Trace number 3293776

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
SApperloT 2011-03-23UNSAT 6.74297 6.74418

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-18-U-10652.cnf
MD5SUMf0f11935e861485056485b47c5e1a7c3
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.08
Satisfiable
(Un)Satisfiability was proved
Number of variables1987351
Number of clauses5963534
Sum of the clauses size14253662
Maximum clause length1155
Minimum clause length1
Number of clauses of size 1109
Number of clauses of size 23971661
Number of clauses of size 31984242
Number of clauses of size 4766
Number of clauses of size 5765
Number of clauses of size over 55991

Solver Data 

6.69/6.73	
6.69/6.73	s UNSATISFIABLE
6.69/6.73	c Reason for Unsat: Learned empty clause

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: 935)

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-3293776-1303793519/watcher-3293776-1303793519 -o /tmp/evaluation-result-3293776-1303793519/solver-3293776-1303793519 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3293776-1303793519.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: 0.85 1.64 2.73 4/184 32574
/proc/meminfo: memFree=13128744/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=27864 CPUtime=0 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 2647 0 0 0 0 0 0 0 22 0 1 0 471768265 28532736 2587 33554432000 4194304 4465733 140736586252608 18446744073709551615 4286620 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 6966 2598 248 67 0 4089 0

[startup+0.0553259 s]
/proc/loadavg: 0.85 1.64 2.73 4/184 32574
/proc/meminfo: memFree=13128744/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=175884 CPUtime=0.04 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 18102 0 0 0 3 1 0 0 22 0 1 0 471768265 180105216 18029 33554432000 4194304 4465733 140736586252608 18446744073709551615 212039274070 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 43971 18029 250 67 0 41094 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 175884

[startup+0.100344 s]
/proc/loadavg: 0.85 1.64 2.73 4/184 32574
/proc/meminfo: memFree=13128744/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=175884 CPUtime=0.09 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 18790 0 0 0 7 2 0 0 22 0 1 0 471768265 180105216 18427 33554432000 4194304 4465733 140736586252608 18446744073709551615 4265327 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 43971 18427 250 67 0 41094 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 175884

[startup+0.300317 s]
/proc/loadavg: 0.85 1.64 2.73 4/184 32574
/proc/meminfo: memFree=13128744/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=175884 CPUtime=0.29 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 22136 0 0 0 26 3 0 0 23 0 1 0 471768265 180105216 21381 33554432000 4194304 4465733 140736586252608 18446744073709551615 212039655168 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 43971 21382 250 67 0 41094 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 175884

[startup+0.700242 s]
/proc/loadavg: 0.85 1.64 2.73 4/184 32574
/proc/meminfo: memFree=13128744/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=175884 CPUtime=0.69 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 28249 0 0 0 65 4 0 0 25 0 1 0 471768265 180105216 26831 33554432000 4194304 4465733 140736586252608 18446744073709551615 4295790 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 43971 26831 250 67 0 41094 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 175884

[startup+1.50111 s]
/proc/loadavg: 0.85 1.64 2.73 3/180 32592
/proc/meminfo: memFree=13068132/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=199180 CPUtime=1.49 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 51651 0 0 0 142 7 0 0 25 0 1 0 471768265 203960320 37296 33554432000 4194304 4465733 140736586252608 18446744073709551615 4295790 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 49795 37296 250 67 0 46918 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 199180

[startup+3.10081 s]
/proc/loadavg: 0.85 1.64 2.73 3/179 32592
/proc/meminfo: memFree=13013084/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=294748 CPUtime=3.09 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 113790 0 0 0 292 17 0 0 25 0 1 0 471768265 301821952 52222 33554432000 4194304 4465733 140736586252608 18446744073709551615 4270416 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 73687 52222 256 67 0 70810 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 294748

[startup+6.30021 s]
/proc/loadavg: 0.95 1.64 2.72 2/172 32609
/proc/meminfo: memFree=13044160/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=296068 CPUtime=6.29 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 114461 0 0 0 612 17 0 0 25 0 1 0 471768265 303173632 52857 33554432000 4194304 4465733 140736586252608 18446744073709551615 4270161 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 74017 52857 256 67 0 71140 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 296068

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

[startup+6.70117 s]
/proc/loadavg: 0.95 1.64 2.72 2/172 32609
/proc/meminfo: memFree=13048616/32951124 swapFree=67111528/67111528
[pid=32574] ppid=32572 vsize=296068 CPUtime=6.69 cores=0,2
/proc/32574/stat : 32574 (SApperloT) R 32572 32574 31696 0 -1 4202496 114461 0 0 0 652 17 0 0 25 0 1 0 471768265 303173632 52857 33554432000 4194304 4465733 140736586252608 18446744073709551615 4270040 0 0 4096 2 0 0 0 17 0 0 0 0
/proc/32574/statm: 74017 52857 256 67 0 71140 0
Current children cumulated CPU time (s) 6.69
Current children cumulated vsize (KiB) 296068

Child status: 20
Real time (s): 6.74418
CPU time (s): 6.74297
CPU user time (s): 6.555
CPU system time (s): 0.187971
CPU usage (%): 99.9821
Max. virtual memory (cumulated for all children) (KiB): 391372

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.555
system time used= 0.187971
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 114466
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= 22

runsolver used 0.015997 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node146 at 2011-04-26 06:52:00
IDJOB=3293776
IDBENCH=88172
IDSOLVER=1657
FILE ID=node146/3293776-1303793519
RUNJOBID= node146-1303793519-32545
PBS_JOBID= 13157252
Free space on /tmp= 72924 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-18-U-10652.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3293776-1303793519/watcher-3293776-1303793519 -o /tmp/evaluation-result-3293776-1303793519/solver-3293776-1303793519 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3293776-1303793519.cnf

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

MD5SUM BENCH= f0f11935e861485056485b47c5e1a7c3
RANDOM SEED=1617011709

node146.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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:      13128900 kB
Buffers:       2081420 kB
Cached:       17064868 kB
SwapCached:          0 kB
Active:       10103808 kB
Inactive:      9179968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      13128900 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:          176216 kB
Writeback:           0 kB
AnonPages:      136988 kB
Mapped:          14880 kB
Slab:           473372 kB
PageTables:       5112 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   323784 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= 72976 MiB
End job on node146 at 2011-04-26 06:52:07