Trace number 3362474

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
minisat hack reference: minisat 2.2.0UNSAT 3.97739 4.04207

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-6-U-7061.cnf
MD5SUMb15321a24257fa4bdfd9c20c782f4c0e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.97739
Satisfiable
(Un)Satisfiability was proved
Number of variables370048
Number of clauses1118066
Sum of the clauses size2910246
Maximum clause length493
Minimum clause length1
Number of clauses of size 194
Number of clauses of size 2742801
Number of clauses of size 3369913
Number of clauses of size 41454
Number of clauses of size 5618
Number of clauses of size over 53186

Solver Data 

3.92/4.03	WARNING: for repeatability, setting FPU to use double precision
3.92/4.03	============================[ Problem Statistics ]=============================
3.92/4.03	|                                                                             |
3.92/4.03	|  Number of variables:        370048                                         |
3.92/4.03	|  Number of clauses:         1059934                                         |
3.92/4.03	|  Parse time:                   0.48 s                                       |
3.92/4.03	|  Eliminated clauses:           9.70 Mb                                      |
3.92/4.03	|  Simplification time:          2.71 s                                       |
3.92/4.03	|                                                                             |
3.92/4.03	============================[ Search Statistics ]==============================
3.92/4.03	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
3.92/4.03	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
3.92/4.03	===============================================================================
3.92/4.03	|       100 |   68129   407829  1307727 |   149537       99     18 |  9.019 % |
3.92/4.03	|       250 |   67905   407829  1307727 |   164491      241     21 |  9.079 % |
3.92/4.03	|       475 |   67880   407829  1307727 |   180940      462     32 |  9.086 % |
3.92/4.03	|       812 |   67544   404736  1296774 |   199034      731     32 |  9.177 % |
3.92/4.03	===============================================================================
3.92/4.03	restarts              : 7
3.92/4.03	conflicts             : 979            (252 /sec)
3.92/4.03	decisions             : 3513           (0.00 % random) (905 /sec)
3.92/4.03	propagations          : 4609576        (1187298 /sec)
3.92/4.03	conflict literals     : 28056          (37.84 % deleted)
3.92/4.03	Memory used           : 184.00 MB
3.92/4.03	CPU time              : 3.88241 s
3.92/4.03	
3.92/4.03	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: 961)

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-3362474-1305309213/watcher-3362474-1305309213 -o /tmp/evaluation-result-3362474-1305309213/solver-3362474-1305309213 -C 2400 -W 1300 -M 7680 minisat_release HOME/instance-3362474-1305309213.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: 2.75 3.07 3.46 2/281 31070
/proc/meminfo: memFree=14627324/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=11796 CPUtime=0 cores=5,7
/proc/31070/stat : 31070 (runsolver) S 31068 31070 30738 0 -1 4202560 41 0 0 0 0 0 0 0 18 0 1 0 642521101 12079104 49 33554432000 4194304 5432360 140737104202592 18446744073709551615 4881623 0 2147483391 4096 24578 18446744071699870519 0 0 17 7 0 0 0
/proc/31070/statm: 2949 49 30 303 0 2643 0

[startup+0.0628379 s]
/proc/loadavg: 2.75 3.07 3.46 2/281 31070
/proc/meminfo: memFree=14627324/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=8156 CPUtime=0 cores=5,7
/proc/31070/stat : 31070 (minisat_release) S 31068 31070 30738 0 -1 4194304 98 0 0 0 0 0 0 0 17 0 1 0 642521101 8351744 52 33554432000 4194304 4291037 140733770025920 18446744073709551615 274659884679 0 2147483391 4096 0 18446744071699109054 0 0 17 5 0 0 0
/proc/31070/statm: 2039 52 40 24 0 44 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8156

[startup+0.100825 s]
/proc/loadavg: 2.75 3.07 3.46 2/281 31070
/proc/meminfo: memFree=14627324/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=49068 CPUtime=0.02 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 6888 0 0 0 2 0 0 0 17 0 1 0 642521101 50245632 6812 33554432000 4194304 4291037 140733770025920 18446744073709551615 4277473 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 12267 6824 216 24 0 8901 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 49068

[startup+0.300819 s]
/proc/loadavg: 2.75 3.07 3.46 2/281 31070
/proc/meminfo: memFree=14627324/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=93448 CPUtime=0.23 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 18456 0 0 0 21 2 0 0 17 0 1 0 642521101 95690752 17145 33554432000 4194304 4291037 140733770025920 18446744073709551615 274664469189 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 23362 17147 216 24 0 19996 0
Current children cumulated CPU time (s) 0.23
Current children cumulated vsize (KiB) 93448

