Trace number 3293760

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
PicoSAT 941UNSAT 26.376 26.3759

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-18-U-10652.cnf
MD5SUMf0f11935e861485056485b47c5e1a7c3
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.08
Satisfiable
(Un)Satisfiability was proved
Number of variables1987351
Number of clauses5963534
Sum of the clauses size14253662
Maximum clause length1155
Minimum clause length1
Number of clauses of size 1109
Number of clauses of size 23971661
Number of clauses of size 31984242
Number of clauses of size 4766
Number of clauses of size 5765
Number of clauses of size over 55991

Solver Data 

26.10/26.12	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3293760-1303791995/watcher-3293760-1303791995 -o /tmp/evaluation-result-3293760-1303791995/solver-3293760-1303791995 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3293760-1303791995.cnf 

running on 2 cores: 5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 3.42 3.88 3.82 4/189 19199
/proc/meminfo: memFree=22388008/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=99824 CPUtime=0 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 1938 0 0 0 0 0 0 0 21 0 1 0 471615015 102219776 1885 33554432000 134512640 134603332 4289755072 18446744073709551615 134557446 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 24956 1890 89 23 0 24582 0

[startup+0.0585869 s]
/proc/loadavg: 3.42 3.88 3.82 4/189 19199
/proc/meminfo: memFree=22388008/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=106992 CPUtime=0.05 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 17983 0 0 0 3 2 0 0 21 0 1 0 471615015 109559808 17930 33554432000 134512640 134603332 4289755072 18446744073709551615 134557477 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 26748 17944 89 23 0 26374 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 106992

[startup+0.100532 s]
/proc/loadavg: 3.42 3.88 3.82 4/189 19199
/proc/meminfo: memFree=22388008/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=107520 CPUtime=0.09 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 26508 0 0 0 7 2 0 0 21 0 1 0 471615015 110100480 26455 33554432000 134512640 134603332 4289755072 18446744073709551615 9586172 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 26880 26455 91 23 0 26506 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 107520

[startup+0.300497 s]
/proc/loadavg: 3.42 3.88 3.82 4/189 19199
/proc/meminfo: memFree=22388008/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=123188 CPUtime=0.29 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 30292 0 0 0 26 3 0 0 22 0 1 0 471615015 126144512 30239 33554432000 134512640 134603332 4289755072 18446744073709551615 9586172 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 30797 30240 91 23 0 30423 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 123188

[startup+0.700426 s]
/proc/loadavg: 3.42 3.88 3.82 4/189 19199
/proc/meminfo: memFree=22388008/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=164444 CPUtime=0.69 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 40170 0 0 0 63 6 0 0 24 0 1 0 471615015 168390656 40117 33554432000 134512640 134603332 4289755072 18446744073709551615 9586172 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 41111 40118 91 23 0 40737 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 164444

[startup+1.50028 s]
/proc/loadavg: 3.42 3.88 3.82 5/190 19200
/proc/meminfo: memFree=22098468/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=241672 CPUtime=1.49 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 59593 0 0 0 139 10 0 0 25 0 1 0 471615015 247472128 59540 33554432000 134512640 134603332 4289755072 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 60418 59541 91 23 0 60044 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 241672

[startup+3.101 s]
/proc/loadavg: 3.42 3.88 3.82 5/190 19200
/proc/meminfo: memFree=21899336/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=330784 CPUtime=3.09 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 79877 0 0 0 295 14 0 0 25 0 1 0 471615015 338722816 79824 33554432000 134512640 134603332 4289755072 18446744073709551615 134544160 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 82696 79824 98 23 0 82322 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 330784

[startup+6.30044 s]
/proc/loadavg: 3.55 3.90 3.83 5/190 19200
/proc/meminfo: memFree=21868960/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=330784 CPUtime=6.29 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 79877 0 0 0 615 14 0 0 25 0 1 0 471615015 338722816 79824 33554432000 134512640 134603332 4289755072 18446744073709551615 134543846 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 82696 79824 98 23 0 82322 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 330784

