Trace number 3350451

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: contrasat 2011-03-02UNSAT 4.91325 4.9145

General information on the benchmark

Nameapplication/jarvisalo/smtqfbv-aigs/
smtlib-qfbv-aigs-lfsr_004_127_112-tseitin.cnf
MD5SUMa78f49949ed32c6f8eea9d5e428c909d
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.02439
Satisfiable
(Un)Satisfiability was proved
Number of variables350506
Number of clauses878969
Sum of the clauses size2050925
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2585978
Number of clauses of size 3292989
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

4.89/4.90	c WARNING: for repeatability, setting FPU to use double precision
4.89/4.90	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-3350451-1304971111/watcher-3350451-1304971111 -o /tmp/evaluation-result-3350451-1304971111/solver-3350451-1304971111 -C 2400 -W 1300 -M 7680 contrasat_release HOME/instance-3350451-1304971111.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: 0.92 1.56 2.47 5/359 2516
/proc/meminfo: memFree=6175216/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=20588 CPUtime=0 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 918 0 0 0 0 0 0 0 21 0 1 0 608707824 21082112 860 33554432000 4194304 4298156 140736337126960 18446744073709551615 4241747 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 5147 870 215 26 0 1779 0

[startup+0.0196551 s]
/proc/loadavg: 0.92 1.56 2.47 5/359 2516
/proc/meminfo: memFree=6175216/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=29596 CPUtime=0.01 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 2823 0 0 0 1 0 0 0 21 0 1 0 608707824 30306304 2693 33554432000 4194304 4298156 140736337126960 18446744073709551615 4284982 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 7399 2699 216 26 0 4031 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 29596

[startup+0.100641 s]
/proc/loadavg: 0.92 1.56 2.47 5/359 2516
/proc/meminfo: memFree=6175216/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=52844 CPUtime=0.08 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 9298 0 0 0 8 0 0 0 21 0 1 0 608707824 54112256 8308 33554432000 4194304 4298156 140736337126960 18446744073709551615 4284818 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 13211 8309 216 26 0 9843 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 52844

[startup+0.300602 s]
/proc/loadavg: 0.92 1.56 2.47 5/359 2516
/proc/meminfo: memFree=6175216/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=103596 CPUtime=0.29 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 24057 0 0 0 26 3 0 0 22 0 1 0 608707824 106082304 20900 33554432000 4194304 4298156 140736337126960 18446744073709551615 4284982 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 25899 20902 216 26 0 22531 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 103596

[startup+0.700532 s]
/proc/loadavg: 0.92 1.56 2.47 5/359 2516
/proc/meminfo: memFree=6175216/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=160924 CPUtime=0.69 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 37798 0 0 0 63 6 0 0 23 0 1 0 608707824 164786176 32618 33554432000 4194304 4298156 140736337126960 18446744073709551615 4284838 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 40231 32618 222 26 0 36863 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 160924

[startup+1.50036 s]
/proc/loadavg: 0.92 1.56 2.47 5/363 2523
/proc/meminfo: memFree=5857752/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=170884 CPUtime=1.49 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 53775 0 0 0 142 7 0 0 25 0 1 0 608707824 174985216 33226 33554432000 4194304 4298156 140736337126960 18446744073709551615 4234043 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 42721 33226 223 26 0 39353 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 170884

[startup+3.10105 s]
/proc/loadavg: 1.17 1.60 2.48 5/361 2526
/proc/meminfo: memFree=5971848/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=155024 CPUtime=3.09 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 54153 0 0 0 302 7 0 0 25 0 1 0 608707824 158744576 30173 33554432000 4194304 4298156 140736337126960 18446744073709551615 4256262 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 38756 30173 242 26 0 35388 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 155024

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

[startup+3.90089 s]
/proc/loadavg: 1.17 1.60 2.48 5/360 2526
/proc/meminfo: memFree=5970120/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=155024 CPUtime=3.89 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 54153 0 0 0 382 7 0 0 25 0 1 0 608707824 158744576 30173 33554432000 4194304 4298156 140736337126960 18446744073709551615 4256623 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 38756 30173 242 26 0 35388 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 155024

[startup+4.70072 s]
/proc/loadavg: 1.17 1.60 2.48 4/359 2546
/proc/meminfo: memFree=5994804/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=155024 CPUtime=4.69 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 54153 0 0 0 462 7 0 0 25 0 1 0 608707824 158744576 30173 33554432000 4194304 4298156 140736337126960 18446744073709551615 4256497 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 38756 30173 242 26 0 35388 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 155024

[startup+4.90069 s]
/proc/loadavg: 1.17 1.60 2.48 4/359 2546
/proc/meminfo: memFree=5994804/32950928 swapFree=45936960/67111528
[pid=2516] ppid=2514 vsize=155024 CPUtime=4.89 cores=4,6
/proc/2516/stat : 2516 (contrasat_relea) R 2514 2516 2035 0 -1 4202496 54153 0 0 0 482 7 0 0 25 0 1 0 608707824 158744576 30173 33554432000 4194304 4298156 140736337126960 18446744073709551615 4256784 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/2516/statm: 38756 30173 242 26 0 35388 0
Current children cumulated CPU time (s) 4.89
Current children cumulated vsize (KiB) 155024

Child status: 20
Real time (s): 4.9145
CPU time (s): 4.91325
CPU user time (s): 4.83027
CPU system time (s): 0.082987
CPU usage (%): 99.9746
Max. virtual memory (cumulated for all children) (KiB): 170884

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.83026
system time used= 0.082987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 54158
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= 5
involuntary context switches= 8

runsolver used 0.016997 second user time and 0.048992 second system time

The end

Launcher Data 

Begin job on node149 at 2011-05-09 21:58:31
IDJOB=3350451
IDBENCH=82444
IDSOLVER=1816
FILE ID=node149/3350451-1304971111
RUNJOBID= node149-1304971111-2481
PBS_JOBID= 13285601
Free space on /tmp= 42468 MiB

SOLVER NAME= minisat hack: contrasat 2011-03-02
BENCH NAME= SAT11/application/jarvisalo/smtqfbv-aigs/smtlib-qfbv-aigs-lfsr_004_127_112-tseitin.cnf
COMMAND LINE= contrasat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3350451-1304971111/watcher-3350451-1304971111 -o /tmp/evaluation-result-3350451-1304971111/solver-3350451-1304971111 -C 2400 -W 1300 -M 7680  contrasat_release HOME/instance-3350451-1304971111.cnf

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

MD5SUM BENCH= a78f49949ed32c6f8eea9d5e428c909d
RANDOM SEED=1794943353

node149.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		: 2666.806
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	: 5333.61
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		: 2666.806
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	: 5332.83
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		: 2666.806
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		: 2666.806
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	: 5332.73
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		: 2666.806
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	: 5332.82
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		: 2666.806
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		: 2666.806
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	: 5332.82
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		: 2666.806
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:     32950928 kB
MemFree:       6176132 kB
Buffers:        239992 kB
Cached:       21368996 kB
SwapCached:      21336 kB
Active:       11605928 kB
Inactive:     14410488 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       6176132 kB
SwapTotal:    67111528 kB
SwapFree:     45936960 kB
Dirty:           40896 kB
Writeback:           0 kB
AnonPages:     4398664 kB
Mapped:          14324 kB
Slab:           620728 kB
PageTables:      72760 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 80311284 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= 42464 MiB
End job on node149 at 2011-05-09 21:58:36