Trace number 331345

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) 24.9662 24.9766

General information on the benchmark

Nameindustrial/vliw_sat_4.0/
9vliw_m_9stages_iq3_C1_bug9.cnf
MD5SUM838f83d2fc04e408a3e66700f0dc0173
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark23.1635
Satisfiable
(Un)Satisfiability was proved
Number of variables521187
Number of clauses13378624
Sum of the clauses size39204898
Maximum clause length6689
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 28714594
Number of clauses of size 34209357
Number of clauses of size 425258
Number of clauses of size 515686
Number of clauses of size over 5413728

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/331345-1173183453/kcnfs-2006   V. 1.2
0.00/0.00	c reading file ... done
24.68/24.79	c this formula cannot been solved by kcnfs
24.68/24.79

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/node17/watcher-331345-1173183453 -o ROOT/results/node17/solver-331345-1173183453 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/331345-1173183453/kcnfs-2006 /tmp/evaluation/331345-1173183453/instance-331345-1173183453.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: 1.03 0.99 0.99 3/77 28522
/proc/meminfo: memFree=1282688/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=180908 CPUtime=0
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 125 0 0 0 0 0 0 0 18 0 1 0 338301359 185249792 110 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 45227 111 47 158 0 45067 0

[startup+0.0934289 s]
/proc/loadavg: 1.03 0.99 0.99 3/77 28522
/proc/meminfo: memFree=1282688/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=185792 CPUtime=0.08
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 1331 0 0 0 8 0 0 0 18 0 1 0 338301359 190251008 1316 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 46448 1316 47 158 0 46288 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 185792

[startup+0.10143 s]
/proc/loadavg: 1.03 0.99 0.99 3/77 28522
/proc/meminfo: memFree=1282688/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=186188 CPUtime=0.09
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 1434 0 0 0 9 0 0 0 18 0 1 0 338301359 190656512 1420 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 46547 1420 47 158 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186188

[startup+0.301451 s]
/proc/loadavg: 1.03 0.99 0.99 3/77 28522
/proc/meminfo: memFree=1282688/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=196484 CPUtime=0.29
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 4012 0 0 0 27 2 0 0 19 0 1 0 338301359 201199616 3997 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 49121 3997 47 158 0 48961 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196484

[startup+0.701493 s]
/proc/loadavg: 1.03 0.99 0.99 3/77 28522
/proc/meminfo: memFree=1282688/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=216944 CPUtime=0.69
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 9118 0 0 0 65 4 0 0 22 0 1 0 338301359 222150656 9103 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 54236 9104 47 158 0 54076 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 216944

[startup+1.50158 s]
/proc/loadavg: 1.03 0.99 0.99 2/78 28523
/proc/meminfo: memFree=1231928/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=257468 CPUtime=1.49
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 19251 0 0 0 140 9 0 0 25 0 1 0 338301359 263647232 19236 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134832765 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 64367 19236 47 158 0 64207 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 257468

[startup+3.10175 s]
/proc/loadavg: 1.11 1.00 1.00 2/78 28523
/proc/meminfo: memFree=1177912/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=338780 CPUtime=3.09
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 39582 0 0 0 290 19 0 0 25 0 1 0 338301359 346910720 39567 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 84695 39567 47 158 0 84535 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 338780

[startup+6.30107 s]
/proc/loadavg: 1.11 1.00 1.00 2/78 28523
/proc/meminfo: memFree=1011960/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=499028 CPUtime=6.29
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 79665 0 0 0 589 40 0 0 25 0 1 0 338301359 511004672 79650 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 124790 79651 47 158 0 124630 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 499028

[startup+12.7017 s]
/proc/loadavg: 1.09 1.00 1.00 2/78 28523
/proc/meminfo: memFree=716352/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=776956 CPUtime=12.68
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 149122 0 0 0 1196 72 0 0 25 0 1 0 338301359 795602944 149107 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 194239 149107 47 158 0 194079 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 776956

