Trace number 3160057

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
synit_sat 2011-03-03SAT 0.277957 0.279229

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 benchmark0.004999
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 

0.00/0.00	c start  0 total 0
0.00/0.00	c Find Units :          0
0.00/0.00	c Find Invs  :          0
0.00/0.00	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.00	c Find Xors  :          0 AvgFaninNum: nan
0.00/0.00	c Find Ite   :          0
0.00/0.00	c UnDirect variable: 0
0.00/0.00	c UnDirect to Direct Gate: 0
0.00/0.00	c Forced Direct Gate: 0 Unuse unDirect Gate: 0
0.00/0.00	c Break Cycle : 0
0.00/0.00	c Total Root : 0 Undef Var: 400
0.00/0.00	c After covering, Total Root: 0 Leaf: 0
0.00/0.00	c Variable( cover/uncovered/unused ): 0 400 0
0.00/0.00	c Unit Clauses: 0
0.00/0.00	c Binary Clauses( cover/uncovered ): 0 0
0.00/0.00	c Clauses( cover/uncovered ): 0 1704
0.00/0.00	c Total Clauses( cover/uncovered ): 0 1704 0%
0.00/0.00	c Covered Ands: 0 Invs: 0 Xors: 0 Ites: 0
0.00/0.00	c Uncover Clauses avg size: 3 max size: 3
0.00/0.00	c Final circuit: i/l/o/s     400       0    1704      3398
0.00/0.00	c cover rate 0
0.00/0.00	c rocky end  0 total 0
0.00/0.01	c covering time  0 total 0
0.19/0.27	c solve time  0.27 total 0.27
0.19/0.27	s SATISFIABLE 
0.19/0.27	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 -348 349 350 351 -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

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-3160057-1301744981/watcher-3160057-1301744981 -o /tmp/evaluation-result-3160057-1301744981/solver-3160057-1301744981 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3160057-1301744981.cnf 639327892 

running on 2 cores: 5,7

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: 0.85 1.75 2.89 4/183 28256
/proc/meminfo: memFree=20063216/32951124 swapFree=67111528/67111528
[pid=28256] ppid=28254 vsize=29716 CPUtime=0 cores=5,7
/proc/28256/stat : 28256 (synit_sat) R 28254 28256 27353 0 -1 4202496 1930 0 0 0 0 0 0 0 19 0 1 0 286098590 30429184 1867 33554432000 4194304 4947581 140733845812960 18446744073709551615 4308784 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/28256/statm: 7429 1877 320 184 0 2304 0

[startup+0.0229859 s]
/proc/loadavg: 0.85 1.75 2.89 4/183 28256
/proc/meminfo: memFree=20063216/32951124 swapFree=67111528/67111528
[pid=28256] ppid=28254 vsize=40952 CPUtime=0.01 cores=5,7
/proc/28256/stat : 28256 (synit_sat) R 28254 28256 27353 0 -1 4202496 2864 0 0 0 1 0 0 0 20 0 1 0 286098590 41934848 2797 33554432000 4194304 4947581 140733845812960 18446744073709551615 4400163 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/28256/statm: 10238 2797 453 184 0 5113 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 40952

[startup+0.10097 s]
/proc/loadavg: 0.85 1.75 2.89 4/183 28256
/proc/meminfo: memFree=20063216/32951124 swapFree=67111528/67111528
[pid=28256] ppid=28254 vsize=41976 CPUtime=0.09 cores=5,7
/proc/28256/stat : 28256 (synit_sat) R 28254 28256 27353 0 -1 4202496 2965 0 0 0 9 0 0 0 20 0 1 0 286098590 42983424 2898 33554432000 4194304 4947581 140733845812960 18446744073709551615 4399472 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/28256/statm: 10494 2898 455 184 0 5369 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 41976

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

[startup+0.200955 s]
/proc/loadavg: 0.85 1.75 2.89 4/183 28256
/proc/meminfo: memFree=20063216/32951124 swapFree=67111528/67111528
[pid=28256] ppid=28254 vsize=50432 CPUtime=0.19 cores=5,7
/proc/28256/stat : 28256 (synit_sat) R 28254 28256 27353 0 -1 4202496 3130 0 0 0 19 0 0 0 20 0 1 0 286098590 51642368 3063 33554432000 4194304 4947581 140733845812960 18446744073709551615 4352433 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/28256/statm: 12608 3063 455 184 0 7483 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 50432

Child status: 0
Real time (s): 0.279229
CPU time (s): 0.277957
CPU user time (s): 0.272958
CPU system time (s): 0.004999
CPU usage (%): 99.5444
Max. virtual memory (cumulated for all children) (KiB): 50432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.272958
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3382
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= 4

runsolver used 0 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node105 at 2011-04-02 13:49:42
IDJOB=3160057
IDBENCH=83080
IDSOLVER=1571
FILE ID=node105/3160057-1301744981
RUNJOBID= node105-1301744981-28228
PBS_JOBID= 12840963
Free space on /tmp= 71480 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S913455068-085.SATISFIABLE.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3160057-1301744981/watcher-3160057-1301744981 -o /tmp/evaluation-result-3160057-1301744981/solver-3160057-1301744981 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3160057-1301744981.cnf 639327892

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

MD5SUM BENCH= acba7fa37f06c6ca7b7c9c80ced58944
RANDOM SEED=639327892

node105.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		: 2666.825
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	: 5333.65
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		: 2666.825
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	: 5226.15
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		: 2666.825
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		: 2666.825
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		: 2666.825
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	: 5410.70
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		: 2666.825
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	: 5332.74
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		: 2666.825
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		: 2666.825
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:      20063900 kB
Buffers:        366880 kB
Cached:       12170608 kB
SwapCached:          0 kB
Active:        7515820 kB
Inactive:      5092572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20063900 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7132 kB
Writeback:           0 kB
AnonPages:       69852 kB
Mapped:          15008 kB
Slab:           215544 kB
PageTables:       4732 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   217332 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= 71476 MiB
End job on node105 at 2011-04-02 13:49:42