Trace number 3266276

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 1.22281 1.22644

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3900_3900_220.shuffled.cnf
MD5SUMf0b7e0675915478b15cab3695fd0fd62
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.035994
Satisfiable
(Un)Satisfiability was proved
Number of variables220
Number of clauses3432
Sum of the clauses size17000
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32
Number of clauses of size 4156
Number of clauses of size 53274
Number of clauses of size over 50

Solver Data 

1.19/1.22	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
1.19/1.22	c input CNF file=HOME/instance-3266276-1303577561.cnf 
1.19/1.22	c Clause#=3432  var#=220  ratio=15 
1.19/1.22	c Simplified clause#=3432 
1.19/1.22	c XOR_varElimination deleted var#=0 clauses#=3432 
1.19/1.22	c inative var#=0 
1.19/1.22	c free var#=220  
1.19/1.22	c local search on 
1.19/1.22	c A solution found by local search 
1.19/1.22	c unfixed var#=0 var#=220 
1.19/1.22	c verified 
1.19/1.22	c 
1.19/1.22	s SATISFIABLE
1.19/1.22	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 -176 177 178 -179 -180 -181 -182 183 184 185 -186 -187 188 189 -190 191 -192 -193 -194 195 196 -197 198 199 -200 201 202 203 204 205 -206 207 208 209 -210 211 212 -213 214 -215 -216 -217 218 219 220 
1.19/1.22	v 0
1.19/1.22	c 
1.19/1.22	c  Running time=1.221814

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-3266276-1303577561/watcher-3266276-1303577561 -o /tmp/evaluation-result-3266276-1303577561/solver-3266276-1303577561 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3266276-1303577561.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: 1.67 2.67 3.05 5/189 18288
/proc/meminfo: memFree=16023024/32951124 swapFree=67111528/67111528
[pid=18288] ppid=18286 vsize=3140 CPUtime=0 cores=0,2
/proc/18288/stat : 18288 (MPhaseSAT_M) R 18286 18288 18093 0 -1 4202496 321 0 0 0 0 0 0 0 25 0 1 0 450171531 3215360 262 33554432000 134512640 134829744 4286693744 18446744073709551615 134531753 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18288/statm: 785 262 225 78 0 71 0

[startup+0.0539431 s]
/proc/loadavg: 1.67 2.67 3.05 5/189 18288
/proc/meminfo: memFree=16023024/32951124 swapFree=67111528/67111528
[pid=18288] ppid=18286 vsize=3556 CPUtime=0.04 cores=0,2
/proc/18288/stat : 18288 (MPhaseSAT_M) R 18286 18288 18093 0 -1 4202496 411 0 0 0 4 0 0 0 25 0 1 0 450171531 3641344 349 33554432000 134512640 134829744 4286693744 18446744073709551615 134580682 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18288/statm: 889 349 238 78 0 175 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3556

[startup+0.100944 s]
/proc/loadavg: 1.67 2.67 3.05 5/189 18288
/proc/meminfo: memFree=16023024/32951124 swapFree=67111528/67111528
[pid=18288] ppid=18286 vsize=3780 CPUtime=0.09 cores=0,2
/proc/18288/stat : 18288 (MPhaseSAT_M) R 18286 18288 18093 0 -1 4202496 523 0 0 0 9 0 0 0 25 0 1 0 450171531 3870720 460 33554432000 134512640 134829744 4286693744 18446744073709551615 134657320 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18288/statm: 945 460 270 78 0 231 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3780

[startup+0.300908 s]
/proc/loadavg: 1.67 2.67 3.05 5/189 18288
/proc/meminfo: memFree=16023024/32951124 swapFree=67111528/67111528
[pid=18288] ppid=18286 vsize=4308 CPUtime=0.29 cores=0,2
/proc/18288/stat : 18288 (MPhaseSAT_M) R 18286 18288 18093 0 -1 4202496 658 0 0 0 29 0 0 0 25 0 1 0 450171531 4411392 595 33554432000 134512640 134829744 4286693744 18446744073709551615 134661443 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18288/statm: 1077 595 270 78 0 363 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4308

[startup+0.70084 s]
/proc/loadavg: 1.67 2.67 3.05 5/189 18288
/proc/meminfo: memFree=16023024/32951124 swapFree=67111528/67111528
[pid=18288] ppid=18286 vsize=4572 CPUtime=0.69 cores=0,2
/proc/18288/stat : 18288 (MPhaseSAT_M) R 18286 18288 18093 0 -1 4202496 732 0 0 0 69 0 0 0 25 0 1 0 450171531 4681728 669 33554432000 134512640 134829744 4286693744 18446744073709551615 134661446 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18288/statm: 1143 669 270 78 0 429 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4572

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

[startup+1.10675 s]
/proc/loadavg: 1.86 2.69 3.06 5/190 18289
/proc/meminfo: memFree=16020296/32951124 swapFree=67111528/67111528
[pid=18288] ppid=18286 vsize=4840 CPUtime=1.1 cores=0,2
/proc/18288/stat : 18288 (MPhaseSAT_M) R 18286 18288 18093 0 -1 4202496 798 0 0 0 110 0 0 0 25 0 1 0 450171531 4956160 735 33554432000 134512640 134829744 4286693744 18446744073709551615 134614876 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18288/statm: 1210 735 270 78 0 496 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4840

[startup+1.20074 s]
/proc/loadavg: 1.86 2.69 3.06 5/190 18289
/proc/meminfo: memFree=16020296/32951124 swapFree=67111528/67111528
[pid=18288] ppid=18286 vsize=5108 CPUtime=1.19 cores=0,2
/proc/18288/stat : 18288 (MPhaseSAT_M) R 18286 18288 18093 0 -1 4202496 859 0 0 0 119 0 0 0 25 0 1 0 450171531 5230592 796 33554432000 134512640 134829744 4286693744 18446744073709551615 134603624 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18288/statm: 1277 796 273 78 0 563 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 5108

Child status: 10
Real time (s): 1.22644
CPU time (s): 1.22281
CPU user time (s): 1.22181
CPU system time (s): 0.000999
CPU usage (%): 99.7043
Max. virtual memory (cumulated for all children) (KiB): 5108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.22181
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= 878
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= 4

runsolver used 0.005999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node142 at 2011-04-23 18:52:41
IDJOB=3266276
IDBENCH=87453
IDSOLVER=1522
FILE ID=node142/3266276-1303577561
RUNJOBID= node142-1303577558-18111
PBS_JOBID= 13150327
Free space on /tmp= 71364 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3900_3900_220.shuffled.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266276-1303577561/watcher-3266276-1303577561 -o /tmp/evaluation-result-3266276-1303577561/solver-3266276-1303577561 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3266276-1303577561.cnf

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

MD5SUM BENCH= f0b7e0675915478b15cab3695fd0fd62
RANDOM SEED=1696513115

node142.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		: 2666.846
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		: 2666.846
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	: 5131.95
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		: 2666.846
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		: 2666.846
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	: 5332.67
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		: 2666.846
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	: 5332.81
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		: 2666.846
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		: 2666.846
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		: 2666.846
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:      16023180 kB
Buffers:       2064884 kB
Cached:       14219472 kB
SwapCached:          0 kB
Active:        6729288 kB
Inactive:      9628848 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16023180 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2588 kB
Writeback:           0 kB
AnonPages:       72984 kB
Mapped:          16772 kB
Slab:           505704 kB
PageTables:       5236 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   256152 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= 71364 MiB
End job on node142 at 2011-04-23 18:52:42