Trace number 370020

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 17.1624 17.1695

General information on the benchmark

Namecrafted/spence/
medium/s73-100.cnf
MD5SUMe3db629d913d76ea47534f9df94ead1b
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.1624
Satisfiable
(Un)Satisfiability was proved
Number of variables73
Number of clauses156
Sum of the clauses size468
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3156
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

17.09/17.16	c Command: /tmp/evaluation/370020-1177550760/tts-4-0 /tmp/evaluation/370020-1177550760/instance-370020-1177550760.cnf 
17.09/17.16	c CPU limit set to 5000.000000
17.09/17.16	c Variables = 73
17.09/17.16	c Clauses = 156
17.09/17.16	c Literals = 468
17.09/17.16	c Reduced size:
17.09/17.16	c Variables = 73
17.09/17.16	c Clauses = 156
17.09/17.16	c Literals = 468
17.09/17.16	c Independent sub-problems = 1
17.09/17.16	c Sub-problem with 73 variables
17.09/17.16	c using permutation method 3
17.09/17.16	c Ordering finished 0.210 seconds
17.09/17.16	c mapped 0.210 seconds
17.09/17.16	c permuted 0.210 seconds
17.09/17.16	c init finished 0.210 seconds
17.09/17.16	c tree built 0.210 seconds
17.09/17.16	c Partial assignments = 777291, improvements = 118733
17.09/17.16	s UNSATISFIABLE
17.09/17.16	c Time = 17.16 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/node38/watcher-370020-1177550760 -o ROOT/results/node38/solver-370020-1177550760 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/370020-1177550760/tts-4-0 /tmp/evaluation/370020-1177550760/instance-370020-1177550760.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: 0.92 0.99 0.94 3/77 27162
/proc/meminfo: memFree=1749968/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=796 CPUtime=0
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 187242628 815104 84 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134555604 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 199 84 62 113 0 83 0

[startup+0.0582659 s]
/proc/loadavg: 0.92 0.99 0.94 3/77 27162
/proc/meminfo: memFree=1749968/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=796 CPUtime=0.05
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 98 0 0 0 5 0 0 0 18 0 1 0 187242628 815104 84 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134632290 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 199 84 62 113 0 83 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 796

[startup+0.101214 s]
/proc/loadavg: 0.92 0.99 0.94 3/77 27162
/proc/meminfo: memFree=1749968/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=796 CPUtime=0.09
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 98 0 0 0 9 0 0 0 18 0 1 0 187242628 815104 84 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134588960 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 199 84 62 113 0 83 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 796

[startup+0.301253 s]
/proc/loadavg: 0.92 0.99 0.94 3/77 27162
/proc/meminfo: memFree=1749968/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=1064 CPUtime=0.29
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 176 0 0 0 29 0 0 0 19 0 1 0 187242628 1089536 162 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534440 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 266 162 67 113 0 150 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1064

[startup+0.701329 s]
/proc/loadavg: 0.92 0.99 0.94 3/77 27162
/proc/meminfo: memFree=1749968/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=1536 CPUtime=0.69
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 290 0 0 0 69 0 0 0 23 0 1 0 187242628 1572864 276 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534117 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 384 276 67 113 0 268 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1536

[startup+1.50148 s]
/proc/loadavg: 0.92 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1748744/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=2472 CPUtime=1.49
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 521 0 0 0 149 0 0 0 25 0 1 0 187242628 2531328 507 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 618 507 67 113 0 502 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2472

[startup+3.10179 s]
/proc/loadavg: 0.92 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1747592/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=3412 CPUtime=3.09
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 780 0 0 0 309 0 0 0 25 0 1 0 187242628 3493888 766 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134641285 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 853 766 67 113 0 737 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3412

[startup+6.30141 s]
/proc/loadavg: 0.93 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1745608/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=5052 CPUtime=6.29
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 1186 0 0 0 629 0 0 0 25 0 1 0 187242628 5173248 1172 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 1263 1172 67 113 0 1147 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5052

[startup+12.7016 s]
/proc/loadavg: 0.93 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1742488/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=8100 CPUtime=12.68
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 1921 0 0 0 1268 0 0 0 25 0 1 0 187242628 8294400 1907 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 2025 1907 67 113 0 1909 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 8100

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

[startup+14.3059 s]
/proc/loadavg: 0.93 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1741912/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=8568 CPUtime=14.29
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 2043 0 0 0 1429 0 0 0 25 0 1 0 187242628 8773632 2029 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534396 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 2142 2029 67 113 0 2026 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 8568

[startup+15.9012 s]
/proc/loadavg: 0.94 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1741272/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=9272 CPUtime=15.89
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 2231 0 0 0 1588 1 0 0 25 0 1 0 187242628 9494528 2217 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534060 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 2318 2217 67 113 0 2202 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 9272

[startup+16.7014 s]
/proc/loadavg: 0.94 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1740888/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=9504 CPUtime=16.69
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 2304 0 0 0 1668 1 0 0 25 0 1 0 187242628 9732096 2290 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134534095 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 2376 2290 67 113 0 2260 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 9504

[startup+17.1015 s]
/proc/loadavg: 0.94 0.99 0.94 2/78 27163
/proc/meminfo: memFree=1740888/2055920 swapFree=4159740/4192956
[pid=27162] ppid=27160 vsize=9740 CPUtime=17.09
/proc/27162/stat : 27162 (tts-4-0) R 27160 27162 25852 0 -1 4194304 2345 0 0 0 1708 1 0 0 25 0 1 0 187242628 9973760 2331 18446744073709551615 134512640 134976056 4294956672 18446744073709551615 134535580 0 0 4096 0 0 0 0 17 1 0 0
/proc/27162/statm: 2435 2331 67 113 0 2319 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 9740

Child status: 20
Real time (s): 17.1695
CPU time (s): 17.1624
CPU user time (s): 17.1474
CPU system time (s): 0.014997
CPU usage (%): 99.9583
Max. virtual memory (cumulated for all children) (KiB): 9740

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.1474
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2352
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= 374

runsolver used 0.016997 second user time and 0.041993 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Thu Apr 26 01:26:00 UTC 2007

IDJOB= 370020
IDBENCH= 20438
IDSOLVER= 178
FILE ID= node38/370020-1177550760

PBS_JOBID= 4696561

Free space on /tmp= 66260 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s73-100.cnf
COMMAND LINE= /tmp/evaluation/370020-1177550760/tts-4-0 /tmp/evaluation/370020-1177550760/instance-370020-1177550760.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-370020-1177550760 -o ROOT/results/node38/solver-370020-1177550760 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/370020-1177550760/tts-4-0 /tmp/evaluation/370020-1177550760/instance-370020-1177550760.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  e3db629d913d76ea47534f9df94ead1b

RANDOM SEED= 782155815

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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		: 3000.263
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		: 3000.263
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:       1750312 kB
Buffers:         36544 kB
Cached:         194036 kB
SwapCached:       3136 kB
Active:         152740 kB
Inactive:       102772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1750312 kB
SwapTotal:     4192956 kB
SwapFree:      4159740 kB
Dirty:             700 kB
Writeback:           0 kB
Mapped:          33160 kB
Slab:            35288 kB
Committed_AS:  1727328 kB
PageTables:       2064 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= 66260 MiB

End job on node38 on Thu Apr 26 01:26:17 UTC 2007