Trace number 3222380

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 0.787879 0.789376

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S913455068-085.SATISFIABLE.cnf
MD5SUMacba7fa37f06c6ca7b7c9c80ced58944
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.002999
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.69/0.78	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.69/0.78	c input CNF file=HOME/instance-3222380-1303305051.cnf 
0.69/0.78	c Clause#=1704  var#=400  ratio=4 
0.69/0.78	c Simplified clause#=1704 
0.69/0.78	c XOR_varElimination deleted var#=1 clauses#=1698 
0.69/0.78	c inative var#=0 
0.69/0.78	c free var#=392  
0.69/0.78	c local search on 
0.69/0.78	c A solution found by local search 
0.69/0.78	c unfixed var#=7 var#=400 
0.69/0.78	c verified 
0.69/0.78	c 
0.69/0.78	s SATISFIABLE
0.69/0.78	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 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 -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 -177 178 179 181 -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 -333 -334 335 336 -337 -338 339 -340 -341 342 -343 -344 -345 -346 347 -348 -349 350 351 -352 -353 354 -355 356 -357 -358 359 360 361 362 -363 364 -365 -366 367 368 -369 370 -371 372 -373 -374 -375 376 377 -378 -379 380 -381 -382 383 -384 -385 386 387 -388 389 -390 -391 -392 393 -394 395 396 397 398 -399 400 
0.69/0.78	v 0
0.69/0.78	c 
0.69/0.78	c  Running time=0.786880

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-3222380-1303305051/watcher-3222380-1303305051 -o /tmp/evaluation-result-3222380-1303305051/solver-3222380-1303305051 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3222380-1303305051.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: 2.04 2.01 2.00 2/177 20590
/proc/meminfo: memFree=15893416/32951124 swapFree=67111524/67111528
[pid=20590] ppid=20588 vsize=3212 CPUtime=0 cores=0,2,4,6
/proc/20590/stat : 20590 (MPhaseSAT_M) R 20588 20590 19420 0 -1 4202496 370 0 0 0 0 0 0 0 18 0 1 0 442103063 3289088 310 33554432000 134512640 134829744 4290892976 18446744073709551615 134579993 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20590/statm: 803 310 238 78 0 89 0

[startup+0.00988209 s]
/proc/loadavg: 2.04 2.01 2.00 2/177 20590
/proc/meminfo: memFree=15893416/32951124 swapFree=67111524/67111528
[pid=20590] ppid=20588 vsize=3356 CPUtime=0 cores=0,2,4,6
/proc/20590/stat : 20590 (MPhaseSAT_M) R 20588 20590 19420 0 -1 4202496 421 0 0 0 0 0 0 0 18 0 1 0 442103063 3436544 361 33554432000 134512640 134829744 4290892976 18446744073709551615 134724768 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20590/statm: 839 361 261 78 0 125 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3356

[startup+0.100894 s]
/proc/loadavg: 2.04 2.01 2.00 2/177 20590
/proc/meminfo: memFree=15893416/32951124 swapFree=67111524/67111528
[pid=20590] ppid=20588 vsize=3620 CPUtime=0.09 cores=0,2,4,6
/proc/20590/stat : 20590 (MPhaseSAT_M) R 20588 20590 19420 0 -1 4202496 502 0 0 0 9 0 0 0 18 0 1 0 442103063 3706880 442 33554432000 134512640 134829744 4290892976 18446744073709551615 134657872 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20590/statm: 905 442 271 78 0 191 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3620

[startup+0.300867 s]
/proc/loadavg: 2.04 2.01 2.00 2/177 20590
/proc/meminfo: memFree=15893416/32951124 swapFree=67111524/67111528
[pid=20590] ppid=20588 vsize=4016 CPUtime=0.29 cores=0,2,4,6
/proc/20590/stat : 20590 (MPhaseSAT_M) R 20588 20590 19420 0 -1 4202496 579 0 0 0 29 0 0 0 18 0 1 0 442103063 4112384 519 33554432000 134512640 134829744 4290892976 18446744073709551615 134678464 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20590/statm: 1004 519 271 78 0 290 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4016

[startup+0.70079 s]
/proc/loadavg: 2.04 2.01 2.00 2/177 20590
/proc/meminfo: memFree=15893416/32951124 swapFree=67111524/67111528
[pid=20590] ppid=20588 vsize=4148 CPUtime=0.69 cores=0,2,4,6
/proc/20590/stat : 20590 (MPhaseSAT_M) R 20588 20590 19420 0 -1 4202496 635 0 0 0 69 0 0 0 18 0 1 0 442103063 4247552 575 33554432000 134512640 134829744 4290892976 18446744073709551615 134614882 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20590/statm: 1037 575 271 78 0 323 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4148

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

Child status: 10
Real time (s): 0.789376
CPU time (s): 0.787879
CPU user time (s): 0.78688
CPU system time (s): 0.000999
CPU usage (%): 99.8104
Max. virtual memory (cumulated for all children) (KiB): 4148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78688
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= 677
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= 7
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-20 15:10:51
IDJOB=3222380
IDBENCH=83080
IDSOLVER=1637
FILE ID=node136/3222380-1303305051
RUNJOBID= node136-1303289364-19438
PBS_JOBID= 13049595
Free space on /tmp= 71996 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S913455068-085.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3222380-1303305051/watcher-3222380-1303305051 -o /tmp/evaluation-result-3222380-1303305051/solver-3222380-1303305051 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3222380-1303305051.cnf

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

MD5SUM BENCH= acba7fa37f06c6ca7b7c9c80ced58944
RANDOM SEED=672495045

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:      15893572 kB
Buffers:        637968 kB
Cached:       15606508 kB
SwapCached:          4 kB
Active:        8435820 kB
Inactive:      8271024 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      15893572 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             620 kB
Writeback:           0 kB
AnonPages:      462264 kB
Mapped:          16312 kB
Slab:           286776 kB
PageTables:       5468 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   724856 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= 71992 MiB
End job on node136 at 2011-04-20 15:10:52