Trace number 3220862

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 0.802877 0.803374

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S146789605-022.SATISFIABLE.cnf
MD5SUM78a9453cffac9cd7da2e41087d840fae
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009997
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 

0.79/0.80	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.80	c input CNF file=HOME/instance-3220862-1303288351.cnf 
0.79/0.80	c Clause#=1491  var#=350  ratio=4 
0.79/0.80	c Simplified clause#=1491 
0.79/0.80	c XOR_varElimination deleted var#=0 clauses#=1489 
0.79/0.80	c inative var#=0 
0.79/0.80	c free var#=342  
0.79/0.80	c local search on 
0.79/0.80	c A solution found by local search 
0.79/0.80	c unfixed var#=7 var#=350 
0.79/0.80	c verified 
0.79/0.80	c 
0.79/0.80	s SATISFIABLE
0.79/0.80	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 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 -332 333 -334 335 336 -337 -338 -339 -340 341 -342 343 344 345 346 -347 -348 -349 -350 
0.79/0.80	v 0
0.79/0.80	c 
0.79/0.80	c  Running time=0.800879

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-3220862-1303288351/watcher-3220862-1303288351 -o /tmp/evaluation-result-3220862-1303288351/solver-3220862-1303288351 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3220862-1303288351.cnf 

running on 4 cores: 1,3,5,7

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: 2.00 2.00 2.00 2/177 31768
/proc/meminfo: memFree=18380352/32951124 swapFree=67111528/67111528
[pid=31768] ppid=31766 vsize=3204 CPUtime=0 cores=1,3,5,7
/proc/31768/stat : 31768 (MPhaseSAT_M) R 31766 31768 30685 0 -1 4202496 359 0 0 0 0 0 0 0 25 0 1 0 421251051 3280896 300 33554432000 134512640 134829744 4289141680 18446744073709551615 134580666 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/31768/statm: 801 300 238 78 0 87 0

[startup+0.0995031 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 31768
/proc/meminfo: memFree=18380352/32951124 swapFree=67111528/67111528
[pid=31768] ppid=31766 vsize=3600 CPUtime=0.09 cores=1,3,5,7
/proc/31768/stat : 31768 (MPhaseSAT_M) R 31766 31768 30685 0 -1 4202496 493 0 0 0 9 0 0 0 25 0 1 0 421251051 3686400 434 33554432000 134512640 134829744 4289141680 18446744073709551615 134661405 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/31768/statm: 900 434 271 78 0 186 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3600

[startup+0.100502 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 31768
/proc/meminfo: memFree=18380352/32951124 swapFree=67111528/67111528
[pid=31768] ppid=31766 vsize=3600 CPUtime=0.09 cores=1,3,5,7
/proc/31768/stat : 31768 (MPhaseSAT_M) R 31766 31768 30685 0 -1 4202496 494 0 0 0 9 0 0 0 25 0 1 0 421251051 3686400 435 33554432000 134512640 134829744 4289141680 18446744073709551615 134669249 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/31768/statm: 900 435 271 78 0 186 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3600

[startup+0.300465 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 31768
/proc/meminfo: memFree=18380352/32951124 swapFree=67111528/67111528
[pid=31768] ppid=31766 vsize=3864 CPUtime=0.29 cores=1,3,5,7
/proc/31768/stat : 31768 (MPhaseSAT_M) R 31766 31768 30685 0 -1 4202496 568 0 0 0 29 0 0 0 25 0 1 0 421251051 3956736 509 33554432000 134512640 134829744 4289141680 18446744073709551615 134661787 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/31768/statm: 966 509 271 78 0 252 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3864

[startup+0.700393 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 31768
/proc/meminfo: memFree=18380352/32951124 swapFree=67111528/67111528
[pid=31768] ppid=31766 vsize=4128 CPUtime=0.69 cores=1,3,5,7
/proc/31768/stat : 31768 (MPhaseSAT_M) R 31766 31768 30685 0 -1 4202496 618 0 0 0 69 0 0 0 25 0 1 0 421251051 4227072 559 33554432000 134512640 134829744 4289141680 18446744073709551615 134661446 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/31768/statm: 1032 559 271 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

[startup+0.800373 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 31768
/proc/meminfo: memFree=18380352/32951124 swapFree=67111528/67111528
[pid=31768] ppid=31766 vsize=4260 CPUtime=0.79 cores=1,3,5,7
/proc/31768/stat : 31768 (MPhaseSAT_M) R 31766 31768 30685 0 -1 4202496 646 0 0 0 79 0 0 0 25 0 1 0 421251051 4362240 587 33554432000 134512640 134829744 4289141680 18446744073709551615 134605910 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/31768/statm: 1065 587 274 78 0 351 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4260

Child status: 10
Real time (s): 0.803374
CPU time (s): 0.802877
CPU user time (s): 0.801878
CPU system time (s): 0.000999
CPU usage (%): 99.9381
Max. virtual memory (cumulated for all children) (KiB): 4260

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.801878
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= 656
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= 2

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node147 at 2011-04-20 10:32:31
IDJOB=3220862
IDBENCH=82827
IDSOLVER=1637
FILE ID=node147/3220862-1303288351
RUNJOBID= node147-1303268318-30704
PBS_JOBID= 13049527
Free space on /tmp= 72260 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S146789605-022.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220862-1303288351/watcher-3220862-1303288351 -o /tmp/evaluation-result-3220862-1303288351/solver-3220862-1303288351 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3220862-1303288351.cnf

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

MD5SUM BENCH= 78a9453cffac9cd7da2e41087d840fae
RANDOM SEED=473372107

node147.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		: 2666.836
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	: 5333.67
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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	: 5332.75
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		: 2666.836
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		: 2666.836
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	: 5332.76
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		: 2666.836
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		: 2666.836
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:     32951124 kB
MemFree:      18380632 kB
Buffers:        716044 kB
Cached:       13010168 kB
SwapCached:          0 kB
Active:        6028872 kB
Inactive:      8182504 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18380632 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             668 kB
Writeback:           0 kB
AnonPages:      484924 kB
Mapped:          16512 kB
Slab:           296160 kB
PageTables:       5552 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   634144 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= 72260 MiB
End job on node147 at 2011-04-20 10:32:32