Trace number 316116

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 2007-02-08UNSAT 22.7385 22.7413

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)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  61                                                   |
0.00/0.00	c |  Number of clauses:    132                                                  |
22.68/22.73	c |  Parsing time:         0.00         sec                                       |
22.68/22.73	c #varS 61 #clauseS 132
22.68/22.73	c REMAP internally 1
22.68/22.73	c After remapping new number of variables: 61
22.68/22.73	c DBreduced=0 GV=102[0]  GL=234[ 132,102] Prune=226 decisions=124 restart=0 est=0.0273224 DB Impl=2525[0]  
22.68/22.73	c DBreduced=0 GV=154[0]  GL=286[ 132,154] Prune=344 decisions=190 restart=1 est=0.0273444 DB Impl=3496[0]  
22.68/22.73	c DBreduced=0 GV=226[0]  GL=358[ 132,226] Prune=522 decisions=296 restart=2 est=0.0273224 DB Impl=5024[0]  
22.68/22.73	c DBreduced=0 GV=338[0]  GL=470[ 132,338] Prune=768 decisions=430 restart=3 est=0.0273224 DB Impl=7976[0]  
22.68/22.73	c DBreduced=0 GV=507[0]  GL=639[ 132,507] Prune=1129 decisions=622 restart=4 est=0.0273224 DB Impl=11425[0]  
22.68/22.73	c DBreduced=3 GV=760[0]  GL=859[ 132,727] Prune=1694 decisions=934 restart=5 est=0.0273224 DB Impl=16648[0]  
22.68/22.73	c DBreduced=4 GV=1140[0]  GL=889[ 132,757] Prune=2479 decisions=1339 restart=6 est=0.0273224 DB Impl=25236[0]  
22.68/22.73	c DBreduced=6 GV=1709[0]  GL=755[ 132,623] Prune=3669 decisions=1960 restart=7 est=0.0273224 DB Impl=37043[0]  
22.68/22.73	c DBreduced=7 GV=2563[0]  GL=1203[ 132,1071] Prune=5432 decisions=2869 restart=8 est=0.0273224 DB Impl=54825[0]  
22.68/22.73	c DBreduced=10 GV=3845[0]  GL=1051[ 132,919] Prune=8154 decisions=4309 restart=9 est=0.0273224 DB Impl=81138[0]  
22.68/22.73	c DBreduced=12 GV=5767[0]  GL=1776[ 132,1644] Prune=12233 decisions=6466 restart=10 est=0.0273225 DB Impl=120088[0]  
22.68/22.73	c DBreduced=15 GV=8650[0]  GL=2327[ 132,2195] Prune=18141 decisions=9491 restart=11 est=0.0273225 DB Impl=182381[0]  
22.68/22.73	c DBreduced=19 GV=12975[0]  GL=2445[ 132,2313] Prune=27256 decisions=14281 restart=12 est=0.0273224 DB Impl=266810[0]  
22.68/22.73	c DBreduced=22 GV=19462[0]  GL=4563[ 132,4431] Prune=40925 decisions=21463 restart=13 est=0.0273297 DB Impl=396162[0]  
22.68/22.73	c DBreduced=26 GV=29195[0]  GL=6098[ 132,5966] Prune=61163 decisions=31968 restart=14 est=0.0273231 DB Impl=592588[0]  
22.68/22.73	c DBreduced=30 GV=43790[0]  GL=8735[ 132,8603] Prune=91845 decisions=48055 restart=15 est=0.0273298 DB Impl=882248[0]  
22.68/22.73	c DBreduced=34 GV=65685[0]  GL=13168[ 132,13036] Prune=136984 decisions=71299 restart=16 est=0.0277774 DB Impl=1333941[0]  
22.68/22.73	c DBreduced=39 GV=98528[0]  GL=12670[ 132,12538] Prune=205718 decisions=107190 restart=17 est=0.0541973 DB Impl=1995748[0]  
22.68/22.73	c DBreduced=43 GV=147790[0]  GL=21476[ 132,21344] Prune=309019 decisions=161229 restart=18 est=0.135305 DB Impl=2977935[0]  
22.68/22.73	c #Total time (in seconds): 22.7175
22.68/22.73	c #Memory used (in MB): 9.97656
22.68/22.73	c 
22.68/22.73	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/node16/watcher-316116-1172664263 -o ROOT/results/node16/solver-316116-1172664263 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316116-1172664263/cmusat /tmp/evaluation/316116-1172664263/instance-316116-1172664263.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: 0.65 0.89 0.96 3/77 1028
/proc/meminfo: memFree=1262784/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=2180 CPUtime=0
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 160 0 0 0 0 0 0 0 18 0 1 0 286380610 2232320 143 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134590170 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 545 143 117 243 0 299 0

[startup+0.0227419 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 1028
/proc/meminfo: memFree=1262784/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=2180 CPUtime=0.02
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 178 0 0 0 2 0 0 0 18 0 1 0 286380610 2232320 161 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134581323 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 545 161 117 243 0 299 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2180

[startup+0.101732 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 1028
/proc/meminfo: memFree=1262784/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=2448 CPUtime=0.09
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 215 0 0 0 9 0 0 0 18 0 1 0 286380610 2506752 198 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134579780 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 612 198 117 243 0 366 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2448

[startup+0.301709 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 1028
/proc/meminfo: memFree=1262784/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=2768 CPUtime=0.29
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 283 0 0 0 29 0 0 0 19 0 1 0 286380610 2834432 266 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589688 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 692 266 117 243 0 446 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2768

