Trace number 3420481

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
march_rw 2011-03-02SAT 0.467928 0.467472

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 benchmark0.003999
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 

0.00/0.00	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.00	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.00	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.00	c main()::
0.00/0.00	c initFormula():: searching for DIMACS p-line....
0.00/0.00	c initFormula():: the DIMACS p-line indicates a CNF of 350 variables and 1491 clauses.
0.00/0.00	c parseCNF():: parsing....
0.00/0.00	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.00	c runParser():: parsing was successful, warming up engines...
0.00/0.00	c simplify_formula():: removed 0 tautological, 6 satisfied and 0 duplicate clauses
0.00/0.00	c preprocessing fase I completed:: there are now 349 free variables and 1485 clauses.
0.00/0.00	c using 3-SAT heuristics (occurence based diff)
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 144 duplicate clauses
0.00/0.00	c resolvent_look() :: found 68 resolvents
0.00/0.00	c main():: clause / variable ratio: ( 1553 / 350 ) = 4.44
0.00/0.00	c longest clause has size 3
0.00/0.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.00	c number of free variables = 349
0.00/0.00	c dynamic_preselect_setsize :: off
0.00/0.00	c main():: all systems go!
0.00/0.00	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/17) NodeCount: 118
0.00/0.03	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/17) NodeCount: 897
0.09/0.16	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
0.39/0.46	c |00000010100000000.000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
0.39/0.46	
c |***************************************************************
0.39/0.46	c
0.39/0.46	c main():: nodeCount: 2661
0.39/0.46	c main():: dead ends in main: 90
0.39/0.46	c main():: lookAheadCount: 187996
0.39/0.46	c main():: unitResolveCount: 29790
0.39/0.46	c main():: time=0.460000
0.39/0.46	c main():: necessary_assignments: 680
0.39/0.46	c main():: bin_sat: 0, bin_unsat 0
0.39/0.46	c main():: doublelook: #: 8430, succes #: 5575
0.39/0.46	c main():: doublelook: overall 4.606 of all possible doublelooks executed
0.39/0.46	c main():: doublelook: succesrate: 66.133, average DL_trigger: 41.179
0.39/0.46	c main():: SOLUTION VERIFIED :-)
0.39/0.46	s SATISFIABLE
0.39/0.46	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 -33 34 -35 -36 -37 -38 39 40 41 42 43 -44 -45 46 -47 48 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 -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 -145 147 -148 -149 -150 -151 -152 153 154 155 -156 157 -158 -160 161 -162 163 164 -165 -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 -198 200 201 -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 -236 -237 238 239 -240 241 -242 -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 -270 -271 273 -274 275 -276 277 278 279 -280 -281 282 -283 -284 -285 -286 -287 288 -289 -290 292 -293 294 -295 296 -297 -298 299 -300 301 302 303 -304 305 -306 307 -308 309 -310 -311 312 313 314 -315 -316 -318 -319 320 321 -322 323 324 -325 326 -327 -328 330 -331 332 333 335 -336 337 338 -339 341 342 343 344 345 346 347 348 349 0

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-3420481-1306620779/watcher-3420481-1306620779 -o /tmp/evaluation-result-3420481-1306620779/solver-3420481-1306620779 -C 5000 -W 5100 -M 15500 ./march_rw HOME/instance-3420481-1306620779.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): 5100 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: 1.86 1.99 1.99 2/498 8469
/proc/meminfo: memFree=28570328/32951132 swapFree=59085548/67111528
[pid=8469] ppid=8467 vsize=7132 CPUtime=0.01 cores=0,2,4,6
/proc/8469/stat : 8469 (march_rw) R 8467 8469 7990 0 -1 4202496 379 0 0 0 1 0 0 0 25 0 1 0 773677533 7303168 323 33554432000 4194304 4300876 140736851344192 18446744073709551615 210646807237 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8469/statm: 1783 323 168 27 0 232 0

