Trace number 316115

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 BASE 2007-02-08UNSAT 22.8095 22.816

General information on the benchmark

Namecrafted/spence/
medium/s61-100.cnf
MD5SUM8e686ecbc85309de84d77c0df9eeaa58
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.65375
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

22.79/22.81	c Number of variables:  61
22.79/22.81	c Number of clauses:    132
22.79/22.81	c DBreduced=0 GV=102[0]  GL=234[ 132,102] Prune=226 decisions=124 restart=0 est=0.0273224 DB Impl=2525[0]  
22.79/22.81	c DBreduced=0 GV=154[0]  GL=286[ 132,154] Prune=344 decisions=190 restart=1 est=0.0273444 DB Impl=3496[0]  
22.79/22.81	c DBreduced=0 GV=226[0]  GL=358[ 132,226] Prune=522 decisions=296 restart=2 est=0.0273224 DB Impl=5024[0]  
22.79/22.81	c DBreduced=0 GV=338[0]  GL=470[ 132,338] Prune=768 decisions=430 restart=3 est=0.0273224 DB Impl=7976[0]  
22.79/22.81	c DBreduced=0 GV=507[0]  GL=639[ 132,507] Prune=1129 decisions=622 restart=4 est=0.0273224 DB Impl=11425[0]  
22.79/22.81	c DBreduced=3 GV=760[0]  GL=859[ 132,727] Prune=1694 decisions=934 restart=5 est=0.0273224 DB Impl=16648[0]  
22.79/22.81	c DBreduced=4 GV=1140[0]  GL=889[ 132,757] Prune=2479 decisions=1339 restart=6 est=0.0273224 DB Impl=25236[0]  
22.79/22.81	c DBreduced=6 GV=1709[0]  GL=755[ 132,623] Prune=3669 decisions=1960 restart=7 est=0.0273224 DB Impl=37043[0]  
22.79/22.81	c DBreduced=7 GV=2563[0]  GL=1203[ 132,1071] Prune=5432 decisions=2869 restart=8 est=0.0273224 DB Impl=54825[0]  
22.79/22.81	c DBreduced=10 GV=3845[0]  GL=1051[ 132,919] Prune=8154 decisions=4309 restart=9 est=0.0273224 DB Impl=81138[0]  
22.79/22.81	c DBreduced=12 GV=5767[0]  GL=1776[ 132,1644] Prune=12233 decisions=6466 restart=10 est=0.0273225 DB Impl=120088[0]  
22.79/22.81	c DBreduced=15 GV=8650[0]  GL=2327[ 132,2195] Prune=18141 decisions=9491 restart=11 est=0.0273225 DB Impl=182381[0]  
22.79/22.81	c DBreduced=19 GV=12975[0]  GL=2445[ 132,2313] Prune=27256 decisions=14281 restart=12 est=0.0273224 DB Impl=266810[0]  
22.79/22.81	c DBreduced=22 GV=19462[0]  GL=4563[ 132,4431] Prune=40925 decisions=21463 restart=13 est=0.0273297 DB Impl=396162[0]  
22.79/22.81	c DBreduced=26 GV=29195[0]  GL=6098[ 132,5966] Prune=61163 decisions=31968 restart=14 est=0.0273231 DB Impl=592588[0]  
22.79/22.81	c DBreduced=30 GV=43790[0]  GL=8735[ 132,8603] Prune=91845 decisions=48055 restart=15 est=0.0273298 DB Impl=882248[0]  
22.79/22.81	c DBreduced=34 GV=65685[0]  GL=13168[ 132,13036] Prune=136984 decisions=71299 restart=16 est=0.0277774 DB Impl=1333941[0]  
22.79/22.81	c DBreduced=39 GV=98528[0]  GL=12670[ 132,12538] Prune=205718 decisions=107190 restart=17 est=0.0541973 DB Impl=1995748[0]  
22.79/22.81	c DBreduced=43 GV=147790[0]  GL=21476[ 132,21344] Prune=309019 decisions=161229 restart=18 est=0.135305 DB Impl=2977935[0]  
22.79/22.81	c #Total time (in seconds): 22.7915
22.79/22.81	c #Memory used (in MB): 9.99609
22.79/22.81	c 
22.79/22.81	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node22/watcher-316115-1172664258 -o ROOT/results/node22/solver-316115-1172664258 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316115-1172664258/cmusat_base /tmp/evaluation/316115-1172664258/instance-316115-1172664258.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 0.94 0.98 0.97 3/77 17424
/proc/meminfo: memFree=1338952/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=2176 CPUtime=0
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 155 0 0 0 0 0 0 0 18 0 1 0 286379693 2228224 137 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134551526 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 544 137 110 241 0 300 0

[startup+0.0222029 s]
/proc/loadavg: 0.94 0.98 0.97 3/77 17424
/proc/meminfo: memFree=1338952/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=2312 CPUtime=0.02
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 174 0 0 0 2 0 0 0 18 0 1 0 286379693 2367488 156 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560480 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 578 156 110 241 0 334 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2312

[startup+0.101209 s]
/proc/loadavg: 0.94 0.98 0.97 3/77 17424
/proc/meminfo: memFree=1338952/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=2456 CPUtime=0.09
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 209 0 0 0 9 0 0 0 18 0 1 0 286379693 2514944 191 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559860 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 614 191 110 241 0 370 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2456

[startup+0.301223 s]
/proc/loadavg: 0.94 0.98 0.97 3/77 17424
/proc/meminfo: memFree=1338952/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=2756 CPUtime=0.29
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 281 0 0 0 29 0 0 0 19 0 1 0 286379693 2822144 263 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 135063203 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 689 263 110 241 0 445 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2756

