Trace number 3375219

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
MPhaseSAT64 2011-05-14 (fixed)SAT 0.742886 0.744212

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S1794283924-053.SATISFIABLE.cnf
MD5SUMe6534afa60eb38f9c39ca12382cdd578
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 MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.69/0.74	c input CNF file=HOME/instance-3375219-1305449883.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#=1472 
0.69/0.74	c inative var#=0 
0.69/0.74	c free var#=338  
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#=9 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 -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 -250 -251 252 253 254 256 257 -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=0.741887

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375219-1305449883/watcher-3375219-1305449883 -o /tmp/evaluation-result-3375219-1305449883/solver-3375219-1305449883 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375219-1305449883.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: 1.19 2.16 3.21 4/321 20471
/proc/meminfo: memFree=22796300/32951124 swapFree=59305796/67111528
[pid=20471] ppid=20469 vsize=12060 CPUtime=0 cores=4,6
/proc/20471/stat : 20471 (MPhaseSAT64) R 20469 20471 19943 0 -1 4202496 428 0 0 0 0 0 0 0 21 0 1 0 735218781 12349440 368 33554432000 4194304 4479436 140735717209264 18446744073709551615 252458091626 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20471/statm: 3003 368 281 70 0 123 0

[startup+0.100385 s]
/proc/loadavg: 1.19 2.16 3.21 4/321 20471
/proc/meminfo: memFree=22796300/32951124 swapFree=59305796/67111528
[pid=20471] ppid=20469 vsize=13028 CPUtime=0.09 cores=4,6
/proc/20471/stat : 20471 (MPhaseSAT64) R 20469 20471 19943 0 -1 4202496 724 0 0 0 9 0 0 0 21 0 1 0 735218781 13340672 664 33554432000 4194304 4479436 140735717209264 18446744073709551615 4452004 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20471/statm: 3257 664 325 70 0 377 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13028

[startup+0.200398 s]
/proc/loadavg: 1.19 2.16 3.21 4/321 20471
/proc/meminfo: memFree=22796300/32951124 swapFree=59305796/67111528
[pid=20471] ppid=20469 vsize=13424 CPUtime=0.19 cores=4,6
/proc/20471/stat : 20471 (MPhaseSAT64) R 20469 20471 19943 0 -1 4202496 823 0 0 0 19 0 0 0 21 0 1 0 735218781 13746176 763 33554432000 4194304 4479436 140735717209264 18446744073709551615 4453643 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20471/statm: 3356 763 325 70 0 476 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 13424

[startup+0.300381 s]
/proc/loadavg: 1.19 2.16 3.21 4/321 20471
/proc/meminfo: memFree=22796300/32951124 swapFree=59305796/67111528
[pid=20471] ppid=20469 vsize=14384 CPUtime=0.29 cores=4,6
/proc/20471/stat : 20471 (MPhaseSAT64) R 20469 20471 19943 0 -1 4202496 1047 0 0 0 29 0 0 0 22 0 1 0 735218781 14729216 987 33554432000 4194304 4479436 140735717209264 18446744073709551615 4452093 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20471/statm: 3596 987 325 70 0 716 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14384

[startup+0.700279 s]
/proc/loadavg: 1.19 2.16 3.21 4/321 20471
/proc/meminfo: memFree=22796300/32951124 swapFree=59305796/67111528
[pid=20471] ppid=20469 vsize=14388 CPUtime=0.69 cores=4,6
/proc/20471/stat : 20471 (MPhaseSAT64) R 20469 20471 19943 0 -1 4202496 1144 0 0 0 69 0 0 0 23 0 1 0 735218781 14733312 1020 33554432000 4194304 4479436 140735717209264 18446744073709551615 4451088 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20471/statm: 3597 1020 325 70 0 717 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14388

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

[startup+0.700279 s]
/proc/loadavg: 1.19 2.16 3.21 4/321 20471
/proc/meminfo: memFree=22796300/32951124 swapFree=59305796/67111528
[pid=20471] ppid=20469 vsize=14388 CPUtime=0.69 cores=4,6
/proc/20471/stat : 20471 (MPhaseSAT64) R 20469 20471 19943 0 -1 4202496 1144 0 0 0 69 0 0 0 23 0 1 0 735218781 14733312 1020 33554432000 4194304 4479436 140735717209264 18446744073709551615 4451088 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/20471/statm: 3597 1020 325 70 0 717 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14388

Child status: 10
Real time (s): 0.744212
CPU time (s): 0.742886
CPU user time (s): 0.741887
CPU system time (s): 0.000999
CPU usage (%): 99.8218
Max. virtual memory (cumulated for all children) (KiB): 14388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.741887
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= 1156
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= 4
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node111 at 2011-05-15 10:58:03
IDJOB=3375219
IDBENCH=82928
IDSOLVER=1855
FILE ID=node111/3375219-1305449883
RUNJOBID= node111-1305449883-20435
PBS_JOBID= 13324865
Free space on /tmp= 73732 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1794283924-053.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375219-1305449883/watcher-3375219-1305449883 -o /tmp/evaluation-result-3375219-1305449883/solver-3375219-1305449883 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375219-1305449883.cnf

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

MD5SUM BENCH= e6534afa60eb38f9c39ca12382cdd578
RANDOM SEED=1093261375

node111.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		: 2666.849
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	: 5333.69
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		: 2666.849
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	: 5428.12
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		: 2666.849
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		: 2666.849
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	: 5332.86
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5332.67
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		: 2666.849
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22796580 kB
Buffers:        279148 kB
Cached:        6622572 kB
SwapCached:      13720 kB
Active:         996548 kB
Inactive:      8940364 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22796580 kB
SwapTotal:    67111528 kB
SwapFree:     59305796 kB
Dirty:            1316 kB
Writeback:           0 kB
AnonPages:     3030332 kB
Mapped:          13024 kB
Slab:           117284 kB
PageTables:      36976 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 53362872 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= 73732 MiB
End job on node111 at 2011-05-15 10:58:04