Trace number 252305

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, and are wall clock time (not CPU 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
CSPtoSAT+minisat 0.3UNSAT 25.1452 25.4117

General information on the benchmark

Namebmc/
bmc-ibm-07-04.xml
MD5SUM7252b5e6dcc44c0d47ccf130a56a55ef
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.55461
SatisfiableNO
(Un)Satisfiability was proved
Number of variables8710
Number of constraints48484
Maximum constraint arity33
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension48484
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c This is CSPtoSAT+minisat version 0.3
0.20	c (c) 2006 roussel@cril.univ-artois.fr
0.20	
0.20	c This solver internally uses a modified version of MiniSat2 version 061112
0.20	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.20	
0.20	c parsing...
3.43	c ...done
3.43	c #SATvar=34842 #SATclauses=60970 #CSPpredicates=48484
25.39	c SAT problem is solved
25.39	restarts              : 12
25.39	conflicts             : 22412          (893 /sec)
25.39	decisions             : 2621356        (1.94 % random) (104415 /sec)
25.39	propagations          : 16823668       (670127 /sec)
25.39	conflict literals     : 27616          (0.01 % deleted)
25.39	Memory used           : 21.50 MB
25.39	CPU time              : 25.1052 s
25.39	
25.39	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-252305-1168095633 -o ROOT/results/node25/solver-252305-1168095633 -C 1800 -M 900 /tmp/evaluation/252305-1168095633/CSPtoSAT+minisat /tmp/evaluation/252305-1168095633/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.93 1.99 1.81 5/86 2488
/proc/meminfo: memFree=1597472/2055920 swapFree=4192812/4192956
[pid=2487] ppid=2485 vsize=496 CPUtime=0
/proc/2487/stat : 2487 (CSPtoSAT+minisa) R 2485 2487 2115 0 -1 4194304 51 0 0 0 0 0 0 0 19 0 1 0 157956021 507904 36 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 3765028 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/2487/statm: 124 36 29 52 0 19 0

[startup+0.103707 s]
/proc/loadavg: 1.93 1.99 1.81 5/86 2488
/proc/meminfo: memFree=1597472/2055920 swapFree=4192812/4192956
[pid=2487] ppid=2485 vsize=7484 CPUtime=0.09
/proc/2487/stat : 2487 (CSPtoSAT+minisa) R 2485 2487 2115 0 -1 4194304 945 0 0 0 9 0 0 0 18 0 1 0 157956021 7663616 913 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134644687 0 0 4096 0 0 0 0 17 1 0 0
/proc/2487/statm: 1871 913 691 52 0 239 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7484

[startup+0.511775 s]
/proc/loadavg: 1.93 1.99 1.81 5/86 2488
/proc/meminfo: memFree=1597472/2055920 swapFree=4192812/4192956
[pid=2487] ppid=2485 vsize=13724 CPUtime=0.49
/proc/2487/stat : 2487 (CSPtoSAT+minisa) R 2485 2487 2115 0 -1 4194304 2421 0 0 0 49 0 0 0 22 0 1 0 157956021 14053376 2365 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4159266585 0 0 4096 0 0 0 0 17 1 0 0
/proc/2487/statm: 3431 2365 704 52 0 1799 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 13724

[startup+1.33491 s]
/proc/loadavg: 1.93 1.99 1.81 3/86 2488
/proc/meminfo: memFree=1588960/2055920 swapFree=4192812/4192956
[pid=2487] ppid=2485 vsize=16080 CPUtime=1.31
/proc/2487/stat : 2487 (CSPtoSAT+minisa) R 2485 2487 2115 0 -1 4194304 3006 0 0 0 130 1 0 0 25 0 1 0 157956021 16465920 2950 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 3901073 0 0 4096 0 0 0 0 17 1 0 0
/proc/2487/statm: 4020 2950 704 52 0 2388 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 16080

[startup+2.97319 s]
/proc/loadavg: 1.93 1.99 1.81 3/86 2488
/proc/meminfo: memFree=1585768/2055920 swapFree=4192812/4192956
[pid=2487] ppid=2485 vsize=20712 CPUtime=2.93
/proc/2487/stat : 2487 (CSPtoSAT+minisa) R 2485 2487 2115 0 -1 4194304 4207 0 0 0 292 1 0 0 25 0 1 0 157956021 21209088 4079 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4158411411 0 0 4096 0 0 0 0 17 1 0 0
/proc/2487/statm: 5178 4079 704 52 0 3546 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 20712

[startup+6.25676 s]
/proc/loadavg: 1.93 1.99 1.81 3/86 2488
/proc/meminfo: memFree=1582504/2055920 swapFree=4192812/4192956
[pid=2487] ppid=2485 vsize=21808 CPUtime=6.19
/proc/2487/stat : 2487 (CSPtoSAT+minisa) R 2485 2487 2115 0 -1 4194304 4602 0 0 0 617 2 0 0 25 0 1 0 157956021 22331392 4400 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134533072 0 0 4096 0 0 0 0 17 1 0 0
/proc/2487/statm: 5452 4400 721 52 0 3820 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 21808

[startup+12.7239 s]
/proc/loadavg: 1.94 1.99 1.81 3/86 2488
/proc/meminfo: memFree=1582248/2055920 swapFree=4192812/4192956
[pid=2487] ppid=2485 vsize=21808 CPUtime=12.59
/proc/2487/stat : 2487 (CSPtoSAT+minisa) R 2485 2487 2115 0 -1 4194304 4627 0 0 0 1257 2 0 0 25 0 1 0 157956021 22331392 4425 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134573712 0 0 4096 0 0 0 0 17 1 0 0
/proc/2487/statm: 5452 4425 721 52 0 3820 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 21808

Child status: 0
Real time (s): 25.4117
CPU time (s): 25.1452
CPU user time (s): 25.1132
CPU system time (s): 0.031995
CPU usage (%): 98.9511
Max. virtual memory (cumulated for all children) (KiB): 22016

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.1132
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4661
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= 13
involuntary context switches= 1038

runsolver used 0.026995 s user time and 0.090986 s system time

The end

Launcher Data (download as text)

Begin job on node25 on Sat Jan  6 15:00:34 UTC 2007


IDJOB= 252305
IDBENCH= 12920
FILE ID= node25/252305-1168095633

PBS_JOBID= 3476686

Free space on /tmp= 66542 MiB

BENCH NAME= HOME/pub/bench/CPAI06/bmc/bmc-ibm-07-04.xml
COMMAND LINE= /tmp/evaluation/252305-1168095633/CSPtoSAT+minisat /tmp/evaluation/252305-1168095633/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-252305-1168095633 -o ROOT/results/node25/solver-252305-1168095633 -C 1800 -M 900  /tmp/evaluation/252305-1168095633/CSPtoSAT+minisat /tmp/evaluation/252305-1168095633/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  7252b5e6dcc44c0d47ccf130a56a55ef

RANDOM SEED= 615755892

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.279
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.279
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1598016 kB
Buffers:         46500 kB
Cached:         269768 kB
SwapCached:          0 kB
Active:         126276 kB
Inactive:       259984 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1598016 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            8124 kB
Writeback:           0 kB
Mapped:          92464 kB
Slab:            56444 kB
Committed_AS:  2969732 kB
PageTables:       2308 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66542 MiB



End job on node25 on Sat Jan  6 15:01:03 UTC 2007