Trace number 3095539

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 1.25281 1.25431

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 benchmark0.272958
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-3095539-1301753791.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=1.251810

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3095539-1301753791/watcher-3095539-1301753791 -o /tmp/evaluation-result-3095539-1301753791/solver-3095539-1301753791 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095539-1301753791.cnf 

running on 2 cores: 5,7

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: 3.89 3.99 3.94 5/189 24257
/proc/meminfo: memFree=23153832/32951124 swapFree=67111524/67111528
[pid=24257] ppid=24255 vsize=3140 CPUtime=0 cores=5,7
/proc/24257/stat : 24257 (MPhaseSAT_M) R 24255 24257 23452 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 286977078 3215360 272 33554432000 134512640 134829744 4291331280 18446744073709551615 134531753 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24257/statm: 785 272 225 78 0 71 0

[startup+0.062195 s]
/proc/loadavg: 3.89 3.99 3.94 5/189 24257
/proc/meminfo: memFree=23153832/32951124 swapFree=67111524/67111528
[pid=24257] ppid=24255 vsize=3588 CPUtime=0.06 cores=5,7
/proc/24257/stat : 24257 (MPhaseSAT_M) R 24255 24257 23452 0 -1 4202496 419 0 0 0 6 0 0 0 25 0 1 0 286977078 3674112 357 33554432000 134512640 134829744 4291331280 18446744073709551615 134580672 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24257/statm: 897 357 238 78 0 183 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3588

[startup+0.100176 s]
/proc/loadavg: 3.89 3.99 3.94 5/189 24257
/proc/meminfo: memFree=23153832/32951124 swapFree=67111524/67111528
[pid=24257] ppid=24255 vsize=3676 CPUtime=0.09 cores=5,7
/proc/24257/stat : 24257 (MPhaseSAT_M) R 24255 24257 23452 0 -1 4202496 518 0 0 0 9 0 0 0 25 0 1 0 286977078 3764224 455 33554432000 134512640 134829744 4291331280 18446744073709551615 134652070 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24257/statm: 919 455 263 78 0 205 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3676

[startup+0.300143 s]
/proc/loadavg: 3.89 3.99 3.94 5/189 24257
/proc/meminfo: memFree=23153832/32951124 swapFree=67111524/67111528
[pid=24257] ppid=24255 vsize=4204 CPUtime=0.29 cores=5,7
/proc/24257/stat : 24257 (MPhaseSAT_M) R 24255 24257 23452 0 -1 4202496 644 0 0 0 29 0 0 0 25 0 1 0 286977078 4304896 581 33554432000 134512640 134829744 4291331280 18446744073709551615 134722595 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24257/statm: 1051 581 270 78 0 337 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4204

[startup+0.701071 s]
/proc/loadavg: 3.89 3.99 3.94 5/189 24257
/proc/meminfo: memFree=23153832/32951124 swapFree=67111524/67111528
[pid=24257] ppid=24255 vsize=4468 CPUtime=0.69 cores=5,7
/proc/24257/stat : 24257 (MPhaseSAT_M) R 24255 24257 23452 0 -1 4202496 707 0 0 0 69 0 0 0 25 0 1 0 286977078 4575232 644 33554432000 134512640 134829744 4291331280 18446744073709551615 134661382 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24257/statm: 1117 644 270 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+1.106 s]
/proc/loadavg: 3.89 3.99 3.94 5/190 24258
/proc/meminfo: memFree=23150360/32951124 swapFree=67111524/67111528
[pid=24257] ppid=24255 vsize=4864 CPUtime=1.1 cores=5,7
/proc/24257/stat : 24257 (MPhaseSAT_M) R 24255 24257 23452 0 -1 4202496 821 0 0 0 110 0 0 0 25 0 1 0 286977078 4980736 758 33554432000 134512640 134829744 4291331280 18446744073709551615 134605786 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24257/statm: 1216 758 273 78 0 502 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4864

[startup+1.20098 s]
/proc/loadavg: 3.89 3.99 3.94 5/190 24258
/proc/meminfo: memFree=23150360/32951124 swapFree=67111524/67111528
[pid=24257] ppid=24255 vsize=4864 CPUtime=1.19 cores=5,7
/proc/24257/stat : 24257 (MPhaseSAT_M) R 24255 24257 23452 0 -1 4202496 821 0 0 0 119 0 0 0 25 0 1 0 286977078 4980736 758 33554432000 134512640 134829744 4291331280 18446744073709551615 134605622 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/24257/statm: 1216 758 273 78 0 502 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 4864

Child status: 10
Real time (s): 1.25431
CPU time (s): 1.25281
CPU user time (s): 1.25281
CPU system time (s): 0
CPU usage (%): 99.8806
Max. virtual memory (cumulated for all children) (KiB): 4864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.25281
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 830
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= 2

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-02 16:16:31
IDJOB=3095539
IDBENCH=82821
IDSOLVER=1522
FILE ID=node136/3095539-1301753791
RUNJOBID= node136-1301748578-23473
PBS_JOBID= 12841001
Free space on /tmp= 71508 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-3095539-1301753791/watcher-3095539-1301753791 -o /tmp/evaluation-result-3095539-1301753791/solver-3095539-1301753791 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095539-1301753791.cnf

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

MD5SUM BENCH= b179d65395dd8ffd730bf106fb19b537
RANDOM SEED=1723746794

node136.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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	: 5332.75
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		: 2666.809
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	: 5332.76
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23153972 kB
Buffers:        311268 kB
Cached:        9138812 kB
SwapCached:          4 kB
Active:        4267424 kB
Inactive:      5265376 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23153972 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:            1196 kB
Writeback:           0 kB
AnonPages:       82308 kB
Mapped:          16820 kB
Slab:           201052 kB
PageTables:       4756 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   272168 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= 71508 MiB
End job on node136 at 2011-04-02 16:16:32