Trace number 369993

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
TTS 4.0UNSAT 16.0036 16.0095

General information on the benchmark

Namecrafted/spence/
medium/s77-100.cnf
MD5SUM124e32713f66a3b30ead344822177706
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.0036
Satisfiable
(Un)Satisfiability was proved
Number of variables77
Number of clauses164
Sum of the clauses size492
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3164
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

15.98/16.00	c Command: /tmp/evaluation/369993-1177550562/tts-4-0 /tmp/evaluation/369993-1177550562/instance-369993-1177550562.cnf 
15.98/16.00	c CPU limit set to 5000.000000
15.98/16.00	c Variables = 77
15.98/16.00	c Clauses = 164
15.98/16.00	c Literals = 492
15.98/16.00	c Reduced size:
15.98/16.00	c Variables = 77
15.98/16.00	c Clauses = 164
15.98/16.00	c Literals = 492
15.98/16.00	c Independent sub-problems = 1
15.98/16.00	c Sub-problem with 77 variables
15.98/16.00	c using permutation method 3
15.98/16.00	c Ordering finished 0.220 seconds
15.98/16.00	c mapped 0.220 seconds
15.98/16.00	c permuted 0.220 seconds
15.98/16.00	c init finished 0.220 seconds
15.98/16.00	c tree built 0.220 seconds
15.98/16.00	c Partial assignments = 605944, improvements = 89962
15.98/16.00	s UNSATISFIABLE
15.98/16.00	c Time = 16.00 seconds

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node54/watcher-369993-1177550562 -o ROOT/results/node54/solver-369993-1177550562 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/369993-1177550562/tts-4-0 /tmp/evaluation/369993-1177550562/instance-369993-1177550562.cnf 

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): 7500 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: 0.91 0.97 0.95 3/66 22137
/proc/meminfo: memFree=1587904/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=796 CPUtime=0
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 99 0 0 0 0 0 0 0 18 0 1 0 202430672 815104 85 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134623254 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 199 85 62 113 0 83 0

[startup+0.027091 s]
/proc/loadavg: 0.91 0.97 0.95 3/66 22137
/proc/meminfo: memFree=1587904/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=796 CPUtime=0.02
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 99 0 0 0 2 0 0 0 18 0 1 0 202430672 815104 85 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134537041 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 199 85 62 113 0 83 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 796

[startup+0.1011 s]
/proc/loadavg: 0.91 0.97 0.95 3/66 22137
/proc/meminfo: memFree=1587904/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=796 CPUtime=0.09
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 99 0 0 0 9 0 0 0 18 0 1 0 202430672 815104 85 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134538122 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 199 85 62 113 0 83 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 796

[startup+0.301125 s]
/proc/loadavg: 0.91 0.97 0.95 3/66 22137
/proc/meminfo: memFree=1587904/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=1076 CPUtime=0.29
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 177 0 0 0 29 0 0 0 19 0 1 0 202430672 1101824 163 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134535181 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 269 163 67 113 0 153 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1076

[startup+0.701175 s]
/proc/loadavg: 0.91 0.97 0.95 3/66 22137
/proc/meminfo: memFree=1587904/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=1544 CPUtime=0.69
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 323 0 0 0 69 0 0 0 22 0 1 0 202430672 1581056 309 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 386 309 67 113 0 270 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1544

[startup+1.50128 s]
/proc/loadavg: 0.91 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1586552/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=2252 CPUtime=1.49
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 478 0 0 0 149 0 0 0 25 0 1 0 202430672 2306048 464 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 563 464 67 113 0 447 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2252

[startup+3.10248 s]
/proc/loadavg: 0.91 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1585720/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=3188 CPUtime=3.09
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 750 0 0 0 309 0 0 0 25 0 1 0 202430672 3264512 736 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 797 736 67 113 0 681 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3188

