Trace number 3362475

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 2.98554 3.00532

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-25-U-7061.cnf
MD5SUM23c04ef615431bf15ef9eafe9b944fb8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.571912
Satisfiable
(Un)Satisfiability was proved
Number of variables541150
Number of clauses1645836
Sum of the clauses size4001876
Maximum clause length1576
Minimum clause length1
Number of clauses of size 1141
Number of clauses of size 21092306
Number of clauses of size 3543262
Number of clauses of size 44256
Number of clauses of size 51339
Number of clauses of size over 54532

Solver Data 

2.87/2.99	WARNING: for repeatability, setting FPU to use double precision
2.87/2.99	============================[ Problem Statistics ]=============================
2.87/2.99	|                                                                             |
2.87/2.99	|  Number of variables:        541150                                         |
2.87/2.99	|  Number of clauses:         1576290                                         |
2.87/2.99	|  Parse time:                   0.70 s                                       |
2.87/2.99	|  Eliminated clauses:           9.79 Mb                                      |
2.87/2.99	|  Simplification time:          2.17 s                                       |
2.87/2.99	|                                                                             |
2.87/2.99	===============================================================================
2.87/2.99	Solved by simplification
2.87/2.99	restarts              : 0
2.87/2.99	conflicts             : 0              (0 /sec)
2.87/2.99	decisions             : 0              ( nan % random) (0 /sec)
2.87/2.99	propagations          : 34400          (11988 /sec)
2.87/2.99	conflict literals     : 0              ( nan % deleted)
2.87/2.99	Memory used           : 275.00 MB
2.87/2.99	CPU time              : 2.86956 s
2.87/2.99	
2.87/2.99	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-3362475-1305309214/watcher-3362475-1305309214 -o /tmp/evaluation-result-3362475-1305309214/solver-3362475-1305309214 -C 2400 -W 1300 -M 7680 minisat_release HOME/instance-3362475-1305309214.cnf 

running on 2 cores: 4,6

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 3/285 31076
/proc/meminfo: memFree=14497884/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=2492 CPUtime=0 cores=4,6
/proc/31076/stat : 31076 (minisat_release) S 31074 31076 30738 0 -1 4194304 88 0 0 0 0 0 0 0 17 0 1 0 642521129 2551808 43 33554432000 4194304 4291037 140736426686512 18446744073709551615 274659884679 0 2147483391 4096 0 18446744071699109054 0 0 17 4 0 0 0
/proc/31076/statm: 623 43 34 24 0 23 0

[startup+0.0451449 s]
/proc/loadavg: 2.75 3.07 3.46 3/285 31076
/proc/meminfo: memFree=14497884/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=39516 CPUtime=0.01 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 5023 0 0 0 1 0 0 0 17 0 1 0 642521129 40464384 4951 33554432000 4194304 4291037 140736426686512 18446744073709551615 4277473 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 9879 4963 216 24 0 6513 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 39516

[startup+0.101096 s]
/proc/loadavg: 2.75 3.07 3.46 3/285 31076
/proc/meminfo: memFree=14497884/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=85884 CPUtime=0.07 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 12551 0 0 0 6 1 0 0 17 0 1 0 642521129 87945216 12410 33554432000 4194304 4291037 140736426686512 18446744073709551615 4277473 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 21471 12413 216 24 0 18105 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 85884

[startup+0.3011 s]
/proc/loadavg: 2.75 3.07 3.46 3/285 31076
/proc/meminfo: memFree=14497884/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=117876 CPUtime=0.27 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 23237 0 0 0 24 3 0 0 18 0 1 0 642521129 120705024 21881 33554432000 4194304 4291037 140736426686512 18446744073709551615 274664469189 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 29469 21882 216 24 0 26103 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 117876

[startup+0.701043 s]
/proc/loadavg: 2.75 3.07 3.46 3/285 31076
/proc/meminfo: memFree=14497884/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=190980 CPUtime=0.67 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 44041 0 0 0 61 6 0 0 18 0 1 0 642521129 195563520 39577 33554432000 4194304 4291037 140736426686512 18446744073709551615 274664469189 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 47745 39578 216 24 0 44379 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 190980

