Trace number 3422648

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 4.14837 4.14956

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-6-U-7061.cnf
MD5SUMb15321a24257fa4bdfd9c20c782f4c0e
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.00339
Satisfiable
(Un)Satisfiability was proved
Number of variables370048
Number of clauses1118066
Sum of the clauses size2910246
Maximum clause length493
Minimum clause length1
Number of clauses of size 194
Number of clauses of size 2742801
Number of clauses of size 3369913
Number of clauses of size 41454
Number of clauses of size 5618
Number of clauses of size over 53186

Solver Data 

4.09/4.14	c WARNING: for repeatability, setting FPU to use double precision
4.09/4.14	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-3422648-1306690203/watcher-3422648-1306690203 -o /tmp/evaluation-result-3422648-1306690203/solver-3422648-1306690203 -C 5000 -W 5100 -M 15500 contrasat_release HOME/instance-3422648-1306690203.cnf 

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: 3.13 2.33 2.10 2/498 18376
/proc/meminfo: memFree=28277380/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=31352 CPUtime=0 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 3048 0 0 0 0 0 0 0 23 0 1 0 780620025 32104448 2967 33554432000 4194304 4298156 140737305372880 18446744073709551615 4270110 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 7838 2972 216 26 0 4470 0

[startup+0.068289 s]
/proc/loadavg: 3.13 2.33 2.10 2/498 18376
/proc/meminfo: memFree=28277380/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=66264 CPUtime=0.05 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 9837 0 0 0 4 1 0 0 23 0 1 0 780620025 67854336 9609 33554432000 4194304 4298156 140737305372880 18446744073709551615 4284889 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 16566 9610 216 26 0 13198 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 66264

[startup+0.100283 s]
/proc/loadavg: 3.13 2.33 2.10 2/498 18376
/proc/meminfo: memFree=28277380/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=68192 CPUtime=0.09 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 11442 0 0 0 7 2 0 0 23 0 1 0 780620025 69828608 11149 33554432000 4194304 4298156 140737305372880 18446744073709551615 210646807237 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 17048 11151 216 26 0 13680 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 68192

[startup+0.300249 s]
/proc/loadavg: 3.13 2.33 2.10 2/498 18376
/proc/meminfo: memFree=28277380/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=111268 CPUtime=0.29 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 24176 0 0 0 25 4 0 0 25 0 1 0 780620025 113938432 21188 33554432000 4194304 4298156 140737305372880 18446744073709551615 210646807237 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 27817 21191 216 26 0 24449 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 111268

[startup+0.700182 s]
/proc/loadavg: 3.13 2.33 2.10 2/498 18376
/proc/meminfo: memFree=28277380/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=158924 CPUtime=0.69 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 39569 0 0 0 63 6 0 0 25 0 1 0 780620025 162738176 33249 33554432000 4194304 4298156 140737305372880 18446744073709551615 4227901 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 39731 33249 222 26 0 36363 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 158924

[startup+1.50105 s]
/proc/loadavg: 3.13 2.33 2.10 3/499 18377
/proc/meminfo: memFree=28154992/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=185548 CPUtime=1.49 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 43017 0 0 0 142 7 0 0 25 0 1 0 780620025 190001152 36274 33554432000 4194304 4298156 140737305372880 18446744073709551615 4231534 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 46387 36275 222 26 0 43019 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 185548

[startup+3.10078 s]
/proc/loadavg: 3.13 2.33 2.10 3/499 18377
/proc/meminfo: memFree=28142292/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=183648 CPUtime=3.09 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 64359 0 0 0 299 10 0 0 25 0 1 0 780620025 188055552 37185 33554432000 4194304 4298156 140737305372880 18446744073709551615 4227442 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 45912 37185 223 26 0 42544 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 183648

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

[startup+3.90064 s]
/proc/loadavg: 3.04 2.32 2.10 3/499 18377
/proc/meminfo: memFree=28137688/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=153312 CPUtime=3.89 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 68175 0 0 0 379 10 0 0 25 0 1 0 780620025 156991488 30776 33554432000 4194304 4298156 140737305372880 18446744073709551615 4257002 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 38328 30776 239 26 0 34960 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 153312

[startup+4.10159 s]
/proc/loadavg: 3.04 2.32 2.10 3/499 18377
/proc/meminfo: memFree=28137688/32951132 swapFree=59085548/67111528
[pid=18376] ppid=18374 vsize=153312 CPUtime=4.09 cores=1,3,5,7
/proc/18376/stat : 18376 (contrasat_relea) R 18374 18376 18210 0 -1 4202496 68183 0 0 0 399 10 0 0 25 0 1 0 780620025 156991488 30784 33554432000 4194304 4298156 140737305372880 18446744073709551615 4256826 0 0 4096 8388610 0 0 0 17 5 0 0 0
/proc/18376/statm: 38328 30784 239 26 0 34960 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 153312

Child status: 20
Real time (s): 4.14956
CPU time (s): 4.14837
CPU user time (s): 4.03339
CPU system time (s): 0.114982
CPU usage (%): 99.9713
Max. virtual memory (cumulated for all children) (KiB): 210356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.03339
system time used= 0.114982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 68189
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 0.022996 second user time and 0.050992 second system time

The end

Launcher Data 

Begin job on node129 at 2011-05-29 19:30:04
IDJOB=3422648
IDBENCH=88178
IDSOLVER=1915
FILE ID=node129/3422648-1306690203
RUNJOBID= node129-1306689476-18229
PBS_JOBID= 13471844
Free space on /tmp= 73124 MiB

SOLVER NAME= minisat hack: contrasat 2011-03-02
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-6-U-7061.cnf
COMMAND LINE= contrasat_release BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3422648-1306690203/watcher-3422648-1306690203 -o /tmp/evaluation-result-3422648-1306690203/solver-3422648-1306690203 -C 5000 -W 5100 -M 15500  contrasat_release HOME/instance-3422648-1306690203.cnf

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

MD5SUM BENCH= b15321a24257fa4bdfd9c20c782f4c0e
RANDOM SEED=1096834637

node129.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		: 2666.831
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.82
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		: 2666.831
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	: 5332.74
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		: 2666.831
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	: 5332.83
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		: 2666.831
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		: 2666.831
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      28277544 kB
Buffers:        219088 kB
Cached:        1753840 kB
SwapCached:      74212 kB
Active:         669948 kB
Inactive:      3775728 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      28277544 kB
SwapTotal:    67111528 kB
SwapFree:     59085548 kB
Dirty:           23012 kB
Writeback:           0 kB
AnonPages:     2409308 kB
Mapped:          18172 kB
Slab:           100796 kB
PageTables:      59352 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 147488212 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= 73124 MiB
End job on node129 at 2011-05-29 19:30:08