[startup+0.0534449 s]
/proc/loadavg: 1.86 1.99 1.99 2/498 8469
/proc/meminfo: memFree=28570328/32951132 swapFree=59085548/67111528
[pid=8469] ppid=8467 vsize=7268 CPUtime=0.05 cores=0,2,4,6
/proc/8469/stat : 8469 (march_rw) R 8467 8469 7990 0 -1 4202496 391 0 0 0 5 0 0 0 25 0 1 0 773677533 7442432 335 33554432000 4194304 4300876 140736851344192 18446744073709551615 4200325 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8469/statm: 1817 335 168 27 0 266 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7268

[startup+0.100439 s]
/proc/loadavg: 1.86 1.99 1.99 2/498 8469
/proc/meminfo: memFree=28570328/32951132 swapFree=59085548/67111528
[pid=8469] ppid=8467 vsize=7268 CPUtime=0.09 cores=0,2,4,6
/proc/8469/stat : 8469 (march_rw) R 8467 8469 7990 0 -1 4202496 400 0 0 0 9 0 0 0 25 0 1 0 773677533 7442432 344 33554432000 4194304 4300876 140736851344192 18446744073709551615 4200400 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8469/statm: 1817 344 168 27 0 266 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7268

[startup+0.300418 s]
/proc/loadavg: 1.86 1.99 1.99 2/498 8469
/proc/meminfo: memFree=28570328/32951132 swapFree=59085548/67111528
[pid=8469] ppid=8467 vsize=7268 CPUtime=0.29 cores=0,2,4,6
/proc/8469/stat : 8469 (march_rw) R 8467 8469 7990 0 -1 4202496 410 0 0 0 29 0 0 0 25 0 1 0 773677533 7442432 354 33554432000 4194304 4300876 140736851344192 18446744073709551615 4214400 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8469/statm: 1817 354 168 27 0 266 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7268

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

[startup+0.400389 s]
/proc/loadavg: 1.86 1.99 1.99 2/498 8469
/proc/meminfo: memFree=28570328/32951132 swapFree=59085548/67111528
[pid=8469] ppid=8467 vsize=7268 CPUtime=0.39 cores=0,2,4,6
/proc/8469/stat : 8469 (march_rw) R 8467 8469 7990 0 -1 4202496 412 0 0 0 39 0 0 0 25 0 1 0 773677533 7442432 356 33554432000 4194304 4300876 140736851344192 18446744073709551615 4214440 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/8469/statm: 1817 356 168 27 0 266 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 7268

Child status: 10
Real time (s): 0.467472
CPU time (s): 0.467928
CPU user time (s): 0.465929
CPU system time (s): 0.001999
CPU usage (%): 100.098
Max. virtual memory (cumulated for all children) (KiB): 7268

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.465929
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 414
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= 1

runsolver used 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node129 at 2011-05-29 00:12:59
IDJOB=3420481
IDBENCH=82733
IDSOLVER=1913
FILE ID=node129/3420481-1306620779
RUNJOBID= node129-1306610774-8008
PBS_JOBID= 13471598
Free space on /tmp= 73148 MiB

SOLVER NAME= march_rw 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v350-c1491-S1946851065-023.SATISFIABLE.cnf
COMMAND LINE= ./march_rw BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3420481-1306620779/watcher-3420481-1306620779 -o /tmp/evaluation-result-3420481-1306620779/solver-3420481-1306620779 -C 5000 -W 5100 -M 15500  ./march_rw HOME/instance-3420481-1306620779.cnf

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

MD5SUM BENCH= 96b76a29d6976e3cb9111f511d66ef22
RANDOM SEED=2015331680

node129.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		: 2666.831
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	: 5333.66
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		: 2666.831
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	: 5332.83
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		: 2666.831
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		: 2666.831
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	: 5332.82
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		: 2666.831
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	: 5332.74
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		: 2666.831
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		: 2666.831
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	: 5332.75
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		: 2666.831
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:     32951132 kB
MemFree:      28570492 kB
Buffers:        192212 kB
Cached:        1625792 kB
SwapCached:      74168 kB
Active:         468652 kB
Inactive:      3688620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      28570492 kB
SwapTotal:    67111528 kB
SwapFree:     59085548 kB
Dirty:              80 kB
Writeback:           0 kB
AnonPages:     2275992 kB
Mapped:          18520 kB
Slab:            96304 kB
PageTables:      58712 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 147325568 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73148 MiB
End job on node129 at 2011-05-29 00:13:00