Trace number 3220652

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 3.51846 3.52028

General information on the benchmark

Namerandom/medium/
unif-k5-r21.3-v175-c3727-S539832832-088.SATISFIABLE.cnf
MD5SUM96d6aca5635fba3566aa8534cdc228f2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.36579
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 

3.49/3.52	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
3.49/3.52	c input CNF file=HOME/instance-3220652-1303281783.cnf 
3.49/3.52	c Clause#=3727  var#=175  ratio=21 
3.49/3.52	c Simplified clause#=3727 
3.49/3.52	c XOR_varElimination deleted var#=0 clauses#=3727 
3.49/3.52	c inative var#=0 
3.49/3.52	c free var#=175  
3.49/3.52	c local search on 
3.49/3.52	c A solution found by local search 
3.49/3.52	c unfixed var#=0 var#=175 
3.49/3.52	c verified 
3.49/3.52	c 
3.49/3.52	s SATISFIABLE
3.49/3.52	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 
3.49/3.52	v 0
3.49/3.52	c 
3.49/3.52	c  Running time=3.517465

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-3220652-1303281783/watcher-3220652-1303281783 -o /tmp/evaluation-result-3220652-1303281783/solver-3220652-1303281783 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3220652-1303281783.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): 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: 1.92 1.98 1.99 2/175 22216
/proc/meminfo: memFree=19492060/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=3312 CPUtime=0 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 358 0 0 0 0 0 0 0 25 0 1 0 439776914 3391488 298 33554432000 134512640 134829744 4289015936 18446744073709551615 134552608 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 828 301 230 78 0 114 0

[startup+0.0912141 s]
/proc/loadavg: 1.92 1.98 1.99 2/175 22216
/proc/meminfo: memFree=19492060/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=3412 CPUtime=0.08 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 436 0 0 0 8 0 0 0 25 0 1 0 439776914 3493888 374 33554432000 134512640 134829744 4289015936 18446744073709551615 134724129 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 853 374 252 78 0 139 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3412

[startup+0.100222 s]
/proc/loadavg: 1.92 1.98 1.99 2/175 22216
/proc/meminfo: memFree=19492060/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=3676 CPUtime=0.09 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 518 0 0 0 9 0 0 0 25 0 1 0 439776914 3764224 456 33554432000 134512640 134829744 4289015936 18446744073709551615 134668016 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 919 456 263 78 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3676

[startup+0.3002 s]
/proc/loadavg: 1.92 1.98 1.99 2/175 22216
/proc/meminfo: memFree=19492060/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=4204 CPUtime=0.29 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 647 0 0 0 29 0 0 0 25 0 1 0 439776914 4304896 585 33554432000 134512640 134829744 4289015936 18446744073709551615 134661647 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 1051 585 270 78 0 337 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4204

[startup+0.701117 s]
/proc/loadavg: 1.92 1.98 1.99 2/175 22216
/proc/meminfo: memFree=19492060/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=4468 CPUtime=0.69 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 724 0 0 0 69 0 0 0 25 0 1 0 439776914 4575232 662 33554432000 134512640 134829744 4289015936 18446744073709551615 8712538 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 1117 662 270 78 0 403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4468

[startup+1.50098 s]
/proc/loadavg: 1.92 1.98 1.99 3/176 22217
/proc/meminfo: memFree=19490320/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=4864 CPUtime=1.49 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 822 0 0 0 149 0 0 0 25 0 1 0 439776914 4980736 760 33554432000 134512640 134829744 4289015936 18446744073709551615 134605897 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 1216 760 273 78 0 502 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4864

[startup+3.10067 s]
/proc/loadavg: 1.92 1.98 1.99 3/176 22217
/proc/meminfo: memFree=19489824/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=4864 CPUtime=3.09 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 822 0 0 0 309 0 0 0 25 0 1 0 439776914 4980736 760 33554432000 134512640 134829744 4289015936 18446744073709551615 134605910 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 1216 760 273 78 0 502 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4864

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

[startup+3.50061 s]
/proc/loadavg: 2.09 2.02 2.01 3/176 22217
/proc/meminfo: memFree=19489452/32951132 swapFree=67111528/67111528
[pid=22216] ppid=22214 vsize=4864 CPUtime=3.49 cores=0,2,4,6
/proc/22216/stat : 22216 (MPhaseSAT_M) R 22214 22216 20659 0 -1 4202496 822 0 0 0 349 0 0 0 25 0 1 0 439776914 4980736 760 33554432000 134512640 134829744 4289015936 18446744073709551615 134606336 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22216/statm: 1216 760 273 78 0 502 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 4864

Child status: 10
Real time (s): 3.52028
CPU time (s): 3.51846
CPU user time (s): 3.51747
CPU system time (s): 0.000999
CPU usage (%): 99.9484
Max. virtual memory (cumulated for all children) (KiB): 4864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.51747
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= 831
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= 41

runsolver used 0.010998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-20 08:43:03
IDJOB=3220652
IDBENCH=82792
IDSOLVER=1637
FILE ID=node128/3220652-1303281783
RUNJOBID= node128-1303261267-20677
PBS_JOBID= 13049522
Free space on /tmp= 73008 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k5-r21.3-v175-c3727-S539832832-088.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220652-1303281783/watcher-3220652-1303281783 -o /tmp/evaluation-result-3220652-1303281783/solver-3220652-1303281783 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3220652-1303281783.cnf

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

MD5SUM BENCH= 96d6aca5635fba3566aa8534cdc228f2
RANDOM SEED=1721986618

node128.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		: 2666.852
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	: 5333.70
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5332.82
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      19492340 kB
Buffers:        572728 kB
Cached:       12229912 kB
SwapCached:          0 kB
Active:        8059028 kB
Inactive:      5086708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      19492340 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             416 kB
Writeback:          20 kB
AnonPages:      341884 kB
Mapped:          16608 kB
Slab:           251520 kB
PageTables:       5392 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   493440 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73008 MiB
End job on node128 at 2011-04-20 08:43:06