Trace number 3095637

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 0.753884 0.754318

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S946474812-075.SATISFIABLE.cnf
MD5SUM4f143e0181b25ed3751a7b54d50b3635
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
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 

0.69/0.75	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.69/0.75	c input CNF file=HOME/instance-3095637-1301754414.cnf 
0.69/0.75	c Clause#=1491  var#=350  ratio=4 
0.69/0.75	c Simplified clause#=1491 
0.69/0.75	c XOR_varElimination deleted var#=0 clauses#=1480 
0.69/0.75	c inative var#=0 
0.69/0.75	c free var#=339  
0.69/0.75	c local search on 
0.69/0.75	c A solution found by local search 
0.69/0.75	c unfixed var#=10 var#=350 
0.69/0.75	c verified 
0.69/0.75	c 
0.69/0.75	s SATISFIABLE
0.69/0.75	v 1 2 3 -4 -5 -6 7 8 9 10 11 -12 -13 -14 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 -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 -333 -334 -335 336 -337 -338 339 -340 341 342 343 344 -345 -346 -347 348 -349 -350 
0.69/0.75	v 0
0.69/0.75	c 
0.69/0.75	c  Running time=0.750886

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-3095637-1301754414/watcher-3095637-1301754414 -o /tmp/evaluation-result-3095637-1301754414/solver-3095637-1301754414 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095637-1301754414.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: 4.02 4.01 3.95 4/189 24383
/proc/meminfo: memFree=23090440/32951124 swapFree=67111524/67111528
[pid=24383] ppid=24381 vsize=3204 CPUtime=0 cores=1,3
/proc/24383/stat : 24383 (MPhaseSAT_M) R 24381 24383 23452 0 -1 4202496 363 0 0 0 0 0 0 0 25 0 1 0 287039357 3280896 301 33554432000 134512640 134829744 4290060256 18446744073709551615 12506620 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24383/statm: 801 301 238 78 0 87 0

[startup+0.0484191 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24383
/proc/meminfo: memFree=23090440/32951124 swapFree=67111524/67111528
[pid=24383] ppid=24381 vsize=3600 CPUtime=0.04 cores=1,3
/proc/24383/stat : 24383 (MPhaseSAT_M) R 24381 24383 23452 0 -1 4202496 479 0 0 0 4 0 0 0 25 0 1 0 287039357 3686400 417 33554432000 134512640 134829744 4290060256 18446744073709551615 134633116 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24383/statm: 900 417 270 78 0 186 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3600

[startup+0.10042 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24383
/proc/meminfo: memFree=23090440/32951124 swapFree=67111524/67111528
[pid=24383] ppid=24381 vsize=3600 CPUtime=0.09 cores=1,3
/proc/24383/stat : 24383 (MPhaseSAT_M) R 24381 24383 23452 0 -1 4202496 496 0 0 0 9 0 0 0 25 0 1 0 287039357 3686400 434 33554432000 134512640 134829744 4290060256 18446744073709551615 134722630 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24383/statm: 900 434 270 78 0 186 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3600

[startup+0.300375 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24383
/proc/meminfo: memFree=23090440/32951124 swapFree=67111524/67111528
[pid=24383] ppid=24381 vsize=3864 CPUtime=0.29 cores=1,3
/proc/24383/stat : 24383 (MPhaseSAT_M) R 24381 24383 23452 0 -1 4202496 568 0 0 0 29 0 0 0 25 0 1 0 287039357 3956736 506 33554432000 134512640 134829744 4290060256 18446744073709551615 134661122 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24383/statm: 966 506 270 78 0 252 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3864

[startup+0.700302 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24383
/proc/meminfo: memFree=23090440/32951124 swapFree=67111524/67111528
[pid=24383] ppid=24381 vsize=4128 CPUtime=0.69 cores=1,3
/proc/24383/stat : 24383 (MPhaseSAT_M) R 24381 24383 23452 0 -1 4202496 621 0 0 0 69 0 0 0 25 0 1 0 287039357 4227072 559 33554432000 134512640 134829744 4290060256 18446744073709551615 134661113 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24383/statm: 1032 559 270 78 0 318 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4128

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

Child status: 10
Real time (s): 0.754318
CPU time (s): 0.753884
CPU user time (s): 0.751885
CPU system time (s): 0.001999
CPU usage (%): 99.9425
Max. virtual memory (cumulated for all children) (KiB): 4128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.751885
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= 659
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= 13

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-02 16:26:54
IDJOB=3095637
IDBENCH=82919
IDSOLVER=1522
FILE ID=node136/3095637-1301754414
RUNJOBID= node136-1301748578-23472
PBS_JOBID= 12841001
Free space on /tmp= 71508 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S946474812-075.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095637-1301754414/watcher-3095637-1301754414 -o /tmp/evaluation-result-3095637-1301754414/solver-3095637-1301754414 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095637-1301754414.cnf

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

MD5SUM BENCH= 4f143e0181b25ed3751a7b54d50b3635
RANDOM SEED=487688449

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:      23090596 kB
Buffers:        311528 kB
Cached:        9139120 kB
SwapCached:          4 kB
Active:        4330388 kB
Inactive:      5265648 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23090596 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             392 kB
Writeback:           0 kB
AnonPages:      145884 kB
Mapped:          17012 kB
Slab:           200880 kB
PageTables:       5424 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   338568 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 16:26:55