Trace number 330883

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
KCNFS 2006? (exit code) 17.2954 17.301

General information on the benchmark

Nameindustrial/vliw_unsat_2.0/
9dlx_vliw_at_b_iq9.cnf
MD5SUM9a43349587a435e7109b46b3aceb156e
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables482093
Number of clauses9676386
Sum of the clauses size28195028
Maximum clause length226
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 29152157
Number of clauses of size 3120945
Number of clauses of size 410067
Number of clauses of size 528986
Number of clauses of size over 5364230

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/330883-1173175908/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
17.09/17.17	c this formula cannot been solved by kcnfs
17.09/17.17

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node68/watcher-330883-1173175908 -o ROOT/results/node68/solver-330883-1173175908 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/330883-1173175908/kcnfs-2006 /tmp/evaluation/330883-1173175908/instance-330883-1173175908.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: 1.08 1.02 1.01 2/64 27920
/proc/meminfo: memFree=1208552/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=181172 CPUtime=0
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 176 0 0 0 0 0 0 0 18 0 1 0 337549735 185520128 161 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 45293 161 47 158 0 45133 0

[startup+0.082129 s]
/proc/loadavg: 1.08 1.02 1.01 2/64 27920
/proc/meminfo: memFree=1208552/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=185132 CPUtime=0.07
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 1169 0 0 0 7 0 0 0 18 0 1 0 337549735 189575168 1154 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 46283 1154 47 158 0 46123 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 185132

[startup+0.10113 s]
/proc/loadavg: 1.08 1.02 1.01 2/64 27920
/proc/meminfo: memFree=1208552/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=186056 CPUtime=0.09
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 1421 0 0 0 9 0 0 0 18 0 1 0 337549735 190521344 1406 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 46514 1407 47 158 0 46354 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186056

[startup+0.301148 s]
/proc/loadavg: 1.08 1.02 1.01 2/64 27920
/proc/meminfo: memFree=1208552/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=196484 CPUtime=0.29
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 4013 0 0 0 28 1 0 0 19 0 1 0 337549735 201199616 3998 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 49121 3999 47 158 0 48961 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196484

[startup+0.701184 s]
/proc/loadavg: 1.08 1.02 1.01 2/64 27920
/proc/meminfo: memFree=1208552/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=216944 CPUtime=0.69
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 9117 0 0 0 66 3 0 0 23 0 1 0 337549735 222150656 9102 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 54236 9102 47 158 0 54076 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 216944

[startup+1.50126 s]
/proc/loadavg: 1.08 1.02 1.01 2/65 27921
/proc/meminfo: memFree=1155104/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=257468 CPUtime=1.49
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 19248 0 0 0 141 8 0 0 25 0 1 0 337549735 263647232 19233 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 64367 19233 47 158 0 64207 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 257468

[startup+3.1014 s]
/proc/loadavg: 1.08 1.02 1.01 2/65 27921
/proc/meminfo: memFree=1100128/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=338252 CPUtime=3.09
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 39455 0 0 0 292 17 0 0 25 0 1 0 337549735 346370048 39440 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 84563 39441 47 158 0 84403 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 338252

[startup+6.30269 s]
/proc/loadavg: 1.07 1.02 1.00 2/65 27921
/proc/meminfo: memFree=937056/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=497444 CPUtime=6.29
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 79255 0 0 0 591 38 0 0 25 0 1 0 337549735 509382656 79240 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 124361 79240 47 158 0 124201 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 497444

[startup+12.7013 s]
/proc/loadavg: 1.07 1.02 1.00 2/65 27921
/proc/meminfo: memFree=608992/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=814904 CPUtime=12.68
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 158618 0 0 0 1191 77 0 0 25 0 1 0 337549735 834461696 158603 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 203726 158604 47 158 0 203566 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 814904

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

[startup+14.3054 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 27921
/proc/meminfo: memFree=500064/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=893972 CPUtime=14.29
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 178392 0 0 0 1343 86 0 0 25 0 1 0 337549735 915427328 178377 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 223493 178378 47 158 0 223333 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 893972

[startup+15.9016 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 27921
/proc/meminfo: memFree=445408/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=973040 CPUtime=15.88
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 198136 0 0 0 1493 95 0 0 25 0 1 0 337549735 996392960 198121 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 243260 198121 47 158 0 243100 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 973040

[startup+16.7016 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 27921
/proc/meminfo: memFree=391072/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=1012640 CPUtime=16.69
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 208060 0 0 0 1568 101 0 0 25 0 1 0 337549735 1036943360 208045 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 253160 208045 47 158 0 253000 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 1012640

[startup+17.1017 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 27921
/proc/meminfo: memFree=391072/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=1032308 CPUtime=17.09
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194304 212965 0 0 0 1606 103 0 0 25 0 1 0 337549735 1057083392 212950 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 258077 212950 47 158 0 257917 0
Current children cumulated CPU time (s) 17.09
Current children cumulated vsize (KiB) 1032308

[startup+17.2017 s]
/proc/loadavg: 1.06 1.02 1.00 2/65 27921
/proc/meminfo: memFree=391072/2055920 swapFree=4183224/4192956
[pid=27920] ppid=27918 vsize=0 CPUtime=17.19
/proc/27920/stat : 27920 (kcnfs-2006) R 27918 27920 27562 0 -1 4194308 213833 0 0 0 1613 106 0 0 25 0 1 0 337549735 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/27920/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 17.19
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 17.301
CPU time (s): 17.2954
CPU user time (s): 16.1305
CPU system time (s): 1.16482
CPU usage (%): 99.9676
Max. virtual memory (cumulated for all children) (KiB): 1032308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.1305
system time used= 1.16482
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 213833
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= 19

runsolver used 0.019996 second user time and 0.036994 second system time

The end

Launcher Data (download as text)

Begin job on node68 on Tue Mar  6 10:12:01 UTC 2007

IDJOB= 330883
IDBENCH= 20574
IDSOLVER= 113
FILE ID= node68/330883-1173175908

PBS_JOBID= 4015252

Free space on /tmp= 66220 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_unsat_2.0/9dlx_vliw_at_b_iq9.cnf
COMMAND LINE= /tmp/evaluation/330883-1173175908/kcnfs-2006 /tmp/evaluation/330883-1173175908/instance-330883-1173175908.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node68/watcher-330883-1173175908 -o ROOT/results/node68/solver-330883-1173175908 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/330883-1173175908/kcnfs-2006 /tmp/evaluation/330883-1173175908/instance-330883-1173175908.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  9a43349587a435e7109b46b3aceb156e

RANDOM SEED= 139977995

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node68.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:       1209152 kB
Buffers:         38680 kB
Cached:         718040 kB
SwapCached:       3724 kB
Active:         291372 kB
Inactive:       474872 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1209152 kB
SwapTotal:     4192956 kB
SwapFree:      4183224 kB
Dirty:          208236 kB
Writeback:           0 kB
Mapped:          15544 kB
Slab:            66692 kB
Committed_AS:   854040 kB
PageTables:       1380 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= 66220 MiB

End job on node68 on Tue Mar  6 10:12:18 UTC 2007