Trace number 316134

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 58.6451 58.671

General information on the benchmark

Namecrafted/spence/
medium/s81-100.cnf
MD5SUMc54dc2c72b4650fba00496c966a1cea8
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark58.6451
Satisfiable
(Un)Satisfiability was proved
Number of variables81
Number of clauses172
Sum of the clauses size516
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3172
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

58.57/58.66	c Command: /tmp/evaluation/316134-1172664509/tts-4-0 /tmp/evaluation/316134-1172664509/instance-316134-1172664509.cnf 
58.57/58.66	c CPU limit set to 1200.000000
58.57/58.66	c Variables = 81
58.57/58.66	c Clauses = 172
58.57/58.66	c Literals = 516
58.57/58.66	c Reduced size:
58.57/58.66	c Variables = 81
58.57/58.66	c Clauses = 172
58.57/58.66	c Literals = 516
58.57/58.66	c Independent sub-problems = 1
58.57/58.66	c Sub-problem with 81 variables
58.57/58.66	c using permutation method 3
58.57/58.66	c Ordering finished 0.290 seconds
58.57/58.66	c mapped 0.290 seconds
58.57/58.66	c permuted 0.290 seconds
58.57/58.66	c init finished 0.290 seconds
58.57/58.66	c tree built 0.290 seconds
58.57/58.66	c Partial assignments = 1501678, improvements = 234056
58.57/58.66	s UNSATISFIABLE
58.57/58.66	c Time = 58.65 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/node71/watcher-316134-1172664509 -o ROOT/results/node71/solver-316134-1172664509 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/316134-1172664509/tts-4-0 /tmp/evaluation/316134-1172664509/instance-316134-1172664509.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: 0.85 0.95 0.97 3/64 7532
/proc/meminfo: memFree=1715296/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=796 CPUtime=0
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 101 0 0 0 0 0 0 0 18 0 1 0 286408708 815104 86 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134555618 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 199 86 62 113 0 83 0

[startup+0.091115 s]
/proc/loadavg: 0.85 0.95 0.97 3/64 7532
/proc/meminfo: memFree=1715296/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=796 CPUtime=0.08
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 101 0 0 0 8 0 0 0 18 0 1 0 286408708 815104 86 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134557218 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 199 86 62 113 0 83 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 796

[startup+0.101114 s]
/proc/loadavg: 0.85 0.95 0.97 3/64 7532
/proc/meminfo: memFree=1715296/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=796 CPUtime=0.09
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 101 0 0 0 9 0 0 0 18 0 1 0 286408708 815104 86 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134555649 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 199 86 62 113 0 83 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 796

[startup+0.301158 s]
/proc/loadavg: 0.85 0.95 0.97 3/64 7532
/proc/meminfo: memFree=1715296/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=936 CPUtime=0.29
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 145 0 0 0 29 0 0 0 19 0 1 0 286408708 958464 130 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 234 130 67 113 0 118 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 936

[startup+0.701244 s]
/proc/loadavg: 0.85 0.95 0.97 3/64 7532
/proc/meminfo: memFree=1715296/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=1556 CPUtime=0.69
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 295 0 0 0 69 0 0 0 22 0 1 0 286408708 1593344 280 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 389 280 67 113 0 273 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1556

[startup+1.50242 s]
/proc/loadavg: 0.85 0.95 0.97 2/65 7533
/proc/meminfo: memFree=1714008/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=2260 CPUtime=1.49
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 518 0 0 0 149 0 0 0 25 0 1 0 286408708 2314240 503 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134591622 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 565 503 67 113 0 449 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2260

[startup+3.10176 s]
/proc/loadavg: 0.85 0.95 0.97 2/65 7533
/proc/meminfo: memFree=1712856/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=3436 CPUtime=3.09
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 793 0 0 0 309 0 0 0 25 0 1 0 286408708 3518464 778 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 859 778 67 113 0 743 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 3436

[startup+6.30146 s]
/proc/loadavg: 0.86 0.95 0.97 2/65 7533
/proc/meminfo: memFree=1711064/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=5076 CPUtime=6.29
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 1171 0 0 0 629 0 0 0 25 0 1 0 286408708 5197824 1156 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134535187 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 1269 1156 67 113 0 1153 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 5076

[startup+12.7018 s]
/proc/loadavg: 0.87 0.95 0.97 2/65 7533
/proc/meminfo: memFree=1708656/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=7420 CPUtime=12.68
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 1774 0 0 0 1268 0 0 0 25 0 1 0 286408708 7598080 1759 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134535181 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 1855 1759 67 113 0 1739 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 7420

[startup+25.5016 s]
/proc/loadavg: 0.90 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1705200/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=10700 CPUtime=25.48
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 2583 0 0 0 2547 1 0 0 25 0 1 0 286408708 10956800 2568 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534130 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 2675 2568 67 113 0 2559 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 10700

