Trace number 3094476

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 2011-02-15SAT 0.836871 0.838665

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S183128297-005.SATISFIABLE.cnf
MD5SUMf0ea1852e91ab44abb725179e04ad108
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
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 

0.79/0.83	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.83	c input CNF file=HOME/instance-3094476-1301757669.cnf 
0.79/0.83	c Clause#=1704  var#=400  ratio=4 
0.79/0.83	c Simplified clause#=1704 
0.79/0.83	c XOR_varElimination deleted var#=0 clauses#=1695 
0.79/0.83	c inative var#=0 
0.79/0.83	c free var#=391  
0.79/0.83	c local search on 
0.79/0.83	c A solution found by local search 
0.79/0.83	c unfixed var#=8 var#=400 
0.79/0.83	c verified 
0.79/0.83	c 
0.79/0.83	s SATISFIABLE
0.79/0.83	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 -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 -333 -334 -335 -336 -337 -338 339 340 -341 -342 343 -344 -345 -346 -347 349 350 -351 -352 353 -354 355 -356 357 358 -359 -360 -361 -362 -363 -364 365 366 368 369 -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 
0.79/0.83	v 0
0.79/0.83	c 
0.79/0.83	c  Running time=0.835872

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-3094476-1301757669/watcher-3094476-1301757669 -o /tmp/evaluation-result-3094476-1301757669/solver-3094476-1301757669 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094476-1301757669.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: 4.00 3.99 3.83 4/189 2756
/proc/meminfo: memFree=22034404/32950928 swapFree=67111528/67111528
[pid=2756] ppid=2754 vsize=3036 CPUtime=0 cores=1,3
/proc/2756/stat : 2756 (MPhaseSAT) R 2754 2756 2263 0 -1 4202496 343 0 0 0 0 0 0 0 18 0 1 0 287363581 3108864 281 33554432000 134512640 134731564 4291124224 18446744073709551615 134559237 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2756/statm: 759 281 232 54 0 69 0

[startup+0.0901961 s]
/proc/loadavg: 4.00 3.99 3.83 4/189 2756
/proc/meminfo: memFree=22034404/32950928 swapFree=67111528/67111528
[pid=2756] ppid=2754 vsize=3520 CPUtime=0.08 cores=1,3
/proc/2756/stat : 2756 (MPhaseSAT) R 2754 2756 2263 0 -1 4202496 500 0 0 0 8 0 0 0 18 0 1 0 287363581 3604480 438 33554432000 134512640 134731564 4291124224 18446744073709551615 4030395 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2756/statm: 880 438 268 54 0 190 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3520

[startup+0.100152 s]
/proc/loadavg: 4.00 3.99 3.83 4/189 2756
/proc/meminfo: memFree=22034404/32950928 swapFree=67111528/67111528
[pid=2756] ppid=2754 vsize=3520 CPUtime=0.09 cores=1,3
/proc/2756/stat : 2756 (MPhaseSAT) R 2754 2756 2263 0 -1 4202496 501 0 0 0 9 0 0 0 18 0 1 0 287363581 3604480 439 33554432000 134512640 134731564 4291124224 18446744073709551615 134717132 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2756/statm: 880 439 268 54 0 190 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3520

[startup+0.301124 s]
/proc/loadavg: 4.00 3.99 3.83 4/189 2756
/proc/meminfo: memFree=22034404/32950928 swapFree=67111528/67111528
[pid=2756] ppid=2754 vsize=3784 CPUtime=0.29 cores=1,3
/proc/2756/stat : 2756 (MPhaseSAT) R 2754 2756 2263 0 -1 4202496 573 0 0 0 29 0 0 0 18 0 1 0 287363581 3874816 511 33554432000 134512640 134731564 4291124224 18446744073709551615 134659349 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2756/statm: 946 511 268 54 0 256 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3784

[startup+0.701044 s]
/proc/loadavg: 4.00 3.99 3.83 4/189 2756
/proc/meminfo: memFree=22034404/32950928 swapFree=67111528/67111528
[pid=2756] ppid=2754 vsize=4048 CPUtime=0.69 cores=1,3
/proc/2756/stat : 2756 (MPhaseSAT) R 2754 2756 2263 0 -1 4202496 628 0 0 0 69 0 0 0 18 0 1 0 287363581 4145152 566 33554432000 134512640 134731564 4291124224 18446744073709551615 134655516 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2756/statm: 1012 566 268 54 0 322 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4048

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

[startup+0.801018 s]
/proc/loadavg: 4.00 3.99 3.83 4/189 2756
/proc/meminfo: memFree=22034404/32950928 swapFree=67111528/67111528
[pid=2756] ppid=2754 vsize=4180 CPUtime=0.79 cores=1,3
/proc/2756/stat : 2756 (MPhaseSAT) R 2754 2756 2263 0 -1 4202496 661 0 0 0 79 0 0 0 18 0 1 0 287363581 4280320 599 33554432000 134512640 134731564 4291124224 18446744073709551615 134605464 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/2756/statm: 1045 599 271 54 0 355 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4180

Child status: 10
Real time (s): 0.838665
CPU time (s): 0.836871
CPU user time (s): 0.835872
CPU system time (s): 0.000999
CPU usage (%): 99.7861
Max. virtual memory (cumulated for all children) (KiB): 4180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.835872
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= 671
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= 6

runsolver used 0 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node149 at 2011-04-02 17:21:09
IDJOB=3094476
IDBENCH=82958
IDSOLVER=1520
FILE ID=node149/3094476-1301757669
RUNJOBID= node149-1301756900-2283
PBS_JOBID= 12841066
Free space on /tmp= 71728 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S183128297-005.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094476-1301757669/watcher-3094476-1301757669 -o /tmp/evaluation-result-3094476-1301757669/solver-3094476-1301757669 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094476-1301757669.cnf

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

MD5SUM BENCH= f0ea1852e91ab44abb725179e04ad108
RANDOM SEED=234214813

node149.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		: 2666.806
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		: 2666.806
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	: 5332.83
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		: 2666.806
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	: 5332.83
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		: 2666.806
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	: 5332.73
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		: 2666.806
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	: 5332.82
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      22034668 kB
Buffers:        362328 kB
Cached:       10206100 kB
SwapCached:          0 kB
Active:        7471984 kB
Inactive:      3175524 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22034668 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:              72 kB
Writeback:           0 kB
AnonPages:       79116 kB
Mapped:          16916 kB
Slab:           206108 kB
PageTables:       4916 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   262840 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= 71724 MiB
End job on node149 at 2011-04-02 17:21:10