Trace number 331093

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) 12.875 12.8835

General information on the benchmark

Nameindustrial/vliw_unsat_2.0/
9dlx_vliw_at_b_iq8.cnf
MD5SUM776da55785376fd8eac6989ca812b102
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 variables371419
Number of clauses7170909
Sum of the clauses size20872419
Maximum clause length205
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 26770451
Number of clauses of size 392326
Number of clauses of size 48862
Number of clauses of size 523554
Number of clauses of size over 5275715

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/331093-1173180173/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
12.68/12.78	c this formula cannot been solved by kcnfs
12.68/12.78

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/node9/watcher-331093-1173180173 -o ROOT/results/node9/solver-331093-1173180173 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/331093-1173180173/kcnfs-2006 /tmp/evaluation/331093-1173180173/instance-331093-1173180173.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: 1.12 1.06 1.01 2/77 21776
/proc/meminfo: memFree=1714312/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=180908 CPUtime=0
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 113 0 0 0 0 0 0 0 18 0 1 0 337972853 185249792 98 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 45227 99 47 158 0 45067 0

[startup+0.027216 s]
/proc/loadavg: 1.12 1.06 1.01 2/77 21776
/proc/meminfo: memFree=1714312/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=181964 CPUtime=0.02
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 389 0 0 0 2 0 0 0 18 0 1 0 337972853 186331136 374 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 45491 374 47 158 0 45331 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 181964

[startup+0.101231 s]
/proc/loadavg: 1.12 1.06 1.01 2/77 21776
/proc/meminfo: memFree=1714312/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=185924 CPUtime=0.09
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 1367 0 0 0 9 0 0 0 18 0 1 0 337972853 190386176 1352 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 46481 1353 47 158 0 46321 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 185924

[startup+0.30127 s]
/proc/loadavg: 1.12 1.06 1.01 2/77 21776
/proc/meminfo: memFree=1714312/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=196220 CPUtime=0.29
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 3938 0 0 0 26 3 0 0 19 0 1 0 337972853 200929280 3923 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 49055 3923 47 158 0 48895 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196220

[startup+0.701347 s]
/proc/loadavg: 1.12 1.06 1.01 2/77 21776
/proc/meminfo: memFree=1714312/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=216416 CPUtime=0.69
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 8989 0 0 0 64 5 0 0 23 0 1 0 337972853 221609984 8974 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 54104 8974 47 158 0 53944 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 216416

[startup+1.5015 s]
/proc/loadavg: 1.12 1.06 1.01 2/78 21777
/proc/meminfo: memFree=1665216/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=256544 CPUtime=1.49
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 19033 0 0 0 138 11 0 0 25 0 1 0 337972853 262701056 19018 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 64136 19018 47 158 0 63976 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 256544

[startup+3.10281 s]
/proc/loadavg: 1.11 1.06 1.01 2/78 21777
/proc/meminfo: memFree=1609856/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=336800 CPUtime=3.09
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 39099 0 0 0 289 20 0 0 25 0 1 0 337972853 344883200 39084 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 84200 39084 47 158 0 84040 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 336800

[startup+6.30142 s]
/proc/loadavg: 1.11 1.06 1.01 2/78 21777
/proc/meminfo: memFree=1446528/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=494672 CPUtime=6.28
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 78561 0 0 0 588 40 0 0 25 0 1 0 337972853 506544128 78546 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 123668 78546 47 158 0 123508 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 494672

[startup+12.7017 s]
/proc/loadavg: 1.09 1.05 1.00 2/78 21777
/proc/meminfo: memFree=1121024/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=809888 CPUtime=12.68
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194304 157365 0 0 0 1189 79 0 0 25 0 1 0 337972853 829325312 157350 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 202472 157350 47 158 0 202312 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 809888

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

[startup+12.8027 s]
/proc/loadavg: 1.09 1.05 1.00 2/78 21777
/proc/meminfo: memFree=1121024/2055920 swapFree=4152252/4192956
[pid=21776] ppid=21774 vsize=0 CPUtime=12.79
/proc/21776/stat : 21776 (kcnfs-2006) R 21774 21776 21032 0 -1 4194308 158383 0 0 0 1197 82 0 0 24 0 1 0 337972853 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/21776/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 12.8835
CPU time (s): 12.875
CPU user time (s): 11.9742
CPU system time (s): 0.900863
CPU usage (%): 99.934
Max. virtual memory (cumulated for all children) (KiB): 809888

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 11.9742
system time used= 0.900863
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 158383
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= 9
involuntary context switches= 264

runsolver used 0.010998 second user time and 0.041993 second system time

The end

Launcher Data (download as text)

Begin job on node9 on Tue Mar  6 11:23:02 UTC 2007

IDJOB= 331093
IDBENCH= 20579
IDSOLVER= 113
FILE ID= node9/331093-1173180173

PBS_JOBID= 4015028

Free space on /tmp= 66280 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_unsat_2.0/9dlx_vliw_at_b_iq8.cnf
COMMAND LINE= /tmp/evaluation/331093-1173180173/kcnfs-2006 /tmp/evaluation/331093-1173180173/instance-331093-1173180173.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-331093-1173180173 -o ROOT/results/node9/solver-331093-1173180173 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/331093-1173180173/kcnfs-2006 /tmp/evaluation/331093-1173180173/instance-331093-1173180173.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  776da55785376fd8eac6989ca812b102

RANDOM SEED= 746755405

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node9.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:       1714528 kB
Buffers:         17164 kB
Cached:         248056 kB
SwapCached:       8684 kB
Active:         216560 kB
Inactive:        71148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1714528 kB
SwapTotal:     4192956 kB
SwapFree:      4152252 kB
Dirty:          159812 kB
Writeback:           0 kB
Mapped:          29544 kB
Slab:            39308 kB
Committed_AS:  1436520 kB
PageTables:       1688 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= 66280 MiB

End job on node9 on Tue Mar  6 11:23:15 UTC 2007