[startup+51.1012 s]
/proc/loadavg: 0.93 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1698992/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=16796 CPUtime=51.07
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 4153 0 0 0 5105 2 0 0 25 0 1 0 286408708 17199104 4138 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134641336 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 4199 4138 67 113 0 4083 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 16796

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

[startup+54.3019 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1698416/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=17496 CPUtime=54.27
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 4318 0 0 0 5425 2 0 0 25 0 1 0 286408708 17915904 4303 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534117 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 4374 4303 67 113 0 4258 0
Current children cumulated CPU time (s) 54.27
Current children cumulated vsize (KiB) 17496

[startup+55.9012 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1698160/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=17968 CPUtime=55.86
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 4391 0 0 0 5584 2 0 0 25 0 1 0 286408708 18399232 4376 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534368 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 4492 4376 67 113 0 4376 0
Current children cumulated CPU time (s) 55.86
Current children cumulated vsize (KiB) 17968

[startup+57.5016 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1697776/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=18200 CPUtime=57.46
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 4465 0 0 0 5744 2 0 0 25 0 1 0 286408708 18636800 4450 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 4550 4450 67 113 0 4434 0
Current children cumulated CPU time (s) 57.46
Current children cumulated vsize (KiB) 18200

[startup+58.3057 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1697520/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=18436 CPUtime=58.28
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 4509 0 0 0 5825 3 0 0 25 0 1 0 286408708 18878464 4494 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534352 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 4609 4494 67 113 0 4493 0
Current children cumulated CPU time (s) 58.28
Current children cumulated vsize (KiB) 18436

[startup+58.5018 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1697520/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=18436 CPUtime=58.47
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 4517 0 0 0 5844 3 0 0 25 0 1 0 286408708 18878464 4502 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534114 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 4609 4502 67 113 0 4493 0
Current children cumulated CPU time (s) 58.47
Current children cumulated vsize (KiB) 18436

[startup+58.6018 s]
/proc/loadavg: 0.94 0.96 0.97 2/65 7533
/proc/meminfo: memFree=1697520/2055920 swapFree=4183108/4192956
[pid=7532] ppid=7530 vsize=18436 CPUtime=58.57
/proc/7532/stat : 7532 (tts-4-0) R 7530 7532 6793 0 -1 4194304 4521 0 0 0 5854 3 0 0 25 0 1 0 286408708 18878464 4506 18446744073709551615 134512640 134976056 4294956640 18446744073709551615 134534095 0 0 4096 0 0 0 0 17 1 0 0
/proc/7532/statm: 4609 4506 67 113 0 4493 0
Current children cumulated CPU time (s) 58.57
Current children cumulated vsize (KiB) 18436

Child status: 20
Real time (s): 58.671
CPU time (s): 58.6451
CPU user time (s): 58.6111
CPU system time (s): 0.033994
CPU usage (%): 99.9558
Max. virtual memory (cumulated for all children) (KiB): 18436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 58.6111
system time used= 0.033994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4524
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= 93

runsolver used 0.035994 second user time and 0.135979 second system time

The end

Launcher Data (download as text)

Begin job on node71 on Wed Feb 28 12:08:29 UTC 2007

IDJOB= 316134
IDBENCH= 20434
IDSOLVER= 98
FILE ID= node71/316134-1172664509

PBS_JOBID= 3981211

Free space on /tmp= 66490 MiB

SOLVER NAME= TTS 4.0
BENCH NAME= HOME/pub/bench/SAT07/crafted/spence/medium/s81-100.cnf
COMMAND LINE= /tmp/evaluation/316134-1172664509/tts-4-0 /tmp/evaluation/316134-1172664509/instance-316134-1172664509.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node71/watcher-316134-1172664509 -o ROOT/results/node71/solver-316134-1172664509 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/316134-1172664509/tts-4-0 /tmp/evaluation/316134-1172664509/instance-316134-1172664509.cnf            

META MD5SUM SOLVER= 73a7a27d0c2e86f9b1191433fde766ff
MD5SUM BENCH=  c54dc2c72b4650fba00496c966a1cea8

RANDOM SEED= 957060982

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node71.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		: 3000.266
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		: 3000.266
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:       1715640 kB
Buffers:          9180 kB
Cached:         275020 kB
SwapCached:       3576 kB
Active:         133888 kB
Inactive:       165704 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1715640 kB
SwapTotal:     4192956 kB
SwapFree:      4183108 kB
Dirty:             736 kB
Writeback:           0 kB
Mapped:          21440 kB
Slab:            26612 kB
Committed_AS:   832984 kB
PageTables:       1460 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= 66490 MiB

End job on node71 on Wed Feb 28 12:09:28 UTC 2007