[startup+1.5009 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=14040208/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=211028 CPUtime=1.47 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 50714 0 0 0 140 7 0 0 19 0 1 0 642521129 216092672 44506 33554432000 4194304 4291037 140736426686512 18446744073709551615 4232769 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 52757 44506 239 24 0 49391 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 211028

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

[startup+2.30073 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13745996/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=282324 CPUtime=2.27 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 60126 0 0 0 218 9 0 0 21 0 1 0 642521129 289099776 53433 33554432000 4194304 4291037 140736426686512 18446744073709551615 4211889 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 70581 53433 239 24 0 67215 0
Current children cumulated CPU time (s) 2.27
Current children cumulated vsize (KiB) 282324

[startup+2.70066 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13745996/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=237368 CPUtime=2.67 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 67315 0 0 0 257 10 0 0 22 0 1 0 642521129 243064832 49946 33554432000 4194304 4291037 140736426686512 18446744073709551615 4277852 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 59342 49946 239 24 0 55976 0
Current children cumulated CPU time (s) 2.67
Current children cumulated vsize (KiB) 237368

[startup+2.90062 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13745996/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=210116 CPUtime=2.87 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202496 68201 0 0 0 277 10 0 0 23 0 1 0 642521129 215158784 44482 33554432000 4194304 4291037 140736426686512 18446744073709551615 274664467253 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/31076/statm: 52529 44482 239 24 0 49163 0
Current children cumulated CPU time (s) 2.87
Current children cumulated vsize (KiB) 210116

[startup+3.0006 s]
/proc/loadavg: 2.75 3.07 3.46 4/290 31083
/proc/meminfo: memFree=13745996/32951132 swapFree=67093824/67111528
[pid=31076] ppid=31074 vsize=0 CPUtime=2.97 cores=4,6
/proc/31076/stat : 31076 (minisat_release) R 31074 31076 30738 0 -1 4202500 72524 0 0 0 286 11 0 0 23 0 1 0 642521129 0 0 33554432000 0 0 0 0 0 0 0 4096 8388610 18446744073709551615 0 0 17 4 0 0 0
/proc/31076/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 3.00532
CPU time (s): 2.98554
CPU user time (s): 2.86956
CPU system time (s): 0.115982
CPU usage (%): 99.3419
Max. virtual memory (cumulated for all children) (KiB): 282324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.86956
system time used= 0.115982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 72524
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= 13
involuntary context switches= 5

runsolver used 0.008998 second user time and 0.024996 second system time

The end

Launcher Data 

Begin job on node131 at 2011-05-13 19:53:35
IDJOB=3362475
IDBENCH=88185
IDSOLVER=1840
FILE ID=node131/3362475-1305309214
RUNJOBID= node131-1305309213-31054
PBS_JOBID= 13321477
Free space on /tmp= 52468 MiB

SOLVER NAME= minisat hack reference: minisat 2.2.0
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-25-U-7061.cnf
COMMAND LINE= minisat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3362475-1305309214/watcher-3362475-1305309214 -o /tmp/evaluation-result-3362475-1305309214/solver-3362475-1305309214 -C 2400 -W 1300 -M 7680  minisat_release HOME/instance-3362475-1305309214.cnf

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=1272683182

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:      14501604 kB
Buffers:        231984 kB
Cached:        8070624 kB
SwapCached:       1504 kB
Active:       10608232 kB
Inactive:      7475208 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      14501604 kB
SwapTotal:    67111528 kB
SwapFree:     67093824 kB
Dirty:          122888 kB
Writeback:           0 kB
AnonPages:     9778852 kB
Mapped:          26632 kB
Slab:           271716 kB
PageTables:      31464 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 28089476 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= 52436 MiB
End job on node131 at 2011-05-13 19:54:14