Trace number 3374997

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 1.66575 1.66799

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v70-c6230-S944754256-018.SATISFIABLE.cnf
MD5SUMdb18d6e256ea6948d91cc6cd8858dc3d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.400938
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses6230
Sum of the clauses size43610
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 56230

Solver Data 

1.59/1.66	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
1.59/1.66	c input CNF file=HOME/instance-3374997-1305449077.cnf 
1.59/1.66	c Clause#=6230  var#=70  ratio=89 
1.59/1.66	c Simplified clause#=6230 
1.59/1.66	c XOR_varElimination deleted var#=0 clauses#=6230 
1.59/1.66	c inative var#=0 
1.59/1.66	c free var#=70  
1.59/1.66	c local search on 
1.59/1.66	c A solution found by local search 
1.59/1.66	c unfixed var#=0 var#=70 
1.59/1.66	c verified 
1.59/1.66	c 
1.59/1.66	s SATISFIABLE
1.59/1.66	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 
1.59/1.66	v 0
1.59/1.66	c 
1.59/1.66	c  Running time=1.664747

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-3374997-1305449077/watcher-3374997-1305449077 -o /tmp/evaluation-result-3374997-1305449077/solver-3374997-1305449077 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3374997-1305449077.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 4.01 3.98 3.57 5/336 2453
/proc/meminfo: memFree=25003764/32951124 swapFree=44485764/67111528
[pid=2453] ppid=2451 vsize=12016 CPUtime=0 cores=0,2
/proc/2453/stat : 2453 (MPhaseSAT64) R 2451 2453 1741 0 -1 4202496 379 0 0 0 0 0 0 0 25 0 1 0 656508189 12304384 320 33554432000 4194304 4479436 140733607394480 18446744073709551615 4213885 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/2453/statm: 3004 320 267 70 0 124 0

[startup+0.0246009 s]
/proc/loadavg: 4.01 3.98 3.57 5/336 2453
/proc/meminfo: memFree=25003764/32951124 swapFree=44485764/67111528
[pid=2453] ppid=2451 vsize=13744 CPUtime=0.02 cores=0,2
/proc/2453/stat : 2453 (MPhaseSAT64) R 2451 2453 1741 0 -1 4202496 881 0 0 0 2 0 0 0 25 0 1 0 656508189 14073856 735 33554432000 4194304 4479436 140733607394480 18446744073709551615 4339551 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/2453/statm: 3436 735 303 70 0 556 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 13744

[startup+0.100613 s]
/proc/loadavg: 4.01 3.98 3.57 5/336 2453
/proc/meminfo: memFree=25003764/32951124 swapFree=44485764/67111528
[pid=2453] ppid=2451 vsize=14260 CPUtime=0.09 cores=0,2
/proc/2453/stat : 2453 (MPhaseSAT64) R 2451 2453 1741 0 -1 4202496 1010 0 0 0 9 0 0 0 25 0 1 0 656508189 14602240 864 33554432000 4194304 4479436 140733607394480 18446744073709551615 4340958 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/2453/statm: 3565 864 303 70 0 685 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14260

[startup+0.300559 s]
/proc/loadavg: 4.01 3.98 3.57 5/336 2453
/proc/meminfo: memFree=25003764/32951124 swapFree=44485764/67111528
[pid=2453] ppid=2451 vsize=14772 CPUtime=0.29 cores=0,2
/proc/2453/stat : 2453 (MPhaseSAT64) R 2451 2453 1741 0 -1 4202496 1152 0 0 0 29 0 0 0 25 0 1 0 656508189 15126528 1006 33554432000 4194304 4479436 140733607394480 18446744073709551615 4304370 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/2453/statm: 3693 1006 317 70 0 813 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14772

[startup+0.700499 s]
/proc/loadavg: 4.01 3.98 3.57 5/336 2453
/proc/meminfo: memFree=25003764/32951124 swapFree=44485764/67111528
[pid=2453] ppid=2451 vsize=15064 CPUtime=0.69 cores=0,2
/proc/2453/stat : 2453 (MPhaseSAT64) R 2451 2453 1741 0 -1 4202496 1232 0 0 0 69 0 0 0 25 0 1 0 656508189 15425536 1086 33554432000 4194304 4479436 140733607394480 18446744073709551615 4450896 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/2453/statm: 3766 1086 324 70 0 886 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15064

[startup+1.50033 s]
/proc/loadavg: 4.01 3.98 3.57 5/337 2454
/proc/meminfo: memFree=24998172/32951124 swapFree=44485764/67111528
[pid=2453] ppid=2451 vsize=16604 CPUtime=1.49 cores=0,2
/proc/2453/stat : 2453 (MPhaseSAT64) R 2451 2453 1741 0 -1 4202496 1705 0 0 0 149 0 0 0 25 0 1 0 656508189 17002496 1495 33554432000 4194304 4479436 140733607394480 18446744073709551615 4294865 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/2453/statm: 4151 1495 327 70 0 1271 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16604

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

[startup+1.60033 s]
/proc/loadavg: 4.01 3.98 3.57 5/337 2454
/proc/meminfo: memFree=24998172/32951124 swapFree=44485764/67111528
[pid=2453] ppid=2451 vsize=16604 CPUtime=1.59 cores=0,2
/proc/2453/stat : 2453 (MPhaseSAT64) R 2451 2453 1741 0 -1 4202496 1705 0 0 0 159 0 0 0 25 0 1 0 656508189 17002496 1495 33554432000 4194304 4479436 140733607394480 18446744073709551615 4294637 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/2453/statm: 4151 1495 327 70 0 1271 0
Current children cumulated CPU time (s) 1.59
Current children cumulated vsize (KiB) 16604

Child status: 10
Real time (s): 1.66799
CPU time (s): 1.66575
CPU user time (s): 1.66275
CPU system time (s): 0.002999
CPU usage (%): 99.8654
Max. virtual memory (cumulated for all children) (KiB): 16860

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.66275
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= 1719
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= 6

runsolver used 0.006998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node105 at 2011-05-15 10:44:38
IDJOB=3374997
IDBENCH=82706
IDSOLVER=1855
FILE ID=node105/3374997-1305449077
RUNJOBID= node105-1305447769-2201
PBS_JOBID= 13324851
Free space on /tmp= 73616 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k7-r89-v70-c6230-S944754256-018.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3374997-1305449077/watcher-3374997-1305449077 -o /tmp/evaluation-result-3374997-1305449077/solver-3374997-1305449077 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3374997-1305449077.cnf

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

MD5SUM BENCH= db18d6e256ea6948d91cc6cd8858dc3d
RANDOM SEED=1110202961

node105.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		: 2666.825
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	: 5333.65
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		: 2666.825
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		: 2666.825
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	: 5332.82
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		: 2666.825
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		: 2666.825
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	: 5410.70
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		: 2666.825
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		: 2666.825
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	: 5332.82
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		: 2666.825
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:      25003788 kB
Buffers:        292352 kB
Cached:        6094616 kB
SwapCached:      39656 kB
Active:         904424 kB
Inactive:      6780480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      25003788 kB
SwapTotal:    67111528 kB
SwapFree:     44485764 kB
Dirty:             392 kB
Writeback:           0 kB
AnonPages:     1265872 kB
Mapped:          11352 kB
Slab:           129920 kB
PageTables:      67008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 65478480 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= 73616 MiB
End job on node105 at 2011-05-15 10:44:39