Trace number 311083

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, and are wall clock time (not CPU 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
CMUSAT 2007-02-08SAT 56.1785 56.1962

General information on the benchmark

Namerandom/2+p/p0.8/v1295/
unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
MD5SUM5b71a13667daed42fef777f7d5fe2376
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables1295
Number of clauses4026
Sum of the clauses size11273
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2805
Number of clauses of size 33221
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  1295                                                 |
0.00/0.00	c |  Number of clauses:    4026                                                 |
56.12/56.19	c |  Parsing time:         0.01         sec                                       |
56.12/56.19	c #varS 1295 #clauseS 3715
56.12/56.19	c REMAP internally 1
56.12/56.19	c After remapping new number of variables: 1090
56.12/56.19	c DBreduced=0 GV=102[0]  GL=3817[ 3715,102] Prune=285 decisions=183 restart=0 est=0.000170035 DB Impl=16527[0]  
56.12/56.19	c DBreduced=0 GV=152[0]  GL=3867[ 3715,152] Prune=422 decisions=270 restart=1 est=8.45542e-05 DB Impl=24487[0]  
56.12/56.19	c DBreduced=0 GV=226[0]  GL=3941[ 3715,226] Prune=619 decisions=393 restart=2 est=0.00244443 DB Impl=34748[0]  
56.12/56.19	c DBreduced=0 GV=338[0]  GL=4053[ 3715,338] Prune=898 decisions=560 restart=3 est=0.000336827 DB Impl=54580[0]  
56.12/56.19	c DBreduced=0 GV=508[0]  GL=4223[ 3715,508] Prune=1325 decisions=817 restart=4 est=0.000420918 DB Impl=83813[0]  
56.12/56.19	c DBreduced=0 GV=761[0]  GL=4476[ 3715,761] Prune=1922 decisions=1161 restart=5 est=0.000590182 DB Impl=128236[0]  
56.12/56.19	c DBreduced=0 GV=1141[0]  GL=4856[ 3715,1141] Prune=2807 decisions=1666 restart=6 est=0.000252815 DB Impl=186223[0]  
56.12/56.19	c DBreduced=0 GV=1709[0]  GL=5424[ 3715,1709] Prune=4146 decisions=2437 restart=7 est=0.00101017 DB Impl=283745[0]  
56.12/56.19	c DBreduced=3 GV=2563[0]  GL=6056[ 3715,2341] Prune=6176 decisions=3613 restart=8 est=0.000928474 DB Impl=431979[0]  
56.12/56.19	c DBreduced=4 GV=3847[0]  GL=6219[ 3715,2504] Prune=9138 decisions=5291 restart=9 est=8.4557e-05 DB Impl=654705[0]  
56.12/56.19	c DBreduced=6 GV=5768[0]  GL=5785[ 3715,2070] Prune=13498 decisions=7730 restart=10 est=0.00143116 DB Impl=969667[0]  
56.12/56.19	c DBreduced=8 GV=8650[0]  GL=6112[ 3715,2397] Prune=20116 decisions=11466 restart=11 est=0.00227261 DB Impl=1445169[0]  
56.12/56.19	c DBreduced=10 GV=12975[0]  GL=7234[ 3715,3519] Prune=29842 decisions=16867 restart=12 est=0.00244149 DB Impl=2169747[0]  
56.12/56.19	c DBreduced=13 GV=19462[0]  GL=7649[ 3715,3934] Prune=44375 decisions=24913 restart=13 est=0.000757898 DB Impl=3271435[0]  
56.12/56.19	c DBreduced=16 GV=29194[0]  GL=9545[ 3715,5830] Prune=66363 decisions=37169 restart=14 est=0.000252581 DB Impl=4907019[0]  
56.12/56.19	c DBreduced=19 GV=43790[0]  GL=13845[ 3715,10130] Prune=99037 decisions=55247 restart=15 est=0.00244451 DB Impl=7380314[0]  
56.12/56.19	c DBreduced=23 GV=65686[0]  GL=16461[ 3715,12746] Prune=148029 decisions=82343 restart=16 est=8.44009e-05 DB Impl=11066162[0]  
56.12/56.19	c DBreduced=27 GV=98529[0]  GL=21652[ 3715,17937] Prune=220725 decisions=122196 restart=17 est=8.43225e-05 DB Impl=16511913[0]  
56.12/56.19	c DBreduced=31 GV=147790[0]  GL=30409[ 3715,26694] Prune=330227 decisions=182437 restart=18 est=0.00210544 DB Impl=24596123[0]  
56.12/56.19	c After partial model completion 1090 assignments
56.12/56.19	c REMAP internally 0
56.12/56.19	c Number of variables:  1295
56.12/56.19	c Number of clauses:    4026
56.12/56.19	c #Total time (in seconds): 56.1505
56.12/56.19	c #Memory used (in MB): 13.4102
56.12/56.19	c 
56.12/56.19	s SATISFIABLE
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1292 -1293 1294 -1295 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node17/watcher-311083-1172564444 -o ROOT/results/node17/solver-311083-1172564444 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311083-1172564444/cmusat /tmp/evaluation/311083-1172564444/instance-311083-1172564444.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.07 1.00 1.00 3/77 20621
/proc/meminfo: memFree=1466336/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=2452 CPUtime=0
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 230 0 0 0 0 0 0 0 18 0 1 0 276398645 2510848 213 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 613 213 96 243 0 367 0

[startup+0.107727 s]
/proc/loadavg: 1.07 1.00 1.00 3/77 20621
/proc/meminfo: memFree=1466336/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=2808 CPUtime=0.1
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 341 0 0 0 10 0 0 0 18 0 1 0 276398645 2875392 324 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 702 324 118 243 0 456 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2808

