Trace number 3422649

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 2.91156 2.91148

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 benchmark1.79273
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 

2.89/2.90	c WARNING: for repeatability, setting FPU to use double precision
2.89/2.90	c Solved by simplification
2.89/2.90	c restarts              : 0
2.89/2.90	c conflicts             : 0              (0 /sec)
2.89/2.90	c decisions             : 0              ( nan % random) (0 /sec)
2.89/2.90	c propagations          : 34400          (12288 /sec)
2.89/2.90	c conflict literals     : 0              ( nan % deleted)
2.89/2.90	c Memory used           : 275.00 MB
2.89/2.90	c CPU time              : 2.79957 s
2.89/2.90	
2.89/2.90	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-3422649-1306690115/watcher-3422649-1306690115 -o /tmp/evaluation-result-3422649-1306690115/solver-3422649-1306690115 -C 5000 -W 5100 -M 15500 HOME/ebminisat_release HOME/instance-3422649-1306690115.cnf -verb=0 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.09 1.03 1.13 2/572 24177
/proc/meminfo: memFree=23456248/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=32616 CPUtime=0 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 3616 0 0 0 0 0 0 0 23 0 1 0 780610463 33398784 3559 33554432000 4194304 4293939 140737015235056 18446744073709551615 4240881 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 8154 3560 219 25 0 4787 0

[startup+0.046237 s]
/proc/loadavg: 1.09 1.03 1.13 2/572 24177
/proc/meminfo: memFree=23456248/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=57816 CPUtime=0.04 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 8400 0 0 0 3 1 0 0 23 0 1 0 780610463 59203584 8274 33554432000 4194304 4293939 140737015235056 18446744073709551615 4280209 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 14454 8281 219 25 0 11087 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 57816

[startup+0.100224 s]
/proc/loadavg: 1.09 1.03 1.13 2/572 24177
/proc/meminfo: memFree=23456248/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=86460 CPUtime=0.09 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 14449 0 0 0 7 2 0 0 24 0 1 0 780610463 88535040 14304 33554432000 4194304 4293939 140737015235056 18446744073709551615 268272349893 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 21615 14304 219 25 0 18248 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 86460

[startup+0.300188 s]
/proc/loadavg: 1.09 1.03 1.13 2/572 24177
/proc/meminfo: memFree=23456248/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=121960 CPUtime=0.29 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 25081 0 0 0 26 3 0 0 25 0 1 0 780610463 124887040 23206 33554432000 4194304 4293939 140737015235056 18446744073709551615 268272350241 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 30490 23207 219 25 0 27123 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 121960

[startup+0.700116 s]
/proc/loadavg: 1.09 1.03 1.13 2/572 24177
/proc/meminfo: memFree=23456248/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=198204 CPUtime=0.69 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 45744 0 0 0 63 6 0 0 25 0 1 0 780610463 202960896 41190 33554432000 4194304 4293939 140737015235056 18446744073709551615 268272349893 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 49551 41192 219 25 0 46184 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 198204

[startup+1.50098 s]
/proc/loadavg: 1.09 1.03 1.13 3/573 24178
/proc/meminfo: memFree=23132112/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=211932 CPUtime=1.49 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 51422 0 0 0 142 7 0 0 25 0 1 0 780610463 217018368 45197 33554432000 4194304 4293939 140737015235056 18446744073709551615 4255332 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 52983 45197 225 25 0 49616 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 211932

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

[startup+2.30087 s]
/proc/loadavg: 1.09 1.03 1.13 3/573 24178
/proc/meminfo: memFree=23098636/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=282328 CPUtime=2.29 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 63316 0 0 0 221 8 0 0 25 0 1 0 780610463 289103872 56036 33554432000 4194304 4293939 140737015235056 18446744073709551615 4210114 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 70582 56038 225 25 0 67215 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 282328

[startup+2.70082 s]
/proc/loadavg: 1.09 1.03 1.13 3/573 24178
/proc/meminfo: memFree=23098636/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=237904 CPUtime=2.69 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 67875 0 0 0 260 9 0 0 25 0 1 0 780610463 243613696 50457 33554432000 4194304 4293939 140737015235056 18446744073709551615 4229798 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 59476 50457 225 25 0 56109 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 237904

[startup+2.90079 s]
/proc/loadavg: 1.09 1.03 1.13 3/573 24178
/proc/meminfo: memFree=23098636/32950928 swapFree=49808508/67111528
[pid=24177] ppid=24175 vsize=229904 CPUtime=2.89 cores=1,3,5,7
/proc/24177/stat : 24177 (ebminisat_relea) R 24175 24177 24112 0 -1 4202496 72492 0 0 0 279 10 0 0 25 0 1 0 780610463 235421696 47878 33554432000 4194304 4293939 140737015235056 18446744073709551615 4258725 0 0 4096 8388610 0 0 0 17 3 0 0 0
/proc/24177/statm: 57476 47878 225 25 0 54109 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 229904

Child status: 20
Real time (s): 2.91148
CPU time (s): 2.91156
CPU user time (s): 2.79957
CPU system time (s): 0.111982
CPU usage (%): 100.003
Max. virtual memory (cumulated for all children) (KiB): 282328

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.79957
system time used= 0.111982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 72522
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= 31

runsolver used 0.016997 second user time and 0.045993 second system time

The end

Launcher Data 

Begin job on node122 at 2011-05-29 19:28:37
IDJOB=3422649
IDBENCH=88185
IDSOLVER=1914
FILE ID=node122/3422649-1306690115
RUNJOBID= node122-1306690110-24131
PBS_JOBID= 13471852
Free space on /tmp= 73336 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-3422649-1306690115/watcher-3422649-1306690115 -o /tmp/evaluation-result-3422649-1306690115/solver-3422649-1306690115 -C 5000 -W 5100 -M 15500  HOME/ebminisat_release HOME/instance-3422649-1306690115.cnf  -verb=0

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=1969861060

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.83
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      23456652 kB
Buffers:        219812 kB
Cached:        2544932 kB
SwapCached:      60784 kB
Active:        1175556 kB
Inactive:      8046456 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      23456652 kB
SwapTotal:    67111528 kB
SwapFree:     49808508 kB
Dirty:          153744 kB
Writeback:           0 kB
AnonPages:     6410232 kB
Mapped:          11784 kB
Slab:           107572 kB
PageTables:      93940 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 181286728 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= 73336 MiB
End job on node122 at 2011-05-29 19:28:40