Trace number 3350277

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 4.82827 4.82788

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 benchmark3.97739
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 

4.79/4.82	c WARNING: for repeatability, setting FPU to use double precision
4.79/4.82	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-3350277-1304974622/watcher-3350277-1304974622 -o /tmp/evaluation-result-3350277-1304974622/solver-3350277-1304974622 -C 2400 -W 1300 -M 7680 contrasat_release HOME/instance-3350277-1304974622.cnf 

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: 3.85 3.71 3.53 4/307 23538
/proc/meminfo: memFree=4455820/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=26480 CPUtime=0 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 2121 0 0 0 0 0 0 0 25 0 1 0 609061856 27115520 2062 33554432000 4194304 4298156 140734779574176 18446744073709551615 208080290218 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 6727 2062 216 26 0 3359 0

[startup+0.0403871 s]
/proc/loadavg: 3.85 3.71 3.53 4/307 23538
/proc/meminfo: memFree=4455820/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=51048 CPUtime=0.03 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 6736 0 0 0 3 0 0 0 25 0 1 0 609061856 52273152 6617 33554432000 4194304 4298156 140734779574176 18446744073709551615 4241857 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 12762 6623 216 26 0 9394 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 51048

[startup+0.100484 s]
/proc/loadavg: 3.85 3.71 3.53 4/307 23538
/proc/meminfo: memFree=4455820/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=66920 CPUtime=0.09 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 10896 0 0 0 8 1 0 0 25 0 1 0 609061856 68526080 10658 33554432000 4194304 4298156 140734779574176 18446744073709551615 4283521 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 16730 10658 216 26 0 13362 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 66920

[startup+0.300398 s]
/proc/loadavg: 3.85 3.71 3.53 4/307 23538
/proc/meminfo: memFree=4455820/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=99080 CPUtime=0.29 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 21632 0 0 0 26 3 0 0 25 0 1 0 609061856 101457920 19337 33554432000 4194304 4298156 140734779574176 18446744073709551615 208079893189 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 24770 19339 216 26 0 21402 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 99080

[startup+0.700325 s]
/proc/loadavg: 3.85 3.71 3.53 4/307 23538
/proc/meminfo: memFree=4455820/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=158920 CPUtime=0.69 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 39569 0 0 0 63 6 0 0 25 0 1 0 609061856 162734080 33249 33554432000 4194304 4298156 140734779574176 18446744073709551615 4227669 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 39730 33249 222 26 0 36362 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 158920

[startup+1.50117 s]
/proc/loadavg: 3.85 3.71 3.53 5/308 23539
/proc/meminfo: memFree=4319856/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=162044 CPUtime=1.49 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 40819 0 0 0 143 6 0 0 25 0 1 0 609061856 165933056 34406 33554432000 4194304 4298156 140734779574176 18446744073709551615 4235629 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 40511 34407 222 26 0 37143 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 162044

[startup+3.10086 s]
/proc/loadavg: 3.85 3.71 3.53 5/308 23539
/proc/meminfo: memFree=4310556/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=171044 CPUtime=3.09 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 63466 0 0 0 300 9 0 0 25 0 1 0 609061856 175149056 36438 33554432000 4194304 4298156 140734779574176 18446744073709551615 4284838 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 42761 36438 223 26 0 39393 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 171044

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

[startup+3.90071 s]
/proc/loadavg: 3.85 3.71 3.53 5/308 23539
/proc/meminfo: memFree=4323860/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=153308 CPUtime=3.89 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 68120 0 0 0 379 10 0 0 25 0 1 0 609061856 156987392 30721 33554432000 4194304 4298156 140734779574176 18446744073709551615 4256293 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 38327 30721 239 26 0 34959 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 153308

[startup+4.30057 s]
/proc/loadavg: 3.85 3.71 3.53 5/308 23539
/proc/meminfo: memFree=4344320/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=153308 CPUtime=4.3 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 68168 0 0 0 420 10 0 0 25 0 1 0 609061856 156987392 30769 33554432000 4194304 4298156 140734779574176 18446744073709551615 4256524 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 38327 30769 239 26 0 34959 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 153308

[startup+4.70051 s]
/proc/loadavg: 3.85 3.71 3.53 5/308 23539
/proc/meminfo: memFree=4344320/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=153308 CPUtime=4.69 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 68182 0 0 0 459 10 0 0 25 0 1 0 609061856 156987392 30783 33554432000 4194304 4298156 140734779574176 18446744073709551615 4256277 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 38327 30783 239 26 0 34959 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 153308

[startup+4.80048 s]
/proc/loadavg: 3.85 3.71 3.53 5/308 23539
/proc/meminfo: memFree=4344320/32950928 swapFree=67083212/67111528
[pid=23538] ppid=23536 vsize=153308 CPUtime=4.79 cores=0,2
/proc/23538/stat : 23538 (contrasat_relea) R 23536 23538 22349 0 -1 4202496 68183 0 0 0 469 10 0 0 25 0 1 0 609061856 156987392 30784 33554432000 4194304 4298156 140734779574176 18446744073709551615 4256293 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/23538/statm: 38327 30784 239 26 0 34959 0
Current children cumulated CPU time (s) 4.79
Current children cumulated vsize (KiB) 153308

Child status: 20
Real time (s): 4.82788
CPU time (s): 4.82827
CPU user time (s): 4.71728
CPU system time (s): 0.110983
CPU usage (%): 100.008
Max. virtual memory (cumulated for all children) (KiB): 210352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.71728
system time used= 0.110983
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= 7
involuntary context switches= 12

runsolver used 0.019996 second user time and 0.034994 second system time

The end

Launcher Data 

Begin job on node127 at 2011-05-09 22:57:02
IDJOB=3350277
IDBENCH=88178
IDSOLVER=1816
FILE ID=node127/3350277-1304974622
RUNJOBID= node127-1304974556-23446
PBS_JOBID= 13285623
Free space on /tmp= 41736 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-3350277-1304974622/watcher-3350277-1304974622 -o /tmp/evaluation-result-3350277-1304974622/solver-3350277-1304974622 -C 2400 -W 1300 -M 7680  contrasat_release HOME/instance-3350277-1304974622.cnf

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

MD5SUM BENCH= b15321a24257fa4bdfd9c20c782f4c0e
RANDOM SEED=1138327527

node127.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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.74
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		: 2666.823
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	: 5332.86
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		: 2666.823
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		: 2666.823
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		: 2666.823
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	: 5332.60
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		: 2666.823
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:     32950928 kB
MemFree:       4455852 kB
Buffers:        220776 kB
Cached:       10196940 kB
SwapCached:       1588 kB
Active:       20619080 kB
Inactive:      7378492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4455852 kB
SwapTotal:    67111528 kB
SwapFree:     67083212 kB
Dirty:          485616 kB
Writeback:           0 kB
AnonPages:    17578800 kB
Mapped:          26732 kB
Slab:           383308 kB
PageTables:      50736 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 46432952 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= 41732 MiB
End job on node127 at 2011-05-09 22:57:07