[startup+0.517769 s]
/proc/loadavg: 1.07 1.00 1.00 3/77 20621
/proc/meminfo: memFree=1466336/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=3364 CPUtime=0.51
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 456 0 0 0 51 0 0 0 22 0 1 0 276398645 3444736 439 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589923 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 841 439 118 243 0 595 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3364

[startup+1.34185 s]
/proc/loadavg: 1.07 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1464728/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=4572 CPUtime=1.33
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 706 0 0 0 133 0 0 0 25 0 1 0 276398645 4681728 689 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134581454 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 1143 689 118 243 0 897 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4572

[startup+2.97803 s]
/proc/loadavg: 1.07 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1463832/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=4724 CPUtime=2.97
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 760 0 0 0 297 0 0 0 25 0 1 0 276398645 4837376 743 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589634 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 1181 743 118 243 0 935 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 4724

[startup+6.25437 s]
/proc/loadavg: 1.07 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1462744/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=6084 CPUtime=6.24
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 1131 0 0 0 624 0 0 0 25 0 1 0 276398645 6230016 1114 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135107898 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 1521 1114 118 243 0 1275 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 6084

[startup+12.71 s]
/proc/loadavg: 1.06 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1460184/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=8356 CPUtime=12.7
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 1701 0 0 0 1270 0 0 0 25 0 1 0 276398645 8556544 1607 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134590164 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 2089 1607 118 243 0 1843 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 8356

[startup+25.5104 s]
/proc/loadavg: 1.05 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1458464/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=9736 CPUtime=25.5
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 2308 0 0 0 2549 1 0 0 25 0 1 0 276398645 9969664 2042 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589736 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 2434 2042 118 243 0 2188 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 9736

[startup+51.1231 s]
/proc/loadavg: 1.03 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1453024/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=15792 CPUtime=51.1
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 4185 0 0 0 5108 2 0 0 25 0 1 0 276398645 16171008 3401 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589601 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 3948 3401 118 243 0 3702 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 15792

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

[startup+52.4582 s]
/proc/loadavg: 1.03 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1453024/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=15792 CPUtime=52.43
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 4185 0 0 0 5241 2 0 0 25 0 1 0 276398645 16171008 3401 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589524 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 3948 3401 118 243 0 3702 0
Current children cumulated CPU time (s) 52.43
Current children cumulated vsize (KiB) 15792

[startup+54.0944 s]
/proc/loadavg: 1.03 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1453088/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=15792 CPUtime=54.07
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 4191 0 0 0 5405 2 0 0 25 0 1 0 276398645 16171008 3407 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589524 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 3948 3407 118 243 0 3702 0
Current children cumulated CPU time (s) 54.07
Current children cumulated vsize (KiB) 15792

[startup+54.9145 s]
/proc/loadavg: 1.03 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1453088/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=15792 CPUtime=54.89
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 4193 0 0 0 5487 2 0 0 25 0 1 0 276398645 16171008 3409 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589601 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 3948 3409 118 243 0 3702 0
Current children cumulated CPU time (s) 54.89
Current children cumulated vsize (KiB) 15792

[startup+55.7345 s]
/proc/loadavg: 1.03 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1453088/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=15792 CPUtime=55.71
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 4195 0 0 0 5569 2 0 0 25 0 1 0 276398645 16171008 3411 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134590140 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 3948 3411 118 243 0 3702 0
Current children cumulated CPU time (s) 55.71
Current children cumulated vsize (KiB) 15792

[startup+56.1426 s]
/proc/loadavg: 1.03 1.00 1.00 2/78 20622
/proc/meminfo: memFree=1453088/2055920 swapFree=4192812/4192956
[pid=20621] ppid=20619 vsize=15792 CPUtime=56.12
/proc/20621/stat : 20621 (cmusat) R 20619 20621 18745 0 -1 4194304 4217 0 0 0 5610 2 0 0 25 0 1 0 276398645 16171008 3433 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589601 0 0 4096 35 0 0 0 17 1 0 0
/proc/20621/statm: 3948 3433 118 243 0 3702 0
Current children cumulated CPU time (s) 56.12
Current children cumulated vsize (KiB) 15792

Child status: 10
Real time (s): 56.1962
CPU time (s): 56.1785
CPU user time (s): 56.1515
CPU system time (s): 0.026995
CPU usage (%): 99.9684
Max. virtual memory (cumulated for all children) (KiB): 15792

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 56.1515
system time used= 0.026995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4235
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= 11
involuntary context switches= 1172

runsolver used 0.06099 second user time and 0.138978 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Feb 27 08:20:44 UTC 2007

IDJOB= 311083
IDBENCH= 20304
IDSOLVER= 121
FILE ID= node17/311083-1172564444

PBS_JOBID= 3971656

Free space on /tmp= 66557 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1295/unif2p-p0.8-v1295-c4027-S1209647106-12-SAT.cnf
COMMAND LINE= /tmp/evaluation/311083-1172564444/cmusat /tmp/evaluation/311083-1172564444/instance-311083-1172564444.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-311083-1172564444 -o ROOT/results/node17/solver-311083-1172564444 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311083-1172564444/cmusat /tmp/evaluation/311083-1172564444/instance-311083-1172564444.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  5b71a13667daed42fef777f7d5fe2376

RANDOM SEED= 435453542

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.229
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1466808 kB
Buffers:         64040 kB
Cached:         404480 kB
SwapCached:          0 kB
Active:         304844 kB
Inactive:       208276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1466808 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2668 kB
Writeback:           0 kB
Mapped:          63472 kB
Slab:            61528 kB
Committed_AS:   919440 kB
PageTables:       1748 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66557 MiB

End job on node17 on Tue Feb 27 08:21:41 UTC 2007