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

[startup+19.1014 s]
/proc/loadavg: 1.09 1.00 1.00 2/78 28523
/proc/meminfo: memFree=409472/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=1081632 CPUtime=19.08
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 225314 0 0 0 1798 110 0 0 25 0 1 0 338301359 1107591168 225300 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 270408 225300 47 158 0 270248 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 1081632

[startup+22.3017 s]
/proc/loadavg: 1.08 1.00 1.00 2/78 28523
/proc/meminfo: memFree=234432/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=1251780 CPUtime=22.28
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 267827 0 0 0 2098 130 0 0 25 0 1 0 338301359 1281822720 267812 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 312945 267812 47 158 0 312785 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 1251780

[startup+23.9019 s]
/proc/loadavg: 1.08 1.00 1.00 2/78 28523
/proc/meminfo: memFree=176512/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=1335468 CPUtime=23.88
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 288758 0 0 0 2250 138 0 0 25 0 1 0 338301359 1367519232 288743 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 333867 288744 47 158 0 333707 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 1335468

[startup+24.702 s]
/proc/loadavg: 1.08 1.00 1.00 2/78 28523
/proc/meminfo: memFree=118784/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=1377576 CPUtime=24.68
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194304 299288 0 0 0 2323 145 0 0 25 0 1 0 338301359 1410637824 299273 18446744073709551615 134512640 135163436 4294956704 18446744073709551615 134811879 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 344394 299273 47 158 0 344234 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 1377576

[startup+24.902 s]
/proc/loadavg: 1.08 1.00 1.00 2/78 28523
/proc/meminfo: memFree=118784/2055920 swapFree=4168576/4192956
[pid=28522] ppid=28520 vsize=0 CPUtime=24.88
/proc/28522/stat : 28522 (kcnfs-2006) R 28520 28522 27573 0 -1 4194308 300550 0 0 0 2332 156 0 0 25 0 1 0 338301359 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 1 0 0
/proc/28522/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 24.88
Current children cumulated vsize (KiB) 0

Child status: 1
Real time (s): 24.9766
CPU time (s): 24.9662
CPU user time (s): 23.3275
CPU system time (s): 1.63875
CPU usage (%): 99.9584
Max. virtual memory (cumulated for all children) (KiB): 1377576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 23.3275
system time used= 1.63875
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 300550
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= 55

runsolver used 0.033994 second user time and 0.06399 second system time

The end

Launcher Data (download as text)

Begin job on node17 on Tue Mar  6 12:17:51 UTC 2007

IDJOB= 331345
IDBENCH= 20585
IDSOLVER= 113
FILE ID= node17/331345-1173183453

PBS_JOBID= 4015031

Free space on /tmp= 66201 MiB

SOLVER NAME= KCNFS 2006
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_sat_4.0/9vliw_m_9stages_iq3_C1_bug9.cnf
COMMAND LINE= /tmp/evaluation/331345-1173183453/kcnfs-2006 /tmp/evaluation/331345-1173183453/instance-331345-1173183453.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-331345-1173183453 -o ROOT/results/node17/solver-331345-1173183453 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/331345-1173183453/kcnfs-2006 /tmp/evaluation/331345-1173183453/instance-331345-1173183453.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  838f83d2fc04e408a3e66700f0dc0173

RANDOM SEED= 41924726

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node17.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		: 3000.229
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		: 3000.229
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:       1283096 kB
Buffers:         36488 kB
Cached:         612832 kB
SwapCached:       2120 kB
Active:         480760 kB
Inactive:       228688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1283096 kB
SwapTotal:     4192956 kB
SwapFree:      4168576 kB
Dirty:          227940 kB
Writeback:           0 kB
Mapped:          67916 kB
Slab:            48904 kB
Committed_AS:  1437548 kB
PageTables:       1836 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= 66201 MiB

End job on node17 on Tue Mar  6 12:18:16 UTC 2007