Trace number 3094991

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 0.841871 0.843231

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S1914191877-004.SATISFIABLE.cnf
MD5SUMb24f876b5044256ac72c44cf51bd3297
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables350
Number of clauses1491
Sum of the clauses size4473
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31491
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.79/0.84	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.79/0.84	c input CNF file=HOME/instance-3094991-1301754178.cnf 
0.79/0.84	c Clause#=1491  var#=350  ratio=4 
0.79/0.84	c Simplified clause#=1491 
0.79/0.84	c XOR_varElimination deleted var#=1 clauses#=1490 
0.79/0.84	c inative var#=0 
0.79/0.84	c free var#=339  
0.79/0.84	c local search on 
0.79/0.84	c A solution found by local search 
0.79/0.84	c unfixed var#=11 var#=350 
0.79/0.84	c verified 
0.79/0.84	c 
0.79/0.84	s SATISFIABLE
0.79/0.84	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 -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 -220 221 -222 223 224 -225 -226 227 228 229 -230 -231 232 -233 234 -235 -236 -237 238 239 240 241 242 -243 244 245 -246 -247 -248 -249 -250 -251 252 -253 254 -255 -256 -257 258 259 260 -261 262 -263 -264 -265 -266 -267 -268 -269 270 271 272 -273 -274 -275 -276 277 -278 -279 -280 -281 -282 -283 -284 285 286 -287 288 -289 290 -291 -292 -293 294 -295 -296 297 298 299 300 -301 -302 -303 304 305 306 -307 -308 -309 310 311 -312 313 314 315 316 -317 -318 -319 320 -321 322 323 324 -325 326 -327 328 329 330 331 -332 334 -335 -336 337 -338 -339 340 -341 -342 -343 344 345 -346 347 348 349 -350 
0.79/0.84	v 0
0.79/0.84	c 
0.79/0.84	c  Running time=0.840872

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-3094991-1301754178/watcher-3094991-1301754178 -o /tmp/evaluation-result-3094991-1301754178/solver-3094991-1301754178 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094991-1301754178.cnf 

running on 2 cores: 1,3

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: 3.91 3.97 3.93 4/189 14988
/proc/meminfo: memFree=21542464/32950928 swapFree=67111528/67111528
[pid=14988] ppid=14986 vsize=3132 CPUtime=0 cores=1,3
/proc/14988/stat : 14988 (MPhaseSAT64) R 14986 14988 14119 0 -1 4202496 361 0 0 0 0 0 0 0 25 0 1 0 287016540 3207168 300 33554432000 134512640 134761588 4291854656 18446744073709551615 134580523 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14988/statm: 783 300 238 61 0 86 0

[startup+0.0432039 s]
/proc/loadavg: 3.91 3.97 3.93 4/189 14988
/proc/meminfo: memFree=21542464/32950928 swapFree=67111528/67111528
[pid=14988] ppid=14986 vsize=3500 CPUtime=0.04 cores=1,3
/proc/14988/stat : 14988 (MPhaseSAT64) R 14986 14988 14119 0 -1 4202496 486 0 0 0 4 0 0 0 25 0 1 0 287016540 3584000 425 33554432000 134512640 134761588 4291854656 18446744073709551615 134747267 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14988/statm: 875 425 273 61 0 178 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3500

[startup+0.100195 s]
/proc/loadavg: 3.91 3.97 3.93 4/189 14988
/proc/meminfo: memFree=21542464/32950928 swapFree=67111528/67111528
[pid=14988] ppid=14986 vsize=3952 CPUtime=0.09 cores=1,3
/proc/14988/stat : 14988 (MPhaseSAT64) R 14986 14988 14119 0 -1 4202496 599 0 0 0 9 0 0 0 25 0 1 0 287016540 4046848 538 33554432000 134512640 134761588 4291854656 18446744073709551615 134616752 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14988/statm: 988 538 273 61 0 291 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3952

[startup+0.300161 s]
/proc/loadavg: 3.91 3.97 3.93 4/189 14988
/proc/meminfo: memFree=21542464/32950928 swapFree=67111528/67111528
[pid=14988] ppid=14986 vsize=4736 CPUtime=0.29 cores=1,3
/proc/14988/stat : 14988 (MPhaseSAT64) R 14986 14988 14119 0 -1 4202496 812 0 0 0 29 0 0 0 25 0 1 0 287016540 4849664 751 33554432000 134512640 134761588 4291854656 18446744073709551615 134616752 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14988/statm: 1184 751 274 61 0 487 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4736

[startup+0.70015 s]
/proc/loadavg: 3.91 3.97 3.93 4/189 14988
/proc/meminfo: memFree=21542464/32950928 swapFree=67111528/67111528
[pid=14988] ppid=14986 vsize=5832 CPUtime=0.69 cores=1,3
/proc/14988/stat : 14988 (MPhaseSAT64) R 14986 14988 14119 0 -1 4202496 1150 0 0 0 69 0 0 0 25 0 1 0 287016540 5971968 993 33554432000 134512640 134761588 4291854656 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14988/statm: 1458 993 274 61 0 761 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5832

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

[startup+0.801078 s]
/proc/loadavg: 3.91 3.97 3.93 4/189 14988
/proc/meminfo: memFree=21542464/32950928 swapFree=67111528/67111528
[pid=14988] ppid=14986 vsize=5832 CPUtime=0.79 cores=1,3
/proc/14988/stat : 14988 (MPhaseSAT64) R 14986 14988 14119 0 -1 4202496 1150 0 0 0 79 0 0 0 25 0 1 0 287016540 5971968 993 33554432000 134512640 134761588 4291854656 18446744073709551615 134747265 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/14988/statm: 1458 993 274 61 0 761 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 5832

Child status: 10
Real time (s): 0.843231
CPU time (s): 0.841871
CPU user time (s): 0.840872
CPU system time (s): 0.000999
CPU usage (%): 99.8387
Max. virtual memory (cumulated for all children) (KiB): 5832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.840872
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= 1163
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= 3

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node126 at 2011-04-02 16:22:58
IDJOB=3094991
IDBENCH=82873
IDSOLVER=1521
FILE ID=node126/3094991-1301754178
RUNJOBID= node126-1301748569-14139
PBS_JOBID= 12841011
Free space on /tmp= 71688 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1914191877-004.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094991-1301754178/watcher-3094991-1301754178 -o /tmp/evaluation-result-3094991-1301754178/solver-3094991-1301754178 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094991-1301754178.cnf

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

MD5SUM BENCH= b24f876b5044256ac72c44cf51bd3297
RANDOM SEED=1764406217

node126.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		: 2666.783
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	: 5333.56
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		: 2666.783
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		: 2666.783
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	: 5332.74
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		: 2666.783
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	: 5332.74
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		: 2666.783
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		: 2666.783
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		: 2666.783
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		: 2666.783
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      21542620 kB
Buffers:        348600 kB
Cached:       10709584 kB
SwapCached:          0 kB
Active:        7258512 kB
Inactive:      3881992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21542620 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             432 kB
Writeback:           0 kB
AnonPages:       82136 kB
Mapped:          17044 kB
Slab:           203948 kB
PageTables:       5272 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   268016 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= 71688 MiB
End job on node126 at 2011-04-02 16:22:59