Trace number 3349078

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: EBMiniSAT 2011-03-02UNSAT 3.33549 3.33626

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 

3.30/3.32	c WARNING: for repeatability, setting FPU to use double precision
3.30/3.32	c Solved by simplification
3.30/3.32	c restarts              : 0
3.30/3.32	c conflicts             : 0              (0 /sec)
3.30/3.32	c decisions             : 0              ( nan % random) (0 /sec)
3.30/3.32	c propagations          : 34400          (10752 /sec)
3.30/3.32	c conflict literals     : 0              ( nan % deleted)
3.30/3.32	c Memory used           : 275.00 MB
3.30/3.32	c CPU time              : 3.19951 s
3.30/3.32	
3.30/3.32	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-3349078-1304982649/watcher-3349078-1304982649 -o /tmp/evaluation-result-3349078-1304982649/solver-3349078-1304982649 -C 2400 -W 1300 -M 7680 HOME/ebminisat_release HOME/instance-3349078-1304982649.cnf -verb=0 

running on 2 cores: 0,2

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: 2.38 2.50 3.20 5/303 13765
/proc/meminfo: memFree=24526828/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=22696 CPUtime=0 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 1337 0 0 0 0 0 0 0 19 0 1 0 590680830 23240704 1281 33554432000 4194304 4293939 140733372603376 18446744073709551615 4275191 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 5674 1286 219 25 0 2307 0

[startup+0.0865149 s]
/proc/loadavg: 2.38 2.50 3.20 5/303 13765
/proc/meminfo: memFree=24526828/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=76312 CPUtime=0.07 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 12178 0 0 0 6 1 0 0 19 0 1 0 590680830 78143488 12041 33554432000 4194304 4293939 140733372603376 18446744073709551615 4240881 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 19078 12045 219 25 0 15711 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 76312

[startup+0.100512 s]
/proc/loadavg: 2.38 2.50 3.20 5/303 13765
/proc/meminfo: memFree=24526828/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=86028 CPUtime=0.09 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 13479 0 0 0 7 2 0 0 19 0 1 0 590680830 88092672 13341 33554432000 4194304 4293939 140733372603376 18446744073709551615 4280209 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 21507 13348 219 25 0 18140 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 86028

[startup+0.300476 s]
/proc/loadavg: 2.38 2.50 3.20 5/303 13765
/proc/meminfo: memFree=24526828/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=116012 CPUtime=0.29 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 22838 0 0 0 26 3 0 0 20 0 1 0 590680830 118796288 21507 33554432000 4194304 4293939 140733372603376 18446744073709551615 220815897285 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 29003 21508 219 25 0 25636 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 116012

[startup+0.700403 s]
/proc/loadavg: 2.38 2.50 3.20 5/303 13765
/proc/meminfo: memFree=24526828/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=185832 CPUtime=0.69 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 42150 0 0 0 62 7 0 0 20 0 1 0 590680830 190291968 37790 33554432000 4194304 4293939 140733372603376 18446744073709551615 220815897285 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 46491 37791 219 25 0 43124 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 185832

[startup+1.50027 s]
/proc/loadavg: 2.38 2.50 3.20 5/304 13766
/proc/meminfo: memFree=24344300/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=211028 CPUtime=1.49 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 50653 0 0 0 141 8 0 0 23 0 1 0 590680830 216092672 44448 33554432000 4194304 4293939 140733372603376 18446744073709551615 4225842 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 52757 44448 223 25 0 49390 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 211028

[startup+3.10099 s]
/proc/loadavg: 2.38 2.50 3.20 5/304 13766
/proc/meminfo: memFree=24316416/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=237900 CPUtime=3.09 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 67901 0 0 0 298 11 0 0 25 0 1 0 590680830 243609600 50481 33554432000 4194304 4293939 140733372603376 18446744073709551615 4220825 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 59475 50481 225 25 0 56108 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 237900

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

[startup+3.31095 s]
/proc/loadavg: 2.51 2.52 3.21 5/304 13766
/proc/meminfo: memFree=24316000/32951124 swapFree=63485424/67111528
[pid=13765] ppid=13763 vsize=229900 CPUtime=3.3 cores=0,2
/proc/13765/stat : 13765 (ebminisat_relea) R 13763 13765 12669 0 -1 4202496 72253 0 0 0 318 12 0 0 25 0 1 0 590680830 235417600 47687 33554432000 4194304 4293939 140733372603376 18446744073709551615 4257049 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/13765/statm: 57475 47688 225 25 0 54108 0
Current children cumulated CPU time (s) 3.3
Current children cumulated vsize (KiB) 229900

Child status: 20
Real time (s): 3.33626
CPU time (s): 3.33549
CPU user time (s): 3.20051
CPU system time (s): 0.134979
CPU usage (%): 99.9771
Max. virtual memory (cumulated for all children) (KiB): 282324

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.20051
system time used= 0.134979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 72520
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= 4
involuntary context switches= 12

runsolver used 0.009998 second user time and 0.030995 second system time

The end

Launcher Data 

Begin job on node147 at 2011-05-10 01:10:49
IDJOB=3349078
IDBENCH=88185
IDSOLVER=1812
FILE ID=node147/3349078-1304982649
RUNJOBID= node147-1304982617-13674
PBS_JOBID= 13285666
Free space on /tmp= 52572 MiB

SOLVER NAME= minisat hack: EBMiniSAT 2011-03-02
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-25-U-7061.cnf
COMMAND LINE= DIR/ebminisat_release BENCHNAME  -verb=0
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3349078-1304982649/watcher-3349078-1304982649 -o /tmp/evaluation-result-3349078-1304982649/solver-3349078-1304982649 -C 2400 -W 1300 -M 7680  HOME/ebminisat_release HOME/instance-3349078-1304982649.cnf  -verb=0

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=372939020

node147.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		: 2666.836
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	: 5333.67
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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		: 2666.836
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		: 2666.836
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	: 5332.76
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		: 2666.836
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		: 2666.836
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:      24527108 kB
Buffers:        174872 kB
Cached:        4100668 kB
SwapCached:      12852 kB
Active:        2038520 kB
Inactive:      6176932 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24527108 kB
SwapTotal:    67111528 kB
SwapFree:     63485424 kB
Dirty:          312040 kB
Writeback:           0 kB
AnonPages:     3935252 kB
Mapped:          15420 kB
Slab:           114580 kB
PageTables:      31264 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 45934600 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= 52572 MiB
End job on node147 at 2011-05-10 01:10:53