[startup+0.701663 s]
/proc/loadavg: 0.65 0.89 0.96 3/77 1028
/proc/meminfo: memFree=1262784/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=3328 CPUtime=0.69
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 407 0 0 0 69 0 0 0 23 0 1 0 286380610 3407872 390 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589593 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 832 390 117 243 0 586 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3328

[startup+1.50157 s]
/proc/loadavg: 0.65 0.89 0.96 2/78 1029
/proc/meminfo: memFree=1261688/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=3484 CPUtime=1.49
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 468 0 0 0 149 0 0 0 25 0 1 0 286380610 3567616 451 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589578 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 871 451 117 243 0 625 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3484

[startup+3.10138 s]
/proc/loadavg: 0.65 0.89 0.96 2/78 1029
/proc/meminfo: memFree=1260536/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=4408 CPUtime=3.09
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 687 0 0 0 309 0 0 0 25 0 1 0 286380610 4513792 670 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589650 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 1102 670 117 243 0 856 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 4408

[startup+6.30107 s]
/proc/loadavg: 0.68 0.90 0.96 2/78 1029
/proc/meminfo: memFree=1259848/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=6384 CPUtime=6.29
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 1209 0 0 0 628 1 0 0 25 0 1 0 286380610 6537216 1074 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589667 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 1596 1074 117 243 0 1350 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6384

[startup+12.7013 s]
/proc/loadavg: 0.71 0.90 0.96 2/78 1029
/proc/meminfo: memFree=1258192/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=6960 CPUtime=12.69
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 1596 0 0 0 1268 1 0 0 25 0 1 0 286380610 7127040 1255 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589545 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 1740 1255 117 243 0 1494 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6960

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

[startup+19.1015 s]
/proc/loadavg: 0.73 0.90 0.96 2/78 1029
/proc/meminfo: memFree=1255504/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=10188 CPUtime=19.09
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 2650 0 0 0 1908 1 0 0 25 0 1 0 286380610 10432512 1863 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589536 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 2547 1863 118 243 0 2301 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 10188

[startup+20.7013 s]
/proc/loadavg: 0.73 0.90 0.96 2/78 1029
/proc/meminfo: memFree=1255568/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=10188 CPUtime=20.69
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 2650 0 0 0 2068 1 0 0 25 0 1 0 286380610 10432512 1863 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589612 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 2547 1863 118 243 0 2301 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 10188

[startup+21.5012 s]
/proc/loadavg: 0.83 0.92 0.97 2/78 1029
/proc/meminfo: memFree=1255632/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=10188 CPUtime=21.49
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 2668 0 0 0 2148 1 0 0 25 0 1 0 286380610 10432512 1881 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589593 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 2547 1881 118 243 0 2301 0
Current children cumulated CPU time (s) 21.49
Current children cumulated vsize (KiB) 10188

[startup+22.3011 s]
/proc/loadavg: 0.83 0.92 0.97 2/78 1029
/proc/meminfo: memFree=1255504/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=10216 CPUtime=22.28
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 2755 0 0 0 2227 1 0 0 25 0 1 0 286380610 10461184 1897 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589563 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 2554 1897 118 243 0 2308 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 10216

[startup+22.7011 s]
/proc/loadavg: 0.83 0.92 0.97 2/78 1029
/proc/meminfo: memFree=1255504/2055920 swapFree=4192812/4192956
[pid=1028] ppid=1026 vsize=10216 CPUtime=22.68
/proc/1028/stat : 1028 (cmusat) R 1026 1028 794 0 -1 4194304 2755 0 0 0 2267 1 0 0 25 0 1 0 286380610 10461184 1897 18446744073709551615 134512640 135508737 4294956624 18446744073709551615 134589650 0 0 4096 35 0 0 0 17 1 0 0
/proc/1028/statm: 2554 1897 118 243 0 2308 0
Current children cumulated CPU time (s) 22.68
Current children cumulated vsize (KiB) 10216

Child status: 20
Real time (s): 22.7413
CPU time (s): 22.7385
CPU user time (s): 22.7175
CPU system time (s): 0.020996
CPU usage (%): 99.9877
Max. virtual memory (cumulated for all children) (KiB): 10216

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.7175
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2767
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= 476

runsolver used 0.030995 second user time and 0.053991 second system time

The end

Launcher Data (download as text)

Begin job on node16 on Wed Feb 28 12:04:23 UTC 2007

IDJOB= 316116
IDBENCH= 20433
IDSOLVER= 121
FILE ID= node16/316116-1172664263

PBS_JOBID= 3980962

Free space on /tmp= 66483 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s61-100.cnf
COMMAND LINE= /tmp/evaluation/316116-1172664263/cmusat /tmp/evaluation/316116-1172664263/instance-316116-1172664263.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-316116-1172664263 -o ROOT/results/node16/solver-316116-1172664263 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316116-1172664263/cmusat /tmp/evaluation/316116-1172664263/instance-316116-1172664263.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  8e686ecbc85309de84d77c0df9eeaa58

RANDOM SEED= 692030797

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node16.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		: 3000.281
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		: 3000.281
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:       1263256 kB
Buffers:         52104 kB
Cached:         621912 kB
SwapCached:          0 kB
Active:         239744 kB
Inactive:       487704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1263256 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2756 kB
Writeback:           0 kB
Mapped:          72340 kB
Slab:            50868 kB
Committed_AS:  1157244 kB
PageTables:       1720 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= 66483 MiB

End job on node16 on Wed Feb 28 12:04:46 UTC 2007