Trace number 3094437

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 0.748885 0.749332

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 

0.69/0.74	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.69/0.74	c input CNF file=HOME/instance-3094437-1301756900.cnf 
0.69/0.74	c Clause#=1491  var#=350  ratio=4 
0.69/0.74	c Simplified clause#=1491 
0.69/0.74	c XOR_varElimination deleted var#=0 clauses#=1480 
0.69/0.74	c inative var#=0 
0.69/0.74	c free var#=339  
0.69/0.74	c local search on 
0.69/0.74	c A solution found by local search 
0.69/0.74	c unfixed var#=10 var#=350 
0.69/0.74	c verified 
0.69/0.74	c 
0.69/0.74	s SATISFIABLE
0.69/0.74	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 
0.69/0.74	v 0
0.69/0.74	c 
0.69/0.74	c  Running time=0.746887

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-3094437-1301756900/watcher-3094437-1301756900 -o /tmp/evaluation-result-3094437-1301756900/solver-3094437-1301756900 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094437-1301756900.cnf 

running on 2 cores: 4,6

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: 3.39 3.84 3.64 4/185 2320
/proc/meminfo: memFree=22047084/32950928 swapFree=67111528/67111528
[pid=2320] ppid=2318 vsize=3104 CPUtime=0 cores=4,6
/proc/2320/stat : 2320 (MPhaseSAT) R 2318 2320 2263 0 -1 4202496 359 0 0 0 0 0 0 0 25 0 1 0 287286682 3178496 297 33554432000 134512640 134731564 4289768416 18446744073709551615 134578142 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/2320/statm: 776 297 237 54 0 86 0

[startup+0.0989141 s]
/proc/loadavg: 3.39 3.84 3.64 4/185 2320
/proc/meminfo: memFree=22047084/32950928 swapFree=67111528/67111528
[pid=2320] ppid=2318 vsize=3500 CPUtime=0.09 cores=4,6
/proc/2320/stat : 2320 (MPhaseSAT) R 2318 2320 2263 0 -1 4202496 492 0 0 0 9 0 0 0 25 0 1 0 287286682 3584000 430 33554432000 134512640 134731564 4289768416 18446744073709551615 134624713 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/2320/statm: 875 430 268 54 0 185 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3500

[startup+0.100914 s]
/proc/loadavg: 3.39 3.84 3.64 4/185 2320
/proc/meminfo: memFree=22047084/32950928 swapFree=67111528/67111528
[pid=2320] ppid=2318 vsize=3500 CPUtime=0.09 cores=4,6
/proc/2320/stat : 2320 (MPhaseSAT) R 2318 2320 2263 0 -1 4202496 494 0 0 0 9 0 0 0 25 0 1 0 287286682 3584000 432 33554432000 134512640 134731564 4289768416 18446744073709551615 134667331 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/2320/statm: 875 432 268 54 0 185 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3500

[startup+0.300871 s]
/proc/loadavg: 3.39 3.84 3.64 4/185 2320
/proc/meminfo: memFree=22047084/32950928 swapFree=67111528/67111528
[pid=2320] ppid=2318 vsize=3764 CPUtime=0.29 cores=4,6
/proc/2320/stat : 2320 (MPhaseSAT) R 2318 2320 2263 0 -1 4202496 564 0 0 0 29 0 0 0 25 0 1 0 287286682 3854336 502 33554432000 134512640 134731564 4289768416 18446744073709551615 4319178 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/2320/statm: 941 502 268 54 0 251 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3764

[startup+0.700784 s]
/proc/loadavg: 3.39 3.84 3.64 4/185 2320
/proc/meminfo: memFree=22047084/32950928 swapFree=67111528/67111528
[pid=2320] ppid=2318 vsize=4028 CPUtime=0.69 cores=4,6
/proc/2320/stat : 2320 (MPhaseSAT) R 2318 2320 2263 0 -1 4202496 617 0 0 0 69 0 0 0 25 0 1 0 287286682 4124672 555 33554432000 134512640 134731564 4289768416 18446744073709551615 134717502 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/2320/statm: 1007 555 268 54 0 317 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4028

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

Child status: 10
Real time (s): 0.749332
CPU time (s): 0.748885
CPU user time (s): 0.747886
CPU system time (s): 0.000999
CPU usage (%): 99.9403
Max. virtual memory (cumulated for all children) (KiB): 4028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.747886
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= 655
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= 16
involuntary context switches= 3

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node149 at 2011-04-02 17:08:20
IDJOB=3094437
IDBENCH=82919
IDSOLVER=1520
FILE ID=node149/3094437-1301756900
RUNJOBID= node149-1301756900-2282
PBS_JOBID= 12841066
Free space on /tmp= 71728 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S946474812-075.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094437-1301756900/watcher-3094437-1301756900 -o /tmp/evaluation-result-3094437-1301756900/solver-3094437-1301756900 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094437-1301756900.cnf

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

MD5SUM BENCH= 4f143e0181b25ed3751a7b54d50b3635
RANDOM SEED=697772179

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:      22047124 kB
Buffers:        361980 kB
Cached:       10204696 kB
SwapCached:          0 kB
Active:        7456560 kB
Inactive:      3175504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22047124 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             992 kB
Writeback:           0 kB
AnonPages:       65028 kB
Mapped:          16264 kB
Slab:           206540 kB
PageTables:       5420 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   228268 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 17:08:21