Trace number 312231

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 7.32488 7.32825

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
MD5SUMa72030f9b5b8bc8b27629e6299239dd6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.27281
Satisfiable
(Un)Satisfiability was proved
Number of variables1665
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
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:  1665                                                 |
0.00/0.00	c |  Number of clauses:    5177                                                 |
7.27/7.32	c |  Parsing time:         0.01         sec                                       |
7.27/7.32	c #varS 1665 #clauseS 4768
7.27/7.32	c REMAP internally 1
7.27/7.32	c After remapping new number of variables: 1402
7.27/7.32	c DBreduced=0 GV=101[0]  GL=4868[ 4768,100] Prune=284 decisions=183 restart=0 est=1.07087 DB Impl=19711[0]  
7.27/7.32	c DBreduced=0 GV=151[0]  GL=4918[ 4768,150] Prune=405 decisions=254 restart=1 est=1.07036 DB Impl=29774[0]  
7.27/7.32	c DBreduced=0 GV=226[0]  GL=4993[ 4768,225] Prune=585 decisions=359 restart=2 est=1.0701 DB Impl=44354[0]  
7.27/7.32	c DBreduced=0 GV=338[0]  GL=5105[ 4768,337] Prune=862 decisions=524 restart=3 est=1.07021 DB Impl=70161[0]  
7.27/7.32	c DBreduced=0 GV=507[0]  GL=5274[ 4768,506] Prune=1273 decisions=766 restart=4 est=1.07031 DB Impl=102579[0]  
7.27/7.32	c DBreduced=0 GV=761[0]  GL=5528[ 4768,760] Prune=1859 decisions=1098 restart=5 est=1.07127 DB Impl=151499[0]  
7.27/7.32	c DBreduced=0 GV=1141[0]  GL=5908[ 4768,1140] Prune=2735 decisions=1594 restart=6 est=1.0701 DB Impl=226966[0]  
7.27/7.32	c DBreduced=0 GV=1709[0]  GL=6476[ 4768,1708] Prune=4085 decisions=2376 restart=7 est=1.06995 DB Impl=340699[0]  
7.27/7.32	c DBreduced=2 GV=2564[0]  GL=7132[ 4768,2364] Prune=5963 decisions=3399 restart=8 est=1.07 DB Impl=505759[0]  
7.27/7.32	c DBreduced=3 GV=3845[0]  GL=7184[ 4768,2416] Prune=8909 decisions=5064 restart=9 est=1.07021 DB Impl=761954[0]  
7.27/7.32	c DBreduced=4 GV=5767[0]  GL=7877[ 4768,3109] Prune=13296 decisions=7529 restart=10 est=1.14163 DB Impl=1148020[0]  
7.27/7.32	c DBreduced=6 GV=8650[0]  GL=8206[ 4768,3438] Prune=19826 decisions=11176 restart=11 est=1.14179 DB Impl=1723093[0]  
7.27/7.32	c DBreduced=9 GV=12976[0]  GL=7687[ 4768,2919] Prune=29582 decisions=16606 restart=12 est=1.14174 DB Impl=2594964[0]  
7.27/7.32	c DBreduced=11 GV=19462[0]  GL=10194[ 4768,5426] Prune=44174 decisions=24712 restart=13 est=1.14204 DB Impl=3891969[0]  
7.27/7.32	c DBreduced=14 GV=29194[0]  GL=12487[ 4768,7719] Prune=65991 decisions=36797 restart=14 est=1.28465 DB Impl=5833630[0]  
7.27/7.32	c #Total time (in seconds): 7.31689
7.27/7.32	c #Memory used (in MB): 5.38672
7.27/7.32	c 
7.27/7.32	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node11/watcher-312231-1172584014 -o ROOT/results/node11/solver-312231-1172584014 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/312231-1172584014/cmusat /tmp/evaluation/312231-1172584014/instance-312231-1172584014.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: 1.00 1.00 1.00 3/77 17501
/proc/meminfo: memFree=1565880/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=2604 CPUtime=0
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 247 0 0 0 0 0 0 0 18 0 1 0 278355921 2666496 230 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135095640 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 651 230 96 243 0 405 0

[startup+0.107971 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 17501
/proc/meminfo: memFree=1565880/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=2972 CPUtime=0.1
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 365 0 0 0 10 0 0 0 18 0 1 0 278355921 3043328 348 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 743 348 118 243 0 497 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2972

