Trace number 3445878

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 2011-02-15SAT 1.04884 1.04918

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_4300_4300_170.shuffled.cnf
MD5SUM82789f57e506af1994452e76af2dcbf0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.095984
Satisfiable
(Un)Satisfiability was proved
Number of variables170
Number of clauses2924
Sum of the clauses size14457
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31
Number of clauses of size 4161
Number of clauses of size 52762
Number of clauses of size over 50

Solver Data 

1.01/1.04	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.01/1.04	c input CNF file=HOME/instance-3445878-1306986306.cnf 
1.01/1.04	c Clause#=2924  var#=170  ratio=17 
1.01/1.04	c Simplified clause#=2924 
1.01/1.04	c XOR_varElimination deleted var#=0 clauses#=2924 
1.01/1.04	c inative var#=0 
1.01/1.04	c free var#=170  
1.01/1.04	c local search on 
1.01/1.04	c A solution found by local search 
1.01/1.04	c unfixed var#=0 var#=170 
1.01/1.04	c verified 
1.01/1.04	c 
1.01/1.04	s SATISFIABLE
1.01/1.04	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 -111 112 -113 114 115 116 -117 -118 -119 -120 121 -122 123 124 125 126 -127 -128 129 130 131 -132 -133 134 -135 136 -137 -138 139 140 -141 -142 -143 144 145 -146 -147 148 -149 150 151 -152 -153 154 155 -156 -157 -158 159 -160 -161 -162 -163 -164 165 166 167 -168 169 170 
1.01/1.04	v 0
1.01/1.04	c 
1.01/1.04	c  Running time=1.046841

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 977)

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-3445878-1306986306/watcher-3445878-1306986306 -o /tmp/evaluation-result-3445878-1306986306/solver-3445878-1306986306 -C 5000 -W 5100 -M 15500 MPhaseSAT HOME/instance-3445878-1306986306.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28513
/proc/meminfo: memFree=19559892/32950940 swapFree=67111364/67111528
[pid=28513] ppid=28511 vsize=3392 CPUtime=0.01 cores=0,2,4,6
/proc/28513/stat : 28513 (MPhaseSAT) R 28511 28513 25394 0 -1 4202496 399 0 0 0 1 0 0 0 25 0 1 0 888861353 3473408 337 33554432000 134512640 134731564 4288202704 18446744073709551615 134579869 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28513/statm: 848 337 238 54 0 158 0

[startup+0.0367629 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28513
/proc/meminfo: memFree=19559892/32950940 swapFree=67111364/67111528
[pid=28513] ppid=28511 vsize=3392 CPUtime=0.03 cores=0,2,4,6
/proc/28513/stat : 28513 (MPhaseSAT) R 28511 28513 25394 0 -1 4202496 399 0 0 0 3 0 0 0 25 0 1 0 888861353 3473408 337 33554432000 134512640 134731564 4288202704 18446744073709551615 134580475 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28513/statm: 848 337 238 54 0 158 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3392

[startup+0.100811 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28513
/proc/meminfo: memFree=19559892/32950940 swapFree=67111364/67111528
[pid=28513] ppid=28511 vsize=3640 CPUtime=0.09 cores=0,2,4,6
/proc/28513/stat : 28513 (MPhaseSAT) R 28511 28513 25394 0 -1 4202496 524 0 0 0 9 0 0 0 25 0 1 0 888861353 3727360 461 33554432000 134512640 134731564 4288202704 18446744073709551615 7954262 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28513/statm: 910 461 268 54 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3640

[startup+0.300776 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28513
/proc/meminfo: memFree=19559892/32950940 swapFree=67111364/67111528
[pid=28513] ppid=28511 vsize=4036 CPUtime=0.29 cores=0,2,4,6
/proc/28513/stat : 28513 (MPhaseSAT) R 28511 28513 25394 0 -1 4202496 619 0 0 0 29 0 0 0 25 0 1 0 888861353 4132864 556 33554432000 134512640 134731564 4288202704 18446744073709551615 134659329 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28513/statm: 1009 556 268 54 0 319 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4036

[startup+0.700719 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28513
/proc/meminfo: memFree=19559892/32950940 swapFree=67111364/67111528
[pid=28513] ppid=28511 vsize=4432 CPUtime=0.69 cores=0,2,4,6
/proc/28513/stat : 28513 (MPhaseSAT) R 28511 28513 25394 0 -1 4202496 716 0 0 0 69 0 0 0 25 0 1 0 888861353 4538368 653 33554432000 134512640 134731564 4288202704 18446744073709551615 134723714 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28513/statm: 1108 653 268 54 0 418 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4432

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

[startup+0.900679 s]
/proc/loadavg: 1.51 1.25 1.53 2/514 28513
/proc/meminfo: memFree=19559892/32950940 swapFree=67111364/67111528
[pid=28513] ppid=28511 vsize=4432 CPUtime=0.89 cores=0,2,4,6
/proc/28513/stat : 28513 (MPhaseSAT) R 28511 28513 25394 0 -1 4202496 732 0 0 0 89 0 0 0 25 0 1 0 888861353 4538368 669 33554432000 134512640 134731564 4288202704 18446744073709551615 134634510 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28513/statm: 1108 669 268 54 0 418 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4432

[startup+1.00065 s]
/proc/loadavg: 1.51 1.25 1.53 4/515 28514
/proc/meminfo: memFree=19557304/32950940 swapFree=67111364/67111528
[pid=28513] ppid=28511 vsize=4700 CPUtime=1.01 cores=0,2,4,6
/proc/28513/stat : 28513 (MPhaseSAT) R 28511 28513 25394 0 -1 4202496 779 0 0 0 101 0 0 0 25 0 1 0 888861353 4812800 716 33554432000 134512640 134731564 4288202704 18446744073709551615 134607416 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/28513/statm: 1175 716 271 54 0 485 0
Current children cumulated CPU time (s) 1.01
Current children cumulated vsize (KiB) 4700

Child status: 10
Real time (s): 1.04918
CPU time (s): 1.04884
CPU user time (s): 1.04784
CPU system time (s): 0.000999
CPU usage (%): 99.9678
Max. virtual memory (cumulated for all children) (KiB): 4700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.04784
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= 788
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= 1

runsolver used 0.016997 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node117 at 2011-06-02 05:45:06
IDJOB=3445878
IDBENCH=87447
IDSOLVER=1941
FILE ID=node117/3445878-1306986306
RUNJOBID= node117-1306986261-28357
PBS_JOBID= 13497692
Free space on /tmp= 73596 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_4300_4300_170.shuffled.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3445878-1306986306/watcher-3445878-1306986306 -o /tmp/evaluation-result-3445878-1306986306/solver-3445878-1306986306 -C 5000 -W 5100 -M 15500  MPhaseSAT HOME/instance-3445878-1306986306.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 82789f57e506af1994452e76af2dcbf0
RANDOM SEED=1699730064

node117.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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5267.44
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950940 kB
MemFree:      19560172 kB
Buffers:        328716 kB
Cached:        2889272 kB
SwapCached:          0 kB
Active:       10056492 kB
Inactive:      2955812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950940 kB
LowFree:      19560172 kB
SwapTotal:    67111528 kB
SwapFree:     67111364 kB
Dirty:             408 kB
Writeback:           0 kB
AnonPages:     9794048 kB
Mapped:          42284 kB
Slab:           251456 kB
PageTables:      57868 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586996 kB
Committed_AS: 149502104 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= 73596 MiB
End job on node117 at 2011-06-02 05:45:07