[startup+12.7003 s]
/proc/loadavg: 3.66 3.91 3.84 5/190 19200
/proc/meminfo: memFree=21870040/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=339624 CPUtime=12.69 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 81258 0 0 0 1255 14 0 0 25 0 1 0 471615015 347774976 81205 33554432000 134512640 134603332 4289755072 18446744073709551615 134555959 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 84906 81205 98 23 0 84532 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 339624

[startup+25.501 s]
/proc/loadavg: 3.74 3.92 3.84 5/190 19200
/proc/meminfo: memFree=21855540/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=339624 CPUtime=25.5 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 81301 0 0 0 2535 15 0 0 25 0 1 0 471615015 347774976 81248 33554432000 134512640 134603332 4289755072 18446744073709551615 134550801 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 84906 81248 98 23 0 84532 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 339624

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

[startup+25.701 s]
/proc/loadavg: 3.74 3.92 3.84 5/190 19200
/proc/meminfo: memFree=21855540/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=339624 CPUtime=25.7 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 81301 0 0 0 2555 15 0 0 25 0 1 0 471615015 347774976 81248 33554432000 134512640 134603332 4289755072 18446744073709551615 134528947 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 84906 81248 98 23 0 84532 0
Current children cumulated CPU time (s) 25.7
Current children cumulated vsize (KiB) 339624

[startup+26.1009 s]
/proc/loadavg: 3.74 3.92 3.84 5/190 19200
/proc/meminfo: memFree=21855540/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=340136 CPUtime=26.1 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 81448 0 0 0 2595 15 0 0 25 0 1 0 471615015 348299264 81395 33554432000 134512640 134603332 4289755072 18446744073709551615 134545706 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 85034 81396 98 23 0 84660 0
Current children cumulated CPU time (s) 26.1
Current children cumulated vsize (KiB) 340136

[startup+26.3069 s]
/proc/loadavg: 3.74 3.92 3.84 5/190 19201
/proc/meminfo: memFree=21852564/32951124 swapFree=67111528/67111528
[pid=19199] ppid=19197 vsize=192764 CPUtime=26.3 cores=5,7
/proc/19199/stat : 19199 (picosat) R 19197 19199 18361 0 -1 4202496 81501 0 0 0 2615 15 0 0 25 0 1 0 471615015 197390336 47869 33554432000 134512640 134603332 4289755072 18446744073709551615 9574619 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19199/statm: 48191 47869 100 23 0 47817 0
Current children cumulated CPU time (s) 26.3
Current children cumulated vsize (KiB) 192764

Child status: 20
Real time (s): 26.3759
CPU time (s): 26.376
CPU user time (s): 26.209
CPU system time (s): 0.166974
CPU usage (%): 100
Max. virtual memory (cumulated for all children) (KiB): 341164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.209
system time used= 0.166974
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 81502
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= 3
involuntary context switches= 36

runsolver used 0.036994 second user time and 0.106983 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-26 06:26:37
IDJOB=3293760
IDBENCH=88172
IDSOLVER=1604
FILE ID=node140/3293760-1303791995
RUNJOBID= node140-1303791995-19164
PBS_JOBID= 13157249
Free space on /tmp= 72552 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-18-U-10652.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3293760-1303791995/watcher-3293760-1303791995 -o /tmp/evaluation-result-3293760-1303791995/solver-3293760-1303791995 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3293760-1303791995.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= f0f11935e861485056485b47c5e1a7c3
RANDOM SEED=1256476895

node140.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.66
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5226.14
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.833
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22388660 kB
Buffers:       2245372 kB
Cached:        7297888 kB
SwapCached:          0 kB
Active:        2127788 kB
Inactive:      7855508 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22388660 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:          399380 kB
Writeback:           4 kB
AnonPages:      439564 kB
Mapped:          15236 kB
Slab:           514508 kB
PageTables:       5660 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   623364 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72552 MiB
End job on node140 at 2011-04-26 06:27:03