Trace number 316054

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 15.9906 15.9979

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 benchmark15.9906
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)

15.89/15.99	c Command: /tmp/evaluation/316054-1172663691/tts-4-0 /tmp/evaluation/316054-1172663691/instance-316054-1172663691.cnf 
15.89/15.99	c CPU limit set to 1200.000000
15.89/15.99	c Variables = 77
15.89/15.99	c Clauses = 164
15.89/15.99	c Literals = 492
15.89/15.99	c Reduced size:
15.89/15.99	c Variables = 77
15.89/15.99	c Clauses = 164
15.89/15.99	c Literals = 492
15.89/15.99	c Independent sub-problems = 1
15.89/15.99	c Sub-problem with 77 variables
15.89/15.99	c using permutation method 3
15.89/15.99	c Ordering finished 0.220 seconds
15.89/15.99	c mapped 0.220 seconds
15.89/15.99	c permuted 0.220 seconds
15.89/15.99	c init finished 0.220 seconds
15.89/15.99	c tree built 0.230 seconds
15.89/15.99	c Partial assignments = 605944, improvements = 89962
15.89/15.99	s UNSATISFIABLE
15.89/15.99	c Time = 15.99 seconds

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/node30/watcher-316054-1172663691 -o ROOT/results/node30/solver-316054-1172663691 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316054-1172663691/tts-4-0 /tmp/evaluation/316054-1172663691/instance-316054-1172663691.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: 0.99 0.97 0.97 3/77 6602
/proc/meminfo: memFree=1719472/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=796 CPUtime=0
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 100 0 0 0 0 0 0 0 18 0 1 0 260133111 815104 85 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134555641 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 199 85 62 113 0 83 0

[startup+0.0237801 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 6602
/proc/meminfo: memFree=1719472/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=796 CPUtime=0.02
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 100 0 0 0 2 0 0 0 18 0 1 0 260133111 815104 85 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134578288 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 199 85 62 113 0 83 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 796

[startup+0.102792 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 6602
/proc/meminfo: memFree=1719472/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=796 CPUtime=0.1
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 100 0 0 0 10 0 0 0 18 0 1 0 260133111 815104 85 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134556034 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 199 85 62 113 0 83 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 796

[startup+0.30182 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 6602
/proc/meminfo: memFree=1719472/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=1076 CPUtime=0.3
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 178 0 0 0 30 0 0 0 19 0 1 0 260133111 1101824 163 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534154 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 269 163 67 113 0 153 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1076

[startup+0.701877 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 6602
/proc/meminfo: memFree=1719472/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=1544 CPUtime=0.69
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 323 0 0 0 69 0 0 0 22 0 1 0 260133111 1581056 308 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534063 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 386 308 67 113 0 270 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1544

[startup+1.50199 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1718184/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=2252 CPUtime=1.49
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 479 0 0 0 149 0 0 0 25 0 1 0 260133111 2306048 464 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 563 464 67 113 0 447 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2252

[startup+3.10122 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1717352/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=3188 CPUtime=3.09
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 751 0 0 0 309 0 0 0 25 0 1 0 260133111 3264512 736 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534095 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 797 736 67 113 0 681 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3188

[startup+6.30168 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1715368/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=4828 CPUtime=6.29
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 1131 0 0 0 629 0 0 0 25 0 1 0 260133111 4943872 1116 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 1207 1116 67 113 0 1091 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 4828

[startup+12.7016 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1713000/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=6940 CPUtime=12.68
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 1666 0 0 0 1268 0 0 0 25 0 1 0 260133111 7106560 1651 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/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+14.3058 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1712168/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=7640 CPUtime=14.28
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 1826 0 0 0 1428 0 0 0 25 0 1 0 260133111 7823360 1811 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134543360 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 1910 1811 67 113 0 1794 0
Current children cumulated CPU time (s) 14.28
Current children cumulated vsize (KiB) 7640

[startup+15.1019 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1712168/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=7640 CPUtime=15.08
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 1865 0 0 0 1508 0 0 0 25 0 1 0 260133111 7823360 1850 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534154 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 1910 1850 67 113 0 1794 0
Current children cumulated CPU time (s) 15.08
Current children cumulated vsize (KiB) 7640

[startup+15.502 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1711976/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=7876 CPUtime=15.48
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 1889 0 0 0 1548 0 0 0 25 0 1 0 260133111 8065024 1874 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 1969 1874 67 113 0 1853 0
Current children cumulated CPU time (s) 15.48
Current children cumulated vsize (KiB) 7876

[startup+15.901 s]
/proc/loadavg: 0.99 0.97 0.97 2/78 6603
/proc/meminfo: memFree=1711976/2055920 swapFree=4151432/4192956
[pid=6602] ppid=6600 vsize=7876 CPUtime=15.89
/proc/6602/stat : 6602 (tts-4-0) R 6600 6602 6485 0 -1 4194304 1910 0 0 0 1588 1 0 0 25 0 1 0 260133111 8065024 1895 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534130 0 0 4096 0 0 0 0 17 1 0 0
/proc/6602/statm: 1969 1895 67 113 0 1853 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 7876

Child status: 20
Real time (s): 15.9979
CPU time (s): 15.9906
CPU user time (s): 15.9776
CPU system time (s): 0.012998
CPU usage (%): 99.9541
Max. virtual memory (cumulated for all children) (KiB): 7876

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.9776
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1915
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= 25

runsolver used 0.022996 second user time and 0.040993 second system time

The end

Launcher Data (download as text)

Begin job on node30 on Wed Feb 28 11:54:51 UTC 2007

IDJOB= 316054
IDBENCH= 20432
IDSOLVER= 98
FILE ID= node30/316054-1172663691

PBS_JOBID= 3981226

Free space on /tmp= 66474 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s77-100.cnf
COMMAND LINE= /tmp/evaluation/316054-1172663691/tts-4-0 /tmp/evaluation/316054-1172663691/instance-316054-1172663691.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-316054-1172663691 -o ROOT/results/node30/solver-316054-1172663691 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316054-1172663691/tts-4-0 /tmp/evaluation/316054-1172663691/instance-316054-1172663691.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  124e32713f66a3b30ead344822177706

RANDOM SEED= 650169339

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node30.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		: 3000.270
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		: 3000.270
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:       1719880 kB
Buffers:         27920 kB
Cached:         220332 kB
SwapCached:       8924 kB
Active:          75704 kB
Inactive:       198660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1719880 kB
SwapTotal:     4192956 kB
SwapFree:      4151432 kB
Dirty:             552 kB
Writeback:           0 kB
Mapped:          30216 kB
Slab:            47080 kB
Committed_AS:   794636 kB
PageTables:       1884 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= 66474 MiB

End job on node30 on Wed Feb 28 11:55:07 UTC 2007