Trace number 3375490

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 0.690894 0.696395

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_4300_4300_110.shuffled.cnf
MD5SUM34f8b747bfe8e7b589b8832e56ae8363
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.022996
Satisfiable
(Un)Satisfiability was proved
Number of variables110
Number of clauses1892
Sum of the clauses size9308
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33
Number of clauses of size 4146
Number of clauses of size 51743
Number of clauses of size over 50

Solver Data 

0.59/0.69	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.59/0.69	c input CNF file=HOME/instance-3375490-1305462363.cnf 
0.59/0.69	c Clause#=1892  var#=110  ratio=17 
0.59/0.69	c Simplified clause#=1892 
0.59/0.69	c XOR_varElimination deleted var#=0 clauses#=1892 
0.59/0.69	c inative var#=0 
0.59/0.69	c free var#=110  
0.59/0.69	c local search on 
0.59/0.69	c A solution found by local search 
0.59/0.69	c unfixed var#=0 var#=110 
0.59/0.69	c verified 
0.59/0.69	c 
0.59/0.69	s SATISFIABLE
0.59/0.69	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 -76 77 78 79 -80 -81 -82 83 84 85 86 87 -88 89 -90 91 92 93 94 95 -96 97 98 -99 100 101 -102 103 104 105 -106 107 108 109 110 
0.59/0.69	v 0
0.59/0.69	c 
0.59/0.69	c  Running time=0.689895

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-3375490-1305462363/watcher-3375490-1305462363 -o /tmp/evaluation-result-3375490-1305462363/solver-3375490-1305462363 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375490-1305462363.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: 3.72 3.97 3.84 5/359 28864
/proc/meminfo: memFree=25133696/32951124 swapFree=40554400/67111528
[pid=28864] ppid=28862 vsize=12132 CPUtime=0 cores=4,6
/proc/28864/stat : 28864 (MPhaseSAT64) R 28862 28864 27741 0 -1 4202496 436 0 0 0 0 0 0 0 21 0 1 0 657836768 12423168 374 33554432000 4194304 4479436 140737336235440 18446744073709551615 230808826565 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28864/statm: 3033 374 282 70 0 153 0

[startup+0.04516 s]
/proc/loadavg: 3.72 3.97 3.84 5/359 28864
/proc/meminfo: memFree=25133696/32951124 swapFree=40554400/67111528
[pid=28864] ppid=28862 vsize=12324 CPUtime=0.03 cores=4,6
/proc/28864/stat : 28864 (MPhaseSAT64) R 28862 28864 27741 0 -1 4202496 525 0 0 0 3 0 0 0 21 0 1 0 657836768 12619776 463 33554432000 4194304 4479436 140737336235440 18446744073709551615 4341791 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28864/statm: 3081 463 306 70 0 201 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12324

[startup+0.101175 s]
/proc/loadavg: 3.72 3.97 3.84 5/359 28864
/proc/meminfo: memFree=25133696/32951124 swapFree=40554400/67111528
[pid=28864] ppid=28862 vsize=12656 CPUtime=0.09 cores=4,6
/proc/28864/stat : 28864 (MPhaseSAT64) R 28862 28864 27741 0 -1 4202496 635 0 0 0 9 0 0 0 21 0 1 0 657836768 12959744 573 33554432000 4194304 4479436 140737336235440 18446744073709551615 4452496 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28864/statm: 3164 573 324 70 0 284 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12656

[startup+0.301112 s]
/proc/loadavg: 3.72 3.97 3.84 5/359 28864
/proc/meminfo: memFree=25133696/32951124 swapFree=40554400/67111528
[pid=28864] ppid=28862 vsize=13728 CPUtime=0.29 cores=4,6
/proc/28864/stat : 28864 (MPhaseSAT64) R 28862 28864 27741 0 -1 4202496 976 0 0 0 29 0 0 0 22 0 1 0 657836768 14057472 850 33554432000 4194304 4479436 140737336235440 18446744073709551615 4380302 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28864/statm: 3432 850 325 70 0 552 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13728

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

[startup+0.501043 s]
/proc/loadavg: 3.72 3.97 3.84 5/359 28864
/proc/meminfo: memFree=25133696/32951124 swapFree=40554400/67111528
[pid=28864] ppid=28862 vsize=14244 CPUtime=0.49 cores=4,6
/proc/28864/stat : 28864 (MPhaseSAT64) R 28862 28864 27741 0 -1 4202496 1201 0 0 0 49 0 0 0 22 0 1 0 657836768 14585856 979 33554432000 4194304 4479436 140737336235440 18446744073709551615 4452151 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28864/statm: 3561 979 325 70 0 681 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 14244

[startup+0.601055 s]
/proc/loadavg: 3.72 3.97 3.84 5/359 28864
/proc/meminfo: memFree=25133696/32951124 swapFree=40554400/67111528
[pid=28864] ppid=28862 vsize=14392 CPUtime=0.59 cores=4,6
/proc/28864/stat : 28864 (MPhaseSAT64) R 28862 28864 27741 0 -1 4202496 1269 0 0 0 59 0 0 0 23 0 1 0 657836768 14737408 1019 33554432000 4194304 4479436 140737336235440 18446744073709551615 4292944 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28864/statm: 3598 1019 328 70 0 718 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 14392

Child status: 10
Real time (s): 0.696395
CPU time (s): 0.690894
CPU user time (s): 0.688895
CPU system time (s): 0.001999
CPU usage (%): 99.2101
Max. virtual memory (cumulated for all children) (KiB): 14392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.688895
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= 1277
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= 4
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node104 at 2011-05-15 14:26:03
IDJOB=3375490
IDBENCH=87455
IDSOLVER=1855
FILE ID=node104/3375490-1305462363
RUNJOBID= node104-1305462363-28823
PBS_JOBID= 13324887
Free space on /tmp= 73428 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_4300_4300_110.shuffled.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375490-1305462363/watcher-3375490-1305462363 -o /tmp/evaluation-result-3375490-1305462363/solver-3375490-1305462363 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375490-1305462363.cnf

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

MD5SUM BENCH= 34f8b747bfe8e7b589b8832e56ae8363
RANDOM SEED=1265332137

node104.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		: 2666.855
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		: 2666.855
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	: 5332.83
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		: 2666.855
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	: 5332.67
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      25133728 kB
Buffers:        315548 kB
Cached:        3012572 kB
SwapCached:     122128 kB
Active:        1136604 kB
Inactive:      6407584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      25133728 kB
SwapTotal:    67111528 kB
SwapFree:     40554400 kB
Dirty:            1736 kB
Writeback:           0 kB
AnonPages:     4106672 kB
Mapped:          10872 kB
Slab:           124508 kB
PageTables:      84668 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 74878224 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= 73428 MiB
End job on node104 at 2011-05-15 14:26:04