[startup+0.700719 s]
/proc/loadavg: 2.75 3.07 3.46 2/281 31070
/proc/meminfo: memFree=14627324/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=156472 CPUtime=0.63 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 34804 0 0 0 58 5 0 0 18 0 1 0 642521101 160227328 30654 33554432000 4194304 4291037 140733770025920 18446744073709551615 4230081 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 39118 30654 238 24 0 35752 0
Current children cumulated CPU time (s) 0.63
Current children cumulated vsize (KiB) 156472

[startup+1.50054 s]
/proc/loadavg: 2.75 3.07 3.46 4/285 31077
/proc/meminfo: memFree=14171688/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=164128 CPUtime=1.42 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 37423 0 0 0 137 5 0 0 19 0 1 0 642521101 168067072 33172 33554432000 4194304 4291037 140733770025920 18446744073709551615 4277897 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 41032 33172 239 24 0 37666 0
Current children cumulated CPU time (s) 1.42
Current children cumulated vsize (KiB) 164128

[startup+3.10027 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13821512/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=179768 CPUtime=3.03 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 54637 0 0 0 295 8 0 0 23 0 1 0 642521101 184082432 37853 33554432000 4194304 4291037 140733770025920 18446744073709551615 4229971 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 44942 37853 239 24 0 41576 0
Current children cumulated CPU time (s) 3.03
Current children cumulated vsize (KiB) 179768

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

[startup+3.50021 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13632288/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=172536 CPUtime=3.42 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 56863 0 0 0 334 8 0 0 25 0 1 0 642521101 176676864 35439 33554432000 4194304 4291037 140733770025920 18446744073709551615 4255624 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 43134 35439 255 24 0 39768 0
Current children cumulated CPU time (s) 3.42
Current children cumulated vsize (KiB) 172536

[startup+3.90113 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13632288/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=172536 CPUtime=3.82 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 56884 0 0 0 374 8 0 0 25 0 1 0 642521101 176676864 35460 33554432000 4194304 4291037 140733770025920 18446744073709551615 4255676 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 43134 35460 255 24 0 39768 0
Current children cumulated CPU time (s) 3.82
Current children cumulated vsize (KiB) 172536

[startup+4.00112 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13632288/32951132 swapFree=67093824/67111528
[pid=31070] ppid=31068 vsize=172536 CPUtime=3.92 cores=5,7
/proc/31070/stat : 31070 (minisat_release) R 31068 31070 30738 0 -1 4202496 56888 0 0 0 384 8 0 0 25 0 1 0 642521101 176676864 35464 33554432000 4194304 4291037 140733770025920 18446744073709551615 4255953 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/31070/statm: 43134 35464 255 24 0 39768 0
Current children cumulated CPU time (s) 3.92
Current children cumulated vsize (KiB) 172536

Child status: 20
Real time (s): 4.04207
CPU time (s): 3.97739
CPU user time (s): 3.88241
CPU system time (s): 0.094985
CPU usage (%): 98.4
Max. virtual memory (cumulated for all children) (KiB): 188940

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.88241
system time used= 0.094985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 56903
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= 17
involuntary context switches= 58

runsolver used 0.006998 second user time and 0.034994 second system time

The end

Launcher Data 

Begin job on node131 at 2011-05-13 19:53:34
IDJOB=3362474
IDBENCH=88178
IDSOLVER=1840
FILE ID=node131/3362474-1305309213
RUNJOBID= node131-1305309213-31056
PBS_JOBID= 13321477
Free space on /tmp= 52516 MiB

SOLVER NAME= minisat hack reference: minisat 2.2.0
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-6-U-7061.cnf
COMMAND LINE= minisat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3362474-1305309213/watcher-3362474-1305309213 -o /tmp/evaluation-result-3362474-1305309213/solver-3362474-1305309213 -C 2400 -W 1300 -M 7680  minisat_release HOME/instance-3362474-1305309213.cnf

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

MD5SUM BENCH= b15321a24257fa4bdfd9c20c782f4c0e
RANDOM SEED=492608620

node131.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		: 2666.830
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.83
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.77
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		: 2666.830
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	: 5332.75
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		: 2666.830
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		: 2666.830
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      14631872 kB
Buffers:        231948 kB
Cached:        8004312 kB
SwapCached:       1504 kB
Active:       10513216 kB
Inactive:      7440784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      14631872 kB
SwapTotal:    67111528 kB
SwapFree:     67093824 kB
Dirty:           88356 kB
Writeback:           0 kB
AnonPages:     9715996 kB
Mapped:          26244 kB
Slab:           270936 kB
PageTables:      31464 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 27995384 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 52416 MiB
End job on node131 at 2011-05-13 19:54:03