202496 708 0 0 0 9 0 0 0 25 0 1 0 656606064 13352960 647 33554432000 4194304 4479436 140734838612800 18446744073709551615 4451876 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13983/statm: 3260 647 325 70 0 380 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13040

[startup+0.20107 s]
/proc/loadavg: 3.99 3.72 3.77 4/361 13983
/proc/meminfo: memFree=26121168/32951124 swapFree=53501236/67111528
[pid=13983] ppid=13981 vsize=13948 CPUtime=0.19 cores=4,6
/proc/13983/stat : 13983 (MPhaseSAT64) R 13981 13983 13135 0 -1 4202496 951 0 0 0 19 0 0 0 25 0 1 0 656606064 14282752 890 33554432000 4194304 4479436 140734838612800 18446744073709551615 4451003 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13983/statm: 3487 890 325 70 0 607 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 13948

[startup+0.301051 s]
/proc/loadavg: 3.99 3.72 3.77 4/361 13983
/proc/meminfo: memFree=26121168/32951124 swapFree=53501236/67111528
[pid=13983] ppid=13981 vsize=14204 CPUtime=0.29 cores=4,6
/proc/13983/stat : 13983 (MPhaseSAT64) R 13981 13983 13135 0 -1 4202496 1031 0 0 0 29 0 0 0 25 0 1 0 656606064 14544896 970 33554432000 4194304 4479436 140734838612800 18446744073709551615 4451967 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13983/statm: 3551 970 325 70 0 671 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14204

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

[startup+0.401032 s]
/proc/loadavg: 3.99 3.72 3.77 4/361 13983
/proc/meminfo: memFree=26121168/32951124 swapFree=53501236/67111528
[pid=13983] ppid=13981 vsize=14208 CPUtime=0.39 cores=4,6
/proc/13983/stat : 13983 (MPhaseSAT64) R 13981 13983 13135 0 -1 4202496 1096 0 0 0 39 0 0 0 25 0 1 0 656606064 14548992 971 33554432000 4194304 4479436 140734838612800 18446744073709551615 4451088 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13983/statm: 3552 971 325 70 0 672 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 14208

[startup+0.600997 s]
/proc/loadavg: 3.99 3.72 3.77 4/361 13983
/proc/meminfo: memFree=26121168/32951124 swapFree=53501236/67111528
[pid=13983] ppid=13981 vsize=14276 CPUtime=0.59 cores=4,6
/proc/13983/stat : 13983 (MPhaseSAT64) R 13981 13983 13135 0 -1 4202496 1161 0 0 0 59 0 0 0 25 0 1 0 656606064 14618624 988 33554432000 4194304 4479436 140734838612800 18446744073709551615 4450905 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13983/statm: 3569 988 325 70 0 689 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 14276

Child status: 10
Real time (s): 0.66509
CPU time (s): 0.664898
CPU user time (s): 0.662899
CPU system time (s): 0.001999
CPU usage (%): 99.9711
Max. virtual memory (cumulated for all children) (KiB): 14276

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.662899
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1172
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= 1

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node103 at 2011-05-15 11:00:34
IDJOB=3375290
IDBENCH=82999
IDSOLVER=1855
FILE ID=node103/3375290-1305450034
RUNJOBID= node103-1305449644-13704
PBS_JOBID= 13324856
Free space on /tmp= 73048 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v75-c1597-S445191369-092.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375290-1305450034/watcher-3375290-1305450034 -o /tmp/evaluation-result-3375290-1305450034/solver-3375290-1305450034 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375290-1305450034.cnf

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

MD5SUM BENCH= f7876d33ac32441ad4029f31e91e25a6
RANDOM SEED=1972249044

node103.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		: 2666.858
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	: 5333.71
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		: 2666.858
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	: 5332.75
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		: 2666.858
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		: 2666.858
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	: 5332.77
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		: 2666.858
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		: 2666.858
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		: 2666.858
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	: 5332.83
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		: 2666.858
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      26121432 kB
Buffers:        311900 kB
Cached:        3956948 kB
SwapCached:     340192 kB
Active:        1369572 kB
Inactive:      5188548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      26121432 kB
SwapTotal:    67111528 kB
SwapFree:     53501236 kB
Dirty:             396 kB
Writeback:           0 kB
AnonPages:     1959988 kB
Mapped:          11484 kB
Slab:           152320 kB
PageTables:      53260 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 78381396 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= 73048 MiB
End job on node103 at 2011-05-15 11:00:35