[startup+6.30189 s]
/proc/loadavg: 0.92 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1583800/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=4828 CPUtime=6.29
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 1131 0 0 0 629 0 0 0 25 0 1 0 202430672 4943872 1117 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534095 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 1207 1117 67 113 0 1091 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4828

[startup+12.7017 s]
/proc/loadavg: 0.93 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1581496/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=6940 CPUtime=12.68
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 1665 0 0 0 1268 0 0 0 25 0 1 0 202430672 7106560 1651 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 1735 1651 67 113 0 1619 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 6940

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

[startup+14.3059 s]
/proc/loadavg: 0.93 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1580664/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=7640 CPUtime=14.29
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 1825 0 0 0 1429 0 0 0 25 0 1 0 202430672 7823360 1811 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534199 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 1910 1811 67 113 0 1794 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 7640

[startup+15.102 s]
/proc/loadavg: 0.93 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1580664/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=7640 CPUtime=15.08
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 1864 0 0 0 1508 0 0 0 25 0 1 0 202430672 7823360 1850 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134537396 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 1910 1850 67 113 0 1794 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 7640

[startup+15.5011 s]
/proc/loadavg: 0.93 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1580472/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=7876 CPUtime=15.48
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 1887 0 0 0 1548 0 0 0 25 0 1 0 202430672 8065024 1873 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534120 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 1969 1873 67 113 0 1853 0
Current children cumulated CPU time (s) 15.48
Current children cumulated vsize (KiB) 7876

[startup+15.9011 s]
/proc/loadavg: 0.93 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1580472/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=7876 CPUtime=15.88
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 1909 0 0 0 1588 0 0 0 25 0 1 0 202430672 8065024 1895 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134535206 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 1969 1895 67 113 0 1853 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 7876

[startup+16.0011 s]
/proc/loadavg: 0.93 0.97 0.95 2/67 22138
/proc/meminfo: memFree=1580472/2055920 swapFree=4182160/4192956
[pid=22137] ppid=22135 vsize=7876 CPUtime=15.98
/proc/22137/stat : 22137 (tts-4-0) R 22135 22137 21403 0 -1 4194304 1912 0 0 0 1598 0 0 0 25 0 1 0 202430672 8065024 1898 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/22137/statm: 1969 1898 67 113 0 1853 0
Current children cumulated CPU time (s) 15.98
Current children cumulated vsize (KiB) 7876

Child status: 20
Real time (s): 16.0095
CPU time (s): 16.0036
CPU user time (s): 15.9916
CPU system time (s): 0.011998
CPU usage (%): 99.963
Max. virtual memory (cumulated for all children) (KiB): 7876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.9916
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1914
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= 45

runsolver used 0.013997 second user time and 0.050992 second system time

The end

Launcher Data (download as text)

Begin job on node54 on Thu Apr 26 01:22:42 UTC 2007

IDJOB= 369993
IDBENCH= 20432
IDSOLVER= 178
FILE ID= node54/369993-1177550562

PBS_JOBID= 4696633

Free space on /tmp= 66340 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s77-100.cnf
COMMAND LINE= /tmp/evaluation/369993-1177550562/tts-4-0 /tmp/evaluation/369993-1177550562/instance-369993-1177550562.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node54/watcher-369993-1177550562 -o ROOT/results/node54/solver-369993-1177550562 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/369993-1177550562/tts-4-0 /tmp/evaluation/369993-1177550562/instance-369993-1177550562.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  124e32713f66a3b30ead344822177706

RANDOM SEED= 641840110

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node54.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		: 3000.234
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		: 3000.234
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:       1588312 kB
Buffers:         43828 kB
Cached:         328352 kB
SwapCached:       4132 kB
Active:         180648 kB
Inactive:       215832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1588312 kB
SwapTotal:     4192956 kB
SwapFree:      4182160 kB
Dirty:             532 kB
Writeback:           0 kB
Mapped:          30168 kB
Slab:            57000 kB
Committed_AS:  2350044 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66340 MiB

End job on node54 on Thu Apr 26 01:22:58 UTC 2007