Trace number 3266231

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
MPhaseSAT64 2011-03-03SAT 0.803877 0.804696

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 benchmark0.073988
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 

0.79/0.80	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.80	c input CNF file=HOME/instance-3266231-1303576739.cnf 
0.79/0.80	c Clause#=2924  var#=170  ratio=17 
0.79/0.80	c Simplified clause#=2924 
0.79/0.80	c XOR_varElimination deleted var#=0 clauses#=2924 
0.79/0.80	c inative var#=0 
0.79/0.80	c free var#=170  
0.79/0.80	c local search on 
0.79/0.80	c A solution found by local search 
0.79/0.80	c unfixed var#=0 var#=170 
0.79/0.80	c verified 
0.79/0.80	c 
0.79/0.80	s SATISFIABLE
0.79/0.80	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 
0.79/0.80	v 0
0.79/0.80	c 
0.79/0.80	c  Running time=0.802878

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-3266231-1303576739/watcher-3266231-1303576739 -o /tmp/evaluation-result-3266231-1303576739/solver-3266231-1303576739 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3266231-1303576739.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: 2.77 1.77 2.50 4/189 17213
/proc/meminfo: memFree=15529340/32950928 swapFree=67111528/67111528
[pid=17213] ppid=17211 vsize=3340 CPUtime=0 cores=5,7
/proc/17213/stat : 17213 (MPhaseSAT64) R 17211 17213 15849 0 -1 4202496 389 0 0 0 0 0 0 0 25 0 1 0 469272710 3420160 329 33554432000 134512640 134761588 4291814528 18446744073709551615 134536592 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/17213/statm: 835 329 236 61 0 138 0

[startup+0.100135 s]
/proc/loadavg: 2.77 1.77 2.50 4/189 17213
/proc/meminfo: memFree=15529340/32950928 swapFree=67111528/67111528
[pid=17213] ppid=17211 vsize=3772 CPUtime=0.09 cores=5,7
/proc/17213/stat : 17213 (MPhaseSAT64) R 17211 17213 15849 0 -1 4202496 571 0 0 0 9 0 0 0 25 0 1 0 469272710 3862528 508 33554432000 134512640 134761588 4291814528 18446744073709551615 134747192 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/17213/statm: 943 508 273 61 0 246 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3772

[startup+0.200117 s]
/proc/loadavg: 2.77 1.77 2.50 4/189 17213
/proc/meminfo: memFree=15529340/32950928 swapFree=67111528/67111528
[pid=17213] ppid=17211 vsize=3972 CPUtime=0.19 cores=5,7
/proc/17213/stat : 17213 (MPhaseSAT64) R 17211 17213 15849 0 -1 4202496 721 0 0 0 19 0 0 0 25 0 1 0 469272710 4067328 543 33554432000 134512640 134761588 4291814528 18446744073709551615 134748612 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/17213/statm: 993 543 274 61 0 296 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 3972

[startup+0.3001 s]
/proc/loadavg: 2.77 1.77 2.50 4/189 17213
/proc/meminfo: memFree=15529340/32950928 swapFree=67111528/67111528
[pid=17213] ppid=17211 vsize=4420 CPUtime=0.29 cores=5,7
/proc/17213/stat : 17213 (MPhaseSAT64) R 17211 17213 15849 0 -1 4202496 849 0 0 0 29 0 0 0 25 0 1 0 469272710 4526080 671 33554432000 134512640 134761588 4291814528 18446744073709551615 134747201 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/17213/statm: 1105 671 274 61 0 408 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4420

[startup+0.701029 s]
/proc/loadavg: 2.77 1.77 2.50 4/189 17213
/proc/meminfo: memFree=15529340/32950928 swapFree=67111528/67111528
[pid=17213] ppid=17211 vsize=5640 CPUtime=0.69 cores=5,7
/proc/17213/stat : 17213 (MPhaseSAT64) R 17211 17213 15849 0 -1 4202496 1125 0 0 0 69 0 0 0 25 0 1 0 469272710 5775360 947 33554432000 134512640 134761588 4291814528 18446744073709551615 134603228 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/17213/statm: 1410 947 277 61 0 713 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5640

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

[startup+0.801012 s]
/proc/loadavg: 2.77 1.77 2.50 4/189 17213
/proc/meminfo: memFree=15529340/32950928 swapFree=67111528/67111528
[pid=17213] ppid=17211 vsize=5640 CPUtime=0.79 cores=5,7
/proc/17213/stat : 17213 (MPhaseSAT64) R 17211 17213 15849 0 -1 4202496 1125 0 0 0 79 0 0 0 25 0 1 0 469272710 5775360 947 33554432000 134512640 134761588 4291814528 18446744073709551615 134605213 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/17213/statm: 1410 947 277 61 0 713 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5640

Child status: 10
Real time (s): 0.804696
CPU time (s): 0.803877
CPU user time (s): 0.801878
CPU system time (s): 0.001999
CPU usage (%): 99.8982
Max. virtual memory (cumulated for all children) (KiB): 5640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.801878
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1134
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 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node122 at 2011-04-23 18:38:59
IDJOB=3266231
IDBENCH=87447
IDSOLVER=1521
FILE ID=node122/3266231-1303576739
RUNJOBID= node122-1303576683-17011
PBS_JOBID= 13150292
Free space on /tmp= 70816 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_4300_4300_170.shuffled.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266231-1303576739/watcher-3266231-1303576739 -o /tmp/evaluation-result-3266231-1303576739/solver-3266231-1303576739 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3266231-1303576739.cnf

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

MD5SUM BENCH= 82789f57e506af1994452e76af2dcbf0
RANDOM SEED=171706128

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.83
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      15529480 kB
Buffers:       1775916 kB
Cached:       14998680 kB
SwapCached:          0 kB
Active:        5469616 kB
Inactive:     11400144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      15529480 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             412 kB
Writeback:          24 kB
AnonPages:       94284 kB
Mapped:          16852 kB
Slab:           487892 kB
PageTables:       5456 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   279624 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= 70816 MiB
End job on node122 at 2011-04-23 18:39:00