[startup+0.701253 s]
/proc/loadavg: 0.94 0.98 0.97 3/77 17424
/proc/meminfo: memFree=1338952/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=3352 CPUtime=0.69
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 403 0 0 0 69 0 0 0 23 0 1 0 286379693 3432448 385 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559932 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 838 385 110 241 0 594 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3352

[startup+1.50131 s]
/proc/loadavg: 0.94 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1337728/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=3508 CPUtime=1.49
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 464 0 0 0 149 0 0 0 25 0 1 0 286379693 3592192 446 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559932 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 877 446 110 241 0 633 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3508

[startup+3.10143 s]
/proc/loadavg: 0.94 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1336576/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=4560 CPUtime=3.09
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 682 0 0 0 309 0 0 0 25 0 1 0 286379693 4669440 664 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559881 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 1140 664 110 241 0 896 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4560

[startup+6.30166 s]
/proc/loadavg: 0.95 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1335808/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=6408 CPUtime=6.29
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 1205 0 0 0 629 0 0 0 25 0 1 0 286379693 6561792 1069 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559860 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 1602 1069 110 241 0 1358 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6408

[startup+12.7011 s]
/proc/loadavg: 0.95 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1334272/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=6916 CPUtime=12.69
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 1482 0 0 0 1269 0 0 0 25 0 1 0 286379693 7081984 1226 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559878 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 1729 1226 110 241 0 1485 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6916

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

[startup+19.1016 s]
/proc/loadavg: 0.96 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1333120/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=10208 CPUtime=19.09
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 2609 0 0 0 1908 1 0 0 25 0 1 0 286379693 10452992 1858 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559940 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 2552 1858 111 241 0 2308 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 10208

[startup+20.7017 s]
/proc/loadavg: 0.96 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1331584/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=10208 CPUtime=20.69
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 2609 0 0 0 2068 1 0 0 25 0 1 0 286379693 10452992 1858 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 135063277 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 2552 1858 111 241 0 2308 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 10208

[startup+21.5018 s]
/proc/loadavg: 0.96 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1331584/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=10208 CPUtime=21.49
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 2624 0 0 0 2148 1 0 0 25 0 1 0 286379693 10452992 1873 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134559905 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 2552 1873 111 241 0 2308 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 10208

[startup+22.3028 s]
/proc/loadavg: 0.96 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1331456/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=10236 CPUtime=22.29
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 2714 0 0 0 2228 1 0 0 25 0 1 0 286379693 10481664 1892 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560509 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 2559 1892 111 241 0 2315 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 10236

[startup+22.7029 s]
/proc/loadavg: 0.96 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1331456/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=10236 CPUtime=22.69
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 2714 0 0 0 2268 1 0 0 25 0 1 0 286379693 10481664 1892 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560137 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 2559 1892 111 241 0 2315 0
Current children cumulated CPU time (s) 22.69
Current children cumulated vsize (KiB) 10236

[startup+22.8019 s]
/proc/loadavg: 0.96 0.98 0.97 2/78 17425
/proc/meminfo: memFree=1331456/2055920 swapFree=4144436/4192956
[pid=17424] ppid=17422 vsize=10236 CPUtime=22.79
/proc/17424/stat : 17424 (cmusat_base) R 17422 17424 17054 0 -1 4194304 2714 0 0 0 2278 1 0 0 25 0 1 0 286379693 10481664 1892 18446744073709551615 134512640 135500113 4294956624 18446744073709551615 134560149 0 0 4096 35 0 0 0 17 1 0 0
/proc/17424/statm: 2559 1892 111 241 0 2315 0
Current children cumulated CPU time (s) 22.79
Current children cumulated vsize (KiB) 10236

Child status: 20
Real time (s): 22.816
CPU time (s): 22.8095
CPU user time (s): 22.7925
CPU system time (s): 0.016997
CPU usage (%): 99.9715
Max. virtual memory (cumulated for all children) (KiB): 10236

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.7925
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2722
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= 8
involuntary context switches= 20

runsolver used 0.031995 second user time and 0.054991 second system time

The end

Launcher Data (download as text)

Begin job on node22 on Wed Feb 28 12:04:18 UTC 2007

IDJOB= 316115
IDBENCH= 20433
IDSOLVER= 120
FILE ID= node22/316115-1172664258

PBS_JOBID= 3981231

Free space on /tmp= 66504 MiB

SOLVER NAME= CMUSAT BASE 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s61-100.cnf
COMMAND LINE= /tmp/evaluation/316115-1172664258/cmusat_base /tmp/evaluation/316115-1172664258/instance-316115-1172664258.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-316115-1172664258 -o ROOT/results/node22/solver-316115-1172664258 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316115-1172664258/cmusat_base /tmp/evaluation/316115-1172664258/instance-316115-1172664258.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  8e686ecbc85309de84d77c0df9eeaa58

RANDOM SEED= 322684141

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node22.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		: 3000.235
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		: 3000.235
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:       1339296 kB
Buffers:         31080 kB
Cached:         617864 kB
SwapCached:      14260 kB
Active:         181620 kB
Inactive:       490076 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1339296 kB
SwapTotal:     4192956 kB
SwapFree:      4144436 kB
Dirty:            2488 kB
Writeback:           0 kB
Mapped:          29596 kB
Slab:            30532 kB
Committed_AS:   786392 kB
PageTables:       1692 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= 66504 MiB

End job on node22 on Wed Feb 28 12:04:41 UTC 2007