Trace number 3169715

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
sattime+ 2011-03-02SAT 0.053991 0.058154

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v350-c1491-S1946851065-023.SATISFIABLE.cnf
MD5SUM96b76a29d6976e3cb9111f511d66ef22
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.001999
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 

0.03/0.05	c 0 clauses are redundant and removed
0.03/0.05	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.03/0.05	c 0 vars are fixed and 0 clauses are removed after lookahead
0.03/0.05	c initial seed is 423415014
0.03/0.05	c try=1 flip j=128203 walk=111338 seed 423415031
0.03/0.05	c A solution is found
0.03/0.05	s SATISFIABLE
0.03/0.05	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 
0.03/0.05	v 0 
0.03/0.05	c Done (mycputime is 0 seconds)

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-3169715-1301694330/watcher-3169715-1301694330 -o /tmp/evaluation-result-3169715-1301694330/solver-3169715-1301694330 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169715-1301694330.cnf 423414901 

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: 4.00 4.00 3.91 5/189 5917
/proc/meminfo: memFree=21867872/32950928 swapFree=67111528/67111528
[pid=5917] ppid=5915 vsize=880892 CPUtime=0 cores=5,7
/proc/5917/stat : 5917 (sattime+) R 5915 5917 5379 0 -1 4202496 247 0 0 0 0 0 0 0 25 0 1 0 281031802 902033408 189 33554432000 4194304 4228340 140737030222448 18446744073709551615 4206597 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5917/statm: 220223 189 104 9 0 217380 0

[startup+0.0349629 s]
/proc/loadavg: 4.00 4.00 3.91 5/189 5917
/proc/meminfo: memFree=21867872/32950928 swapFree=67111528/67111528
[pid=5917] ppid=5915 vsize=880896 CPUtime=0.03 cores=5,7
/proc/5917/stat : 5917 (sattime+) R 5915 5917 5379 0 -1 4202496 301 0 0 0 3 0 0 0 25 0 1 0 281031802 902037504 242 33554432000 4194304 4228340 140737030222448 18446744073709551615 4217922 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5917/statm: 220224 242 116 9 0 217381 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 880896

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

[startup+0.0349629 s]
/proc/loadavg: 4.00 4.00 3.91 5/189 5917
/proc/meminfo: memFree=21867872/32950928 swapFree=67111528/67111528
[pid=5917] ppid=5915 vsize=880896 CPUtime=0.03 cores=5,7
/proc/5917/stat : 5917 (sattime+) R 5915 5917 5379 0 -1 4202496 301 0 0 0 3 0 0 0 25 0 1 0 281031802 902037504 242 33554432000 4194304 4228340 140737030222448 18446744073709551615 4217922 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/5917/statm: 220224 242 116 9 0 217381 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 880896

Child status: 10
Real time (s): 0.058154
CPU time (s): 0.053991
CPU user time (s): 0.053991
CPU system time (s): 0
CPU usage (%): 92.8414
Max. virtual memory (cumulated for all children) (KiB): 880896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.053991
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 305
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= 2
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-04-01 23:45:30
IDJOB=3169715
IDBENCH=82733
IDSOLVER=1579
FILE ID=node120/3169715-1301694330
RUNJOBID= node120-1301690422-5400
PBS_JOBID= 12840716
Free space on /tmp= 71268 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1946851065-023.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169715-1301694330/watcher-3169715-1301694330 -o /tmp/evaluation-result-3169715-1301694330/solver-3169715-1301694330 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169715-1301694330.cnf 423414901

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

MD5SUM BENCH= 96b76a29d6976e3cb9111f511d66ef22
RANDOM SEED=423414901

node120.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		: 2666.809
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		: 2666.809
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	: 5226.07
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.78
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:      21868028 kB
Buffers:        345176 kB
Cached:       10391804 kB
SwapCached:          0 kB
Active:        7522096 kB
Inactive:      3283188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21868028 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23468 kB
Writeback:           0 kB
AnonPages:       67760 kB
Mapped:          15484 kB
Slab:           214404 kB
PageTables:       5392 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  2883972 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= 71260 MiB
End job on node120 at 2011-04-01 23:45:31