Trace number 3293852

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 4.38233 4.38376

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 

4.29/4.33	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-3293852-1303792034/watcher-3293852-1303792034 -o /tmp/evaluation-result-3293852-1303792034/solver-3293852-1303792034 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3293852-1303792034.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: 3.78 3.92 3.84 5/189 19252
/proc/meminfo: memFree=22189708/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=28688 CPUtime=0 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 1716 0 0 0 0 0 0 0 25 0 1 0 471618745 29376512 1662 33554432000 134512640 134603332 4293966768 18446744073709551615 134557477 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 7172 1669 89 23 0 6798 0

[startup+0.057888 s]
/proc/loadavg: 3.78 3.92 3.84 5/189 19252
/proc/meminfo: memFree=22189708/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=33856 CPUtime=0.04 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 7717 0 0 0 4 0 0 0 25 0 1 0 471618745 34668544 7663 33554432000 134512640 134603332 4293966768 18446744073709551615 9586172 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 8464 7663 91 23 0 8090 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 33856

[startup+0.10088 s]
/proc/loadavg: 3.78 3.92 3.84 5/189 19252
/proc/meminfo: memFree=22189708/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=37016 CPUtime=0.08 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 8463 0 0 0 8 0 0 0 25 0 1 0 471618745 37904384 8409 33554432000 134512640 134603332 4293966768 18446744073709551615 9586172 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 9254 8410 91 23 0 8880 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 37016

[startup+0.300843 s]
/proc/loadavg: 3.78 3.92 3.84 5/189 19252
/proc/meminfo: memFree=22189708/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=58816 CPUtime=0.29 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 13579 0 0 0 27 2 0 0 25 0 1 0 471618745 60227584 13525 33554432000 134512640 134603332 4293966768 18446744073709551615 9586172 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 14704 13526 91 23 0 14330 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 58816

[startup+0.700774 s]
/proc/loadavg: 3.78 3.92 3.84 5/189 19252
/proc/meminfo: memFree=22189708/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=94056 CPUtime=0.69 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 22285 0 0 0 65 4 0 0 25 0 1 0 471618745 96313344 22231 33554432000 134512640 134603332 4293966768 18446744073709551615 134581906 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 23514 22231 98 23 0 23140 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 94056

[startup+1.50063 s]
/proc/loadavg: 3.79 3.92 3.84 5/190 19253
/proc/meminfo: memFree=22095492/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=94056 CPUtime=1.49 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 22285 0 0 0 145 4 0 0 25 0 1 0 471618745 96313344 22231 33554432000 134512640 134603332 4293966768 18446744073709551615 134544029 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 23514 22231 98 23 0 23140 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 94056

[startup+3.10035 s]
/proc/loadavg: 3.79 3.92 3.84 5/190 19253
/proc/meminfo: memFree=22089664/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=96504 CPUtime=3.09 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 22820 0 0 0 305 4 0 0 25 0 1 0 471618745 98820096 22766 33554432000 134512640 134603332 4293966768 18446744073709551615 134573560 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 24126 22766 98 23 0 23752 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 96504

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

[startup+3.90021 s]
/proc/loadavg: 3.79 3.92 3.84 5/190 19253
/proc/meminfo: memFree=22085952/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=96504 CPUtime=3.89 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 22820 0 0 0 385 4 0 0 25 0 1 0 471618745 98820096 22766 33554432000 134512640 134603332 4293966768 18446744073709551615 134545136 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 24126 22766 98 23 0 23752 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 96504

[startup+4.30115 s]
/proc/loadavg: 3.79 3.92 3.84 5/190 19253
/proc/meminfo: memFree=22083844/32951124 swapFree=67111528/67111528
[pid=19252] ppid=19250 vsize=96504 CPUtime=4.29 cores=5,7
/proc/19252/stat : 19252 (picosat) R 19250 19252 18361 0 -1 4202496 22820 0 0 0 425 4 0 0 25 0 1 0 471618745 98820096 22766 33554432000 134512640 134603332 4293966768 18446744073709551615 134551031 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19252/statm: 24126 22766 98 23 0 23752 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 96504

Child status: 20
Real time (s): 4.38376
CPU time (s): 4.38233
CPU user time (s): 4.32934
CPU system time (s): 0.052991
CPU usage (%): 99.9675
Max. virtual memory (cumulated for all children) (KiB): 96504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.32934
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 22826
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= 2
involuntary context switches= 5

runsolver used 0.008998 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-26 06:27:14
IDJOB=3293852
IDBENCH=88185
IDSOLVER=1604
FILE ID=node140/3293852-1303792034
RUNJOBID= node140-1303791995-19164
PBS_JOBID= 13157249
Free space on /tmp= 72640 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-25-U-7061.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3293852-1303792034/watcher-3293852-1303792034 -o /tmp/evaluation-result-3293852-1303792034/solver-3293852-1303792034 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3293852-1303792034.cnf

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=1918863562

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:      22190112 kB
Buffers:       2245480 kB
Cached:        7262336 kB
SwapCached:          0 kB
Active:        2300864 kB
Inactive:      7890144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22190112 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:          297008 kB
Writeback:           0 kB
AnonPages:      682780 kB
Mapped:          15736 kB
Slab:           504652 kB
PageTables:       6156 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   892056 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= 72636 MiB
End job on node140 at 2011-04-26 06:27:19