[startup+0.517019 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 17501
/proc/meminfo: memFree=1565880/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=3420 CPUtime=0.51
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 491 0 0 0 51 0 0 0 22 0 1 0 278355921 3502080 474 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134592195 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 855 474 118 243 0 609 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3420

[startup+1.34212 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17502
/proc/meminfo: memFree=1564208/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=3720 CPUtime=1.33
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 580 0 0 0 133 0 0 0 25 0 1 0 278355921 3809280 563 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589690 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 930 563 118 243 0 684 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3720

[startup+2.97831 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17502
/proc/meminfo: memFree=1562992/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=4964 CPUtime=2.97
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 834 0 0 0 297 0 0 0 25 0 1 0 278355921 5083136 817 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134580956 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 1241 817 118 243 0 995 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 4964

[startup+6.2547 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17502
/proc/meminfo: memFree=1562544/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=5304 CPUtime=6.24
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 941 0 0 0 624 0 0 0 25 0 1 0 278355921 5431296 918 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 1326 918 118 243 0 1080 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 5304

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

[startup+6.56173 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17502
/proc/meminfo: memFree=1562544/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=5516 CPUtime=6.55
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 981 0 0 0 655 0 0 0 25 0 1 0 278355921 5648384 958 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589545 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 1379 958 118 243 0 1133 0
Current children cumulated CPU time (s) 6.55
Current children cumulated vsize (KiB) 5516

[startup+6.97378 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17502
/proc/meminfo: memFree=1562288/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=5516 CPUtime=6.96
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 981 0 0 0 696 0 0 0 25 0 1 0 278355921 5648384 958 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134580942 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 1379 958 118 243 0 1133 0
Current children cumulated CPU time (s) 6.96
Current children cumulated vsize (KiB) 5516

[startup+7.17781 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17502
/proc/meminfo: memFree=1562288/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=5516 CPUtime=7.16
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 983 0 0 0 716 0 0 0 25 0 1 0 278355921 5648384 960 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589601 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 1379 960 118 243 0 1133 0
Current children cumulated CPU time (s) 7.16
Current children cumulated vsize (KiB) 5516

[startup+7.27982 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 17502
/proc/meminfo: memFree=1562288/2055920 swapFree=4192812/4192956
[pid=17501] ppid=17499 vsize=5516 CPUtime=7.27
/proc/17501/stat : 17501 (cmusat) R 17499 17501 17295 0 -1 4194304 987 0 0 0 727 0 0 0 25 0 1 0 278355921 5648384 964 18446744073709551615 134512640 135508737 4294956704 18446744073709551615 134589563 0 0 4096 35 0 0 0 17 1 0 0
/proc/17501/statm: 1379 964 118 243 0 1133 0
Current children cumulated CPU time (s) 7.27
Current children cumulated vsize (KiB) 5516

Child status: 20
Real time (s): 7.32825
CPU time (s): 7.32488
CPU user time (s): 7.31789
CPU system time (s): 0.006998
CPU usage (%): 99.9541
Max. virtual memory (cumulated for all children) (KiB): 5516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.31789
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1029
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= 157

runsolver used 0.012998 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node11 on Tue Feb 27 13:46:54 UTC 2007

IDJOB= 312231
IDBENCH= 20335
IDSOLVER= 121
FILE ID= node11/312231-1172584014

PBS_JOBID= 3971699

Free space on /tmp= 66557 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1104990816-03-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/312231-1172584014/cmusat /tmp/evaluation/312231-1172584014/instance-312231-1172584014.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-312231-1172584014 -o ROOT/results/node11/solver-312231-1172584014 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/312231-1172584014/cmusat /tmp/evaluation/312231-1172584014/instance-312231-1172584014.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  a72030f9b5b8bc8b27629e6299239dd6

RANDOM SEED= 515456279

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node11.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		: 3000.243
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		: 3000.243
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:       1566288 kB
Buffers:         53444 kB
Cached:         322460 kB
SwapCached:          0 kB
Active:         252176 kB
Inactive:       167052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1566288 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2720 kB
Writeback:           0 kB
Mapped:          62204 kB
Slab:            55948 kB
Committed_AS:   825588 kB
PageTables:       1756 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 node11 on Tue Feb 27 13:47:01 UTC 2007