Trace number 3222314

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 0.762883 0.762166

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S87195105-042.SATISFIABLE.cnf
MD5SUMada5b04e33de45b97800e1e97a28e189
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.002999
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 

0.69/0.76	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.69/0.76	c input CNF file=HOME/instance-3222314-1303304885.cnf 
0.69/0.76	c Clause#=1491  var#=350  ratio=4 
0.69/0.76	c Simplified clause#=1491 
0.69/0.76	c XOR_varElimination deleted var#=0 clauses#=1486 
0.69/0.76	c inative var#=0 
0.69/0.76	c free var#=335  
0.69/0.76	c local search on 
0.69/0.76	c A solution found by local search 
0.69/0.76	c unfixed var#=14 var#=350 
0.69/0.76	c verified 
0.69/0.76	c 
0.69/0.76	s SATISFIABLE
0.69/0.76	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 
0.69/0.76	v 0
0.69/0.76	c 
0.69/0.76	c  Running time=0.759885

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-3222314-1303304885/watcher-3222314-1303304885 -o /tmp/evaluation-result-3222314-1303304885/solver-3222314-1303304885 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3222314-1303304885.cnf 

running on 4 cores: 0,2,4,6

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: 1.33 1.66 1.87 2/177 2041
/proc/meminfo: memFree=19108164/32951124 swapFree=67111528/67111528
[pid=2041] ppid=2039 vsize=3136 CPUtime=0 cores=0,2,4,6
/proc/2041/stat : 2041 (MPhaseSAT_M) R 2039 2041 436 0 -1 4202496 353 0 0 0 0 0 0 0 25 0 1 0 442088941 3211264 293 33554432000 134512640 134829744 4294541776 18446744073709551615 10052359 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2041/statm: 806 295 236 78 0 92 0

[startup+0.0350031 s]
/proc/loadavg: 1.33 1.66 1.87 2/177 2041
/proc/meminfo: memFree=19108164/32951124 swapFree=67111528/67111528
[pid=2041] ppid=2039 vsize=3468 CPUtime=0.03 cores=0,2,4,6
/proc/2041/stat : 2041 (MPhaseSAT_M) R 2039 2041 436 0 -1 4202496 463 0 0 0 3 0 0 0 25 0 1 0 442088941 3551232 403 33554432000 134512640 134829744 4294541776 18446744073709551615 134658127 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2041/statm: 867 403 271 78 0 153 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3468

[startup+0.101018 s]
/proc/loadavg: 1.33 1.66 1.87 2/177 2041
/proc/meminfo: memFree=19108164/32951124 swapFree=67111528/67111528
[pid=2041] ppid=2039 vsize=3600 CPUtime=0.09 cores=0,2,4,6
/proc/2041/stat : 2041 (MPhaseSAT_M) R 2039 2041 436 0 -1 4202496 496 0 0 0 9 0 0 0 25 0 1 0 442088941 3686400 436 33554432000 134512640 134829744 4294541776 18446744073709551615 9765191 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2041/statm: 900 436 271 78 0 186 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3600

[startup+0.300981 s]
/proc/loadavg: 1.33 1.66 1.87 2/177 2041
/proc/meminfo: memFree=19108164/32951124 swapFree=67111528/67111528
[pid=2041] ppid=2039 vsize=3864 CPUtime=0.29 cores=0,2,4,6
/proc/2041/stat : 2041 (MPhaseSAT_M) R 2039 2041 436 0 -1 4202496 570 0 0 0 29 0 0 0 25 0 1 0 442088941 3956736 510 33554432000 134512640 134829744 4294541776 18446744073709551615 134661081 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2041/statm: 966 510 271 78 0 252 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3864

[startup+0.700881 s]
/proc/loadavg: 1.33 1.66 1.87 2/177 2041
/proc/meminfo: memFree=19108164/32951124 swapFree=67111528/67111528
[pid=2041] ppid=2039 vsize=4128 CPUtime=0.69 cores=0,2,4,6
/proc/2041/stat : 2041 (MPhaseSAT_M) R 2039 2041 436 0 -1 4202496 621 0 0 0 69 0 0 0 25 0 1 0 442088941 4227072 561 33554432000 134512640 134829744 4294541776 18446744073709551615 134661457 0 0 4096 1026 0 0 0 17 2 0 0 0
/proc/2041/statm: 1032 561 271 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

Child status: 10
Real time (s): 0.762166
CPU time (s): 0.762883
CPU user time (s): 0.758884
CPU system time (s): 0.003999
CPU usage (%): 100.094
Max. virtual memory (cumulated for all children) (KiB): 4128

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.758884
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 661
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 0.001999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node105 at 2011-04-20 15:08:05
IDJOB=3222314
IDBENCH=83069
IDSOLVER=1637
FILE ID=node105/3222314-1303304885
RUNJOBID= node105-1303304858-1858
PBS_JOBID= 13049598
Free space on /tmp= 72288 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S87195105-042.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3222314-1303304885/watcher-3222314-1303304885 -o /tmp/evaluation-result-3222314-1303304885/solver-3222314-1303304885 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3222314-1303304885.cnf

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

MD5SUM BENCH= ada5b04e33de45b97800e1e97a28e189
RANDOM SEED=444531549

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:      19108196 kB
Buffers:        712464 kB
Cached:       12704984 kB
SwapCached:          0 kB
Active:        5386772 kB
Inactive:      8095608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19108196 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1204 kB
Writeback:           0 kB
AnonPages:       65312 kB
Mapped:          16392 kB
Slab:           299536 kB
PageTables:       4720 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   207664 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= 72288 MiB
End job on node105 at 2011-04-20 15:08:06