Trace number 3220826

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_M 2011-02-16SAT 1.24981 1.25168

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S110935064-075.SATISFIABLE.cnf
MD5SUMb179d65395dd8ffd730bf106fb19b537
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.241963
Satisfiable
(Un)Satisfiability was proved
Number of variables175
Number of clauses3727
Sum of the clauses size18635
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 53727
Number of clauses of size over 50

Solver Data 

1.19/1.25	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
1.19/1.25	c input CNF file=HOME/instance-3220826-1303285462.cnf 
1.19/1.25	c Clause#=3727  var#=175  ratio=21 
1.19/1.25	c Simplified clause#=3727 
1.19/1.25	c XOR_varElimination deleted var#=0 clauses#=3727 
1.19/1.25	c inative var#=0 
1.19/1.25	c free var#=175  
1.19/1.25	c local search on 
1.19/1.25	c A solution found by local search 
1.19/1.25	c unfixed var#=0 var#=175 
1.19/1.25	c verified 
1.19/1.25	c 
1.19/1.25	s SATISFIABLE
1.19/1.25	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 -167 168 169 170 171 172 -173 174 -175 
1.19/1.25	v 0
1.19/1.25	c 
1.19/1.25	c  Running time=1.247811

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3220826-1303285462/watcher-3220826-1303285462 -o /tmp/evaluation-result-3220826-1303285462/solver-3220826-1303285462 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3220826-1303285462.cnf 

running on 4 cores: 1,3,5,7

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): 5000 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: 1.99 1.99 1.99 3/181 27263
/proc/meminfo: memFree=22180304/32951124 swapFree=67111416/67111528
[pid=27263] ppid=27261 vsize=3140 CPUtime=0 cores=1,3,5,7
/proc/27263/stat : 27263 (MPhaseSAT_M) R 27261 27263 26265 0 -1 4202496 324 0 0 0 0 0 0 0 25 0 1 0 440144397 3215360 266 33554432000 134512640 134829744 4291354752 18446744073709551615 134531753 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/27263/statm: 785 266 225 78 0 71 0

[startup+0.070562 s]
/proc/loadavg: 1.99 1.99 1.99 3/181 27263
/proc/meminfo: memFree=22180304/32951124 swapFree=67111416/67111528
[pid=27263] ppid=27261 vsize=3588 CPUtime=0.06 cores=1,3,5,7
/proc/27263/stat : 27263 (MPhaseSAT_M) R 27261 27263 26265 0 -1 4202496 418 0 0 0 6 0 0 0 25 0 1 0 440144397 3674112 358 33554432000 134512640 134829744 4291354752 18446744073709551615 134580685 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/27263/statm: 897 358 238 78 0 183 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3588

[startup+0.100561 s]
/proc/loadavg: 1.99 1.99 1.99 3/181 27263
/proc/meminfo: memFree=22180304/32951124 swapFree=67111416/67111528
[pid=27263] ppid=27261 vsize=3676 CPUtime=0.09 cores=1,3,5,7
/proc/27263/stat : 27263 (MPhaseSAT_M) R 27261 27263 26265 0 -1 4202496 517 0 0 0 9 0 0 0 25 0 1 0 440144397 3764224 456 33554432000 134512640 134829744 4291354752 18446744073709551615 134651716 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/27263/statm: 919 456 263 78 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3676

[startup+0.300521 s]
/proc/loadavg: 1.99 1.99 1.99 3/181 27263
/proc/meminfo: memFree=22180304/32951124 swapFree=67111416/67111528
[pid=27263] ppid=27261 vsize=4204 CPUtime=0.29 cores=1,3,5,7
/proc/27263/stat : 27263 (MPhaseSAT_M) R 27261 27263 26265 0 -1 4202496 643 0 0 0 29 0 0 0 25 0 1 0 440144397 4304896 582 33554432000 134512640 134829744 4291354752 18446744073709551615 134722439 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/27263/statm: 1051 582 270 78 0 337 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4204

[startup+0.700462 s]
/proc/loadavg: 1.99 1.99 1.99 3/181 27263
/proc/meminfo: memFree=22180304/32951124 swapFree=67111416/67111528
[pid=27263] ppid=27261 vsize=4468 CPUtime=0.69 cores=1,3,5,7
/proc/27263/stat : 27263 (MPhaseSAT_M) R 27261 27263 26265 0 -1 4202496 706 0 0 0 69 0 0 0 25 0 1 0 440144397 4575232 645 33554432000 134512640 134829744 4291354752 18446744073709551615 134722783 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/27263/statm: 1117 645 270 78 0 403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4468

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

[startup+1.10638 s]
/proc/loadavg: 1.99 1.99 1.99 3/182 27264
/proc/meminfo: memFree=22178452/32951124 swapFree=67111416/67111528
[pid=27263] ppid=27261 vsize=4864 CPUtime=1.1 cores=1,3,5,7
/proc/27263/stat : 27263 (MPhaseSAT_M) R 27261 27263 26265 0 -1 4202496 820 0 0 0 110 0 0 0 25 0 1 0 440144397 4980736 759 33554432000 134512640 134829744 4291354752 18446744073709551615 134609537 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/27263/statm: 1216 759 273 78 0 502 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4864

[startup+1.20037 s]
/proc/loadavg: 1.99 1.99 1.99 3/182 27264
/proc/meminfo: memFree=22178452/32951124 swapFree=67111416/67111528
[pid=27263] ppid=27261 vsize=4864 CPUtime=1.19 cores=1,3,5,7
/proc/27263/stat : 27263 (MPhaseSAT_M) R 27261 27263 26265 0 -1 4202496 820 0 0 0 119 0 0 0 25 0 1 0 440144397 4980736 759 33554432000 134512640 134829744 4291354752 18446744073709551615 134606560 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/27263/statm: 1216 759 273 78 0 502 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 4864

Child status: 10
Real time (s): 1.25168
CPU time (s): 1.24981
CPU user time (s): 1.24681
CPU system time (s): 0.002999
CPU usage (%): 99.8501
Max. virtual memory (cumulated for all children) (KiB): 4864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.24681
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= 829
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= 12
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node134 at 2011-04-20 09:44:22
IDJOB=3220826
IDBENCH=82821
IDSOLVER=1637
FILE ID=node134/3220826-1303285462
RUNJOBID= node134-1303271632-26284
PBS_JOBID= 13049531
Free space on /tmp= 71988 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S110935064-075.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220826-1303285462/watcher-3220826-1303285462 -o /tmp/evaluation-result-3220826-1303285462/solver-3220826-1303285462 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3220826-1303285462.cnf

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

MD5SUM BENCH= b179d65395dd8ffd730bf106fb19b537
RANDOM SEED=560243362

node134.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		: 2666.831
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	: 5333.66
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		: 2666.831
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	: 5332.67
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		: 2666.831
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	: 5332.83
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		: 2666.831
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	: 7186.06
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		: 2666.831
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	: 5332.80
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22180460 kB
Buffers:        665956 kB
Cached:        9603124 kB
SwapCached:        108 kB
Active:        5831040 kB
Inactive:      4580536 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22180460 kB
SwapTotal:    67111528 kB
SwapFree:     67111416 kB
Dirty:             432 kB
Writeback:          32 kB
AnonPages:      142568 kB
Mapped:          16524 kB
Slab:           297484 kB
PageTables:       4972 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   287612 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71988 MiB
End job on node134 at 2011-04-20 09:44:23